SurGe 6.50

SurGe is a computer program which enables to generate a surface as an interpolation (approximation) function of two independent variables.

The program has the following basic features:
* Implements the interpolation / approximation method ABOS.
* Basic input is a simple ASCII file containing X, Y and Z coordinates of points irregularly spaced in some region.
* The surface can be defined not only by points, but also by spatial (three-dimensional) polylines.
* So called fault lines can define discontinuity in the generated surface.
* The generated surface can pass through points exactly or can be approximative.
* Smoothness of resulting surface can be controlled by one parameter.
* Large data sets (with noise) can be effectively filtered.
* Quality of resulting surface is comparable with a surface created by the Kriging or Minimum curvature method.
* Command line utilities support import of DEM, GRASS, ArcGIS and Shapefile data formats.

New Features:
- new 3D OpenGL surface viewer SurView was created as a stand alone utility, suitable namely for displaying of the large broken grids. Main features are:
- display of shadowed surface with optional change of light height position and light intensity
- move, zoom, rotation and z-scaling using shortcut keys or by mouse dragging
- parallel (orthogonal) or perspective projection
- switch between color + shadow / only shadow / only color display modes
- switch between wireframe and filled surface