Hi Ana, Can you explain what you mean by "projecting a surface"? Is the result a flat triangulated surface lying entirely in a plane? or a curve in a plane that is the projected boundary? Chimera doesn't do either of those but a Python script could easily do the former, the latter being a more complex computational geometry problem. Do you have a file format in mind for saving that result? Will the formats that Chimera can export a surface in (x3d, vrml, grasp, ...) be of use to you? Tom -------- Original Message -------- Subject: Re: [Chimera-users] 2D projections From: Ana Luiza To: Thomas Goddard Date: 9/2/09 5:11 AM
Hi Thomas,
Thanks for the answer.
What I really have to do in my work is: - Build a protein surface (only the outside surface, the contour, it doesn´t matter what is inside) - Rotate this surface 360o in axis x, y and z - Take a 2D projection of the surface in each position during rotation and save it and its specific angle
I'm thinking about develop a Python script to do this with the commands: - roll (to rotate the model in axis x, y and z) - push (to save each 2D projection)
The problem is that I don´t know how to take the 2D projections during rotation.
Can you help me, please?
Thanks in advance.
Best regards, Ana Luiza.
-------- Original Message -------- Subject: Re: [Chimera-users] 2D projections From: Thomas Goddard To: chimera-users Date: 8/31/09 5:21 PM
Hi Ana,
Do you want to project volume data or a surface?
For volume data you can display a projection by using "solid" style rendering and set the transparency to 100% in the volume dialog brightness and transparency panel, and move the nodes on the volume histogram to create a linear ramp. This just provides an on-screen image that looks like a projection. Probably good to use orthographic projection too (menu Tools / Viewing Controls / Camera, projection -> orthographic) instead of perspective projection.
Chimera is not able to create a 2d volume data sets which is the exact projection, but I'd like to add that. It is on the Chimera request list (entry 58).
http://socrates2.cgl.ucsf.edu/trac/chimera/wiki/requests
Tom
-------- Original Message -------- Subject: [Chimera-users] 2D projections From: Ana Luiza To: chimera-users Date: 8/28/09 3:08 PM
Hi,
Is it possible to build 2D projections from a 3D surface in Chimera?
Thanks, Ana Luiza.