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How to create Digital Terrain Model from google earth image via civil3D or other program with high accuracy
Mid career level
what is the most difficult part of surveying
Total Station Optical instrument used in modern survey and archaeology. It is a combination of electronic theodolite, an EDM and software running on an external computer ... Voir Plus
Both of Total Station and GPS have advantages and disadvantages; Although using GPS save efforts and time more than Total station with high accuracy but we can't use ... Voir Plus