在森林资源调查、规划、设计等方面,都要根据平面图或地形图计算面积,精度的高低,直接影响到林业规划设计。 在实际工作中,被求面积的对象往往是一些不规则(即属多边形)的样地(或小班),常用的方法有:网点板求积、求积仪求积等,其实,唯解析法求积最精确,但不被人们所常用,其主要原因是计算工作繁 In forest resources survey, planning, design, etc., must be based on plan or topographic map area, the level of accuracy, a direct impact on the planning and design of forestry. In practice, the sought after area is often irregular (ie, polygons) plots (or small classes), commonly used methods are: dot plot product, plot product, etc., in fact, the only analytic method The most accurate product, but not commonly used by people, the main reason is the calculation of complex work