Drawing lines

Scripting Issues
1

Hi, Is there a way to draw a line between two 3d points? I would also possibly like to vary the thickness of the lines

Thanks
-Salik

2

Yup, here you go.

lines = LineSegs()
lines.moveTo(x1,y1,z1)
lines.drawTo(x2,y2,z2)
lines.setThickness(4)
node = lines.create()
np = NodePath(node)
np.reparentTo(render)
3

Ahhh… thanks that works.
Is there a way to change the line color? I could not find anything about what you mentioned in the docs.

4

Yes, there are ways.

The manual is not the only piece of documentation. It’s just for getting you started, and to explain a few concepts. Much more important if the API reference. Look at the documentation of the class LineSegs, and look there for methods which have “color” or “thickness” in their name:

http://panda3d.org/apiref.php?page=classes

enn0x

5

You can also just do a setColor on the node.

6

I draw lots of lines in my game and they are slow. I am wondering if it would be faster to create a geom with say 1000 vertexes and just use vertex rewriter and if have extra just draw 0 length lines?

But that is more advanced feature not recommended for newbies.

7

I tried this code but it seems that the line thickness only goes so far. I need to get it thicker. Any suggestions?

8

No its a hardware limit. If you want lines generated with real geometry (rectangles that look like lines) you might have to wait till 1.6.0 and then use MeshDrawer

9

thanks