How to enter my code presets in a Wrangle ?

[sebkaine]

Hi Guys,

There is now this great menu at the right of the text field where you can use code presets inside a wrangle.

I would like to know where i can customise this code and enter my own presets.

 

Thanks for your lights !

Cheers 

E

 

 

[holycause]

not sure how to add presets to that list, I always use the default preset menu to save my code

[Mandrake0]

 

Under installed Houdini there is the File: VEXpressions.txt

Copy to your User Path and edit it. 

Have Fun. :-)

 

EDIT:

No Fun i didn't get it to run with a seperated File VEXpressions.txt. I also have seen that Houdini has a Python code That loads the list but it doesn't load my values. *arrrggghh*

i do something wrong but i don't know what.....

Python Code under: vexpressionmenu.py

you can run it in Python Shell: 

# Python Code
import vexpressionmenu as v
v.loadSnippets()

 

Edited June 7, 2016 by Mandrake0

[mestela]

I could have sworn I saw it in the docs, but the only references google returns are from the sidefx forum and odforce. Anyway.

Create a file called vexpressions.txt in your ~/houdini folder, put your snippets in there. There's a slightly odd formatting to use, not too bad. Eg, I just tested this:

 

attribwrangle/snippet
    delete x% of points with slider
	    if (rand(@ptnum)< ch('threshold')) {
			removepoint(0,@ptnum);
		}

The indentation determines what the category/comment/code is, its documented within the example vexpressions.txt file which you can find by running this in the houdini python shell:

hou.findFiles('vexpressions.txt')

 

[sebkaine]

Thanks a lot for all your answers guys, this is really a big plus ,

i can't count the number of time i write pcopen in a single day ...

[Skybar]

Not sure how those presets work, but saving presets with the Gear icon saves all extra parameters and stuff you've added as well. Kinda nice if you made an asset-sort-of-thing but as a preset.

[deniz]

edit parameter interface, "Vexexpression", parameter description "Menu",  "vexpressionmenu" is under Houdini 15.5.480\houdini\python2.7libs

 

 

Edited June 7, 2016 by deniz

[sebkaine]

Thx for extra info guys !

[dedeks3000]

20 hours ago, mestela said:

I could have sworn I saw it in the docs, but the only references google returns are from the sidefx forum and odforce. Anyway.

Create a file called vexpressions.txt in your ~/houdini folder, put your snippets in there. There's a slightly odd formatting to use, not too bad. Eg, I just tested this:

 

attribwrangle/snippet
    delete x% of points with slider
	    if (rand(@ptnum)< ch('threshold')) {
			removepoint(0,@ptnum);
		}

The indentation determines what the category/comment/code is, its documented within the example vexpressions.txt file which you can find by running this in the houdini python shell:

hou.findFiles('vexpressions.txt')

 

'vexpressions.txt' file name doesn't work for me but VEXpressions.tx is ok !!

Thanks

[Mandrake0]

1 hour ago, dedeks3000 said:

'vexpressions.txt' file name doesn't work for me but VEXpressions.tx is ok !!

Thanks

 

it need to be VEXpressions.txt otherwise the hou.findFiles won't find it.

Python Code (vexpressionmenu.py):

def loadSnippets():
    """ Loads all the vexpressions from the VEXpression.txt
        files found in the houdini path.
    """
    try:
        filelist = hou.findFiles('VEXpressions.txt')

....

 

[bonsak]

Hi

You actually don't have to do that funky indentation to make this work, but you have to omit special characters like %:

attribwrangle/snippet
    delete x% of points with slider
	    if (rand(@ptnum)< ch('threshold')) {
			removepoint(0,@ptnum);
		}

 

If you write it like this it'll work and you'll get the indentation you put into the snippet:

attribwrangle/snippet
    Delete x of points with slider
    if (rand(@ptnum)< ch('threshold')) {
    	removepoint(0,@ptnum);
    }

-b

 

PS i wish the Code -> No formatting could be changed from black text on dark gray background. Doesn't have to be fancy. Just readable