SurGe
Category Plotting (2.5D & contouring)
Publisher  Dressler, Miroslav 
Platform Win95/98, WinNT, Win2000, WinXP
Status Shareware
Description SurGe is a 3D surface generation program that creates an interpolation (approximation) function of two independent variables. The program has the following features: Basic input is an ASCII file containing X, Y and Z coordinates of points irregularly spaced in a region. The surface can be defined not only by points, but also by spatial (three-dimensional) polylines. Fault lines can define a discontinuity in a generated surface. The generated surface can pass through points exactly or can be an approximation. Smoothness of the resulting surface can be controlled by one parameter. Large data sets (with noise) can be effectively filtered. Quality of resulting surface is comparable with surfaces created by Kriging or Minimum curvature method. The program consists of two components: A front end windows program surge.exe (written in C) and a console program surgef.exe (written in FORTRAN). Surge.exe enables: reading data files containing input objects (points, faults, polylines and / or boundaries) and displays them in a graphical window. It transforms (rotates etc) coordinates of input objects. It allows selection of parameters for interpolation / approximation and then runs surgef.exe. An input filter may be defined on the input data points. A raster colour map or 3D view can be displayed of the resulting surface. It computes isolines and displays them. It computes and displays gradient lines. Sections of a grid can be blanked out, outside of a boundary polygon. Some mathematical calculations can be performed with the surfaces. Using the mouse and keyboard points, faults, polylines, boundaries and isolines can be digitised. Cross-sections can be defined through several surfaces. It can read and write grid files compatible with Surfer (in ASCII format). Surgef.exe has the following features: It implements the ABOS method (Approximation Based On Smoothing) which interpolates the z-coordinates of irregularly spaced XYZ points by a continuous function of two independent variables. Up to 100,000 XYZ points can be used for input, but a filter program can pre-process any number of input points. The program creates a matrix of real numbers, which represents the surface at the nodes of a grid. The matrix can have up to 1,000,000 elements.
Cost US Dollars 20
Data formats supported None stated
Supplier in Czech Republic  Dressler, Miroslav 

Geotechnical & Geoenvironmental Software Directory ©  Bedrock  2024