orbittransformcontroller.cpp Example File

simple-cpp/orbittransformcontroller.cpp
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#include "orbittransformcontroller.h" #include <Qt3DCore/qtransform.h> OrbitTransformController::OrbitTransformController(QObject *parent) : QObject(parent) , m_target(nullptr) , m_matrix() , m_radius(1.0f) , m_angle(0.0f) { } void OrbitTransformController::setTarget(Qt3DCore::QTransform *target) { if (m_target != target) { m_target = target; emit targetChanged(); } } Qt3DCore::QTransform *OrbitTransformController::target() const { return m_target; } void OrbitTransformController::setRadius(float radius) { if (!qFuzzyCompare(radius, m_radius)) { m_radius = radius; updateMatrix(); emit radiusChanged(); } } float OrbitTransformController::radius() const { return m_radius; } void OrbitTransformController::setAngle(float angle) { if (!qFuzzyCompare(angle, m_angle)) { m_angle = angle; updateMatrix(); emit angleChanged(); } } float OrbitTransformController::angle() const { return m_angle; } void OrbitTransformController::updateMatrix() { m_matrix.setToIdentity(); m_matrix.rotate(m_angle, QVector3D(0.0f, 1.0f, 0.0f)); m_matrix.translate(m_radius, 0.0f, 0.0f); m_target->setMatrix(m_matrix); }