摘要
以数量、高度、面积、体积4个维度为视角,归纳和总结了图表符号多维尺度表达的理论,给出了图表及图例符号多维尺度表达的数学模型。同时,基于区域轮廓内向偏移,实现了制图单元形心位置的获取,并以CorelDRAW作为实验平台,程序化地实现了定值累加图、柱状图、饼状图及图例的自动构建与配置,对提高统计地图的制作水平和效率具有现实意义。
We analyzed the ratio relationship between chart symbol scale and statistical indicator.On this basis,taking quantity,height,area and volume as an angle of view,we summarized the theory of chart symbols expression of multidimensional scale and gave the mathematical models of expression of multidimensional scale of chart and legend symbols.The center of mapping unit was obtained based on inward offset of regional profile.Taking CorelDRAW as an experimental platform,we realized the automatic generation of cartodiagram,like weight charts,histograms,pie charts and legends.All of this have practical significance in improving the level and efficiency of map making.
出处
《测绘地理信息》
2018年第1期109-114,共6页
Journal of Geomatics
基金
国家科技支撑计划资助项目(2008BAH31B02-3)
关键词
分区统计图表
多维尺度
数学模型
图例
自动构建
cartodiagram
multidimensional scale
mathematical models
legend
automatic construction
