scenemodifier.cpp Example File

basicshapes-cpp/scenemodifier.cpp
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#include "scenemodifier.h"

#include <QtCore/QDebug>

SceneModifier::SceneModifier(Qt3D::QEntity *rootEntity)
    : m_rootEntity(rootEntity)
{

    // Torus shape data
    m_torus = new Qt3D::QTorusMesh();
    m_torus->setRadius(1.0f);
    m_torus->setMinorRadius(0.4f);
    m_torus->setRings(100);
    m_torus->setSlices(20);

    // TorusMesh Transform
    Qt3D::QScaleTransform *torusScale = new Qt3D::QScaleTransform();
    Qt3D::QTranslateTransform *torusTranslation = new Qt3D::QTranslateTransform();
    Qt3D::QRotateTransform *torusRotation = new Qt3D::QRotateTransform();
    Qt3D::QTransform *torusTransforms = new Qt3D::QTransform();

    torusScale->setScale3D(QVector3D(2.0f, 2.0f, 2.0f));
    torusTranslation->setTranslation(QVector3D(1.7f, 1.7f, 0.0f));
    torusRotation->setAngleDeg(25.0f);
    torusRotation->setAxis(QVector3D(0, 1, 0));

    torusTransforms->addTransform(torusRotation);
    torusTransforms->addTransform(torusTranslation);
    torusTransforms->addTransform(torusScale);

    Qt3D::QPhongMaterial *torusMaterial = new Qt3D::QPhongMaterial();
    torusMaterial->setDiffuse(QColor(QRgb(0xbeb32b)));

    // Torus
    m_torusEntity = new Qt3D::QEntity(m_rootEntity);
    m_torusEntity->addComponent(m_torus);
    m_torusEntity->addComponent(torusMaterial);
    m_torusEntity->addComponent(torusTransforms);

    // Cylinder shape data
    Qt3D::QCylinderMesh *cylinder = new Qt3D::QCylinderMesh();
    cylinder->setRadius(1);
    cylinder->setLength(3);
    cylinder->setRings(100);
    cylinder->setSlices(20);

    // CylinderMesh Transform
    Qt3D::QScaleTransform *cylinderScale = new Qt3D::QScaleTransform();
    Qt3D::QRotateTransform *cylinderRotation = new Qt3D::QRotateTransform();
    Qt3D::QTranslateTransform *cylinderTranslation = new Qt3D::QTranslateTransform();
    Qt3D::QTransform *cylinderTransforms = new Qt3D::QTransform();

    cylinderScale->setScale3D(QVector3D(1.5f, 1.5f, 1.5f));
    cylinderTranslation->setTranslation(QVector3D(-2.6f, 2.4f, -1.5));
    cylinderRotation->setAngleDeg(45.0f);
    cylinderRotation->setAxis(QVector3D(1, 0, 0));

    cylinderTransforms->addTransform(cylinderTranslation);
    cylinderTransforms->addTransform(cylinderRotation);
    cylinderTransforms->addTransform(cylinderScale);

    Qt3D::QPhongMaterial *cylinderMaterial = new Qt3D::QPhongMaterial();
    cylinderMaterial->setDiffuse(QColor(QRgb(0x928327)));

    // Cylinder
    m_cylinderEntity = new Qt3D::QEntity(m_rootEntity);
    m_cylinderEntity->addComponent(cylinder);
    m_cylinderEntity->addComponent(cylinderMaterial);
    m_cylinderEntity->addComponent(cylinderTransforms);

    // Cuboid shape data
    Qt3D::QCuboidMesh *cuboid = new Qt3D::QCuboidMesh();

    // CuboidMesh Transform
    Qt3D::QScaleTransform *cuboidScale = new Qt3D::QScaleTransform();
    Qt3D::QTranslateTransform *cuboidTranslation = new Qt3D::QTranslateTransform();
    Qt3D::QTransform *cuboidTransforms = new Qt3D::QTransform();

    cuboidScale->setScale3D(QVector3D(4.0f, 4.0f, 4.0f));
    cuboidTranslation->setTranslation(QVector3D(0.9f, -0.9f, 0.0f));

    cuboidTransforms->addTransform(cuboidTranslation);
    cuboidTransforms->addTransform(cuboidScale);

    Qt3D::QPhongMaterial *cuboidMaterial = new Qt3D::QPhongMaterial();
    cuboidMaterial->setDiffuse(QColor(QRgb(0x665423)));

    //Cuboid
    m_cuboidEntity = new Qt3D::QEntity(m_rootEntity);
    m_cuboidEntity->addComponent(cuboid);
    m_cuboidEntity->addComponent(cuboidMaterial);
    m_cuboidEntity->addComponent(cuboidTransforms);

    // Sphere shape data
    Qt3D::QSphereMesh *sphereMesh = new Qt3D::QSphereMesh();
    sphereMesh->setRings(20);
    sphereMesh->setSlices(20);
    sphereMesh->setRadius(2);

    // Sphere mesh transform
    Qt3D::QScaleTransform *sphereScale = new Qt3D::QScaleTransform();
    Qt3D::QTranslateTransform *sphereTranslation = new Qt3D::QTranslateTransform();
    Qt3D::QTransform *sphereTransforms = new Qt3D::QTransform();

    sphereScale->setScale3D(QVector3D(1.3f, 1.3f, 1.3f));
    sphereTranslation->setTranslation(QVector3D(-2.9f, -2.9f, 0.0f));

    sphereTransforms->addTransform(sphereTranslation);
    sphereTransforms->addTransform(sphereScale);

    Qt3D::QPhongMaterial *sphereMaterial = new Qt3D::QPhongMaterial();
    sphereMaterial->setDiffuse(QColor(QRgb(0xa69929)));

    // Sphere
    m_sphereEntity = new Qt3D::QEntity(m_rootEntity);
    m_sphereEntity->addComponent(sphereMesh);
    m_sphereEntity->addComponent(sphereMaterial);
    m_sphereEntity->addComponent(sphereTransforms);
}

SceneModifier::~SceneModifier()
{
}

void SceneModifier::enableTorus(bool enabled)
{
    m_torusEntity->setParent(enabled ? m_rootEntity : Q_NULLPTR);
}

void SceneModifier::enableCylinder(bool enabled)
{
    m_cylinderEntity->setParent(enabled ? m_rootEntity : Q_NULLPTR);
}

void SceneModifier::enableCuboid(bool enabled)
{
    m_cuboidEntity->setParent(enabled ? m_rootEntity : Q_NULLPTR);
}

void SceneModifier::enableSphere(bool enabled)
{
    m_sphereEntity->setParent(enabled ? m_rootEntity : Q_NULLPTR);
}

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