v_sim.GlMatrix¶

Fields¶

Name	Type	Access	Description
c	[`float`]	r/w	the coefficients.

Methods¶

class	`modelize` (camera)
class	`project` (camera, width, height)
class	`vectorProd` (v, matrix, u)
	`inv` (m)
	`matrixProd` (m1, m2)
	`rotate` (angle, dir)
	`scale` (scale)
	`setIdentity` ()
	`setOrtho` (width, height)
	`translate` (trans)
	`transpose` ()

Details¶

class v_sim.GlMatrix¶

A 4x4 matrix to be used in OpenGL.

classmethod modelize(camera)¶

Parameters:: camera (v_sim.GlCamera) – a v_sim.GlCamera object.
Returns:: a location to store a v_sim.GlMatrix.
Return type:: M: v_sim.GlMatrix

Compute the modelview matrix associated to the given camera. The up axis and the eye position are updated by this call.

Added in version 3.9.

classmethod project(camera, width, height)¶

Parameters:

camera (v_sim.GlCamera) – a v_sim.GlCamera object.
width (int) – a width.
height (int) – a height.

Returns:

a location to store a v_sim.GlMatrix.

Return type:

P: v_sim.GlMatrix

Compute the projection matrix associated to the camera. width and height represents the size of the projection plane.

Added in version 3.9.

classmethod vectorProd(v, matrix, u)¶

Parameters:

v (float) – a GL vector location
matrix (v_sim.GlMatrix) – a GL matrix
u (float) – a GL vector

4x4 matrix product with a vector.

Added in version 3.9.

inv(m)¶

Parameters:: m (v_sim.GlMatrix) – a v_sim.GlMatrix

Compute the inverse of m in self.

Added in version 3.9.

matrixProd(m1, m2)¶

Parameters:

m1 (v_sim.GlMatrix) – a v_sim.GlMatrix
m2 (v_sim.GlMatrix) – a v_sim.GlMatrix

Compute the product of matrix m1 with matrix m2 and store the result in self

Added in version 3.9.

rotate(angle, dir)¶

Parameters:

angle (float) – an angle in degrees
dir (v_sim.XyzDir) – an axis.

Modify self to include a rotation along dir of angle.

Added in version 3.9.

scale(scale)¶

Parameters:: scale ([float]) – scaling vector.

Modify self to include a scaling in the three direction given by scale.

Added in version 3.9.

setIdentity()¶: Set self to the identity matrix.

Added in version 3.9.

setOrtho(width, height)¶

Parameters:

width (int) – a width
height (int) – a height

Construct a projection matrix corresponding to the 2D rectangle of width per height pixels.

Added in version 3.9.

translate(trans)¶

Parameters:: trans ([float]) – translation in cartesian coordinates.

Add trans to self. So the result in multiplying self to a vector, will first apply trans to the vector and then apply self.

Added in version 3.9.

transpose()¶: Transpose self in place.

Added in version 3.9.