【摘要】 为了解决地理信息系统中不同使用模式下的地图快速绘制问题,提出了绘图缓冲区技术。对双缓冲区技术、地图缓冲区技术、图层缓冲区技术和组件缓冲区技术分别介绍了各缓冲区技术所针对使用问题和解决问题的方法。对具体缓冲区接口、图层缓冲区控制接口和组件缓冲区控制接口分别描述了在TerraMap地理信息系统中绘图缓冲区技术的实现方式。对TerraMap中绘图缓冲区技术的使用成果进行了总结。更多还原

【Abstract】 To solve the different uses of GIS maps fast rendering mode problem,a graphics buffer technology is presented.First,the double buffer technology,maps the buffer techniques,technologies and components buffer the buffer layer technique is introduced for the use of buffer technologies and solutions to the problem.Then the buffer-specific interface,the buffer layer control interface and components are described in the buffer control interface of geographic information systems in TerraMap graphics buffer technology implementation.Finally TerraMap use of technology in the graphics buffer the results are summarized.更多还原