Search found 7 matches

by artimusp
Sat Jun 19, 2010 4:00 am
Forum: SVG / XML Code
Topic: Angle of Rotation from a transform matrix
Replies: 2
Views: 5214

Re: Angle of Rotation from a transform matrix

Perfect. Thanks very much.
by artimusp
Fri Jun 18, 2010 9:55 am
Forum: SVG / XML Code
Topic: Angle of Rotation from a transform matrix
Replies: 2
Views: 5214

Angle of Rotation from a transform matrix

Is there a way to get the angle of rotation from a svg transform matrix? for example: rectangle = x = 0 y = 0 width = 200 height = 200 then I rotate the rectangle by 45 degrees and get matrix(0.70710678,-0.70710678,0.70710678,0.70710678,-41.421356,100) is there a way I can extract the degree (in rad...
by artimusp
Fri Jun 18, 2010 4:45 am
Forum: SVG / XML Code
Topic: Center point after rotation
Replies: 5
Views: 5803

Re: Center point after rotation

Never mind, I figured it out pretty easy actually I just wasn't thinking.

I just created vertices off of the first x,y and used your same formula then caluclated the distance accordingly.
by artimusp
Thu Jun 17, 2010 6:33 am
Forum: SVG / XML Code
Topic: Center point after rotation
Replies: 5
Views: 5803

question about width and height after rotation

I thought I'd try and figure this out on my own but I've been reading around at different websites trying to figure this out and now I am rather confused. Kind of coincides with the same thing. Here's the situation given the same example: start X = 0 start Y = 0 start width = 100 start height = 100 ...
by artimusp
Thu Jun 17, 2010 1:23 am
Forum: SVG / XML Code
Topic: Center point after rotation
Replies: 5
Views: 5803

Re: Center point after rotation

Thank you very much. This is exactly what I needed.
by artimusp
Wed Jun 16, 2010 6:43 am
Forum: SVG / XML Code
Topic: Center point after rotation
Replies: 5
Views: 5803

Center point after rotation

Hello, I'm wondering if anyone knows how to get the center point of a rectangle after it's been rotated. I've Changed the transform settings to "Preserved" in document properties so it always saves the starting x,y,width,height and then I just have to deal with the matrix. What I'm basical...
by artimusp
Sun Jun 13, 2010 11:26 am
Forum: SVG / XML Code
Topic: Transform matrix
Replies: 6
Views: 12388

Re: Transform matrix

So like previously said. is there a way to get the exact x,y coordinates of a rectangle when it's been rotated. a non-rotated rectangle works fine but the moment it rotates the x and y get screwed up. I'm trying to use inkscape as a level editor which it seems to be perfect for. I'm basically just u...

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