In the previous article, I have shown you how to create or import the elevation grid into Topography in Leapfrog Geo. And now, in this tutorial, I am going to show you how to create topography from a contour file. You may have a contour file in Tab format (Mapinfo) or .str format (Micromine) as well as Shapefile (.shp). The good thing is that Leapfrog can load those types of files and then generate the topography from that file.
Step 1. Import the Contour file
First thing first, prepare your contour file and make sure that the file has the elevation, easting and northing information in the attribute. We will use the elevation column to generate the topography in Leapfrog. Right-click the GIS Data, Maps, and Photos >> Import Vector Data. Select the GIS contour file that has an elevation column in it. Click Open.
If you drag the contour file, it will be shown in the picture above.
Step 2. Create a New Mesh
In the following step, we are going to create a new triangulated mesh from the contour file. To do this, right-click the Meshes>>New Triangulated Mesh>>From GIS Vector Data
Select the GIS contour file and specify the extent of the new mesh. Give a name and then click OK. In a few moments, the new mesh is ready.
At this point, we have successfully created a new mesh from the GIS vector file aka the contour file. Next, we are going to create a new topography from this mesh.
Step 3. Create a New Topography from Mesh
To create a new topography from the mesh, right-click the Topographies>>New Topography>>From Surface. Next, select the surface (mesh) we created earlier and click OK. Give a new name for the topography.
Done. Watch the following video to watch the entire process.