Drawing a Sankey Diagramm

Hi,
I want the path on the network to grow in width with every transporter driving over the network node. So I increase a label each time the transporter enters the networknode.
Now I use the onDraw trigger of the networknode like this:

double d_width;
treenode t_obj;
drawtomodelscale(current);

for(int x=1;x<=nrop(current);x++)
{
t_obj=outobject(current,x);
d_width=getlabelnum(current,x+1)/100;
glLineWidth(d_width);
drawline(view,xloc(current),yloc(current),zloc(cur rent),xloc(t_obj),yloc(t_obj),zloc(t_obj),0,1,0);
}

So this is working fine, but the origin of the lines is far away from the networknode. If I use xloc(current), yloc(current) and zloc(current) the line should start at the networknode??

Nico,

your code is only working if the first NN has location (0,0,0).

I modified your code a bit and it seems to work, but I am not sure, because if I change the location of NN2 it works in my little example,
but does not work, if I change location of NN1. Then I need to change the location of NN2 and it works even if I put it on the same position.
By the way, your code is not using label 1 but label x + 1, so I change this to x.

Anyway, maybe my code give you some hints.
Don't ask me about the commands, I have no clue what I am doing ...

double d_width;
treenode t_obj;
drawtomodelscale(current);
for(int x=1;x<=nrop(current);x++)
{
t_obj = outobject(current,x);
d_width = getlabelnum(current,x)/100;
glLineWidth(d_width);
double dX = vectorprojectx(model(), xloc(t_obj),yloc(t_obj),zloc(t_obj), current);
double dY = vectorprojecty(model(), xloc(t_obj),yloc(t_obj),zloc(t_obj), current);
double dZ = vectorprojectz(model(), xloc(t_obj),yloc(t_obj),zloc(t_obj), current);
drawline(view,0,0,0,dX,dY,dZ,0,1,0);
}

Hi Tom,
thanks for the hint.
You have to project the coordinates of the starting object (current) as well.
I now use a triangle to show the amount of transports.
Attached you will find the working model.

I an not sure, but in my case it is working. But maybe because I do it different.

Because it looks like that some people are interested in sankey diagram, I built also a small sample model.

http://www.flexsim.com/community/for...do=file&id=212

There it is shown how I did it and I am sure we learned from each other. Thanks Nico.

Yes, Flexsim can do a sankey diagram ...

Hi Tom,
thank you for your modell.
I looked at it and I just like to mention that when you are executing an offset travel the arrival trigger will be executed twice, but the toedge is 0, so there will be no counting on the lables.
Just in case someone modifies your modell an forgets about this behavior...

Hi,
in my last model was a bug, so the triangles where only shown correctly when the tow linked nodes where on the same x-coordinate. Attached you find the modell with columns which are now 3d(wow) and are rotated towards the linked node.