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When multiple map layers are overlaid, the map limits are automatically adjusted to show the full extents of the combined maps.  As a result, the limits and scale often need to be adjusted.  The script below shows how to create 3 maps, overlay them, set the new limits and adjust the map scale.

 

To run this script:

  1. Copy the script below, or download the attached BAS file: OverlayMaps.bas.
  2. In a Windows Explorer window, navigate to C:\Program Files\Golden Software\Surfer.
  3. Double click on Scripter.exe to launch Scripter.
  4. Press Ctrl+A to select all of the existing lines then press Delete.
  5. Press Ctrl+V to paste it into Scripter. 
  6. Click Script | Run to run the script.
     

*********

Sub Main
    Dim SurferApp, Plot, ContourMapFrame, ContourMap, _ 
        ClassedPostMapFrame, ClassedPostMap, BaseMapFrame, BaseMap, _ 
        Shapes As Object 
    Set SurferApp = CreateObject ("Surfer.Application") 
    SurferApp.Visible = True 
    Set Plot = SurferApp.Documents.Add(srfDocPlot) 
    Set MapFrame1 = Plot.Shapes.AddContourMap (SurferApp.Path+"/samples/demogrid.grd") 
    Set MapFrame2 = Plot.Shapes.AddBaseMap (SurferApp.Path+"/samples/demoslice.bln") 
    Set MapFrame3 = Plot.Shapes.AddImageMap(SurferApp.Path+"/samples/demogrid.grd") 
    MapFrame1.Selected = True 
    MapFrame2.Selected = True 
    MapFrame3.Selected = True 
    Set NewMapFrame = Plot.Selection.OverlayMaps
    NewMapFrame.SetLimits(4,7,3,6)
    NewMapFrame.xMapPerPU=0.5 
    NewMapFrame.yMapPerPU=0.5 
End Sub

 

See also the attached script OverlayMaps.bas, which can also be found in the \Samples\Scripts\ folder in the Surfer installation directory.

 

Updated November 2021

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Comments

2 comments

Date Votes
  • Kien Pham
    Kien Pham

    What do the number 4,7,3,6 mean when you set the limit? I saw there are three map frame objects but four numbers?

    0
  • Leslie McWhirter
    Leslie McWhirter
    • Edited

    Hello Kien,

    The four parameters in SetLimits are xMin (4), xMax (7), yMin (3), and yMax (6). These settings are for a single map object (the one with the overlain map layers). You can learn about this command in the Help.

    Thanks,

    Leslie

    0

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