Wrangle x Python book I tried it [2]
What is this?
This is a continuation of this
Wrangle x Python book I tried it [1] http://qiita.com/it_ks/items/baba553ca587ed52a316
Last time it was on p.10. This time, I will work on Python example sentences from p.11 to p.15.
Before accepting
** Houdini Practical Handbook Wrangle x Python ** This is a book produced by the circle "Magic Distilled Water". http://majou.jp/archives/667/
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hmath.buildRotate
p.11 Rotation.
for point in geo.points():
pos = point.position()
mtx = hou.hmath.buildRotate(0,45,0)
pos = pos*mtx
point.setPosition(pos)
It will be like this
It's rotated, oh oh oh
By the way, Make another Grid and use it as a template The original state is compared with the one after rotation.
find/add/set attribute
The attributes on p.14 are also
This doesn't happen in the screenshot
Suddenly the opening line
hou.pwd().geometry()
It was a taste that became.
evalParm
Get the value from the parameter using p.15, evalParm.
First you have to create the parameters.
Parameter creation
From the action menu at the top right of the parameter panel
「Edit Parameter Interface...」
Such a UI will appear ↓
Select the data type in the left column and go to the right column. (Drag and drop is fine, or the arrow on the column partition is OK)
Change the parameter names as instructed in the book.
A slider will appear below the Python Code field.
Run
If you move the slider, it will move up and down.
Summary
It's getting interesting, isn't it?
(Even if it is attached to it, there are abundant data types when adding parameters. It is reliable.)
reference
Edit Parameter Interface window http://sidefx.jp/doc/ref/windows/edit_parameter_interface.html
Geometry > findPointAttrib http://sidefx.jp/doc/hom/hou/Geometry.html#findPointAttrib Geometry > addAttrib http://sidefx.jp/doc/hom/hou/Geometry.html#addAttrib
Point > setAttribValue http://sidefx.jp/doc/hom/hou/Point.html#setAttribValue
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