1 | ## Author: AS |
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2 | def errormess(text,printvar=None): |
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3 | print text |
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4 | if printvar: print printvar |
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5 | exit() |
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6 | return |
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7 | |
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8 | ## Author: AS |
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9 | def adjust_length (tab, zelen): |
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10 | from numpy import ones |
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11 | if tab is None: |
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12 | outtab = ones(zelen) * -999999 |
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13 | else: |
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14 | if zelen != len(tab): |
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15 | print "not enough or too much values... setting same values all variables" |
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16 | outtab = ones(zelen) * tab[0] |
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17 | else: |
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18 | outtab = tab |
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19 | return outtab |
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20 | |
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21 | ## Author: AS |
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22 | def getname(var=False,winds=False,anomaly=False): |
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23 | if var and winds: basename = var + '_UV' |
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24 | elif var: basename = var |
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25 | elif winds: basename = 'UV' |
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26 | else: errormess("please set at least winds or var",printvar=nc.variables) |
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27 | if anomaly: basename = 'd' + basename |
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28 | return basename |
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29 | |
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30 | ## Author: AS |
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31 | def localtime(utc,lon): |
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32 | ltst = utc + lon / 15. |
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33 | ltst = int (ltst * 10) / 10. |
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34 | ltst = ltst % 24 |
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35 | return ltst |
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36 | |
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37 | ## Author: AS |
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38 | def whatkindfile (nc): |
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39 | if 'controle' in nc.variables: typefile = 'gcm' |
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40 | elif 'phisinit' in nc.variables: typefile = 'gcm' |
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41 | elif 'vert' in nc.variables: typefile = 'mesoapi' |
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42 | elif 'U' in nc.variables: typefile = 'meso' |
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43 | elif 'HGT_M' in nc.variables: typefile = 'geo' |
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44 | #else: errormess("whatkindfile: typefile not supported.") |
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45 | else: typefile = 'gcm' # for lslin-ed files from gcm |
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46 | return typefile |
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47 | |
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48 | ## Author: AS |
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49 | def getfield (nc,var): |
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50 | ## this allows to get much faster (than simply referring to nc.variables[var]) |
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51 | import numpy as np |
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52 | dimension = len(nc.variables[var].dimensions) |
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53 | #print " Opening variable with", dimension, "dimensions ..." |
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54 | if dimension == 2: field = nc.variables[var][:,:] |
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55 | elif dimension == 3: field = nc.variables[var][:,:,:] |
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56 | elif dimension == 4: field = nc.variables[var][:,:,:,:] |
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57 | # if there are NaNs in the ncdf, they should be loaded as a masked array which will be |
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58 | # recasted as a regular array later in reducefield |
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59 | if (np.isnan(np.sum(field)) and (type(field).__name__ not in 'MaskedArray')): |
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60 | print "Warning: netcdf as nan values but is not loaded as a Masked Array." |
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61 | print "recasting array type" |
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62 | out=np.ma.masked_invalid(field) |
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63 | out.set_fill_value([np.NaN]) |
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64 | else: |
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65 | out=field |
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66 | return out |
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67 | |
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68 | ## Author: AS + TN + AC |
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69 | def reducefield (input,d4=None,d3=None,d2=None,d1=None,yint=False,alt=None): |
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70 | ### we do it the reverse way to be compliant with netcdf "t z y x" or "t y x" or "y x" |
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71 | ### it would be actually better to name d4 d3 d2 d1 as t z y x |
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72 | import numpy as np |
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73 | from mymath import max,mean |
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74 | dimension = np.array(input).ndim |
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75 | shape = np.array(input).shape |
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76 | #print 'd1,d2,d3,d4: ',d1,d2,d3,d4 |
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77 | print 'IN REDUCEFIELD dim,shape: ',dimension,shape |
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78 | output = input |
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79 | error = False |
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80 | #### this is needed to cope the case where d4,d3,d2,d1 are single integers and not arrays |
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81 | if d4 is not None and not isinstance(d4, np.ndarray): d4=[d4] |
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82 | if d3 is not None and not isinstance(d3, np.ndarray): d3=[d3] |
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83 | if d2 is not None and not isinstance(d2, np.ndarray): d2=[d2] |
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84 | if d1 is not None and not isinstance(d1, np.ndarray): d1=[d1] |
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85 | ### now the main part |
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86 | if dimension == 2: |
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87 | if d2 >= shape[0]: error = True |
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88 | elif d1 >= shape[1]: error = True |
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89 | elif d1 is not None and d2 is not None: output = mean(input[d2,:],axis=0); output = mean(output[d1],axis=0) |
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90 | elif d1 is not None: output = mean(input[:,d1],axis=1) |
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91 | elif d2 is not None: output = mean(input[d2,:],axis=0) |
