target specific avatar part

Is it possible to target a specific point on an avatars body - for instance their head? That would take in account all the different possible heights of various avatars - say I want a particle stream or something to target the avatar head instead of the usual center - possible?

Assuming the av is standing upright, llGetAgentSize() might work for targeting the head.

yep been looking at that snipet - just not sure how to go about implementing the target height once its detected size - so I wasnt sure if it was possible or not

cast the bounding box vector of llGetAgentSize() to something like

vector height = llGetAgentSize();

then you can use the z coordinate of the vector for your height in another location vector, however if you are using an avatar position as the target vector the vector given will be at the center of the avatar so you would have to half their height and add it to the target vector

float offset = height.z;

vector target_avatar = llDetectedPos(0);

vector target_vector = <target_avatar.x, target_avatar.y, target_avatar.z + offset);

Hmmm. Something along those lines although I'm sure some clever soul will come in and give you a better example.

heh I suggested a similar method once, but got drowned out by the 'move a rezzed target prim' crowd... both are options