I would like to add ellipsoid, but what is the best way to test it during code writing. How can I compile just _packPredicates.cpp?
Sorry for simple questions. ______________________________ [ENG] Best Regards [GER] Mit freundlichen Grüßen [RUS] С наилучшими пожеланиями [UKR] З найкращими побажаннями Anton Gladkyy 2009/6/15 Anton Gladky <[email protected]> > Thank you very much, Vaclav for that suggestions and realization! Sure it > will be very helpful! > Later I will add some more shapes. > > I have attached the patch, which adds euclid module to the Yade. Please, > commit it. > > ______________________________ > [ENG] Best Regards > [GER] Mit freundlichen Grüßen > [RUS] С наилучшими пожеланиями > [UKR] З найкращими побажаннями > > Anton Gladkyy > > > 2009/6/13 Václav Šmilauer <[email protected]> > > >> > There is a new function for utils. Would like you to ask to check and >> > commit it. I know, that you dont like this style, but I was trying to >> > do it by your way with no success: difficult to get indexes of Z-axis >> > array. >> >> Hi, I found a better approach for this type of problems: separately >> define function that generates the grid within given part of space and >> separately have function that clips the resulting grid to the exact >> solid shape ("predicate", because it tells whether a point is inside or >> outside). For example: >> >> from yade import pack >> pack.regularHexa(pack.inSphere((0,0,4),2),radius=.1,gap=0) >> >> will return list of spheres of radius .1 hexagonaly arranged (without >> gaps) within spherical domain centered at 0,0,4 and with radius 2. >> >> I am sorry that it will probably break your older code, but it seems >> just so much more elegant and extensible. >> >> If you want to define new shape that you want to fill with spheres (e.g. >> an ellipsoid), you only have to define a new ellipsoid predicate and >> pass it to the pack.regularOrtho / pack.regularHexa functions. They ask >> the predicate for its bounding box, generate orthogonal/hexagonal grid >> and return sphere at points of the grid where the predicate was true >> (i.e. points inside the solid). >> >> If you want to define new packing type (e.g. orthogonal in plane but >> planes moved at every layer to make it denser; or even irregular >> packing, e.g. from a periodic packing that you have ready somewhere), >> you can use already existing predicates with the new one. >> >> For packing, we have ortho/hexa now, for predicates, there is sphere, >> axis-aligned box and non-aligned cylinder. It is demonstrated in >> scripts/test/regular-sphere-pack.py. >> >> Best, Vaclav >> >> >> _______________________________________________ >> Mailing list: >> https://launchpad.net/~yade-users<https://launchpad.net/%7Eyade-users> >> Post to : [email protected] >> Unsubscribe : >> https://launchpad.net/~yade-users<https://launchpad.net/%7Eyade-users> >> More help : https://help.launchpad.net/ListHelp >> > >
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