摘要
线状地物调查是土地资源调查中的一项重要内容。在分类统计汇总土地面积时,计算、扣除线状地物面积时显得尤为重要。本文在分析线状地物与地类图斑空间关系的基础上,设计了线状地物面积快速扣除算法。利用SuperMap Objects作为开发平台,VC++6.0为开发工具实现了该算法。经验证,该算法能够快速实现线状地物面积扣除,可达到相关建库工作的精度要求。
The investigation of linear features is an important element of the land resources survey .Calculation and subtraction of line-ar features area are particularly important in the classification statistics of the land area .On the basis of analyzing the spatial relation-ship of linear features with Polygons , we design fast area subtraction algorithm of the linear features .Applying SuperMap Objects as a development platform, VC ＋＋6.0 as the development tools, the algorithm is realized.The algorithm can quickly achieve the linear features area subtraction and the requirements of building the database of land use .
出处
《测绘与空间地理信息》
2014年第4期40-42,共3页
Geomatics & Spatial Information Technology
基金
山西农业大学青年基金项目--介休市土地利用变化对土壤碳库的影响与预测研究(201232)资助
关键词
扣除算法
空间关系
缓冲区
线状地物
area subtraction algorithm
spatial relationships
buffer
linear-object
