when using an attributewrangle inside a foreach looop, you need to connect the "metadata" foreach node
(that extra foreach node that contains the iteration value)
and you need to connect that node to the second input of the attributewrangle

int thisptnum = detail(1,"value",0);
int thisvalue = thisptnum * 10;
vector thispoint = point("../line","P",thisptnum);

setpointattrib(geoself(), "n2", thisptnum, thisvalue, "set");

printf(" P=%f ptnum=%d value=%d\n",thispoint,thisptnum,thisvalue);

animatrix_
You can do the same without connecting the meta node to attribwrangle node. You just have to add a spare parm pointing to the meta node and then using -1 for the detail function call:

detail ( -1, "iteration" )

WillA

animatrix_
You can do the same without connecting the meta node to attribwrangle node. You just have to add a spare parm pointing to the meta node and then using -1 for the detail function call:

detail ( -1, "iteration" )

Could you please add more details to your suggestion.
Add a spare parm pointing to the meta node is a bit vague to me.

Connecting the meta node to the second input of the attributewrangle is a simple fix.

thanks

Hannah Jahanshahi
about the spare parm, these might be helpful

also I noticed that you might missed the last part of detail function
detail(surface_node, attrib_name, attrib_index)
yours is
detail("op:../foreach_begin1_metadata1", "iteration");
not sure but maybe adding a value for attrib_index will help with you're issue