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How to insert one Surfer region into another?

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    Katie Yoder

    Hi Chuck,

    Thank you for posting your question to our community forum.  Because your two data files have different point distributions, I would not normally recommend combining the files prior to gridding.  Instead, I would recommend using Grids | Resize | Mosaic to combine the grids or creating two contour layers in the same map.  Both of these options are detailed in the article How do I merge two or more GRD or DEM files in Surfer to create a contour map?.

    Please let me know if I can be of further assistance!

    Katie

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    Chuck Nelson

    Mosaic worked correctly...thank you.

    I have a followup question. 

    Is there a procedure to determine the perimeter (length) of a specific contour?

    Surfer easily displays the area of a specific contour but I have been unable to find a perimeter command.

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    Katie Yoder

    Hi Chuck,

    I'm glad you were able to get your desired results using mosaic.  Regarding the contour length and area, these values can be found if the contours are exported to a vector file format such as DXF.  When the DXF is used to create a base map, each contour can be selected and then the length or perimeter of each polyline and polygon is reported in the Info tab of the Properties manager. 

    Thanks!

    Katie

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