VisionEgg.Core.Projection

Package VisionEgg :: Module Core :: Class Projection

Class Projection

         object --+    
                  |    
ClassWithParameters --+
                      |
                     Projection

Known Subclasses:: OrthographicProjection, OrthographicProjectionNoZClip, PerspectiveProjection, SimplePerspectiveProjection

Converts stimulus coordinates to viewport coordinates.

This is an abstract base class which should be subclassed for
actual use.

This class is largely convenience for using OpenGL's
PROJECTION_MATRIX.


Parameters
==========
matrix -- matrix specifying projection (Sequence4x4 of Real)
          Default: [[1 0 0 0]
                    [0 1 0 0]
                    [0 0 1 0]
                    [0 0 0 1]]

Method Summary
	`__init__(self, **kw)` Create self.parameters and set values.
	`clip_2_norm_device(self, clip_coords_vertex)` Transform clip coordinates to normalized device coordinates...
	`eye_2_clip(self, eye_coords_vertex)` Transform eye coordinates to clip coordinates...
	`eye_2_norm_device(self, eye_coords_vertex)` Transform eye coordinates to normalized device coordinates...
	`get_matrix(self)`
	`look_at(self, eye, center, up)`
	`push_and_set_gl_projection(self)` Set the OpenGL projection matrix, pushing current projection matrix to stack.
	`rotate(self, angle_degrees, x, y, z)` Compose a rotation and set the OpenGL projection matrix.
	`scale(self, x, y, z)` Compose a rotation and set the OpenGL projection matrix.
	`set_gl_projection(self)` Set the OpenGL projection matrix.
	`stateless_rotate(self, angle_degrees, x, y, z)` Compose a rotation without changing OpenGL state.
	`stateless_scale(self, x, y, z)` Compose a rotation without changing OpenGL state.
	`stateless_translate(self, x, y, z)` Compose a translation without changing OpenGL state.
	`translate(self, x, y, z)` Compose a translation and set the OpenGL projection matrix.
Inherited from ClassWithParameters
	`get_specified_type(self, parameter_name)`
	`is_constant_parameter(self, parameter_name)`
	`set(self, **kw)` Set a parameter with type-checked value This is the slow but safe way to set parameters.
	`verify_parameters(self)` Perform type check on all parameters...
Inherited from object
	`__delattr__(...)` x.__delattr__('name') <==> del x.name...
	`__getattribute__(...)` x.__getattribute__('name') <==> x.name...
	`__hash__(x)` x.__hash__() <==> hash(x)...
	`__reduce__(...)` helper for pickle...
	`__reduce_ex__(...)` helper for pickle...
	`__repr__(x)` x.__repr__() <==> repr(x)...
	`__setattr__(...)` x.__setattr__('name', value) <==> x.name = value...
	`__str__(x)` x.__str__() <==> str(x)...
Inherited from type
	`__new__(T, S, ...)` T.__new__(S, ...) -> a new object with type S, a subtype of T...

Class Variable Summary
`tuple`	`__slots__` = `('parameters', 'constant_parameters')`
`member_descriptor`	`constant_parameters` = `<member 'constant_parameters' of '...`
`member_descriptor`	`parameters` = `<member 'parameters' of 'Projection' object...`
`ParameterDefinition`	`parameters_and_defaults` = `{'matrix': (array([[1, 0, 0, 0...`
Inherited from ClassWithParameters
`ParameterDefinition`	`constant_parameters_and_defaults` = `{}`

Method Details

init(self, **kw)
(Constructor)

Create self.parameters and set values.

Overrides:: VisionEgg.ClassWithParameters.__init__ (inherited documentation)

clip_2_norm_device(self, clip_coords_vertex)

Transform clip coordinates to normalized device coordinates

eye_2_clip(self, eye_coords_vertex)

Transform eye coordinates to clip coordinates

eye_2_norm_device(self, eye_coords_vertex)

Transform eye coordinates to normalized device coordinates

push_and_set_gl_projection(self)

Set the OpenGL projection matrix, pushing current projection matrix to stack.

rotate(self, angle_degrees, x, y, z)

Compose a rotation and set the OpenGL projection matrix.

scale(self, x, y, z)

Compose a rotation and set the OpenGL projection matrix.

set_gl_projection(self)

Set the OpenGL projection matrix.

stateless_rotate(self, angle_degrees, x, y, z)

Compose a rotation without changing OpenGL state.

stateless_scale(self, x, y, z)

Compose a rotation without changing OpenGL state.

stateless_translate(self, x, y, z)

Compose a translation without changing OpenGL state.

translate(self, x, y, z)

Compose a translation and set the OpenGL projection matrix.

Class Variable Details

slots

Type:: tuple
Value:: ('parameters', 'constant_parameters')

constant_parameters

Type:: member_descriptor
Value:: <member 'constant_parameters' of 'Projection' objects>

parameters

Type:: member_descriptor
Value:: <member 'parameters' of 'Projection' objects>

parameters_and_defaults

Type:: ParameterDefinition
Value:: {'matrix': (array([[1, 0, 0, 0], [0, 1, 0, 0], [0, 0, 1, 0], [0, 0, 0, 1]]), <VisionEgg.ParameterTypes.Sequence4x4 object at\ 0x40c1b34c>, 'matrix specifying projection')}

Generated by Epydoc 2.0 on Fri Sep 19 18:29:39 2003

http://epydoc.sf.net

Class Projection

__init__(self, **kw) (Constructor)

clip_2_norm_device(self, clip_coords_vertex)

eye_2_clip(self, eye_coords_vertex)

eye_2_norm_device(self, eye_coords_vertex)

push_and_set_gl_projection(self)

rotate(self, angle_degrees, x, y, z)

scale(self, x, y, z)

set_gl_projection(self)

stateless_rotate(self, angle_degrees, x, y, z)

stateless_scale(self, x, y, z)

stateless_translate(self, x, y, z)

translate(self, x, y, z)

__slots__

constant_parameters

parameters

parameters_and_defaults

init(self, **kw)
(Constructor)

slots