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目前应用于国营林场规划设计调查工作的航摄象片转绘仪器有yp—1型辐射线转绘仪、航攝象片辐射线转绘框尺、单向投影仪、3种综合运用这些仪器来完成转绘成图工作,对于提高转绘精度,保证成图质量,提高工作效率是有益处的。一般地说,作为转绘底图的有1:1万原版地形图,在我省各国营林场比较少,更多的是以1:5万原版地形图放大成1:1万地形图作为转绘底图。在国营林场规划设计调查
Currently used in state-owned forest farm planning and design survey of aerial photogrammetry equipment have yp-1 radiation mapping instrument, aerial photographic radiation frame drawn frame, one-way projector, three kinds of comprehensive use of these instruments To complete the transfer mapping work, for improving the accuracy of mapping, mapping quality assurance, improve work efficiency is beneficial. Generally speaking, there are 1: 10000 original topographic maps as the base map of the transfer. There are relatively few forest farms in our province. Mostly the 1: 50,000 original topographic maps are enlarged into 1: 10,000 topographic maps Draw the bottom. In the state-owned forest farm planning and design survey