Question

我遇到了ArcGIS中的地图代数功能问题。

我有大约200个TIFF文件，我想将它们的属性值乘以1000.我写的脚本（见下文）似乎没有错误，但是我没有得到任何输出。这是为什么？

# Import system modules  
import arcgisscripting, os, sys

# Create the Geoprocessor object  
gp = arcgisscripting.create()  

# Check out any necessary licenses
gp.CheckOutExtension("spatial")

# Load required toolboxes...
gp.AddToolbox("C:\ArcGIS\Desktop10.0\ArcToolbox\Toolboxes\Spatial Analyst Tools.tbx")

# Set local variables
inDir = "E:\OriginalDatasetRepertory\VegetationCoverDensity\Grid"  
OutRaster = "E:\OriginalDatasetRepertory\VegetationCoverDensity\MapAlgebra"  

gp.outputCoordinateSystem = "Coordinate Systems\Geographic Coordinate Systems\World\WGS 1984.prj"

for TIFF in os.listdir(inDir):  

    # State the statistical expression
    InExpression = tiff_files * 1000
    print InExpression

    # Set the output name
    OutRasterName = TIFF.replace("LCI_","VC_")  
    print OutRasterName

    # Process: Map Algebra
    gp.SingleOutputMapAlgebra_sa(InExpression, OutRasterName, OutRaster)

Answer 1

在你的地图代数函数之后添加print gp.GetMessages（），看看它是否能让你知道发生了什么

没有从脚本输出到Map Algebra ArcGIS

1 个答案: