Intersection Points for Two SkPaths

[Matthew Leibowitz]

Hi skia-ers, I was wondering what the best way to calculate/obtain the intersection points of paths.

I know about SkPathOps' Op(SkPath, SkPath, SkPathOp, SkPath);

This is almost what I am looking for, but rather I was hoping for the intersection of path points, not the intersection of path areas.

I tried something with SkPaint::getFillPath(SkPath, SkPath);

This can be used, but I may have to use an average-point finder as the intersection is made up of a few points.

So, before doing anything rash, I was hoping for the experts to maybe point out the correct path. :)

[Cary Clark]

Hi Matthew

There's a feature request about this you can star: bug.skia.org/5624

The bug description is a bit vague, it does include what you're asking for.

Because this feature isn't gating our primary customers (Chromium, Android) 

it's not something I'll get to anytime soon, although I anticipate that the

implementation is straightforward and requires a minimum amount of

plumbing.

If you're interested in taking a stab at coding this, I'm happy to help.

Cary

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[Erik Sombroek]

I would be interested in this feature at well!
Would also love to give a stab at it.

Best,

Erik

On Monday, November 21, 2016 at 9:49:36 PM UTC+1 cary...@google.com wrote:

Hi Matthew

There's a feature request about this you can star: bug.skia.org/5624

The bug description is a bit vague, it does include what you're asking for.

Because this feature isn't gating our primary customers (Chromium, Android) 

it's not something I'll get to anytime soon, although I anticipate that the

implementation is straightforward and requires a minimum amount of

plumbing.

If you're interested in taking a stab at coding this, I'm happy to help.

Cary

On Mon, Nov 21, 2016 at 3:14 PM, Matthew Leibowitz <mattl...@live.com> wrote:

Hi skia-ers, I was wondering what the best way to calculate/obtain the intersection points of paths.

I know about SkPathOps' Op(SkPath, SkPath, SkPathOp, SkPath);

This is almost what I am looking for, but rather I was hoping for the intersection of path points, not the intersection of path areas.

I tried something with SkPaint::getFillPath(SkPath, SkPath);

This can be used, but I may have to use an average-point finder as the intersection is made up of a few points.

So, before doing anything rash, I was hoping for the experts to maybe point out the correct path. :)

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