Home Products
Contact Us

GWN-SURF is an ideal application for surface modeling and mapping projects.

Use of the unique GIS Quadtree approach ensures GWN-SURF is able of processing an unlimited number of data points with minimal system requirements. Clients have reported using GWN-SURF to complete calculations of over 1,000,000 points in a single file with no delays or "bogging down" of computer. This efficient approach means projects can be finished in shorter time and with high accuracy.

GWN-SURF offers clients a lot of flexibility in contouring and mapping. For example, GWN-DTM can be used to generate concentration maps to analyze chemical concentrations in the ground.

Visualization tools and aids in GWN-DTM are first class. With GWN-DTM users can analyze specific features, evaluate cut and fill and design powerful presentations.

Visualization tools and aids in GWN-SURF are first class. With GWN-SURF users can analyze specific features, evaluate cut and fill and design powerful presentations.

GWN-SURF offers a clear advantage to the demanding user. The many features, which set GWN-SURF apart from competition, include:


Use of unlimited number of points
Feature maintenance
Substitute elevation for another measurement
Terrain model visualization tools
Overlay grid generation
Grid volumetrics
Data storage
Minimal hardware requirements
Multiple CAD platform availability

| SURF Specifications | Downloads | Order Info |

Unlimited number of points

GWN-SURF uses GWN-DTM's unique GIS Quadcell approach that enables the software to process an unlimited number of points in single pass. There is no need to break data into smaller sections, yet the results can be obtained fast in even the biggest projects. GWN-SURF has been proven to handle over 1,000,000 data points efficiently.

Feature maintenance

Feature codes included in survey reports can be imported into GWN-SURF and assigned specific features, either colours or layers. This enables users to turn on and off specific features in order to identify and analyze them.

Substitute elevation for another measurement

GWN-SURF can generate surfaces based on other measurements than elevation, such as chemical concentration. This allows users to create concentration maps that aid in evaluation of, e.g. land fills, buried chemical leakage or toxic spills.

Terrain model visualization

GWN-SURF includes a number of visualization tools, which assist in analyzing data and preparation of presentation. The tools include:

Import contours based on elevation range, where a different attribute (colour, layer) can be assigned to each elevation
Skirt terrain model, which enables visualization of the terrain model as 3D solid.

Overlay grid generation

GWN-SURF can generate overlay grids based on user defined grid intervals and grid rotations. The elevation of the individual grid points is obtained from the terrain model and can be written to the file using one of three options: use ttm elevation, use ttm elevation + value or use ttm elevation - value. This option can be used to create an overlay grid offset from the terrain model.

GWN-SURF offers a number of methods for overlay grid output: grid point, east-west lines, north-south lines or user defined polygons.

Grid Volumetrics

GWN-SURF's grid method of computing volumes enables the software to create grid nodes, which can then be imported with different options: grid point; original, proposed and design elevations; cut/fill or no cut/fill volume. Users have full control of assigning attributes (colour/layer) to the grid nodes for easier visualization of different areas.

Data storage

GWN-SURF stores data in project files, which makes it easier to locate and use the files. GWN-SURF files can be easily shared between personnel over a network setting or can be passed on to staff or clients. /font>

Memory requirements

GWN-SURF requires minimal amount of memory. This gives the product its robust character allowing it to process any project no matter how big.

Multiple CAD

GWN-SURF is available on both AutoCAD and MicroStation CAD platforms. The powerful integrated features of GWN-DTM are equally shared between these two systems.

Copyright 2003 GWN Technologies International (A Division of Ecosoft System Inc.)