| 基于Visual C++的MapObjects功能扩展的探讨 |
| |
| 引用本文： | 谭伟,冯仲科,张雁.基于Visual C++的MapObjects功能扩展的探讨[J].测绘科学,2005,30(6):103-104. |
| |
| 作者姓名： | 谭伟 冯仲科 张雁 |
| |
| 作者单位： | 贵州大学林学院,贵州,贵阳,550025;北京林业大学资源与环境学院,北京,海淀,100083;北京林业大学资源与环境学院,北京,海淀,100083 |
| |
| 基金项目： | 贵州省农业科技攻关项目
,
北京市自然科学基金 |
| |
| 摘 要： | 本文从组件的内部结构、MapObjects基本功能的组合、MO与其它组件的结合展开讨论,提出了Visual C++6.0编程环境下的MO功能扩展的三种方式,并对其基本原理和具体程序进行了介绍,包括图层渲染类型识别、图层搜索、MO空间数据集合管理与组织,从而为更好地使用MO组件提供一种思路。
|
| 关 键 词： | MO 数据组织 拓扑搜索 渲染类型识别 功能扩展 |
| 文章编号： | 1009-2307（2004）06-0103-02 |
| 收稿时间： | 2004-12-23 |
| 修稿时间： | 2004年12月23日 |
Discussions about Extension of Map objects Based on the Visual C++. |
| |
| Tan Wei,Feng Zhong-ke,ZHANG Yan.Discussions about Extension of Map objects Based on the Visual C++.[J].Science of Surveying and Mapping,2005,30(6):103-104. |
| |
| Authors: | Tan Wei Feng Zhong-ke ZHANG Yan |
| |
| Abstract: | From theories of the COM programming, the fundamental functions of Map objects,and the combinations of MO and other COMs, this paper discussed some extensions of MO development. As a result, a new method was put forward on the recognition about the renderers of layer in map datasets. From that, a new frame of organizations and management about spatial data was provided so that current setting of the map layer could be saved. In additional, the article offered an approach for searching objects according to topological relation with multiobjects such as points, lines, rectangles, polygons and so on. |
| |
| Keywords: | mapojects frame of organizations and management recognition of renderer searching approach extensions for function |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
|
