Bogue
The prescribed Python syntax for complex conditional expressions does not work outside of the Raster Calculator.
| Numéro d’ID de bogue | BUG-000087994 |
|---|---|
| Envoi | June 1, 2015 |
| Dernière modification | June 5, 2024 |
| S’applique à | ArcGIS for Desktop |
| Version trouvée | 10.0 |
| Système d’exploitation | Windows OS |
| Version du système d’exploitation | 7 64 Bit |
| Statut | Known Limit |
Informations supplémentaires
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))Solution de contournement
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.Étapes pour reproduire
ID de bogue: BUG-000087994
Logiciel:
- ArcGIS for Desktop
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