Python mayavi: Adding points to a 3d scatter plot -

i'm writing python application simulate motion of particles in 3-space. i'd plot positions each step, updating plot app runs, keeping past positions on plot.

i'd mayavi, far can tell, 1 cannot add points existing scatter plot, must add points in 1 go. not want. want add few points @ time without having keep past points in memory redraw them @ each step.

the function i've been looking @ plot3d().

http://docs.enthought.com/mayavi/mayavi/auto/mlab_helper_functions.html#mayavi.mlab.points3d

any ideas on how want python mayavi? there python 3d plotting package want?

suppose named object :

mypoints = mlab.points3d(...)  

you can access @ stage current traits :

mypoint_data = mypoints.mlab_source.get(['points'])['points'] 

and add whatever want (e.g.: want add point 0,0,1:

mypoint_data = np.vstack((mypoint_data, np.array([[0,0,1]]))) mypoints.mlab_source.set(points=mypoint_data) 

if have scalars need updated using keyword 'scalars'

myscalar_data = mypoints.mlab_source.get(['points'])['points'] ... mypoints.mlab_source.set(myscalar_data) 

hope helps, , works.