picogl.backend.legacy.core.camera.matrix

This module provides a function to update the OpenGL modelview matrix based on camera parameters such as translation (panning), rotation (orbit angles), and zoom. It is typically used in interactive 3D applications to reflect user-controlled camera movements in the rendering pipeline.

Dependencies:

  • numpy

  • PyOpenGL

Functions:

Parameters:

  • translation: NumPy array of shape (2,) representing X and Y panning.

  • rotation: NumPy array of shape (3,) representing rotation angles in degrees around X, Y, and Z axes.

  • zoom_value: Float representing zoom along the Z-axis.

Usage Example:

update_camera_matrix(
    translation=np.array([0.1, -0.2]),
    rotation=np.array([30.0, 45.0, 0.0]),
    zoom_value=-5.0
)

Functions

update_camera_matrix(→ None)

update_camera_matrix

Module Contents

picogl.backend.legacy.core.camera.matrix.update_camera_matrix(translation: numpy.ndarray, rotation: numpy.ndarray, zoom_value: float) → None[source]

update_camera_matrix

Parameters:

  • translation – np.ndarray of shape (2,) - [x_pan, y_pan]

  • rotation – np.ndarray of shape (3,) - [x_rot, y_rot, z_rot] in degrees

  • zoom_value – float - zoom along z-axis

Updates the OpenGL modelview matrix using translation, rotation, and zoom values.