Stroke Width Change When Applying Affine Transform Directly on Path Object

[ly20...@gmail.com]

I wanted to keep segments in a path managed by my own coordinate system and set the paperjs transformation directly based on a view change. -- the path itself does not change, but the view changes.

I used the following code snippet.

var path = new paper.Path();

path.applyMatrix = false;

// :

// :

// : calculating transform m based on view change

// : m = [a, b, c, d, tx, ty] 

path.matrix.set(m[0], m[1], m[2], m[3], m[4], m[5]);

while the path gets draw properly with respect to the coordinates, the stroke width changes instead of staying constant. That is, when I zoom in, the stroke becomes thicker, and when I zoom out the stroke becomes thinner. I would like it to stay constant, is there a suggested way to do this instead of changing the stroke width to compensate it?

Thank you!

[Jürg Lehni]

You can try turning off stroke-scaling:

    path.strokeScaling = false;

Also, please note that this should too in v0.10.3:

    path.matrix.set(m);

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[ly20...@gmail.com]

Thank you Jürg for the prompt reply!

My fault for not looking at the API doc carefully...it was there now that I read it again.

Really enjoy using paperjs and thank you and Johnathan for the great work!

[ly20...@gmail.com]

Also Jürg can you advise on how to change the styling of the handle? In addition to changing the size using

paper.settings.handleSize

I'd also like to change its shape to a circle and also change its fill style depending on whether a handle is hit (say, from non-filled to filled). Or for even more flexibility is it possible to supply my own shape using a closed path from paperjs or a drawing routine when a position is supplied (if I can inject my own drawHandle and hit test routines)?

Than you!

 
On Thursday, June 8, 2017 at 3:32:16 AM UTC-7, Jürg Lehni wrote:

[Jürg Lehni]

Those things aren’t possible right now, but there’s an issue for it. Happy to accept a PR:

https://github.com/paperjs/paper.js/issues/433