Latest Contributions by Zheng_KiYip

I have been using a python code to automate some mapping by loading the python script onto the GIS (10.2) python window and pressing Return to get it to start running. It has been working but for some reason the next time I loaded the code into the python window and pressed Return, instead of the code running, it went straight back to a command prompt. I cannot figure what has changed for this code to no longer get executed. Please help! Any suggestions would be very very helpful! import arcpy import numpy as np mxd = arcpy.mapping.MapDocument("Current") lstDataFrames=arcpy.mapping.ListDataFrames(mxd) varLyrs = arcpy.mapping.ListLayers(mxd,'_Wt_norm*') var_list = np.arange(0,16) for ilyr in varLyrs:     var_n = ilyr.name[:2].upper()         for i in var_list:         outpath = r"F://GIS_Data//SOM//Results_12Var4by4//Maps//" + var_n + "_N" + i + "_Norm.jpg"         arcpy.ApplySymbologyFromLayer_management(ilyr, r"F://GIS_Data//Arcpy//SOM_Norm_Default.lyr")         ilyr.symbology.valueField = "N" + str(i)         ilyr.visible = True         arcpy.mapping.ExportToJPEG(mxd, outpath)         print("Node ", i)         ilyr.visible = False ... View more

Hi Everyone, I'm using the expression below to try convert all the values that are negative or equal to zero to NoData SetNull("cov_fdg_ct" <= 0,"cov_fdg_ct") But it failed to execute with the error message below: Executing: RasterCalculator SetNull("cov_fdg_ct" <= 0,"cov_fdg_ct") "E:\GIS Data\Thesis modeling\FloodDepthGrids\cov_fdg_c" Start Time: Fri Jun 12 17:49:33 2015 SetNull("cov_fdg_ct" <= 0,"cov_fdg_ct") ERROR 000539: Error running expression: rcexec() Traceback (most recent call last):   File "<expression>", line 1, in <module>   File "<string>", line 5, in rcexec   File "c:\program files (x86)\arcgis\desktop10.2\arcpy\arcpy\sa\Functions.py", line 320, in SetNull     where_clause)   File "c:\program files (x86)\arcgis\desktop10.2\arcpy\arcpy\sa\Utils.py", line 47, in swapper     result = wrapper(*args, **kwargs)   File "c:\program files (x86)\arcgis\desktop10.2\arcpy\arcpy\sa\Functions.py", line 309, in Wrapper     ["SetNull", in_conditional_raster, in_false_raster_or_constant]) RuntimeError: ERROR 000732: Input Raster: Dataset cov_fdg_ct does not exist or is not supported Failed to execute (RasterCalculator). Failed at Fri Jun 12 17:49:34 2015 (Elapsed Time: 0.16 seconds) I've been reading many posts from those who also got the ERROR 000539 and most of them seem to be due to a syntax error. However, I can't seem to figure out what syntax error is in my simple expression. It would be much appreciated if you can provide some advice! Thank you! ... View more