Bug
The prescribed Python syntax for complex conditional expressions does not work outside of the Raster Calculator.
| Bug-ID-Nummer | BUG-000087994 |
|---|---|
| Eingereicht | June 1, 2015 |
| Zuletzt geändert | June 5, 2024 |
| Gilt für | ArcGIS for Desktop |
| Gefunden in Version | 10.0 |
| Betriebssystem | Windows OS |
| Betriebssystemversion | 7 64 Bit |
| Status | Known Limit |
Zusätzliche Informationen
The expression below won''t work in python, because map algebra take raster object as input, while "Random1.tif" would be treated as string but not raster in the expression ""Random1.tif">0.1". >>> Con(("Random1.tif" > 0.1),"Random1.tif",Con(("Random2.tif">0.1),"Random2.tif",0.1)) In stead, defining a raster object first for this layer, then the complex expression should work. >>> rasob = arcpy.sa.Raster("Random1.tif") >>> outras = Con((rasob > 0.1),"Random1.tif",Con((rasob> 0.1),"Random2.tif",0.1))Workaround
Using the syntax containing the <where_clause> parameter from the following help resources, it is still possible to create complex Conditional expressions. 10.0: http://help.arcgis.com/en/arcgisdesktop/10.0/help/index.html#//009z00000008000000.htm. 10.2: http://resources.arcgis.com/en/help/main/10.2/index.html#//009z00000008000000. 10.3: http://desktop.arcgis.com/en/desktop/latest/tools/spatial-analyst-toolbox/conditional-evaluation-with-con.htm.Schritte zur Reproduzierung
Bug-ID: BUG-000087994
Software:
- ArcGIS for Desktop
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