arcpy modify graph legend default text

IanMCDONALD — Sat, 11 Dec 2021 06:16:06 GMT

I am building a multiple series vertical bar graph with arcpy.Graph in ArcMap 10.6.1. The short version is:

import arcpy
TESTDIR = <some dir>
arcpy.env.workspace = TESTDIR
arcpy.env.scratchWorkspace = TESTDIR
arcpy.env.overwriteOutput = True
arcpy.env.qualifiedFieldNames = False
outGraphName = "VerticalBarGraph"
outGraphJpeg = "VerticalBarGraph.jpg"
inputTemplate = "SeriesComparison1.grf"
graph = arcpy.Graph()
inFieldNames = [f.name for f in arcpy.ListFields("OUT.dbf") if f.name != 'OID']
for i in range(1, len(inFieldNames)):
    graph.addSeriesBarVertical("OUT.dbf", inFieldNames[i], "LABEL")
arcpy.MakeGraph_management(inputTemplate, graph, outGraphName)
arcpy.SaveGraph_management(outGraphName, outGraphJpeg, "MAINTAIN_ASPECT_RATIO", 1000)‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍

The output is just what I am after except that for three input fields it produces a legend with entries:

Vertical Bar

Vertical Bar 2

Vertical Bar 3

These can be changed interactively in ArcMap (see below) and I have done this to generate the template graph. I want to use Python to change these defaults, depending on user input, to the names of the input fields but I have had no success. I have been reduced to trying to reverse engineer what's going on in the interactive view:

by adding a couple of lines to the for loop above:

for i in range(1, len(inFieldNames)):
    graph.addSeriesBarVertical("OUT.dbf", inFieldNames[i], "LABEL")
    graph.graphSeries[i - 1].Custom = True
    graph.graphSeries[i - 1].Text = inFieldNames[i]‍‍‍‍

These instructions are accepted and I can print out their values but they have no effect on the graph output.

Is what I am trying to do possible with arcpy? Perhaps I am looking in the wrong place. I would be grateful for any advice.

Ian

Re: arcpy modify graph legend default text

IanMCDONALD — Sun, 31 Mar 2019 04:06:51 GMT

As near as I can establish, it can't be done. I have used matplotlib ( https://matplotlib.org/ ) instead.

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arcpy modify graph legend default text

Re: arcpy modify graph legend default text