PShape vertex coordinates after scaling

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fangmdu

PShape vertex coordinates after scaling

in General Discussion • Other • 11 months ago

I'm trying to use the getVertexX, getVertexY method to get all the vertex coordinates, in order to compute whether mouse is inside.

When I do not apply scale to the svg Pshape, it works well.

But when I used scale() to the Pshape, it still detects the old coordinates. So I guess the scale() method do not update the vertex coordinates?

Thanks

Replies(1)

PhiLho

Re: PShape vertex coordinates after scaling

11 months ago

Indeed, PShape.scale() changes the matrix of the shape, not the internal coordinates. The matrix is applied just before drawing the shape, so it is used only at drawing time.
Alas, I don't see, in the current API, a way to get the matrix to apply it manually on a given vertex.

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