picogl.ui.backend.qt.base

GLBase Qt Widget

Classes

MvpParameters	MVP Parameters
CameraParameters	camera parameters
GLBase	OpenGL Qt Widget

Module Contents

class picogl.ui.backend.qt.base.MvpParameters

MVP Parameters

rotation_x = None

rotation_y = None

pan_x = None

pan_y = None

class picogl.ui.backend.qt.base.CameraParameters

camera parameters

rotation_x_axis = None

rotation_y_axis = None

rotation_z_axis = None

translation_x_axis = None

translation_y_axis = None

translation_zoom = None

rotation: numpy.ndarray

translation: numpy.ndarray

class picogl.ui.backend.qt.base.GLBase(parent: PySide6.QtWidgets.QWidget = None, gl_use_legacy: bool = True)

Bases: PySide6.QtOpenGLWidgets.QOpenGLWidget, PySide6.QtGui.QOpenGLFunctions

OpenGL Qt Widget

aspect_ratio = None

gl_use_legacy = True

last_mouse_pos = None

zoom_value = None

mvp_parameters

camera_parameters

initializeGL()

initializeGL

Initializes the OpenGL rendering context for this widget.

This includes: - Enabling depth testing and multisampling - Configuring blending for transparency - Initializing lighting and material properties - Setting the viewport to match widget size - Clearing any legacy buffer state

Called automatically by Qt when the GL context is first created.

resizeGL(w: int, h: int) → None

resizeGL(w, h)

Handles resizing the OpenGL viewport and updates the projection matrix.

Parameters:

• w – int - New width of the OpenGL widget

• h – int - New height of the OpenGL widget

update_mvp() → None

Update model-view-projection matrix.

paintGL()

paintGL

Returns:

None

OpenGL rendering entry point. Calls the appropriate rendering method based g. Modern OpenGL rendering entry point.

mousePressEvent(event: PySide6.QtGui.QMouseEvent) → None

mousePressEvent

Parameters:

event – QMouseEvent

Handle mouse press events, including atom picking and coordinate un-projection.

mouseMoveEvent(event: PySide6.QtGui.QMouseEvent) → None

mouseMoveEvent

Parameters:

event – QMouseEvent

Handle mouse movement for X/Y axis rotation.

wheelEvent(event: PySide6.QtGui.QWheelEvent) → None

wheelEvent

Parameters:

event – QWheelEvent

Returns:

None

Sets zoom level

mouseReleaseEvent(event: PySide6.QtGui.QMouseEvent) → None

mouseReleaseEvent

Parameters:

event – QMouseEvent

Returns:

None

abstract _compute_clicked_position(x: int, y: int, z: int, viewport: numpy.ndarray) → numpy.ndarray | None

_compute_clicked_position

Parameters:

• x – int

• y – int

• z – int

• viewport – np.ndarray

Returns:

np.ndarray or None

_get_viewport() → numpy.ndarray

_get_viewport

Returns:

np.ndarray: Array containing viewport dimensions.

Retrieve the current OpenGL viewport dimensions.

_apply_camera_rotation(dx: float, dy: float) → None

_apply_camera_rotation

Parameters:

• dx – float

• dy – float

Returns:

None

Apply delta rotation based on mouse movement

_emit_rotation_feedback()