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92 | elif dimension == 3: |
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93 | if max(d4) >= shape[0]: error = True |
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94 | elif max(d2) >= shape[1]: error = True |
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95 | elif max(d1) >= shape[2]: error = True |
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96 | elif d4 is not None and d2 is not None and d1 is not None: |
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97 | output = mean(input[d4,:,:],axis=0); output = mean(output[d2,:],axis=0); output = mean(output[d1],axis=0) |
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98 | elif d4 is not None and d2 is not None: output = mean(input[d4,:,:],axis=0); output=mean(output[d2,:],axis=0) |
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99 | elif d4 is not None and d1 is not None: output = mean(input[d4,:,:],axis=0); output=mean(output[:,d1],axis=1) |
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100 | elif d2 is not None and d1 is not None: output = mean(input[:,d2,:],axis=1); output=mean(output[:,d1],axis=1) |
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101 | elif d1 is not None: output = mean(input[:,:,d1],axis=2) |
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102 | elif d2 is not None: output = mean(input[:,d2,:],axis=1) |
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103 | elif d4 is not None: output = mean(input[d4,:,:],axis=0) |
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104 | elif dimension == 4: |
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105 | if max(d4) >= shape[0]: error = True |
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106 | elif max(d3) >= shape[1]: error = True |
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107 | elif max(d2) >= shape[2]: error = True |
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108 | elif max(d1) >= shape[3]: error = True |
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109 | elif d4 is not None and d3 is not None and d2 is not None and d1 is not None: |
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110 | output = mean(input[d4,:,:,:],axis=0) |
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111 | output = reduce_zaxis(output[d3,:,:],ax=0,yint=yint,vert=alt,indice=d3) |
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112 | output = mean(output[d2,:],axis=0) |
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113 | output = mean(output[d1],axis=0) |
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114 | elif d4 is not None and d3 is not None and d2 is not None: |
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115 | output = mean(input[d4,:,:,:],axis=0) |
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116 | output = reduce_zaxis(output[d3,:,:],ax=0,yint=yint,vert=alt,indice=d3) |
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117 | output = mean(output[d2,:],axis=0) |
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118 | elif d4 is not None and d3 is not None and d1 is not None: |
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119 | output = mean(input[d4,:,:,:],axis=0) |
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120 | output = reduce_zaxis(output[d3,:,:],ax=0,yint=yint,vert=alt,indice=d3) |
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121 | output = mean(output[:,d1],axis=1) |
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122 | elif d4 is not None and d2 is not None and d1 is not None: |
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123 | output = mean(input[d4,:,:,:],axis=0) |
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124 | output = mean(output[:,d2,:],axis=1) |
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125 | output = mean(output[:,d1],axis=1) |
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126 | elif d3 is not None and d2 is not None and d1 is not None: |
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127 | output = reduce_zaxis(input[:,d3,:,:],ax=1,yint=yint,vert=alt,indice=d3) |
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128 | output = mean(output[:,d2,:],axis=1) |
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129 | output = mean(output[:,d1],axis=1) |
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130 | elif d4 is not None and d3 is not None: |
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131 | output = mean(input[d4,:,:,:],axis=0) |
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132 | output = reduce_zaxis(output[d3,:,:],ax=0,yint=yint,vert=alt,indice=d3) |
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133 | elif d4 is not None and d2 is not None: |
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134 | output = mean(input[d4,:,:,:],axis=0) |
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135 | output = mean(output[:,d2,:],axis=1) |
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136 | elif d4 is not None and d1 is not None: |
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137 | output = mean(input[d4,:,:,:],axis=0) |
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138 | output = mean(output[:,:,d1],axis=2) |
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139 | elif d3 is not None and d2 is not None: |
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140 | output = reduce_zaxis(input[:,d3,:,:],ax=1,yint=yint,vert=alt,indice=d3) |
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141 | output = mean(output[:,d2,:],axis=1) |
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142 | elif d3 is not None and d1 is not None: |
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143 | output = reduce_zaxis(input[:,d3,:,:],ax=1,yint=yint,vert=alt,indice=d3) |
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144 | output = mean(output[:,:,d1],axis=0) |
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145 | elif d2 is not None and d1 is not None: |
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146 | output = mean(input[:,:,d2,:],axis=2) |
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147 | output = mean(output[:,:,d1],axis=2) |
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148 | elif d1 is not None: output = mean(input[:,:,:,d1],axis=3) |
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149 | elif d2 is not None: output = mean(input[:,:,d2,:],axis=2) |
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150 | elif d3 is not None: output = reduce_zaxis(input[:,d3,:,:],ax=0,yint=yint,vert=alt,indice=d3) |
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151 | elif d4 is not None: output = mean(input[d4,:,:,:],axis=0) |
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152 | dimension = np.array(output).ndim |
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153 | shape = np.array(output).shape |
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154 | print 'OUT REDUCEFIELD dim,shape: ',dimension,shape |
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155 | return output, error |
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156 | |
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157 | ## Author: AC + AS |
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158 | def reduce_zaxis (input,ax=None,yint=False,vert=None,indice=None): |
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159 | from mymath import max,mean |
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160 | from scipy import integrate |
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161 | if yint and vert is not None and indice is not None: |
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162 | if type(input).__name__=='MaskedArray': |
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163 | input.set_fill_value([np.NaN]) |
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164 | output = integrate.trapz(input.filled(),x=vert[indice],axis=ax) |
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165 | else: |
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166 | output = integrate.trapz(input,x=vert[indice],axis=ax) |
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167 | else: |
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168 | output = mean(input,axis=ax) |
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169 | return output |
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170 | |
