使用arcpy将listlayers转换为列表。（arcproPython3）

Question

如何将lyr变量转换为列表？变量类型列为类“arcpy”_mp.层'. 我应该把它转换成字符串然后插入列表吗？你知道吗

import arcpy
aprx = arcpy.mp.ArcGISProject("./test.aprx")
for m in aprx.listMaps():
    for lyr in m.listLayers():
        print (lyr)

output
layer1
layer2
layer3

desired output
['layer1', 'layer2', 'layer3']

例：2

for m in aprx.listMaps():
    for lyr in m.listLayers():
        layer = [str(lyr)]
        print (layer)
output
['layer1']
['layer2']
['layer3']

这似乎也没有列入清单

Answer 1

m.listLayers()已返回类型为^{}的层对象列表。你只需要建立一个图层名列表。你可以这样做：

import arcpy
aprx = arcpy.mp.ArcGISProject("./test.aprx")

map_layers = []  # list of lists where each sublist contains layer names for each map in project

for m in aprx.listMaps():
    lyr_names = []  # initialize an empty list and append layer names to it in every iteration
    for lyr in m.listLayers():
       lyr_names.append(lyr.name)
    map_layers.append(lyr_names)

print(map_layers)

因此，如果您的项目有2个映射，其中每个映射有3个层，则上面的代码段将打印如下结果：

[['Map 1 Layer 1 Name', 'Map 1 Layer 2 Name', 'Map 1 Layer 3 Name'],
 ['Map 2 Layer 1 Name', 'Map 2 Layer 2 Name', 'Map 2 Layer 3 Name']]