GRD, Surfer .GRD

Golden Software Surfer grid format.  Manifold will consume Surfer 6, 7 or ASCII GRD files, automatically recognizing the correct Surfer format. Importing an image from a Surfer GRD file will derive the local offset and local scale parameters used for the surface coordinate system from the file header, but otherwise the coordinate system cannot be determined and will not be assigned.   Manifold can read several different types of .grd formats and will automatically configure for Surfer style .grd when a Surfer GRD is chosen.

 

dlg_import_grd_surfer.png

 

To import from GRD format:

 

  1. Choose File-Import from the main menu.

  2. In the Import dialog browse to the folder containing data of interest.

  3. Double-click the file ending in .grd for the data of interest.

  4. A table and an image will be created.

 

 

eg_import_grd_surfer01_01.png

 

We can double-click on images that are created to view them.

 

eg_import_grd_surfer01_02.png

 

The image appears without using the correct projection.   That is a good reason to avoid using Surfer GRD format whenever possible, to avoid the tedious work of finding out what coordinate system is supposed to be used and then assigning it.   

 

eg_import_grd_surfer01_03.png  eg_import_grd_surfer01_04.png

 

We use the Style pane to color the image using a palette, and to apply hill shading, as seen above.

 

eg_import_grd_surfer01_05.png

 

The display shows terrain elevation in the Mount St. Helens area.

 

See Also

Style

 

Maps

 

Images

 

DEM, GTOPO30

 

GRD, ESRI .ASC, .GRD

 

GRD, Northwood .GRC, .GRD