OpenGLContext.scenegraph.quadrics

Quadratic geometry types (cone, sphere, cylinder, etc)

This implementation does not use the gluQuadric objects, it does direct creation via numpy operations.

Functions

mesh_indices( zstep , ystep , xstep = 1 )

Classes

class Cone( ConeQuadric ):

Cone geometry rendered with GLU quadratic calls

boundingVolume( self , mode = None )

Create a bounding-volume object for this node

In this case we use the AABoundingBox, despite the presence of the bounding sphere implementation. This is just a preference issue, I'm using AABoundingBox everywhere else, and want the sphere to interoperate properly.

compile( self , mode = None )

Compile this sphere for use on mode

cone( cls , height = 2.0 , radius = 1.0 , bottom = True , side = True , phi = 0.19634954084936207 , longAngle = 6.283185307179586 , top = False , cylinder = False )

Generate a VBO data-set to render a cone

class Cylinder( CylinderQuadric ):

Cylinder geometry rendered with GLU quadratic calls

boundingVolume( self , mode = None )

Create a bounding-volume object for this node

In this case we use the AABoundingBox, despite the presence of the bounding sphere implementation. This is just a preference issue, I'm using AABoundingBox everywhere else, and want the sphere to interoperate properly.

compile( self , mode = None )

Compile this sphere for use on mode

class Quadric( GeometryNode ):

Base-class for the various quadratic-type geometry classes

compile( self , mode = None )

Compile this sphere for use on mode

render( self , visible = 1 , lit = 1 , textured = 1 , transparent = 0 , mode = None )

Render the geometry

class Sphere( SphereQuadric ):

Sphere geometry rendered with GLU quadratic calls

phi

exposedField SFFloat phi 0.523598775598

_partialSphere( cls , latsteps , longsteps )

Create a partial-sphere data-set for latsteps and longsteps

returns (coordarray, indexarray)

boundingVolume( self , mode = None )

Create a bounding-volume object for this node

In this case we use the AABoundingBox, despite the presence of the bounding sphere implementation. This is just a preference issue, I'm using AABoundingBox everywhere else, and want the sphere to interoperate properly.

compile( self , mode = None )

Compile this sphere for use on mode

returns coordvbo,indexvbo,count

compileArrays( self )

Compile to arrays...

returns coordarray, indexarray

sphere( cls , phi = 0.39269908169872414 , latAngle = 3.141592653589793 , longAngle = 6.283185307179586 )

Create arrays for rendering a unit-sphere

phi: angle between points on the sphere (stacks/slices)

Note: creates 'H' type indices...

returns coordarray, indexarray