[gdal-dev] Convert grid to polygon shapefile

[Paul Meems]

Hello List,
I'm working on a C# application that uses Golden Software Surfer to create
maps, but I also need to export the data to a polygon shapefile.
Unfortunately, Surfer creates a shapefile with shapes on top of each other
instead of inside each other, and Golden Software support couldn't help
with this issue.

I have a grid-file in Surfer Bin Grid format that can be converted to other
raster formats, a border shapefile created using ST_Convexhull, and a text
file indicating the values of the polygons.

[image: image.png]

Can anyone recommend a way to use GDAL/OGR to make a polygon shapefile from
these resources, or suggest an alternative approach?

Regards,

Paul
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