Blog : 3D
A set of objects imported by applying its coordinate Z=0 leads to a “flat” map which allows us often to perform operations that are more “uncomfortable” when using 3D maps: 2D references, measurements of distances in the plane, etc.... more
When reading Shapefiles (SHP) which include terrain Contour lines, it is very common to find that the Z coordinate of each Contour is set as being a numerical data in a Field of the associated data table... more
Some 2D Shapefiles (SHP) may include 3D information inside its associated alphanumeric data table. For example, it is quite common to find the values of the elevation and height of the polygon features inside some fields of the data table... more
The KML or KMZ files of Google Earth can include some little-known parameters which apply to the Features they contain. One of these parameters is the Altitude of the Features... more