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171 | ## Author: AS + TN |
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172 | def definesubplot ( numplot, fig ): |
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173 | from matplotlib.pyplot import rcParams |
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174 | rcParams['font.size'] = 12. ## default (important for multiple calls) |
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175 | if numplot <= 0: |
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176 | subv = 99999 |
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177 | subh = 99999 |
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178 | elif numplot == 1: |
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179 | subv = 99999 |
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180 | subh = 99999 |
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181 | elif numplot == 2: |
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182 | subv = 1 |
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183 | subh = 2 |
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184 | fig.subplots_adjust(wspace = 0.35) |
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185 | rcParams['font.size'] = int( rcParams['font.size'] * 3. / 4. ) |
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186 | elif numplot == 3: |
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187 | subv = 2 |
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188 | subh = 2 |
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189 | fig.subplots_adjust(wspace = 0.5) |
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190 | rcParams['font.size'] = int( rcParams['font.size'] * 1. / 2. ) |
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191 | elif numplot == 4: |
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192 | subv = 2 |
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193 | subh = 2 |
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194 | fig.subplots_adjust(wspace = 0.3, hspace = 0.3) |
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195 | rcParams['font.size'] = int( rcParams['font.size'] * 2. / 3. ) |
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196 | elif numplot <= 6: |
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197 | subv = 2 |
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198 | subh = 3 |
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199 | fig.subplots_adjust(wspace = 0.4, hspace = 0.0) |
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200 | rcParams['font.size'] = int( rcParams['font.size'] * 1. / 2. ) |
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201 | elif numplot <= 8: |
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202 | subv = 2 |
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203 | subh = 4 |
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204 | fig.subplots_adjust(wspace = 0.3, hspace = 0.3) |
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205 | rcParams['font.size'] = int( rcParams['font.size'] * 1. / 2. ) |
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206 | elif numplot <= 9: |
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207 | subv = 3 |
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208 | subh = 3 |
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209 | fig.subplots_adjust(wspace = 0.3, hspace = 0.3) |
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210 | rcParams['font.size'] = int( rcParams['font.size'] * 1. / 2. ) |
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211 | elif numplot <= 12: |
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212 | subv = 3 |
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213 | subh = 4 |
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214 | fig.subplots_adjust(wspace = 0.1, hspace = 0.1) |
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215 | rcParams['font.size'] = int( rcParams['font.size'] * 1. / 2. ) |
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216 | elif numplot <= 16: |
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217 | subv = 4 |
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218 | subh = 4 |
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219 | fig.subplots_adjust(wspace = 0.3, hspace = 0.3) |
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220 | rcParams['font.size'] = int( rcParams['font.size'] * 1. / 2. ) |
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221 | else: |
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222 | print "number of plot supported: 1 to 16" |
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223 | exit() |
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224 | return subv,subh |
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225 | |
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226 | ## Author: AS |
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227 | def getstralt(nc,nvert): |
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228 | typefile = whatkindfile(nc) |
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229 | if typefile is 'meso': |
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230 | stralt = "_lvl" + str(nvert) |
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231 | elif typefile is 'mesoapi': |
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232 | zelevel = int(nc.variables['vert'][nvert]) |
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233 | if abs(zelevel) < 10000.: strheight=str(zelevel)+"m" |
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234 | else: strheight=str(int(zelevel/1000.))+"km" |
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235 | if 'altitude' in nc.dimensions: stralt = "_"+strheight+"-AMR" |
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236 | elif 'altitude_abg' in nc.dimensions: stralt = "_"+strheight+"-ALS" |
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237 | elif 'bottom_top' in nc.dimensions: stralt = "_"+strheight |
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238 | elif 'pressure' in nc.dimensions: stralt = "_"+str(zelevel)+"Pa" |
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239 | else: stralt = "" |
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240 | else: |
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241 | stralt = "" |
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242 | return stralt |
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243 | |
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244 | ## Author: AS |
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245 | def getlschar ( namefile ): |
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246 | from netCDF4 import Dataset |
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247 | from timestuff import sol2ls |
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248 | from numpy import array |
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249 | nc = Dataset(namefile) |
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250 | zetime = None |
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251 | if 'Times' in nc.variables: |
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252 | zetime = nc.variables['Times'][0] |
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253 | shape = array(nc.variables['Times']).shape |
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254 | if shape[0] < 2: zetime = None |
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255 | if zetime is not None \ |
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256 | and 'vert' not in nc.variables: |
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257 | #### strangely enough this does not work for api or ncrcat results! |
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258 | zetimestart = getattr(nc, 'START_DATE') |
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259 | zeday = int(zetime[8]+zetime[9]) - int(zetimestart[8]+zetimestart[9]) |
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260 | if zeday < 0: lschar="" ## might have crossed a month... fix soon |
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261 | else: lschar="_Ls"+str( int( 10. * sol2ls ( getattr( nc, 'JULDAY' ) + zeday ) ) / 10. ) |
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262 | ### |
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263 | zetime2 = nc.variables['Times'][1] |
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264 | one = int(zetime[11]+zetime[12]) + int(zetime[14]+zetime[15])/37. |
