topic Automatically exporting maps through layer toggle in ArcGIS Pro Questions

Automatically exporting maps through layer toggle

CFrost — Wed, 18 Jan 2023 09:22:09 GMT

Hi, I have a list of layers that I want mapped. the layers are a mix of raster / vector but the map extent is a global and consistent regardless of the layer. The legend attributes are the same as well, just the legend title (name of layer) would need to change.

Is there a way to automatically cycle through the list of layers turning one on at a time, updating legend name, and exporting this as a map? Basically, the same as data driven pages but instead of cycling through various features and changing extents, the extent stays the same but the layers are changing.

Any advise welcome!

Re: Automatically exporting maps through layer toggle

JohannesLindner — Wed, 18 Jan 2023 12:13:30 GMT

You can do that with a little Python. A quick-and-dirty approach:

layout_name = "Layout" locked_layers = ["World_Imagery"] # these layers will not change visibility export_folder = "N:/.../temp" # get the layout, its map frame, and its legend aprx = arcpy.mp.ArcGISProject("current") layout = aprx.listLayouts(layout_name)[0] mapframe = layout.listElements("MAPFRAME_ELEMENT")[0] legend = layout.listElements("LEGEND_ELEMENT")[0] # get the layers layers = [ layer for layer in mapframe.map.listLayers() if layer.name not in locked_layers and layer.supports("visible") and layer.name == layer.longName ] # for each layer for layer in layers: print(f"Exporting layer {layer.name}") # make all layers invisible for other_layer in layers: other_layer.visible = False # make the layer visible layer.visible = True # change the legend title legend.title = layer.name # export the layout layout.exportToPNG(f"{export_folder}/Export_Layer_{layer.name}.png")

Re: Automatically exporting maps through layer toggle

CFrost — Wed, 18 Jan 2023 12:18:12 GMT

HI Johannes, this looks really promising! Would I simply amend the code and run in the arcpro python window? Or outside of pro? Thank you!

Re: Automatically exporting maps through layer toggle

JohannesLindner — Wed, 18 Jan 2023 12:42:14 GMT

Yeah, change lines 1, 2, 3, and 30 (if you want to export to a different format). Copy paste into the Pro Python window, execute.

You should be able to run that as a standalone script outside of Pro. For that, use the project path in line 6 instead of "current". I haven't tested that, though.