How to save a document color scheme with a MemoryStream in Spotfire® using IronPython scripting

Introduction

This example demonstrates how a document color scheme can be saved and applied in the dxp using a MemoryStream

Code Sample

# Copyright © 2017. TIBCO Software Inc. Licensed under TIBCO BSD-style license.

from Spotfire.Dxp.Application.Visuals import *
from System.IO import MemoryStream, FileStream, FileMode as fm, SeekOrigin as so, FileAccess as fa

#Save the current coloring scheme in a memorystream
s = MemoryStream()
for vis in Application.Document.Pages[0].Visuals:
 if vis.Title == "Chart 1":
   myColor = vis.As[BarChart]().ColorAxis.Coloring
   myColor.SaveAs(s)

#Optional - Save the document color scheme to a file if required
p=System.IO.Path.GetTempPath() + "mydxp.dxpcolor";
fileStream = FileStream(p, fm.Create, fa.Write)
s.Seek(0, so.Begin)
s.WriteTo(fileStream)
fileStream.Close()

#Saving the coloring scheme using the memorystream
new=Document.ColoringTemplates.AddFromStream(s)
s.Close()	

#Apply the newly created coloring scheme to the required visualization ,vis2 is a visualization parameter
vis2 = viz.As[BarChart]() 
vis2.ColorAxis.Coloring.Apply(new)

print "color scheme applied"

References

• API Reference:ColoringTemplate
• API Reference:MemoryStream

License:    TIBCO BSD-Style License