中望3D强大混合建模，让设计更高效，造型更美观
本帖最后由 国产007 于 2015-10-22 10:10 编辑关键词：三维CAD 混合建模 中望3D 高效 造型
企业进行产品设计的时候，往往需要使用三维CAD软件进行建模，来构建产品的造型，再进行一些细节的调整、打磨。因此，CAD软件的建模效果，对产品的造型有着重要的影响。从设计角度出发，优质产品的美观度，实用度都对设计有较高要求，而从产品生产的角度来看，优质的产品，在生产过程中能最大化地利用上所有的材料。
当前，市面上各种三维CAD设计软件，在建模方面都有自己的特点，而常见的，主要有曲线建模、实体建模、混合建模这三种。其中，混合建模相对曲面建模和实体建模来说，是一个较新的概念。尽管每个软件对混合建模都有不同的解释，但笔者相信很多使用三维CAD设计软件的工程师，对这个概念还是比较清晰的。下面我们通过简单的对比，还有一些图例，来说明下混合建模跟另外两种传统的建模方式之间的区别。
图1 传统建模与混合建模的区别
从上图可以看出，工程师在做产品设计的时候，要么先做线框，然后再设计面，这样一步步来完成整个产品的设计；或者选择直接通过实体的加减运算，来完成产品的设计。然而，现在消费者对产品外型的要求越来越高，企业为了占领市场，也会越来越注重产品的外型设计效果，而仅通过传统的设计方法，已经无法很好地去满足设计需求了。因此，混合建模的出现，则能让设计工程师在设计过程中获得更多设计的灵活体验，也补足了单纯的曲线建模或者实体建模的不足，从而设计出更好的产品。
下图是一个简单的混合建模操作效果图，通过面与实体的修剪操作，从而更灵活、高效地获得造型效果。
图2 面与实体操作后的效果
中望3D作为一款专业高效的国产三维CAD设计软件，具有强大的混合建模功能。接下来，笔者将为大家介绍中望3D丰富的造型及曲面功能，是如何帮助设计工程师完成日益复杂的外型设计的。
首先，我们来看看中望3D混合建模方面，有哪些相关功能。
图3 中望3D混合建模的相关功能界面
通过上图所示的这些功能，可以实现：
1、线框-面-产品的设计方法
2、实体建模
3、混合建模
下面，我们结合简单的实例，重点来看看混合建模方面的功能效果。
【设计需求】：如下图所示，需要在后保险杠上做个车牌安装位；
图4 需设计车牌安装位的后保险杠
【常规设计】：一般要通过“面”功能来做出车牌的安装位（如下图），然后使用“面修剪”或者“合并”等功能，把车牌和后保险杠这两个面组合在一起。这种方法操作步骤繁多，且实际操作起来，效果也不够直观，影响设计工程师的工作效率。
图5 车牌安装位 图6 组合后的后保险杆
【中望3D解决方案】：通过实体与曲面做布尔运算，即可直接生成车牌安装位。具体操作时，只需要创建好后保险杠曲面和车牌安装位实体，然后点击造型模块下的组合功能（即下图红框中图标），进行曲面和实体的布尔运算，即可直接生成车牌安装位的效果，一键即可到位。
图7一键到位，中望3D混合建模操作界面
图8 生成车牌安装位后的效果图
中望3D可以高效地实现曲面对实体的修剪，也可以使用实体对曲面进行布尔运算来达到我们所需要的，更高的设计要求，与此同时，混合建模的相关功能，还能够设计工程师更加直观、高效地去完成各种造型设计。
全新的三维CAD/CAM软件中望3D 2015 SP版已于9月22日发布，SP版全面优化升级，整体性能更稳定，设计效率更高。更多详情，欢迎访问中望3D官方网站：www.zw3d.com.cn http://www.baixing.com/u/163951970/
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