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| How do I change the map coordinates in a DXF file within Surfer? |
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There is not a direct way to change the coordinates of a DXF file (please email surfersupport@goldensoftware.com to add your vote to this request), but there is a workaround.
Use the page coordinates of two calibration points with known
map coordinates on your map to create a new DXF with the changed
coordinates.
- Choose the File | Import menu to load the DXF file and
display it without axes.
- Zoom in on the first known point and write down
the XY page coordinates from the status bar at the bottom of the plot
window.
- Zoom out, scroll to the next point and write down the page
coordinates for the second known point.
- Choose File | Export, give the file a new name, choose to export it as an AutoCAD DXF file, and click Save.
- In the Export Options dialog, on the Scaling page, enter
the two sets of page coordinates
in the Page Rectangle boxes.
- Enter the
corresponding map coordinates under the File Rectangle boxes.
- Although the dialogue box prompts for the Lower Left and Upper
Right points, you may enter any two map points.
- Set the Scaling
Source to Application.
- On the DXF Options page, set the File Format to Text (ASCII) and uncheck
all the check boxes in the lower left corner.
- Click OK to create the
new DXF file.
- To load the file into Surfer with map coordinates, use the
Map | New | Base Map command.
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