鲁晨光的科学和哲学研究分享 http://blog.sciencenet.cn/u/lcguang 兴趣:色觉, 哲学, 美学, 进化论,广义信息,投资组合

博文

谁研究3D打印? 看看我的数学方法有用不?

已有 4621 次阅读 2013-1-28 08:58 |系统分类:论文交流| 3D打印, 立体布尔运算

我能提供立体布尔运算结果边界的通解。

结果是互不重叠的区域, 提供立体打印需要的上下左右边界。

下面是模拟打印结果。

New Method of Solid Boolean Operations with Continuous Value Logic

So short program, one never imagines!

Welcome Co-operating and Buying this Technique

 

New method uses continuous value logic to replace complicated if-then judgments. It makes program possess simplicity, reliability, and generality. In the three Boolean operations intersection,combination, and subtraction . +, - , operations,is most simple. If A-B can been resolved, then A+B=A-B+AB can also been resolved. So, Critical problem is how to obtain A-B. Follows are several samples of A-B. The most important thing is that we needn't worry about relative positions between A and B. The main program for A-B is shorter than 20 lines long no matter what boundary functions A and B have . For the bridge drawing,all source program including the definitions of boundaries of functions of A and B is shorter than 60 lines long. The method of plenary Boolean operations can been used to extract machining regions from the constructive-solid-geometry representation of a given object.

A-B Drawing 1  A: A cube minus a loop; B: a solid with upper boundary produced by sin(x) and lower boundary by a loop.

bridge.gif (8326 bytes)

Download program for drawing the above bridge

A-B Drawing 2     A: a cub2+column, B: a loop

Colorcup2.gif (9671 bytes)   

A-B Drawing 3    a cube minus a  ball

cubic-ball.gif (7691 bytes)

Drawing 4      a ball minus a cube

ball-cubic.gif (8257 bytes)

Plenary A-B:  A with boundaries x1,x2, y1, y2;  B with boundaries x3, x4, y3, y4

plainA-PlainB.gif (3832 bytes)

The method of plenary Boolean operations can been used to extract machining regions from the constructive-solid-geometry representation of a given object.

 



https://wap.sciencenet.cn/blog-2056-657174.html

上一篇:城镇化离不开农村农场化
下一篇:农民工涨价——是刘易斯拐点还是劳动力价格博弈拐点?
收藏 IP: 75.156.91.*| 热度|

2 鲍海飞 张学文

该博文允许注册用户评论 请点击登录 评论 (1 个评论)

数据加载中...
扫一扫,分享此博文

Archiver|手机版|科学网 ( 京ICP备07017567号-12 )

GMT+8, 2024-5-18 02:57

Powered by ScienceNet.cn

Copyright © 2007- 中国科学报社

返回顶部