基于动态优先边求取视图轮廓信息算法

The Algorithm of Seeking View Outline Information Based on Dynamic Preferential Border

提出了基于动态优先边求取视图轮廓信息的方法 ,该方法在判别多路径轮廓走向时避免了角度计算 .多圆弧路径在分支处相切时 ,通过动态正方形的角点与圆弧圆心的同异侧性判别 ,可方便地决定候选路径的走向 .对参数化图形提出了基于搜索痕迹的视图轮廓信息重建方法 .视图轮廓信息的获取对多视图的自动划分、装配图处理及尺寸布置等有着重要的作用 .

A method of seeking view outline information based on dynamic preferential border is proposed. Angle calculation can be avoided when the correct outline direction at an intersection point with multi paths is selected. The final choice of candidate path is determined by the location of dynamic square corner point and the center of tangent arcs meeting at the common point. A method of rebuilding the view outline information is presented for generating parametric drawings based on searching traces. The view outline information plays a very important role for automatic partitioning of multi views, handling the assembly drawings and dimensioning layout etc.