Analytical Triangulation
Analytical Triangulation is one of the most important phases of a mapping project. Analytical Triangulation allows us to supplement the ground control by using the geometry of the photography. This permits us to reduce the amount of ground control which would otherwise be required. The accuracy of the map depends on a good Analytical Triangulation solution.
We use a combination of manually measured and automatically measured analytical triangulation. Manual AT is performed using KLT associates analytical triangulation software. Auto AT is computed with the Info MatchAT software.
Digital Photogrammetric Mapping
Don Read Corporation has been producing engineering quality digital maps since 1988. Accuracy and completeness are our focus.
Digital Terrain Modeling
Digital Terrain models utilize data points (mass points) and break lines in order to generate a computer model of the ground. Contours can then be generated from the computer model and incorporated into the final mapping product.
Digital Orthophotos
Orthorectification is the process of removing the effect of camera tilt and relief displacement from the aerial photography. An orthorectified image is scalable like a map and is often used in GIS and other CAD software as a base map. Digital orthophotos can be provided in both B&W and color. The finished product can incorporate engineering design as well as property limits and other data such as survey information. The final product can be both digital or hard copy.