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265 | next = int(zetime2[11]+zetime2[12]) + int(zetime2[14]+zetime2[15])/37. |
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266 | zehour = one |
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267 | zehourin = abs ( next - one ) |
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268 | else: |
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269 | lschar="" |
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270 | zehour = 0 |
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271 | zehourin = 1 |
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272 | return lschar, zehour, zehourin |
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273 | |
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274 | ## Author: AS |
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275 | def getprefix (nc): |
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276 | prefix = 'LMD_MMM_' |
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277 | prefix = prefix + 'd'+str(getattr(nc,'GRID_ID'))+'_' |
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278 | prefix = prefix + str(int(getattr(nc,'DX')/1000.))+'km_' |
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279 | return prefix |
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280 | |
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281 | ## Author: AS |
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282 | def getproj (nc): |
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283 | typefile = whatkindfile(nc) |
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284 | if typefile in ['mesoapi','meso','geo']: |
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285 | ### (il faudrait passer CEN_LON dans la projection ?) |
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286 | map_proj = getattr(nc, 'MAP_PROJ') |
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287 | cen_lat = getattr(nc, 'CEN_LAT') |
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288 | if map_proj == 2: |
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289 | if cen_lat > 10.: |
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290 | proj="npstere" |
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291 | #print "NP stereographic polar domain" |
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292 | else: |
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293 | proj="spstere" |
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294 | #print "SP stereographic polar domain" |
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295 | elif map_proj == 1: |
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296 | #print "lambert projection domain" |
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297 | proj="lcc" |
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298 | elif map_proj == 3: |
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299 | #print "mercator projection" |
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300 | proj="merc" |
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301 | else: |
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302 | proj="merc" |
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303 | elif typefile in ['gcm']: proj="cyl" ## pb avec les autres (de trace derriere la sphere ?) |
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304 | else: proj="ortho" |
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305 | return proj |
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306 | |
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307 | ## Author: AS |
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308 | def ptitle (name): |
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309 | from matplotlib.pyplot import title |
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310 | title(name) |
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311 | print name |
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312 | |
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313 | ## Author: AS |
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314 | def polarinterv (lon2d,lat2d): |
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315 | import numpy as np |
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316 | wlon = [np.min(lon2d),np.max(lon2d)] |
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317 | ind = np.array(lat2d).shape[0] / 2 ## to get a good boundlat and to get the pole |
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318 | wlat = [np.min(lat2d[ind,:]),np.max(lat2d[ind,:])] |
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319 | return [wlon,wlat] |
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320 | |
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321 | ## Author: AS |
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322 | def simplinterv (lon2d,lat2d): |
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323 | import numpy as np |
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324 | return [[np.min(lon2d),np.max(lon2d)],[np.min(lat2d),np.max(lat2d)]] |
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325 | |
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326 | ## Author: AS |
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327 | def wrfinterv (lon2d,lat2d): |
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328 | nx = len(lon2d[0,:])-1 |
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329 | ny = len(lon2d[:,0])-1 |
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330 | lon1 = lon2d[0,0] |
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331 | lon2 = lon2d[nx,ny] |
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332 | lat1 = lat2d[0,0] |
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333 | lat2 = lat2d[nx,ny] |
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334 | if abs(0.5*(lat1+lat2)) > 60.: wider = 0.5 * (abs(lon1)+abs(lon2)) * 0.1 |
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335 | else: wider = 0. |
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336 | if lon1 < lon2: wlon = [lon1, lon2 + wider] |
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337 | else: wlon = [lon2, lon1 + wider] |
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338 | if lat1 < lat2: wlat = [lat1, lat2] |
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339 | else: wlat = [lat2, lat1] |
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340 | return [wlon,wlat] |
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341 | |
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342 | ## Author: AS |
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343 | def makeplotres (filename,res=None,pad_inches_value=0.25,folder='',disp=True,ext='png',erase=False): |
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344 | import matplotlib.pyplot as plt |
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345 | from os import system |
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346 | addstr = "" |
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347 | if res is not None: |
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348 | res = int(res) |
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349 | addstr = "_"+str(res) |
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350 | name = filename+addstr+"."+ext |
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351 | if folder != '': name = folder+'/'+name |
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352 | plt.savefig(name,dpi=res,bbox_inches='tight',pad_inches=pad_inches_value) |
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353 | if disp: display(name) |
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354 | if ext in ['eps','ps','svg']: system("tar czvf "+name+".tar.gz "+name+" ; rm -f "+name) |
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355 | if erase: system("mv "+name+" to_be_erased") |
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356 | return |
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357 | |
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358 | ## Author: AS |
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359 | def dumpbdy (field,n,stag=None): |
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360 | nx = len(field[0,:])-1 |
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361 | ny = len(field[:,0])-1 |
