Question

我正在寻找一段代码，帮助我将我的道路中心线功能转换为缓冲区。

roads = "c:/base/data.gdb/roadcentreline"
roadsoutput = "c:/base/data.gdb/roadcentreline_Buffer"

现在，我想将其转换为缓冲区并将其存储在 roadsoutput 中。

0

Answer 1

UPD：“缓冲区”工具最适合一条道路或一组道路。但是对于网络，您最好使用 Network Analyst 工具箱中的一些特定工具

要完成 previuos 答案：

你的工作流程应该是这样的：

在 arcMap 中打开“搜索”面板

类型“缓冲区”

探索答案，找到合适的工具并打开它。在您的情况下，它是“Analysys”工具箱中的“Buffer”

探索参数

打开“显示帮助”-& gt;“工具帮助”

向下滚动

在那里找到这个代码示例（还有一个非常有用的参数表）：

import arcpy
arcpy.env.workspace = "C:/data"
arcpy.Buffer_ysis("roads", "C:/output/majorrdsBuffered", "100 Feet", "FULL", "ROUND", "LIST", "Distance")

# Name: Buffer.py
# Description: Find areas of suitable vegetation which exclude areas heavily impacted by major roads
# import system modules 
import arcpy
from arcpy import env
# Set environment settings
env.workspace = "C:/data/Habitat_Analysis.gdb"
# Select suitable vegetation patches from all vegetation
veg = "vegtype"
suitableVeg = "C:/output/Output.gdb/suitable_vegetation"
whereClause = "HABITAT = 1" 
arcpy.Select_ysis(veg, suitableVeg, whereClause)
# Buffer areas of impact around major roads
roads = "majorrds"
roadsBuffer = "C:/output/Output.gdb/buffer_output"
distanceField = "Distance"
sideType = "FULL"
endType = "ROUND"
dissolveType = "LIST"
dissolveField = "Distance"
arcpy.Buffer_ysis(roads, roadsBuffer, distanceField, sideType, endType, dissolveType, dissolveField)
# Erase areas of impact around major roads from the suitable vegetation patches
eraseOutput = "C:/output/Output.gdb/suitable_vegetation_minus_roads"
xyTol = "1 Meters"
arcpy.Erase_ysis(suitableVeg, roadsBuffer, eraseOutput, xyTol)

Answer 2

一种方法，我在互联网上找到的是，我们可以使用上面设置的变量运行缓冲区，并将剩余的参数传递为字符串。

以下是将任何折线转换为缓冲区的建议代码。有关更多详细信息，请查看 Esri Documentation。

import arcpy
roads = "c:/base/data.gdb/roadcentreline"
roadsoutput = "c:/base/data.gdb/roadcentreline_Buffer"
arcpy.Buffer_ysis(roads, output, "distance", "FULL", "ROUND", "NONE")

但我仍然怀疑，有没有更好的方法来做到这一点？