【摘要】 文章主要针对某小区的高大建筑物,利用GIS空间分析方法,生成某年冬至这一天12时、13时、14时该小区的建筑物背面高度阴影,查看建筑物质心是否在阴影内,并以此为依据判断建筑物是否满足规范规定的日照标准要求,快速查找出不合规的建筑物。主要过程包括建筑矢量图转栅格图、生成建筑物坡向图、提取背光面轮廓、计算背光面高度、背光面高度数据生成阴影、阴影叠加、阴影栅格转为矢量数据、查询不符合规范建筑物并导出成新图层等。相比传统日照分析方法,此方法计算简单、操作简便。更多还原

【Abstract】 This paper is aimed at finding quickly the tall buildings with the substandard sunlight by the method of GIS spatial analysis,which generates the shadow of back facades of the buildings at 12∶ 00,13∶ 00 and 14∶ 00 on winter solstice day,and checks whether the building center of mass is in the shadow,and judges whether the building meets the sunlight standard requirements specified in the standard. Its process includes that the vector map is transformed into the grid map,drawing the slope direction map of building,extracting the outline of backlight facade,calculating the height of backlight facade,producing the shadow,carrying out shadow superposition,converted the raster data to vector data,and searching for the substandard buildings and importing them into new layers,etc. Compared with the traditional method,the proposed method is simple,fast and efficient.更多还原