Forums Technical Discussion Reading geometry's detail in attributewrangler?

Reading geometry's detail in attributewrangler?

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nicholas_yue
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vector dk = detail("op:/obj/geo1","k");
float pk = point("op:/obj/geo1","k",@ptnum);
//printf("pk = %f\n",pk);
printf("dk = %f, %f\n",dk[0],dk[1]);
float rr = (pk-dk[0])/(dk[1]-dk[0]);
@Cd.r = rr;
@Cd.g = rr;
@Cd.b = rr;

I am trying to read a pair of detail level attribute but I am getting zeros and not those I see in the spreadsheet, what am I doing wrong ? I can see the k and k has values 0 and 16 but my print out says zero.

Thank you.

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Nicholas Yue
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anon_user_09389530
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I see two things here at the first glance

float pk = point("op:/obj/geo1","k",@ptnum);
if you need just the point attribute from the same geo, you can just type 
@attrib
or in your case 
f@k

Use the input numbers instead of 
"op:/obj/geo1"
"op:/obj/geo1" is the obj node btw and not the sop level node, not sure how would it behave.
mb smth like that would work better 
detail(0, "k");

Let me know if smth is unclear
Edited by anon_user_09389530 - Sept. 19, 2021 01:24:42
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Enivob
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There is even more space dust on your piece of code.
k is a vector 2, not a vector (which defaults to 3).
https://www.sidefx.com/docs/houdini/vex/lang#data-types [www.sidefx.com]

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