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362 | if stag == 'U': nx = nx-1 |
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363 | if stag == 'V': ny = ny-1 |
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364 | return field[n:ny-n,n:nx-n] |
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365 | |
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366 | ## Author: AS |
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367 | def getcoorddef ( nc ): |
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368 | import numpy as np |
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369 | ## getcoord2d for predefined types |
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370 | typefile = whatkindfile(nc) |
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371 | if typefile in ['mesoapi','meso']: |
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372 | [lon2d,lat2d] = getcoord2d(nc) |
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373 | lon2d = dumpbdy(lon2d,6) |
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374 | lat2d = dumpbdy(lat2d,6) |
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375 | elif typefile in ['gcm']: |
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376 | [lon2d,lat2d] = getcoord2d(nc,nlat="latitude",nlon="longitude",is1d=True) |
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377 | elif typefile in ['geo']: |
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378 | [lon2d,lat2d] = getcoord2d(nc,nlat='XLAT_M',nlon='XLONG_M') |
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379 | return lon2d,lat2d |
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380 | |
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381 | ## Author: AS |
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382 | def getcoord2d (nc,nlat='XLAT',nlon='XLONG',is1d=False): |
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383 | import numpy as np |
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384 | if is1d: |
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385 | lat = nc.variables[nlat][:] |
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386 | lon = nc.variables[nlon][:] |
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387 | [lon2d,lat2d] = np.meshgrid(lon,lat) |
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388 | else: |
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389 | lat = nc.variables[nlat][0,:,:] |
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390 | lon = nc.variables[nlon][0,:,:] |
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391 | [lon2d,lat2d] = [lon,lat] |
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392 | return lon2d,lat2d |
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393 | |
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394 | ## Author: AS |
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395 | def smooth (field, coeff): |
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396 | ## actually blur_image could work with different coeff on x and y |
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397 | if coeff > 1: result = blur_image(field,int(coeff)) |
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398 | else: result = field |
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399 | return result |
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400 | |
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401 | ## FROM COOKBOOK http://www.scipy.org/Cookbook/SignalSmooth |
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402 | def gauss_kern(size, sizey=None): |
---|
403 | import numpy as np |
---|
404 | # Returns a normalized 2D gauss kernel array for convolutions |
---|
405 | size = int(size) |
---|
406 | if not sizey: |
---|
407 | sizey = size |
---|
408 | else: |
---|
409 | sizey = int(sizey) |
---|
410 | x, y = np.mgrid[-size:size+1, -sizey:sizey+1] |
---|
411 | g = np.exp(-(x**2/float(size)+y**2/float(sizey))) |
---|
412 | return g / g.sum() |
---|
413 | |
---|
414 | ## FROM COOKBOOK http://www.scipy.org/Cookbook/SignalSmooth |
---|
415 | def blur_image(im, n, ny=None) : |
---|
416 | from scipy.signal import convolve |
---|
417 | # blurs the image by convolving with a gaussian kernel of typical size n. |
---|
418 | # The optional keyword argument ny allows for a different size in the y direction. |
---|
419 | g = gauss_kern(n, sizey=ny) |
---|
420 | improc = convolve(im, g, mode='same') |
---|
421 | return improc |
---|
422 | |
---|
423 | ## Author: AS |
---|
424 | def getwinddef (nc): |
---|
425 | ## getwinds for predefined types |
---|
426 | typefile = whatkindfile(nc) |
---|
427 | ### |
---|
428 | if typefile is 'mesoapi': [uchar,vchar] = ['Um','Vm'] |
---|
429 | elif typefile is 'gcm': [uchar,vchar] = ['u','v'] |
---|
430 | elif typefile is 'meso': [uchar,vchar] = ['U','V'] |
---|
431 | else: [uchar,vchar] = ['not found','not found'] |
---|
432 | ### |
---|
433 | if typefile in ['meso']: metwind = False ## geometrical (wrt grid) |
---|
434 | else: metwind = True ## meteorological (zon/mer) |
---|
435 | if metwind is False: print "Not using meteorological winds. You trust numerical grid as being (x,y)" |
---|
436 | ### |
---|
437 | return uchar,vchar,metwind |
---|
438 | |
---|
439 | ## Author: AS |
---|
440 | def vectorfield (u, v, x, y, stride=3, scale=15., factor=250., color='black', csmooth=1, key=True): |
---|
441 | ## scale regle la reference du vecteur |
---|
442 | ## factor regle toutes les longueurs (dont la reference). l'AUGMENTER pour raccourcir les vecteurs. |
---|
443 | import matplotlib.pyplot as plt |
---|
444 | import numpy as np |
---|
445 | posx = np.min(x) - np.std(x) / 10. |
---|
446 | posy = np.min(y) - np.std(y) / 10. |
---|
447 | u = smooth(u,csmooth) |
---|
448 | v = smooth(v,csmooth) |
---|
449 | widthvec = 0.003 #0.005 #0.003 |
---|
450 | q = plt.quiver( x[::stride,::stride],\ |
---|
451 | y[::stride,::stride],\ |
---|
452 | u[::stride,::stride],\ |
---|
453 | v[::stride,::stride],\ |
---|
454 | angles='xy',color=color,pivot='middle',\ |
---|
455 | scale=factor,width=widthvec ) |
---|
456 | if color in ['white','yellow']: kcolor='black' |
---|
457 | else: kcolor=color |
---|
458 | if key: p = plt.quiverkey(q,posx,posy,scale,\ |
---|
459 | str(int(scale)),coordinates='data',color=kcolor,labelpos='S',labelsep = 0.03) |
---|
460 | return |
---|
461 | |
---|
462 | ## Author: AS |
---|
463 | def display (name): |
---|
464 | from os import system |
---|
465 | system("display "+name+" > /dev/null 2> /dev/null &") |
---|
466 | return name |
---|
467 | |
---|
468 | ## Author: AS |
---|
469 | def findstep (wlon): |
---|
470 | steplon = int((wlon[1]-wlon[0])/4.) #3 |
---|
471 | step = 120. |
---|
472 | while step > steplon and step > 15. : step = step / 2. |
---|
473 | if step <= 15.: |
---|
474 | while step > steplon and step > 5. : step = step - 5. |
---|
475 | if step <= 5.: |
---|
476 | while step > steplon and step > 1. : step = step - 1. |
---|
477 | if step <= 1.: |
---|
478 | step = 1. |
---|
479 | return step |
---|
480 | |
---|
481 | ## Author: AS |
---|
482 | def define_proj (char,wlon,wlat,back=None,blat=None): |
---|
483 | from mpl_toolkits.basemap import Basemap |
---|
484 | import numpy as np |
---|
485 | import matplotlib as mpl |
---|
486 | from mymath import max |
---|
487 | meanlon = 0.5*(wlon[0]+wlon[1]) |
---|
488 | meanlat = 0.5*(wlat[0]+wlat[1]) |
---|
489 | if blat is None: |
---|
490 | ortholat=meanlat |
---|
491 | if wlat[0] >= 80.: blat = 40. |
---|
492 | elif wlat[1] <= -80.: blat = -40. |
---|
493 | elif wlat[1] >= 0.: blat = wlat[0] |
---|
494 | elif wlat[0] <= 0.: blat = wlat[1] |
---|
495 | else: ortholat=blat |
---|
496 | #print "blat ", blat |
---|
497 | h = 50. ## en km |
---|
498 | radius = 3397200. |
---|
499 | if char == "cyl": m = Basemap(rsphere=radius,projection='cyl',\ |
---|
500 | llcrnrlat=wlat[0],urcrnrlat=wlat[1],llcrnrlon=wlon[0],urcrnrlon=wlon[1]) |
---|
501 | elif char == "moll": m = Basemap(rsphere=radius,projection='moll',lon_0=meanlon) |
---|
502 | elif char == "ortho": m = Basemap(rsphere=radius,projection='ortho',lon_0=meanlon,lat_0=ortholat) |
---|
503 | elif char == "lcc": m = Basemap(rsphere=radius,projection='lcc',lat_1=meanlat,lat_0=meanlat,lon_0=meanlon,\ |
---|
504 | llcrnrlat=wlat[0],urcrnrlat=wlat[1],llcrnrlon=wlon[0],urcrnrlon=wlon[1]) |
---|
505 | elif char == "npstere": m = Basemap(rsphere=radius,projection='npstere', boundinglat=blat, lon_0=0.) |
---|
