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Creating a crossplot

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    Justine Carstairs

    Hello Simon, 

    Yes, you can do this easily in Surfer 14:

    1. Save one of your grid files as a DAT file.
    2. Click Grids | Calculate | Point Sample. The Point Sample dialog opens.
    3. In the Input Grid field, select your second grid file.
    4. In the XY Data field, select your saved DAT file.
    5. In the Data Columns field, select columns A and B for your X and Y coordinates.
    6. Set the Store Z values in column field to D.
    7. Click OK.

    This will give the value files for the two grids in the C and D columns of the DAT file.

    Best wishes,
    Justine Carstairs

    Technical Support
    P 303.279.1021 

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    Simon Crombie

    Thanks, Justine. That's a great suggestion. I've successfully made the crossplot I wanted, and colour coded the plotted points.

    I have a question about the Legend option in Surfer 14 with a coloured Post Map, using the Numeric via colormap option: I set the limits for the colours to be different from the data limits in the file, but when I produced a Legend for the colours the Legend always uses the data limits from the file, and I can't find a way to change it. Is there a way to match the Legend limits to the Post Map limits?

     

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    Justine Carstairs

    Hello Simon,

    Great!

    You are correct that there is no way to edit the legend text of a post map. I will add a vote on your behalf for this functionality to our feature request system. In the meantime, you can achieve the same effect by drawing a white polygon over the text and typing correct values over the top.

    Best wishes,
    Justine Carstairs

    Technical Support
    P 303.279.1021 

     

     

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