擦除点 (编辑)

摘要

从输入中删除移除要素之内或之外的点,具体取决于操作类型

插图

Erase Point Illustration

用法

语法

ErasePoint_edit (in_features, remove_features, {operation_type})
参数说明数据类型
in_features

输入点要素。

Feature layer
remove_features

将删除“移除要素”之内或之外的输入要素,具体取决于“操作类型”参数。

Feature Layer
operation_type
(可选)

确定是删除“移除要素”之内还是之外的点。

  • INSIDE将删除“移除要素”内部或边界上的输入点要素。
  • OUTSIDE将删除“移除要素”之外的输入点要素。
String

代码示例

ErasePoint 示例 1(独立脚本)
 # Name: ErasePoint_Example.py # Description: Erase points inside polygon features # Requirements:  # Author: ESRI  import arcpy from arcpy import env env.workspace="C:/data" inFeatures="wells.shp" removeFeatures="land.shp" operationType="INSIDE" try:     arcpy.ErasePoint_edit(inFeatures, removeFeatures, operationType) except Exception, e:     # If an error occurred, print line number and error message     import traceback, sys     tb = sys.exc_info()[2]     print "Line %i" % tb.tb_lineno     print e.message
ErasePoint 示例 2(独立脚本)

以下独立脚本演示了如何使用 ErasePoint 函数。

# Name: ErasePoint_Example2.py # Description: Replacing low resolution elevation points inside  # lake areas by high resolution lidar points. # Author: ESRI   # Import system modules import arcpy from arcpy import env   # Set environment settings env.workspace = "C:/data/Portland.gdb/relief"   # Set local variables inElevationFeatures = "elevation_points" inLidarFeatures = "lidar_points" inLakeFeatures = "lakes"   # Erase elevation points inside lakes arcpy.ErasePoint_edit(inElevationFeatures, inLakeFeatures, "INSIDE")  # Clip lidar points inside lakes arcpy.ErasePoint_edit(inLidarFeatures, inLakeFeatures, "OUTSIDE")    # Append the clipped lidar points to the remaining elevation points arcpy.Append_management(inElevationFeatures, inLidarFeatures, "NO_TEST")    
ErasePoint 示例(Python 交互式窗口)

以下 Python 窗口脚本演示了如何在立即模式下使用 ErasePoint 函数。

import arcpy arcpy.env.workspace = "C:/data" arcpy.ErasePoint_edit("trees.shp", "park_boundaries", "INSIDE") 

环境

相关主题


7/10/2012