[synthesis problem] 30 km long, 400 meters wide railway line modeling, because the computer memory configuration is limited, need to run AT after the sub model merging, how to ensure seamless stitching and position accuracy transfer? Pre description of project questions: 1. The drone ensures overlap between three shots per vehicle (should the overlap between each vehicle be enough?) 2, computer memory 16g, a 1000 or so photos, just a sortie, about 1.5 kilometers --- 30 kilometers, there is a project that requires 20 block independent, empty three, and the results of the merger Phenomenon: for line + long distance, only POS, without control point, the merged model will be greatly offset after importing GIS, and the whole can not be adjusted. Question: 1, to ensure seamless stitching and delivery of the position is not offset process is? I know the stitching is set at the same origin 2, I know that the guaranteed position is not offset and that the control point constraint is passed. Is the control point uniform control point or is the control point only needed to be spliced? 3, in order to ensure that the location of the transmission is not offset, the control point constraint is the automatic connection point generated by the previous vehicle. When the control is inserted into the next one, is the block control point bound?
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