求翻译：本人完成了该平台的全部设计与实现工作。图形的绘制算法主要包括：（1）正三角形：先确定两点得到三角形的一个边a，然后根据鼠标位置与该边的位置关系，在边a的中线上得到另一个顶点；（2）矩形：包括水平、垂直与其他任意方向的矩形；（3）椭圆：用极坐标方程确定椭圆上的所有点；（4）圆角矩形：四个角为圆弧的矩形，圆角矩形的两种极端情况是矩形和椭圆。是什么意思？

I completed all of the platform design and implementation work. Graphics rendering algorithms include: (1) triangle: the first two points determine a triangle of sides a, then the mouse position and the position of the edge between the edge of a vertex of the line to get another; (2) rectangular inc

I have now completed the platform design and the realization of all work. Graphical mapping algorithm mainly include: ( 1) 3 is angular two points: first determine the angular 3 A side, and then in accordance with a mouse location and the side of a position, the centerline on the side is another ver

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I completed all the design and implementation of the platform work. Graphics of draws algorithm main include: (1) was triangle: first determines two points are triangle of a edge-a, and according to mouse location and the edge of location relationship, in edge-a of middle Shang are another vertex; (

Himself completed the platform exclusively designed and implementation work. Graphics of draws algorithm main including: (1) are triangle: first determines two points get triangle of a edge a,, then under mouse location and the edge of location relationship, in edge a, of middle Shang get another ve