pyviblib.gui.rendering

Module for 3D rendering implemented with VTK

Classes

BaseNode

base class for 3D objects used in PyVib2

AtomNode

atoms

BondNode

bonds

VibratingAtomNode

vibrational motion on atoms

TriangleNode

triangle

ScalarSphereNode

sphere whose size is dependent on scalar a value

TextFollowerNode

text which follows a camera

Functions

create_sphere()

create a sphere

create_cylinder()

create a cylinder

orient_actor()

orientate an actor in a certain direction

Author:Maxim Fedorovsky

pyviblib.gui.rendering.create_sphere(r, pos, resolution, start_theta=0.0, end_theta=360.0, start_phi=0.0, end_phi=180.0)

Create a sphere.

Parameters:

• r – radius
• pos – position (null-based array)
• resolution – number of points in the longitude and latitude directions
• start_theta – the starting longitude angle
• end_theta – the ending longitude angle
• start_phi – the starting latitude angle
• end_phi – the ending latitude angle

See also

• http://www.vtk.org/doc/nightly/html/classvtkSphereSource.html
• http://www.vtk.org/doc/nightly/html/classvtkPolyDataMapper.html
• http://www.vtk.org/doc/nightly/html/classvtkActor.html

Returns:the sphere source and sphere actor

pyviblib.gui.rendering.create_cylinder(c, r, height, resolution)

Create a cylinder.

Parameters:

• c – cylinder center (null-based array)
• r – radius
• height – height
• resolution – the number of facets used to define the cylinder

See also

• http://www.vtk.org/doc/release/4.0/html/classvtkCylinderSource.html
• http://www.vtk.org/doc/nightly/html/classvtkPolyDataMapper.html
• http://www.vtk.org/doc/nightly/html/classvtkActor.html

Returns:the cylinder source and cylinder actor

pyviblib.gui.rendering.orient_actor(actor, dir_vector)

Orientate an actor in a cerain direction.

Parameter:dir_vector – direction of the actor(zerp-based array)

See also

http://www.vtk.org/doc/release/4.0/html/classvtkGeneralTransform.html#a8