On Apr 9, 8:36*am, Emile van Sebille <(E-Mail Removed)> wrote:

> On 4/9/2010 8:04 AM Peyman Askari said...

>

> > Hello

>

> > This is partly Python related, although it might end up being more math related.

>

> > I am using PyGTK (GUI builder for Python) and I need to find the intersection point for two lines. It is easy to do, even if you only have the four points describing line segments (http://www.maths.abdn.ac.uk/~igc/tch...s/node23.html). However, it requires that you solve for two equations. How can I do this in Python, either solve equations, or calculating intersection points some other way?

>

> I needed this a couple years back and used parts of pycad without much

> difficulty.

>

> Emile
You can also do this by creating a Python representation of a line. I

did it by creating a vector class (using named tuple) and a line class

that stored a point and a direction vector. From there, you can find

the intersection of two lines (or a line with a circle, triangle, etc.

through some mathematical jiggery pokery using dot products.

If anyone want to see it I can post the code when I get home