Forums Technical Discussion a list of group names to integer attrib

a list of group names to integer attrib

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AndyW
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I need to turn a list of groups into an integer point attrib: group0, group1 group2, etc. in VEX Is there a function that turns strings into integers? or perhaps there's a better way that doesn't rely on numbered groups, maybe storing the list of groups in an array and iterating through it? Any advice is much appreciated!
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animatrix_
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You can use the random_shash function:

i@groupid = random_shash ( mygroupname );
Edited by animatrix_ - Aug. 29, 2017 12:55:29
Senior FX TD @ Industrial Light & Magic
Get to the NEXT level in Houdini & VEX with Pragmatic VEX! [www.pragmatic-vfx.com] https://lnk.bio/animatrix [lnk.bio]
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jsmack
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if you want contiguous index numbers, you can pass your list of groups as a string parm. This would require the list of groups is persistent and non-varying, and the groups are exclusive.

// Assuming groups are exclusive
int @class = -1;
string group_list;
string groups[];
group_list = chs("group_list");
groups = split(group_list);
foreach( int index; string grp; groups ){
    if( inpointgroup(0, grp, @ptnum ) ) {
        @class = index;
        break;
    }
}
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