topic Re: Add chart to layer in map from Script Tool output in ArcGIS Pro Questions

Add chart to layer in map from Script Tool output

NickMiddleton — Wed, 16 Nov 2022 07:21:04 GMT

Hi All,

Can an Arcpy Script Tool add a chart to a layer in a map?

The offending script will add the desired chart when the code is run from the Python Window as below:

import arcpy import os import datetime lyrTemporalSamples = "samples1452temporal" #arcpy.GetParameterAsText(0) inStationName = "Vanesk Station" #arcpy.GetParameterAsText(1) inBoreName = "All Bores" #arcpy.GetParameterAsText(2) aprx = arcpy.mp.ArcGISProject("CURRENT") map = aprx.listMaps("Halo")[0] lyr = map.listLayers(lyrTemporalSamples)[0] arcpy.env.addOutputsToMap = True c = arcpy.Chart('TVCByDistance') c.type = 'line' c.dataSource = lyr c.title = f"{inStationName}: Total Vegetative Cover By Distance from {inBoreName}" c.yAxis.field = 'TVC' c.yAxis.title = "% Total Vegetative Cover" c.xAxis.field = 'distance' c.xAxis.title = "Distance from a bore in metres (-9999 = no bore)" c.line.aggregation = "MEAN" c.line.splitCategory = "date_str" c.addToLayer(lyr) c.updateChart()

But when run it from a script tool with lines 5-7 above modified to the following the tool runs but doesn't add the chart:

lyrTemporalSamples = arcpy.GetParameterAsText(0) inStationName = arcpy.GetParameterAsText(1) inBoreName = arcpy.GetParameterAsText(2)

Any help appreciated,

Nick

Re: Add chart to layer in map from Script Tool output

NickMiddleton — Wed, 16 Nov 2022 08:36:14 GMT

Sorry for the disappointment but a restart of Pro has fixed my problem.

Hope the code might help someone and please reach out if you have questions.

Nick

Re: Add chart to layer in map from Script Tool output

Cristian_Galindo — Wed, 16 Nov 2022 08:38:34 GMT

I have no experience in the creation of "script tool", but in scripts with python and arcpy I do.

I would recommend try to make a old school debug technique:

In the line 8 set

print(lyrTemporalSamples)

at least in that way you will know if the value is passed through the parameters. also validate the

aprx

variable, to know if the current map is taken.

Re: Add chart to layer in map from Script Tool output

ChristopherAllen — Sat, 19 Nov 2022 00:14:55 GMT

Hi @NickMiddleton ,

Thanks for the question! The preferred way of adding charts to an output layer or table in a tool is to set the `charts` property of the output parameter (see the following documentation for more information).

To illustrate, I've created a simple script tool with the following parameters:

And the following tool code creates a new chart and adds it to the derived output layer by setting the `charts` property:

import arcpy # capture the derived output layer parameter output = arcpy.GetParameterInfo()[1] # create the chart chart = arcpy.charts.Bar(x='neighbourhood_group', aggregation='count') # add chart to the output layer by setting the `charts` property on the parameter output.charts = [chart]

I hope this helps, but please feel free to reach out if you have any additional questions.

Take care,

Chris