Image Editing/Geometry Software?

[abbethesieyes]

Hi...sorry if something similar has already been posted but that didn't help me.

I am doing 2D image analysis on photos, and in addition to something like ImageJ which allows the placement of points and the measuring of angles and lengths, I need something that can draw midpoint, tangent and parallel lines based on coordinate locations in the image. I have tried all the standard geometry programs ubuntu has to offer but none of them allow opening an image to edit on. Any ideas?

Thanks!

[lukjad007]

Have you tried Kig?

[abbethesieyes]

Yes. No luck. Though I'm not saying it's impossible with Kig. Just that I haven't been able to make it work.

[Xnst]

In QCad you can import images (jpeg, png etc) with Draw --> Image

Once the image is imported you can draw lines as in an ordinary CAD-tool ontop of the image. When you are pleased with the result it is just to export in whatever image format you like.

I think these features are what you are looking for.

/Niclas

[hsweet]

The best one by far that I have found is Geogebra. It's not in the repository, but it runs fine on my system via java. + you can import photos