Resolve fill color object errors in Surfer automation

If you have a Surfer script that defines an object fill color that is not applied, there are a few possible causes and solutions for this behavior.

Reason 1: A Fill Pattern is Necessary

Besides setting the ForeColorRGBA property, it may also be necessary to set the object's fill pattern, such as:

Polygon.Fill.Pattern = "Diagonal Cross"
Polygon.Fill.Opacity= 75
Polygon.Fill.ForeColorRGBA.Color = srfColorOrange


Reason 2: Fill the Contours

If you are setting the fill color of a contour map, be sure to set FillContours to True before setting the fill colors:

ContourLayer.FillContours = True


Reason 3: Apply the Fill to the Contours

After changing the colormap for a contour layer (e.g. loading a CLR file or specifying a preset), you need to apply the fill changes.

ContourLayer.ApplyFillToLevels(FirstIndex:=1, NumberToSet:=1, NumberToSkip:=0)


If the above solutions do not help, please email a small sample script that can be run in Scripter that shows the problem, and a description of what you are trying to do, to


Updated November 2021

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