听说GH可以辅助填色

原文地址听说GH可以填色

这是一个明媚的早晨，休息了一个周末的Holt君带着满满的激情开始了一周的工作，勤劳勇敢的他从周一一大早开始就尽情的挥洒着汗水，这时，慈祥有爱的领导大人来到Holt的面前甩给了他一个cad，拍拍他的肩膀，充满慈爱的说：

抓紧填！越快越好！都特么给我填上！

为了响应领导的厚爱，为了不辜负领导满满的期待，Holt君立马打着激素开始了填色工作，终于，皇天不负苦心人，两个小时后，Holt君成功的掀了桌子

这特么得填到什么日子，好多线不是封闭了，魔术棒选都选不上

突然，Holt君的内心浮现出一个声音，伟安生，不解机（炉石梗）·····

不对·····是当你发现一件事情你做的特别麻烦特别低效的时候，很有可能是你方法不对···或者不知道高效的方法~~~~

案例讲解——By KD

接下来，就由咱们一起来演示下快速的方法。展现我大rhino无穷的力量~

嗷嗷~

嗷嗷~
首先，目标是填色，材料是一个cad，导入rhino一看，什么鬼，怎么就俩点··

不用急，很多cad导入rhino都会有各式各样的问题，本案首先是cad有高度，你得用设定xyz坐标命令来把所有cad线拍平到一个平面上，需要注意的是，有的cad导入的图块是有高度的，而有高度的图块是没办法被拍平的，得炸开再拍

然后删掉右下方的多余部分，一个缩放至视图就可以看到真面目了

由于rhino当中点是按照视图比例大小显示的所以看起来比较大，我们直接全选点删除就哦了，反正这里我们不需要~~这里再补充下，rhino当中，基本上，你可以选择任何你想要选择的物体，不论是曲线还是直线还是一定长度的线还是封闭的线还是开放的线还是面还是多重曲面还是文字还是标注还是上一次选择的物体还是根据颜色选择还是和ps一样套锁选择还是只选择靠在一起的物体等等等，真的是很全能的，所以还是那句话，如果你觉得rhino什么事情做得很麻烦的话，很有可能（九成九）是你不知道对应的命令而已·····

然后我们关闭其他不需要的图层，只打开我们需要填色的图层的线稿所在图层

选中所有文字，填色就不要了，直接删除。根据实际情况你可以能还要选择所有的图块炸开之后再进行下一步操作，这里木有图块就忽略了。

这里我们先选取封闭的线框看看有多少线咱们不需要处理的。

还蛮多的嘛，不错不错，先新建个图层放进去存着，我们来处理剩下的这些刺头，可以看到剩下的这些鱼龙混杂，看似根本没法处理啊，

我们看个局部，这些线有的长是街道，有的短是杂线，有的看起来封闭但是实际没封闭（因为我们刚才没选中）的线框，而这些线框才是我们需要填色的东西，怎么办？怎么选择出来？rhino好像木有这样的命令啊，有的好像就只有选择一定长度以下的线·····咱们有gh嘛~~~

现在的线虽然有长有短，但是我们想要的建筑线框的特点却很明显那就是———这些线框的起点和终点靠的非常近！那就简单了，我们根据这一点来编个gh，首先删除边数四边以下的，本案中三边形肯定不是建筑轮廓，然后根据起点与终点的距离来筛选建筑轮廓，这样基本结果就差不多了。

然后我们就愉快得到了我们想填色的部分，有了闭合的线框了，接下来还不就是小意思么~~~~

导进ps，一个反选，就填完了，如果你比较懒的话，你甚至可以选择上个颜色，然后渲染·····是的，然后渲染，叠线框。

当然这方法肯定还是会有误差的，毕竟谁知道这些个乱七八糟的坑爹cad是怎么画出来的，还有的封闭有的没封闭，有的有高度有的没有，有的物件还远在千里之外·····看来想画一个干净漂亮的cad真的是一件很考验的功夫啊······

这是最后的成图~~~~用时，十五分钟·······

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