# sgdimitris

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1. ## Intersection of two line segment in 3 dimensions

Hello to all users, I have a simple question for more of us. I am developing a project and I need to calculate if two line segment intersect. is there any mathematical way to do that? With more details: Segment_1 is from point A to point B, where A=(X_a, Y_a, Z_a) and B=(X_b, Y_b, Z_b) Segment_2 is from point C to point D, where C=(X_c, Y_c, Z_c) and D=(X_d, Y_d, Z_d) Is there any condition between the points coordinates that determines if the two segments intersect? Thanks in advance
2. ## Intersection of two CONVEX polyhedrons

Thanks Crowley for the advices in general! I already implement your non-library/direct algorithm and works fine and it is fast!!! Thanks All the best
3. ## Intersection of two CONVEX polyhedrons

Hello Crowley99, do you have some links that can help us implement one of the two given algorithms? Regards, Dimitris
4. ## Intersection of two 3D Polyhedrons

Hello Crowley99, do you have some links that can help us implement one of the two given algorithms? Regards, Dimitris
5. ## Intersection of two CONVEX polyhedrons

your post was helpful, that's why I gave you points in reputation. I just wanted to have a second advice, and because the previous topic was in general polyhedron, that's why I posted again. Cause in the previous post I mentioned that they are convex only in an inside message
6. ## Intersection of two CONVEX polyhedrons

Hello to all users, I need to calculate the intersection of two given [u][b]CONVEX[/b][/u] 3D polyhedrons. How can I do that? I know the x,y,z, coordinates of each vertex and also the triangles list that I use to draw each polyhedron. Any help would be very very appreciated. With regards, Dimitris
7. ## Intersection of two CONVEX polyhedrons

Hello to all users, I need to calculate the intersection of two given [u][b]CONVEX[/b][/u] 3D polyhedrons. How can I do that? I know the x,y,z, coordinates of each vertex and also the triangles list that I use to draw each polyhedron. Any help would be very very appreciated. With regards, Dimitris
8. ## ello to all users, I'm making a project for my university and I need to calculate the intersection of two given 3D polyhedrons. How can I do that? I k

Hello to all users, I need to calculate the intersection of two given [u][b]CONVEX[/b][/u] 3D polyhedrons. How can I do that? I know the x,y,z, coordinates of each vertex and also the triangles list that I use to draw each polyhedron. Any help would be very very appreciated. With regards, Dimitris
9. ## Intersection of two 3D Polyhedrons

Thanks for the reply - I will try to implement your algorithm
10. ## Save a win32 project window as an image

Thank you for the answer, it really helps me. But I am afraid that I can't find exactly in which part of the code I have to change just to select my projects window (that is the active window) and not the whole screen. Thank you in advance
11. ## Intersection of two 3D Polyhedrons

Sorry for the late answer, yes the polyhedra are convex
12. ## Save a win32 project window as an image

Hello to all users, I am using visual studio 2010 and I have a simple win32 project (that reads a polyhedron from a file and shows it). My problem is that in that project I want to save the opened window (that shows the polyhedron) as an image. Or to say it more general, how can I save the opened window as an image (for example as jpp, bmp etch)? Attention, that I use win32 project, NOT windows form application. Best regards, Dimitris
13. ## Collinear 3d Points

Thanks for the replies-They are really useful
14. ## Collinear 3d Points

Hello to all members, I would like to ask something very simple. Given three Points (x1,y1,z1) (x2,y2,z2) (x3,y3,z3) When these points are collinear?
15. ## Problem with <msclr/marshal.h>

Hello to all users, I'm writing a Windows From Application project in visual studio 2010. My application can run normally to other computers, but when I add #include <msclr/marshal.h> then it doesn't run in other computers, although it runs perfectly in mine computer. What can I do for that matter? Is there any solution? Any help will be appreciated! With regard, Dimitris