506 | elif char == "spstere": m = Basemap(rsphere=radius,projection='spstere', boundinglat=blat, lon_0=180.) |
---|
507 | elif char == "nplaea": m = Basemap(rsphere=radius,projection='nplaea', boundinglat=wlat[0], lon_0=meanlon) |
---|
508 | elif char == "laea": m = Basemap(rsphere=radius,projection='laea',lon_0=meanlon,lat_0=meanlat,lat_ts=meanlat,\ |
---|
509 | llcrnrlat=wlat[0],urcrnrlat=wlat[1],llcrnrlon=wlon[0],urcrnrlon=wlon[1]) |
---|
510 | elif char == "nsper": m = Basemap(rsphere=radius,projection='nsper',lon_0=meanlon,lat_0=meanlat,satellite_height=h*1000.) |
---|
511 | elif char == "merc": m = Basemap(rsphere=radius,projection='merc',lat_ts=0.,\ |
---|
512 | llcrnrlat=wlat[0],urcrnrlat=wlat[1],llcrnrlon=wlon[0],urcrnrlon=wlon[1]) |
---|
513 | fontsizemer = int(mpl.rcParams['font.size']*3./4.) |
---|
514 | if char in ["cyl","lcc","merc","nsper","laea"]: step = findstep(wlon) |
---|
515 | else: step = 10. |
---|
516 | steplon = step*2. |
---|
517 | #if back in ["geolocal"]: |
---|
518 | # step = np.min([5.,step]) |
---|
519 | # steplon = step |
---|
520 | m.drawmeridians(np.r_[-180.:180.:steplon], labels=[0,0,0,1], color='grey', fontsize=fontsizemer) |
---|
521 | m.drawparallels(np.r_[-90.:90.:step], labels=[1,0,0,0], color='grey', fontsize=fontsizemer) |
---|
522 | if back: m.warpimage(marsmap(back),scale=0.75) |
---|
523 | #if not back: |
---|
524 | # if not var: back = "mola" ## if no var: draw mola |
---|
525 | # elif typefile in ['mesoapi','meso','geo'] \ |
---|
526 | # and proj not in ['merc','lcc','nsper','laea']: back = "molabw" ## if var but meso: draw molabw |
---|
527 | # else: pass ## else: draw None |
---|
528 | return m |
---|
529 | |
---|
530 | ## Author: AS |
---|
531 | #### test temporaire |
---|
532 | def putpoints (map,plot): |
---|
533 | #### from http://www.scipy.org/Cookbook/Matplotlib/Maps |
---|
534 | # lat/lon coordinates of five cities. |
---|
535 | lats = [18.4] |
---|
536 | lons = [-134.0] |
---|
537 | points=['Olympus Mons'] |
---|
538 | # compute the native map projection coordinates for cities. |
---|
539 | x,y = map(lons,lats) |
---|
540 | # plot filled circles at the locations of the cities. |
---|
541 | map.plot(x,y,'bo') |
---|
542 | # plot the names of those five cities. |
---|
543 | wherept = 0 #1000 #50000 |
---|
544 | for name,xpt,ypt in zip(points,x,y): |
---|
545 | plot.text(xpt+wherept,ypt+wherept,name) |
---|
546 | ## le nom ne s'affiche pas... |
---|
547 | return |
---|
548 | |
---|
549 | ## Author: AS |
---|
550 | def calculate_bounds(field,vmin=None,vmax=None): |
---|
551 | import numpy as np |
---|
552 | from mymath import max,min,mean |
---|
553 | ind = np.where(field < 9e+35) |
---|
554 | fieldcalc = field[ ind ] # la syntaxe compacte ne marche si field est un tuple |
---|
555 | ### |
---|
556 | dev = np.std(fieldcalc)*3.0 |
---|
557 | ### |
---|
558 | if vmin is None: |
---|
559 | zevmin = mean(fieldcalc) - dev |
---|
560 | else: zevmin = vmin |
---|
561 | ### |
---|
562 | if vmax is None: zevmax = mean(fieldcalc) + dev |
---|
563 | else: zevmax = vmax |
---|
564 | if vmin == vmax: |
---|
565 | zevmin = mean(fieldcalc) - dev ### for continuity |
---|
566 | zevmax = mean(fieldcalc) + dev ### for continuity |
---|
567 | ### |
---|
568 | if zevmin < 0. and min(fieldcalc) > 0.: zevmin = 0. |
---|
569 | print "BOUNDS field ", min(fieldcalc), max(fieldcalc) |
---|
570 | print "BOUNDS adopted ", zevmin, zevmax |
---|
571 | return zevmin, zevmax |
---|
572 | |
---|
573 | ## Author: AS |
---|
574 | def bounds(what_I_plot,zevmin,zevmax): |
---|
575 | from mymath import max,min,mean |
---|
576 | ### might be convenient to add the missing value in arguments |
---|
577 | #what_I_plot[ what_I_plot < zevmin ] = zevmin#*(1. + 1.e-7) |
---|
578 | if zevmin < 0: what_I_plot[ what_I_plot < zevmin*(1. - 1.e-7) ] = zevmin*(1. - 1.e-7) |
---|
579 | else: what_I_plot[ what_I_plot < zevmin*(1. + 1.e-7) ] = zevmin*(1. + 1.e-7) |
---|
580 | print "NEW MIN ", min(what_I_plot) |
---|
581 | what_I_plot[ what_I_plot > 9e+35 ] = -9e+35 |
---|
582 | what_I_plot[ what_I_plot > zevmax ] = zevmax |
---|
583 | print "NEW MAX ", max(what_I_plot) |
---|
584 | return what_I_plot |
---|
585 | |
---|
586 | ## Author: AS |
---|
587 | def nolow(what_I_plot): |
---|
588 | from mymath import max,min |
---|
589 | lim = 0.15*0.5*(abs(max(what_I_plot))+abs(min(what_I_plot))) |
---|
590 | print "NO PLOT BELOW VALUE ", lim |
---|
591 | what_I_plot [ abs(what_I_plot) < lim ] = 1.e40 |
---|
592 | return what_I_plot |
---|
593 | |
---|
594 | ## Author: AS |
---|
595 | def zoomset (wlon,wlat,zoom): |
---|
596 | dlon = abs(wlon[1]-wlon[0])/2. |
---|
597 | dlat = abs(wlat[1]-wlat[0])/2. |
---|
598 | [wlon,wlat] = [ [wlon[0]+zoom*dlon/100.,wlon[1]-zoom*dlon/100.],\ |
---|
599 | [wlat[0]+zoom*dlat/100.,wlat[1]-zoom*dlat/100.] ] |
---|
600 | print "ZOOM %",zoom,wlon,wlat |
---|
601 | return wlon,wlat |
---|
602 | |
---|
603 | ## Author: AS |
---|
604 | def fmtvar (whichvar="def"): |
---|
605 | fmtvar = { \ |
---|
606 | "tk": "%.0f",\ |
---|
607 | "T_NADIR_DAY": "%.0f",\ |
---|
608 | "T_NADIR_NIT": "%.0f",\ |
---|
609 | "TEMP_DAY": "%.0f",\ |
---|
610 | "TEMP_NIGHT": "%.0f",\ |
---|
611 | "tpot": "%.0f",\ |
---|
612 | "TSURF": "%.0f",\ |
---|
613 | "def": "%.1e",\ |
---|
614 | "PTOT": "%.0f",\ |
---|
615 | "HGT": "%.1e",\ |
---|
616 | "USTM": "%.2f",\ |
---|
617 | "HFX": "%.0f",\ |
---|
618 | "ICETOT": "%.1e",\ |
---|
619 | "TAU_ICE": "%.2f",\ |
---|
620 | "VMR_ICE": "%.1e",\ |
---|
621 | "MTOT": "%.1f",\ |
---|
622 | "anomaly": "%.1f",\ |
---|
623 | "W": "%.1f",\ |
---|
624 | "WMAX_TH": "%.1f",\ |
---|
625 | "QSURFICE": "%.0f",\ |
---|
626 | "Um": "%.0f",\ |
---|
627 | "ALBBARE": "%.2f",\ |
---|
628 | "TAU": "%.1f",\ |
---|
629 | "CO2": "%.2f",\ |
---|
630 | #### T.N. |
---|
631 | "TEMP": "%.0f",\ |
---|
632 | "VMR_H2OICE": "%.0f",\ |
---|
633 | "VMR_H2OVAP": "%.0f",\ |
---|
634 | "TAUTES": "%.2f",\ |
---|
635 | "TAUTESAP": "%.2f",\ |
---|
636 | |
---|
637 | } |
---|
638 | if whichvar not in fmtvar: |
---|
639 | whichvar = "def" |
---|
640 | return fmtvar[whichvar] |
---|
641 | |
---|
642 | ## Author: AS |
---|
643 | #################################################################################################################### |
---|
644 | ### Colorbars http://www.scipy.org/Cookbook/Matplotlib/Show_colormaps?action=AttachFile&do=get&target=colormaps3.png |
---|
645 | def defcolorb (whichone="def"): |
---|
646 | whichcolorb = { \ |
---|
647 | "def": "spectral",\ |
---|
648 | "HGT": "spectral",\ |
---|
649 | "tk": "gist_heat",\ |
---|
650 | "TSURF": "RdBu_r",\ |
---|
651 | "QH2O": "PuBu",\ |
---|
652 | "USTM": "YlOrRd",\ |
---|
653 | #"T_nadir_nit": "RdBu_r",\ |
---|
654 | #"T_nadir_day": "RdBu_r",\ |
---|
655 | "HFX": "RdYlBu",\ |
---|
656 | "ICETOT": "YlGnBu_r",\ |
---|
657 | #"MTOT": "PuBu",\ |
---|
658 | "CCNQ": "YlOrBr",\ |
---|
659 | "CCNN": "YlOrBr",\ |
---|
660 | "TEMP": "Jet",\ |
---|
661 | "TAU_ICE": "Blues",\ |
---|
662 | "VMR_ICE": "Blues",\ |
---|
663 | "W": "jet",\ |
---|
664 | "WMAX_TH": "spectral",\ |
---|
665 | "anomaly": "RdBu_r",\ |
---|
666 | "QSURFICE": "hot_r",\ |
---|
667 | "ALBBARE": "spectral",\ |
---|
668 | "TAU": "YlOrBr_r",\ |
---|
669 | "CO2": "YlOrBr_r",\ |
---|
670 | #### T.N. |
---|
671 | "MTOT": "Jet",\ |
---|
672 | "H2O_ICE_S": "RdBu",\ |
---|
673 | "VMR_H2OICE": "PuBu",\ |
---|
674 | "VMR_H2OVAP": "PuBu",\ |
---|
675 | } |
---|
676 | #W --> spectral ou jet |
---|
677 | #spectral BrBG RdBu_r |
---|
678 | #print "predefined colorbars" |
---|
679 | if whichone not in whichcolorb: |
---|
680 | whichone = "def" |
---|
681 | return whichcolorb[whichone] |
---|
682 | |
---|
683 | ## Author: AS |
---|
684 | def definecolorvec (whichone="def"): |
---|
685 | whichcolor = { \ |
---|
686 | "def": "black",\ |
---|
687 | "vis": "yellow",\ |
---|
688 | "vishires": "yellow",\ |
---|
689 | "molabw": "yellow",\ |
---|
690 | "mola": "black",\ |
---|
691 | "gist_heat": "white",\ |
---|
692 | "hot": "tk",\ |
---|
693 | "gist_rainbow": "black",\ |
---|
694 | "spectral": "black",\ |
---|
695 | "gray": "red",\ |
---|
696 | "PuBu": "black",\ |
---|
697 | } |
---|
698 | if whichone not in whichcolor: |
---|
699 | whichone = "def" |
---|
700 | return whichcolor[whichone] |
---|
701 | |
---|
702 | ## Author: AS |
---|
703 | def marsmap (whichone="vishires"): |
---|
704 | from os import uname |
---|
705 | mymachine = uname()[1] |
---|
706 | ### not sure about speed-up with this method... looks the same |
---|
707 | if "lmd.jussieu.fr" in mymachine: domain = "/u/aslmd/WWW/maps/" |
---|
