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How to create a Surpac file from a DXF file.

Although a DXF file of lines and polylines may not contain all the textual data of a Surpac file it is sometimes useful to be able to create a Surpac file using the geometry found in a DXF file. This is how to do it using Pointor as a Dxf to Surpac converter.

Open the DXF file using the File | Open DXF file...

Open Dxf File (Get surpac records from DXF file)...

When you have chosen your DXF file you need to select which entities you want to import. For normal point lists you can choose POINTS LINES POLYLINES CIRCLES and or TEXTS. But if you intend to export the geometric data to a surpac file you should choose LINES and POLYLINES, as shown in the dialog below:

Preview of the DXF file to create surpac file

Note that the dialog tells you how many of each type of entity there is. In the above example there are 4228 lines.

Now click on OK and you'll get this final window:

DXF file in main window. Your surpac data

Now you can zoom and pan the data. Then you can save the polylines and lines in the surpac format by clicking on the File | Save Point List... item. (Though strictly speaking the Surpac is not a list of points, rather a list of lines and/or polylines.)

Saving the surpac .str file

Now you'll be presented with a dialog which allows you to choose the format of the file you are going to save.

Choosing the right format for Surpac

Choose Surpac as shown above. I recommend that you leave the "start writing from row" setting to 1, unless you really know what you are doing!

There is a demo of Pointor which you can download and install to test with your own data DXF and surpac files:

Download Pointor point list and DXF converter

If you want to know how to create DXF files from Surpac data then click here.



"I use Pointor a lot to convert the topo breakline data files into 3-D autocad dxf files. It works perfectly every time."

Comes with complete Windows style help, but you can browse the online version here.



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