topic Re: How to modify Text in Sketch Layer in ArcGIS API for Python Questions

How to modify Text in Sketch Layer

KazFukuoka — Wed, 30 Apr 2025 03:43:15 GMT

There is a Web Map that has a Sketch Layer with a Text in it.
How can I modify the Text by using ArcGIS API for Python?

Re: How to modify Text in Sketch Layer

Clubdebambos — Thu, 01 May 2025 09:27:57 GMT

Here's how you can do it...

from arcgis.gis import GIS ## access ArcGIS Online agol = GIS("home") ## the name of the Sketch layer in the layer list sketch_lyr_name = "Sketch" ## get the WebMap as an item object item = agol.content.get("WM_ITEM_ID") ## get the WebMap JSON definition as a dictionary item_data = item.get_data() ## for each layer in the operationalLayers for lyr in item_data["operationalLayers"]: ## when we hit the Sketch layer of interest if lyr["title"] == sketch_lyr_name: ## iterate over the layers in the Sketch layer eg. Polygons, Polylines, Points, Text for sketch_lyr in lyr["featureCollection"]["layers"]: ## we are interested in the Text layer of the Sketch if sketch_lyr["layerDefinition"]["name"] == "Text": ## for each feature in the Text layer of the skatch ## at this point if there is only one text you could use ## indexing instead sketch_lyr["featureSet"]["features"][0] for f in sketch_lyr["featureSet"]["features"]: #print(f["symbol"]["text"]) ## if the current text begins with what we are looking for if f["symbol"]["text"].startswith("UNIQUE START OF TEXT"): # UPDATE CODE HERE ## update the text f["symbol"]["text"] = "UPDATED TEXT" # UPDATE CODE HERE ## update the WebMap Item definition updated_properties = {"text" : item_data} item.update(item_properties=updated_properties)

Update the text in lines 29 and 31.

Please let us know if this works for you.

All the best,

Glen

Re: How to modify Text in Sketch Layer

KazFukuoka — Fri, 02 May 2025 17:54:21 GMT

Thank you for the detailed answer. This is amazing.
I am almost there.

- I fould f["symbol"]["text"] and modified.
- item.update() returned True.
- But the change does not happen online.

Is there any "commit" or "writeback" necessary?

itemWebMap = gis.content.get(IdWebMapContacts) dataWebMap = itemWebMap.get_data() for layerOp in dataWebMap['operationalLayers']: if layerOp['title'] != NameSketch: continue for layerFeature in layerOp['featureCollection']['layers']: if layerFeature['layerDefinition']['name'] != 'Text': continue if len(layerFeature['featureSet']['features']) != 1: ErrorExit('There must be one feature') for feature in layerFeature['featureSet']['features']: feature['symbol']['text'] += '<<UPDATED TEXT>>' dataNew = {'text' : dataWebMap} result = itemWebMap.update(item_properties=dataNew) if not result: ErrorExit('Update failed')

Re: How to modify Text in Sketch Layer

Clubdebambos — Sat, 03 May 2025 10:04:43 GMT

Hi @KazFukuoka,

Do not use <> in your testing text on line 14, it probably thinks this is a tag (html). It does not work with <> but I removed and worked just fine.

Re: How to modify Text in Sketch Layer

KazFukuoka — Sat, 03 May 2025 16:33:15 GMT

Wow, I never thought about it. Everything is working now.
Thanks a lot for the detailed info 😀