Hi Ariel, As a general rule, I would not advise scripting with the style that you are employing, i.e. manipulating the pipeline as a tree. This pattern is very useful if you are writting an application that control the full state of the pipeline, and the lifecycle of the objects, but when writing for an interactive scripting environment, where figures and objects come and go, it give rise to the problems that you are encountering.
Specifically, the following line: > poly_data_normals = engine.scenes[0].children[0].children[0] is fragile, as it relies on the exact ordering of the pipeline tree. Let me try and rewrite the code that you have sent us the way that I would write it personally. I may get things wrong, as you haven't sent us a fully executable snippet. ---------------------------------------------------------- from mayavi import mlab as maya figure = maya.figure() # Plot some stuff in the figure: tm = maya.triangular_mesh(x_plot, y_plot, z_plot, faces, scalars=scalars, colormap=cmap, figure=figure) module_manager = tm.parent module_manager.scalar_lut_manager.data_range = np.array([vmin, vmax]) ---------------------------------------------------------- You probably got this code from the record feature. Unfortunately, the code generator can only generate such code, that depends on the structure of the pipeline, as it does not know the origin of the object. For robustness it should be rewritten a bit Note that if all that you want is to set the vmin and vmax of the triangular mesh, you can achieve that by using the vmin and vmax keyword arguments of triangular_mesh. Hope this helps, Gaël On Fri, Nov 16, 2012 at 01:21:40PM -0800, Ariel Rokem wrote: > My code looks something like this: > ---------------------------------------------------------- > from mayavi import mlab as maya > import mayavi.tools as maya_tools > EM = maya_tools.engine_manager.EngineManager() > engine = EM.new_engine() > figure = maya.figure(engine) > # Plot some stuff in the figure: > tm = maya.triangular_mesh(x_plot, y_plot, z_plot, faces, scalars=scalars, > colormap=cmap, figure=figure) > poly_data_normals = engine.scenes[0].children[0].children[0] > module_manager = poly_data_normals.children[0] > module_manager.scalar_lut_manager.data_range = np.array([vmin, vmax]) > ---------------------------------------------------------- ------------------------------------------------------------------------------ Monitor your physical, virtual and cloud infrastructure from a single web console. Get in-depth insight into apps, servers, databases, vmware, SAP, cloud infrastructure, etc. Download 30-day Free Trial. Pricing starts from $795 for 25 servers or applications! http://p.sf.net/sfu/zoho_dev2dev_nov _______________________________________________ MayaVi-users mailing list MayaVi-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/mayavi-users
