DISurf Contouring System
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Automatically Digitize Images

You can automatically digitize any graphic images in the DISurf program. It works by digitizing your image relative to color or hue changes within the image.
  1. On the File menu click Open. Locate the folder that contains the bmp, png, gif or jpg file you want load and double-click it.
  2. On the Objects menu, click Digitize...
  3. Set your options and click the Digitize button. The program will prompt you to choose the number of contour levels you want.
  4. DISurf filters and smoothes the image and generates and displays contours (isolines) of the mapped image. The contours are saved as contours and can be copied to the Drawings group in the Map Tree and then saved as polylines to an ASCII, GEN or DXF file. To copy all contours, right-click the Map Tree item Contours and then click Copy to Drawings. To copy a one contour, right-click the contour name and repeat the process above.

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