计算默认空间格网索引 (Data Management)
用法
语法
CalculateDefaultGridIndex_management (in_features)
参数 | 说明 | 数据类型 |
in_features |
要计算有效空间格网索引的要素。 | Feature Layer; Raster Catalog Layer |
代码实例
计算默认格网索引示例(Python 窗口)
以下 Python 窗口脚本演示了如何在即时模式下使用 CalculateDefaultGridIndex 功能。
import arcpy
from arcpy import env
env.workspace = "C:/data"
arcpy.CalculateDefaultGridIndex_management("rivers.shp")
计算默认格网索引示例 2(独立脚本)
以下独立脚本将在工作流中使用 CalculateDefaultGridIndex 功能更新 FC 的空间索引。
# Name: UpdateSI_Example.py
# Description: Use Calculate Default Grid Index to update the spatial index of a FC
# Author: ESRI
# Import system modules
import arcpy
from arcpy import env
# Set the workspace
env.workspace = "C:/data/data.gdb"
# Set local parameters
inFeatures = "river"
try:
# Get the grid sizes from the tool, this is a string with 3 semi-colon seperated values (typically something like "1500; 0; 0")
result = arcpy.CalculateDefaultGridIndex_management(inFeatures)
indexGrids = []
for count in range(0, result.outputCount):
indexGrids.append(result.getOutput(count))
# First remove the existing grid index
try:
arcpy.RemoveSpatialIndex_management(inFeatures)
except:
# if no index exists, RemoveSpaitalIndex will fail, but just keep going
pass
# Now add the indexes calculated by the tool
arcpy.AddSpatialIndex_management(inFeatures, indexGrids)
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.args[0]
环境
此工具不使用任何地理处理环境
相关主题
许可信息
ArcGIS for Desktop Basic:是
ArcGIS for Desktop Standard:是
ArcGIS for Desktop Advanced:是
9/15/2013