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十二、shapes

1. The control points are attributes on the shape which are usually arrays of points. Control points become interactive, i.e. they can be selected and manipulated, by associating the control point attributes with a component.Components are objects (M…

Allegro Out Of Date Shapes原因及解决方法

使用Allegro设计PCB板时,查看Status,经常会遇到out of date shapes的警告信息,具体如下: dynamic shape is still out of data or empty.Run out of date shapes Report from status dialog to identify them. 此问题是由于铺铜时有shape没有铺上,产生多余的shape.此问题的常规解决方法如下: 1. 关闭所有层的颜色,仅打开所有层的Bound这一选项的颜色:…

Topology Shapes of OpenCascade BRep

Topology Shapes of OpenCascade BRep eryar@163.com 摘要Abstract:通过对OpenCascade中的BRep数据的读写,理解边界表示法的概念及实现.理解了拓朴形状的数据结构,就对ModelingData模块有了清晰认识,方便OpenCascade其他模块如ModelingAlgorithms和Visiualization模块的理解. 关键字Key Words:OpenCascade, BRep, Topology, BRep Format 一…

graphviz - Node Shapes

Node Shapes There are three main types of shapes : polygon-based, record-based and user-defined. The record-based shape has largely been superseded and greatly generalized by HTML-like labels. That is, instead of using shape=record, one might conside…

POJ 3449 Geometric Shapes(判断几个不同图形的相交，线段相交判断)

Geometric Shapes Time Limit: 2000MS Memory Limit: 65536K Total Submissions: 1243 Accepted: 524 Description While creating a customer logo, ACM uses graphical utilities to draw a picture that can later be cut into special fluorescent materials. To…

Geometric Shapes - POJ 3449（多边形相交）

题目大意:给一些几何图形的编号,求出来这些图形都和那些相交. 分析:输入的正方形对角线上的两个点,所以需要求出来另外两个点,公式是: x2:=(x1+x3+y3-y1)/2; y2:=(y1+y3+x1-x3)/2; x4:=(x1+x3-y3+y1)/2; y4:=(y1+y3-x1+x3)/2; 这个是可以推倒出来的,有兴趣的可以推一下,给的矩形三个点,是按照顺序给的,求出来第四个点即可,比较容易求,x4=x1-x2+x3, y4=y1-y2+y3 别的图形的点也都是按照顺序给的,两个图…

详细分析Orchard的Content、Drivers, Shapes and Placement 类型

本文原文来自:http://skywalkersoftwaredevelopment.net/blog/a-closer-look-at-content-types-drivers-shapes-and-placement 在本文中,我们将看看那些引让我夜不能寐的概念,因为我的生活不能找出与:shapes, content types, parts, fields, drivers and placement 等类型对应的东西.如果你有些使用Orchard的经验,但仍然觉得有点笨拙的控制shap…