708 | else: domain = "http://www.lmd.jussieu.fr/~aslmd/maps/" |
---|
709 | whichlink = { \ |
---|
710 | #"vis": "http://maps.jpl.nasa.gov/pix/mar0kuu2.jpg",\ |
---|
711 | #"vishires": "http://www.lmd.jussieu.fr/~aslmd/maps/MarsMap_2500x1250.jpg",\ |
---|
712 | #"geolocal": "http://dl.dropbox.com/u/11078310/geolocal.jpg",\ |
---|
713 | #"mola": "http://www.lns.cornell.edu/~seb/celestia/mars-mola-2k.jpg",\ |
---|
714 | #"molabw": "http://dl.dropbox.com/u/11078310/MarsElevation_2500x1250.jpg",\ |
---|
715 | "vis": domain+"mar0kuu2.jpg",\ |
---|
716 | "vishires": domain+"MarsMap_2500x1250.jpg",\ |
---|
717 | "geolocal": domain+"geolocal.jpg",\ |
---|
718 | "mola": domain+"mars-mola-2k.jpg",\ |
---|
719 | "molabw": domain+"MarsElevation_2500x1250.jpg",\ |
---|
720 | "clouds": "http://www.johnstonsarchive.net/spaceart/marswcloudmap.jpg",\ |
---|
721 | "jupiter": "http://www.mmedia.is/~bjj/data/jupiter_css/jupiter_css.jpg",\ |
---|
722 | "jupiter_voy": "http://www.mmedia.is/~bjj/data/jupiter/jupiter_vgr2.jpg",\ |
---|
723 | "bw": "http://users.info.unicaen.fr/~karczma/TEACH/InfoGeo/Images/Planets/EarthElevation_2500x1250.jpg",\ |
---|
724 | "contrast": "http://users.info.unicaen.fr/~karczma/TEACH/InfoGeo/Images/Planets/EarthMapAtmos_2500x1250.jpg",\ |
---|
725 | "nice": "http://users.info.unicaen.fr/~karczma/TEACH/InfoGeo/Images/Planets/earthmap1k.jpg",\ |
---|
726 | "blue": "http://eoimages.gsfc.nasa.gov/ve/2430/land_ocean_ice_2048.jpg",\ |
---|
727 | "blueclouds": "http://eoimages.gsfc.nasa.gov/ve/2431/land_ocean_ice_cloud_2048.jpg",\ |
---|
728 | "justclouds": "http://eoimages.gsfc.nasa.gov/ve/2432/cloud_combined_2048.jpg",\ |
---|
729 | } |
---|
730 | ### see http://www.mmedia.is/~bjj/planetary_maps.html |
---|
731 | if whichone not in whichlink: |
---|
732 | print "marsmap: choice not defined... you'll get the default one... " |
---|
733 | whichone = "vishires" |
---|
734 | return whichlink[whichone] |
---|
735 | |
---|
736 | #def earthmap (whichone): |
---|
737 | # if whichone == "contrast": whichlink="http://users.info.unicaen.fr/~karczma/TEACH/InfoGeo/Images/Planets/EarthMapAtmos_2500x1250.jpg" |
---|
738 | # elif whichone == "bw": whichlink="http://users.info.unicaen.fr/~karczma/TEACH/InfoGeo/Images/Planets/EarthElevation_2500x1250.jpg" |
---|
739 | # elif whichone == "nice": whichlink="http://users.info.unicaen.fr/~karczma/TEACH/InfoGeo/Images/Planets/earthmap1k.jpg" |
---|
740 | # return whichlink |
---|
741 | |
---|
742 | ## Author: AS |
---|
743 | def latinterv (area="Whole"): |
---|
744 | list = { \ |
---|
745 | "Europe": [[ 20., 80.],[- 50., 50.]],\ |
---|
746 | "Central_America": [[-10., 40.],[ 230., 300.]],\ |
---|
747 | "Africa": [[-20., 50.],[- 50., 50.]],\ |
---|
748 | "Whole": [[-90., 90.],[-180., 180.]],\ |
---|
749 | "Southern_Hemisphere": [[-90., 60.],[-180., 180.]],\ |
---|
750 | "Northern_Hemisphere": [[-60., 90.],[-180., 180.]],\ |
---|
751 | "Tharsis": [[-30., 60.],[-170.,- 10.]],\ |
---|
752 | "Whole_No_High": [[-60., 60.],[-180., 180.]],\ |
---|
753 | "Chryse": [[-60., 60.],[- 60., 60.]],\ |
---|
754 | "North_Pole": [[ 50., 90.],[-180., 180.]],\ |
---|
755 | "Close_North_Pole": [[ 75., 90.],[-180., 180.]],\ |
---|
756 | "Far_South_Pole": [[-90.,-40.],[-180., 180.]],\ |
---|
757 | "South_Pole": [[-90.,-50.],[-180., 180.]],\ |
---|
758 | "Close_South_Pole": [[-90.,-75.],[-180., 180.]],\ |
---|
759 | } |
---|
760 | if area not in list: area = "Whole" |
---|
761 | [olat,olon] = list[area] |
---|
762 | return olon,olat |
---|
763 | |
---|
764 | ## Author: TN |
---|
765 | def separatenames (name): |
---|
766 | from numpy import concatenate |
---|
767 | # look for comas in the input name to separate different names (files, variables,etc ..) |
---|
768 | if name is None: |
---|
769 | names = None |
---|
770 | else: |
---|
771 | names = [] |
---|
772 | stop = 0 |
---|
773 | currentname = name |
---|
774 | while stop == 0: |
---|
775 | indexvir = currentname.find(',') |
---|
776 | if indexvir == -1: |
---|
777 | stop = 1 |
---|
778 | name1 = currentname |
---|
779 | else: |
---|
780 | name1 = currentname[0:indexvir] |
---|
781 | names = concatenate((names,[name1])) |
---|
782 | currentname = currentname[indexvir+1:len(currentname)] |
---|
783 | return names |
---|
784 | |
---|
785 | ## Author: TN [old] |
---|
786 | def getopmatrix (kind,n): |
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787 | import numpy as np |
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788 | # compute matrix of operations between files |
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789 | # the matrix is 'number of files'-square |
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790 | # 1: difference (row minus column), 2: add |
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791 | # not 0 in diag : just plot |
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792 | if n == 1: |
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793 | opm = np.eye(1) |
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794 | elif kind == 'basic': |
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795 | opm = np.eye(n) |
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796 | elif kind == 'difference1': # show differences with 1st file |
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797 | opm = np.zeros((n,n)) |
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798 | opm[0,:] = 1 |
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799 | opm[0,0] = 0 |
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800 | elif kind == 'difference2': # show differences with 1st file AND show 1st file |
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801 | opm = np.zeros((n,n)) |
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802 | opm[0,:] = 1 |
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803 | else: |
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804 | opm = np.eye(n) |
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805 | return opm |
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806 | |
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807 | ## Author: TN [old] |
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808 | def checkcoherence (nfiles,nlat,nlon,ntime): |
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809 | if (nfiles > 1): |
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810 | if (nlat > 1): |
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811 | errormess("what you asked is not possible !") |
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812 | return 1 |
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813 | |
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814 | ## Author: TN |
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815 | def readslices(saxis): |
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816 | from numpy import empty |
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817 | if saxis == None: |
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818 | zesaxis = None |
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819 | else: |
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820 | zesaxis = empty((len(saxis),2)) |
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821 | for i in range(len(saxis)): |
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822 | a = separatenames(saxis[i]) |
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823 | if len(a) == 1: |
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824 | zesaxis[i,:] = float(a[0]) |
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825 | else: |
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826 | zesaxis[i,0] = float(a[0]) |
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827 | zesaxis[i,1] = float(a[1]) |
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828 | |
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829 | return zesaxis |
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830 | |
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831 | ## Author: TN |
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832 | def getsindex(saxis,index,axis): |
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833 | # input : all the desired slices and the good index |
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834 | # output : all indexes to be taken into account for reducing field |
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835 | import numpy as np |
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836 | if ( np.array(axis).ndim == 2): |
