Path2D getWidth() property

totebo

I've noticed Path2D returning 0 in width and height when using the Sprite inherited property. Is there another way to get the width and height of the Path?

local p=Path2D.new() local ms="MLLLLZ" local mp={0,0, 100,0, 100,100, 0,100, 0,0} p:setPath(ms,mp) p:setLineThickness(5) p:setPosition(100,100) stage:addChild(p)   print(p:getWidth()) -- Returns: 0

antix

Did you try getBounds()?

hgy29

See my answer here: http://giderosmobile.com/forum/discussion/comment/46468#Comment_46468

totebo

Aha, thought I'd read about it before. So getBounds() is the one to use?

totebo

While I'm at it, I don't fully understand the "MLLLLZ" bit.

If you need a coordinate for each "instruction", why does this work:

local ms="MLLLLZ" -- 5 coordinates, 6 instructions local mp={0,0, 100,0, 100,100, 0,100, 0,0}

And not this:

local ms="MLLLZ" -- 5 coordinates, 5 instructions local mp={0,0, 100,0, 100,100, 0,100, 0,0}

Is it because Z simply closes the last and first coordinate, and so doesn't need coordinates itself?

hgy29

Nope, sorry getBounds() won't work either. I guess it makes Path2D unusable for now in some situations until next gideros release.

For instructions and coordinates: coordinates count must match exactly what the instructions need. M and L need one coordinate, but Z doesn't need any. Here is a quick summary:
- M,L: 2 values (x,y)
- Q: 4 values (cx,cy,x,y)
- C: 6 values (c0x,c0y,c1x,c1y,x,y)
- Z: 0 values
- H,V: 1 value (x or y)
- A: 7 values (r1,r2,angle,largeArc,sweep,x,y)

totebo

Great, thanks for the explanation! Look forward to the next release.