largeerase.py

esri公司产品,本代码的主要功能是实现大量数据的叠加问题!

"""********************************************************************************************************************
LargeErase.py

Description: 

Requirements: 

Python and the Python for Windows extention (win32 Extension) to be installed.

Author: ESRI, Redlands

Date: 07/14/2004

Usage: <input_featureclass> <erase_featureclass> <output_featureclass> <cluster_tolerance>
*********************************************************************************************************************"""

try:
    #Import system modules and PartionedOverlayer.py (contains functions to partion data and overlay)
    import PartitionedOverlay, sys

    #Describe input featureclass to determine the shape type for the output
    dsc = PartitionedOverlay.gp.describe(sys.argv[1])
    PartitionedOverlay.shape_type = dsc.shapetype.upper()

    #Create the parameter list
    param_list = [sys.argv[1],sys.argv[2], sys.argv[3], sys.argv[4]]

    PartitionedOverlay.ScratchWorkspaceExists("erase_analysis", param_list)

    #Set the cluster tolerance in the Partition Overlay script for later use
    PartitionedOverlay.SetClustTol("erase_analysis", sys.argv[1] + ";" + sys.argv[2], sys.argv[4])

    #Run LargeErase passing in the tool name and parameter list
    PartitionedOverlay.RunLargeOverlay("erase_analysis", param_list)

    del dsc

except Exception, ErStr:
    PartitionedOverlay.gp.AddError(str(ErStr))

except:
    PartitionedOverlay.gp.AddError("Failure in LargeErase\n" + str(PartitionedOverlay.gp.getmessages(2)))