Forums Technical Discussion Has anyone used the new surfacedist vex function?

Has anyone used the new surfacedist vex function?

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ouroboros1221
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I'm not sure how to correctly set it up.

float surfacedist(<geometry>geometry, string ptgroup, string P_attribute, int search_pt, float max_radius, int &closest_pt, string distance_metric)
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Konstantin Magnus
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surfacedist() lets you measure the distance (f@dist) between a search point and a group of points ('to_be_found') on the same surface and also returns the closest point (i@pt_close) from that group to your search point within a certain radius (1.2).

int pt_search = 1004;
i@pt_close = -1;
f@dist = surfacedist(0, 'to_be_found', 'P', pt_search, 1.2, @pt_close, 'surface');

It can probably also measure between other attributes than position ('P') such as colors or UV coordinates. And it can either run over edges or across polygons ('surface').

Attachments:
surfacedist.hiplc (119.0 KB)

https://procegen.konstantinmagnus.de/ [procegen.konstantinmagnus.de]
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ouroboros1221
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Konstantin Magnus
returns the closest point (i@pt_close)

Hi thanks for the tip, I noticed that you pre-defined the pt_close as -1, why is that? According to the doc,&closest_pt returns
-1 if no closest point was found.
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mestela
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He could initialise it to anything, it doesn't really matter. This way at least if the surfacedist line is commented out, but he had some nodes or vex later on that was expecting pt_close to be a valid point number, it's guaranteed not to clash with any real point values and break things.
http://www.tokeru.com/cgwiki [www.tokeru.com]
https://www.patreon.com/mattestela [www.patreon.com]
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