城市小区地图图形管理系统设计

设计小区地图图形管理系统的主要任务是编写能够建立小区平面图形，并实现与其相关的一些管理功能的软件。该软件的制作机制是建立好组成城市小区的基本图元。使用这些图元建构一个小区平面图形。由于道路与草地的特殊性，使用4点Bezier曲线绘制。从速度上考虑，使用deCastelijau算法来简化Bezier曲线。

Residential Area Map Management System Design

The main task of a residential area map management system is to compile a kind of software which can set up a plan of the residential area and bring about some related functions of management system. The compiling mechanism of the software is the building of the basic figure of a modern urban residential area, and with these basic figures, the plan of residential area can be drawn. Because of the special characteristics of the grasslands and roads, we can use Bezier curves defined by four control points to draw the map. For the speed's sake, we can use deCasteljau algorithm to simply Bezier curves.