Development of high-precision control network optimization design software integrating DEM visualization

The accuracy of surveying control networks is the foundation of engineering construction. It is crucial to establish an effective, reliable control network. Starting from the quality indicators of the control network, this article adheres to the principles of 'less but more precise' and 'one point, more use'. For the first time, DEM visualization technology is applied to the design and optimization of the control network, and a complete calculation program is designed. Through case practice, this program has less human intervention and more convenient parameter adjustments, eliminating the need for manual assistance in the calculation, especially in the changes and additions of control points, the addition and deletion of directions and edges are more convenient, the visual interaction is more convenient, and the process is shown at a glance, and the optimization results are more comprehensive in terms of statistics and analyses.