python - Arcpad、arcpy、检出/收入数据并限制为选定的功能

Question

我正在开发一个 python 工具箱，以自动执行将数据检出和返回到文件地理数据库所需的步骤。我的问题是，在使用 python 命令行和 ArcPad 数据管理工具而不是 ArcPad 数据管理器时，将检出的功能限制为仅选择的功能的最佳方法是什么？ArcPad 数据管理器中的“仅获取选定的要素”复选框使其变得容易。这很重要，因为我想限制使用区域并减小文件大小，因为要素类之一是大型地块地图。

Answer 1

I do know one way to get selected items by using arcpy only.

    #get an map object
    mxd = arcpy.mapping.MapDocument("CURRENT")
    #get an dataframe object, here the first one is taken
    df = arcpy.mapping.ListDataFrames(mxd)[0]
    #get a layer object
    lyr = arcpy.mapping.ListLayers(mxd,"NameOfRequiredLayer",df)
    #now get the FIDs of the selected Elements of your layer
    selection = arcpy.Describe(lyr).FIDSet

"selection" then contains the FIDs of selected elements. With that you can carry one with whatever you have to do. For instance you can then set a layers definition query:

    #shapes use FID, feature classes use OBJECTID, so you better check
    IDname = "\"OBJECTID\""
    if lyr.dataSource.endswith("shp"):
        IDname = "\"FID\""
    querystring = IDname + " = " + str(selection[0])
    for count in range(1,len(selection)):
        querystring = querystring + " OR " + IDname + " = " + str(selection[count])   
    if lyr.supports("DEFINITIONQUERY"):
        lyr.definitionQuery = querystring