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The realization and application of draft pen in image-requestlng WebGIS
Author(s): 
Pages: 167-168
Year: Issue:  3
Journal: Science of Surveying and Mapping

Keyword:  WebGIS草稿笔可视化表达JVGL;
Abstract: WebGIS目前得到了广泛应用,但仍存在地图可视化表达和空间分析功能有限的缺陷.本文提出在Web-GIS中引入草稿笔工具,试图充当可视化表达和空间分析的辅助工具.文章分析了草稿笔工具在WebGIS中的作用及其实现的总体思路,并重点围绕基于图片请求的WebGIS详细说明了利用JVGL(JavaScript Vector Graphic Librar-Y)函数库和JavaScript编程的实现方法.
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