cameracontroller.h File Reference

Camera state and projection / view / model matrix computation for single- and multi-view layouts. More...

#include "../disp3D_global.h"
#include "core/viewstate.h"
#include <QMatrix4x4>
#include <QQuaternion>
#include <QVector3D>
#include <QVector2D>
#include <QPoint>
#include <QSize>

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Classes
struct	CameraResult
	Computed camera matrices (projection, view, model) and vectors for a single viewport. More...
class	CameraController
	Camera state and matrix computation. More...

Detailed Description

Camera state and projection / view / model matrix computation for single- and multi-view layouts.

SPDX-License-Identifier: BSD-3-Clause Copyright (c) 2026 MNE-CPP Authors

Author

Christoph Dinh chris.nosp@m.toph.nosp@m..dinh.nosp@m.@mne.nosp@m.-cpp..nosp@m.org

Since

2.0.0

Date

March 2026

CameraController is widget-agnostic: it takes the visible scene centroid + extent and a per-pane SubView and produces the CameraResult bundle (projection, view, model, eye position, look-at and up vector) consumed by BrainRenderer.

It also encodes the mouse-interaction conventions used everywhere in disp3D: left-drag rotates via quaternion accumulation, wheel zooms by exponential scaling around the scene centre, middle-drag pans by projecting screen-space deltas into the camera's local right / up basis, and the multi-view perspective pane orbits while the orthographic Top / Left / Front panes only pan + zoom.

Definition in file cameracontroller.h.