Hi Alexander,

By "particle" do you mean an atomic molecular model (e.g. PDB file)? Do you already know the desired rotation and translation for each particle? Or do you want to calculate those fits? What you want is probably possible but I need more details to give specific advice. Chimera is not memory efficient with its molecular models, so if your particles are proteins with several thousand atoms and you want to load 300 of them, you will need a lot of memory (~2 Kbytes / atom).

Tom

Dear colleagues,

I would like to fit about 300 particles inside of the map according to it coordinates (X,Y,Z) what I have found before. Is it possible to make this procedure automatically, such that program would load one particle, shift it according to its coordinates (change pixel size if necessary) and so on?

Thank you in advance,

Alexander