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The realization and application of draft pen in image-requestlng WebGIS
Author(s):
XU Zhuo-kui
,
HUANG Qiu-ming
,
LIU De-qin
,
LIN Zong-jian
Pages:
167
-
168
Year:
2009
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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