Hi Pierre, The hand data-set you refer to is a surface, not volume data. I guess you could imagine making a volume data set by filling inside the surface with ones and outside with zero. Chimera can't do that from a VRML surface, can't do much of anything with VRML. It would seem better to start from medical imaging volume data. That data is usually in DICOM format. For example, http://pubimage.hcuge.ch:8080/ There are various converters from DICOM to say TIFF, JPEG, or PNG image stacks. I have not used any of them. Chimera can read an image stack and write an MRC file, but it can't read DICOM format. I'm interested in allowing Chimera to directly read DICOM data and there is a pydicom Python module that does the work of extracting the image data http://code.google.com/p/pydicom/wiki/GettingStarted I don't expect to have time to turn that into a Chimera file reader any time soon. Tom -------- Original Message -------- Subject: [Chimera-users] wrl to spider or mrc format From: Pierre-Damien COUREUX To: chimera-users@cgl.ucsf.edu Date: 7/23/09 8:39 AM
Hello everyone, I'm trying to use this skeleton hand (http://www.cc.gatech.edu/projects/large_models/hand.html) as a teaching tool in electron microscopy. I'm only able to open the file in the wrl format and I was wondering if there is an easy way in chimera to convert that file into a density spider or mrc format. So I can import it and make projections in spider for example. I tried to find on the web a free procedure to convert that wrl, without any success. If you have a clear protocol about how to do that, that would be great Thank you in advance for your help Pierre-Damien COUREUX
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