ArcGIS教程：区域合并 (Spatial Analyst)

1、摘要 记录输出中每个像元所属的连接区域的标识。每个区域都将被分配给唯一编号。插图

3、代码实例 RegionGroup示例1（Python窗口） 此示例使用八囿鹣分胰向连接方法为输入栅格的每个区域分配一个唯一编号。import锾攒揉敫arcpyfromarcpyimportenvfromarcpy.saimport*env.workspace ="C:/sapyexamples/data"outRgnGrp = RegionGroup("land","EIGHT","","",5)outRgnGrp.save("c:/sapyexamples/output/reggrp_ex5") RegionGroup示例2（独立脚本） 此示例使用具有排除的值的八向连接方法为输入栅格的每个区域分配一个唯一编号。# Name: RegionGroup_Ex_02.py# Description: Records, for each cell in the output, the# identity of the connected region to which# it belongs within the Analysis window. A# unique number is assigned to each region.# Requirements: Spatial Analyst Extension# Import system modulesimportarcpyfromarcpyimportenvfromarcpy.saimport*# Set environment settingsenv.workspace ="C:/sapyexamples/data"# Set local variablesinRaster ="land"valToIgnore =5# Check out the ArcGIS Spatial Analyst extension licensearcpy.CheckOutExtension("Spatial")# Execute RegionGroupoutRegionGrp = RegionGroup(inRaster,"EIGHT","CROSS","NO_LINK", valToIgnore)# Save the outputoutRegionGrp.save("C:/sapyexamples/output/reggrpout")环境 像元大小,当前工作空间,掩膜,输出坐标系,范围,临时工作空间,捕捉栅格