pointcloud question Need a little help about point cloud system

[jojomadstar]

Hi guys 

This supposed be a simple question...but i just can't figure out for hours.

Here is the situation.

I have a point cloud system, query position is few particles which run through bunch of scatter points.

The goal is to get the distance between those point cloud points and their source point, so i can give a Cd value based on that distance.

But some how i just couldn't get the correct distance value.

I attach the hip file here. Hope some one can help me out... 
 

PS: apologized for bad English

HelP.hip

[Sean-R]

Hey Ryan,

Not sure if you sorted this but though I'd give it a try. I managed to get the distance value by placing your vop where you scatter your points into a for each loop and then iterating over each particle.

 

HelP_SeanR.hipnc

[ThomasPara]

Hi

I think the pc functions inside the vop is a bit messy, its easier to do in vex in an wrangle.

Heres an quick example of how you can do it in vex, since the distance is float its stored in @Cd.r, just for visuals.

@Cd = 0;
vector position;
float dist,searchdist;
searchdist = chf("searchdist");
int handle = pcopen(1,"P",@P,searchdist,chi("searchpoints"));
while(pciterate(handle)){
    pcimport(handle,"P",position);
    pcimport(handle,"point.distance",dist);
    int point = addpoint(0,position);
    dist = fit(dist,0,searchdist,0,1);
    setpointattrib(0,"Cd",point,dist,"set");
    }

[jojomadstar]

Thx for all the reply. Really appreciate it

Actually after asking many ppl and tried other stuff. I figured out other solution for this.

Using PoingCloud isn't necessary. Using for each loop out side the vop and point replicate can simply do the job. Much more strait forward.

But anyway I also got other solution from my instructor Peter by using point.distance fit range with Pscale (my searching radius) to get the same result...


 

HelP.hipnc