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837 | axis = axis[:,0] |
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838 | if saxis is None: |
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839 | zeindex = None |
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840 | else: |
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841 | aaa = int(np.argmin(abs(saxis[index,0] - axis))) |
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842 | bbb = int(np.argmin(abs(saxis[index,1] - axis))) |
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843 | [imin,imax] = np.sort(np.array([aaa,bbb])) |
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844 | zeindex = np.array(range(imax-imin+1))+imin |
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845 | # because -180 and 180 are the same point in longitude, |
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846 | # we get rid of one for averaging purposes. |
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847 | if axis[imin] == -180 and axis[imax] == 180: |
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848 | zeindex = zeindex[0:len(zeindex)-1] |
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849 | print "INFO: whole longitude averaging asked, so last point is not taken into account." |
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850 | return zeindex |
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851 | |
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852 | ## Author: TN |
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853 | def define_axis(lon,lat,vert,time,indexlon,indexlat,indexvert,indextime,what_I_plot,dim0,vertmode): |
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854 | # Purpose of define_axis is to find x and y axis scales in a smart way |
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855 | # x axis priority: 1/time 2/lon 3/lat 4/vertical |
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856 | # To be improved !!!... |
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857 | from numpy import array,swapaxes |
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858 | x = None |
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859 | y = None |
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860 | count = 0 |
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861 | what_I_plot = array(what_I_plot) |
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862 | shape = what_I_plot.shape |
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863 | if indextime is None: |
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864 | print "AXIS is time" |
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865 | x = time |
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866 | count = count+1 |
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867 | if indexlon is None: |
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868 | print "AXIS is lon" |
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869 | if count == 0: x = lon |
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870 | else: y = lon |
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871 | count = count+1 |
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872 | if indexlat is None: |
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873 | print "AXIS is lat" |
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874 | if count == 0: x = lat |
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875 | else: y = lat |
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876 | count = count+1 |
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877 | if indexvert is None and dim0 is 4: |
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878 | print "AXIS is vert" |
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879 | if vertmode == 0: # vertical axis is as is (GCM grid) |
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880 | if count == 0: x=range(len(vert)) |
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881 | else: y=range(len(vert)) |
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882 | count = count+1 |
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883 | else: # vertical axis is in kms |
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884 | if count == 0: x = vert |
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885 | else: y = vert |
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886 | count = count+1 |
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887 | x = array(x) |
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888 | y = array(y) |
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889 | print "CHECK: what_I_plot.shape", what_I_plot.shape |
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890 | print "CHECK: x.shape, y.shape", x.shape, y.shape |
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891 | if len(shape) == 1: |
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892 | print shape[0] |
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893 | if shape[0] != len(x): |
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894 | print "WARNING HERE !!!" |
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895 | x = y |
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896 | elif len(shape) == 2: |
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897 | print shape[1], len(y), shape[0], len(x) |
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898 | if shape[1] == len(y) and shape[0] == len(x) and shape[0] != shape[1]: |
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899 | what_I_plot = swapaxes(what_I_plot,0,1) |
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900 | print "INFO: swapaxes", what_I_plot.shape, shape |
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901 | #x0 = x |
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902 | #x = y |
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903 | #y = x0 |
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904 | #print "define_axis", x, y |
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905 | return what_I_plot,x,y |
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906 | |
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907 | # Author: TN + AS |
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908 | def determineplot(slon, slat, svert, stime): |
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909 | nlon = 1 # number of longitudinal slices -- 1 is None |
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910 | nlat = 1 |
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911 | nvert = 1 |
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912 | ntime = 1 |
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913 | nslices = 1 |
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914 | if slon is not None: |
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915 | nslices = nslices*len(slon) |
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916 | nlon = len(slon) |
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917 | if slat is not None: |
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918 | nslices = nslices*len(slat) |
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919 | nlat = len(slat) |
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920 | if svert is not None: |
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921 | nslices = nslices*len(svert) |
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922 | nvert = len(svert) |
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923 | if stime is not None: |
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924 | nslices = nslices*len(stime) |
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925 | ntime = len(stime) |
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926 | #else: |
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927 | # nslices = 2 |
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928 | |
---|
929 | mapmode = 0 |
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930 | if slon is None and slat is None: |
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931 | mapmode = 1 # in this case we plot a map, with the given projection |
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932 | |
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933 | return nlon, nlat, nvert, ntime, mapmode, nslices |
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