Recently, the Geographic Information System (GIS) based on 3-dimensional geoprocessing technology and Internet environment are regarded as one of emerging issues in the GIS fields. This presentation reports on virtual geographic modeling using GeoVRML and adding some interaction functions for geometric and metric analysis. Using java script nodes in standard VRML we introduce interactive operations such as vertical exaggeration, moving secant plane, measuring the distance between two points, showing 3D buffer, etc...
