planets.qml Example File | Qt Canvas 3D (deprecated) 5.12.8

- Qt 5.12
- Qt Canvas 3D (deprecated)
- Planets Example
- planets.qml Example File
- Qt 5.12.8 Reference Documentation

# planets.qml Example File

threejs/planets/planets.qml

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     import QtQuick 2.0
     import QtCanvas3D 1.0

     import "planets.js" as GLCode

     Item {
         id: mainview
         width: 1280
         height: 768
         visible: true
         property int focusedPlanet: 100
         property int oldPlanet: 0
         property real xLookAtOffset: 0
         property real yLookAtOffset: 0
         property real zLookAtOffset: 0
         property real xCameraOffset: 0
         property real yCameraOffset: 0
         property real zCameraOffset: 0
         property real cameraNear: 0
         property int sliderLength: (width < height) ? width / 2 : height / 2
         property real textSize: (sliderLength < 320) ? (sliderLength / 20) : 16
         property real planetButtonSize: (height < 768) ? (height / 11) : 70

         NumberAnimation {
             id: lookAtOffsetAnimation
             target: mainview
             properties: "xLookAtOffset, yLookAtOffset, zLookAtOffset"
             to: 0
             easing.type: Easing.InOutQuint
             duration: 1250
         }

         NumberAnimation {
             id: cameraOffsetAnimation
             target: mainview
             properties: "xCameraOffset, yCameraOffset, zCameraOffset"
             to: 0
             easing.type: Easing.InOutQuint
             duration: 2500
         }

         Behavior on cameraNear {
             PropertyAnimation {
                 easing.type: Easing.InOutQuint
                 duration: 2500
             }
         }
         onFocusedPlanetChanged: {
             if (focusedPlanet == 100) {
                 info.opacity = 0;
                 updatePlanetInfo();
             } else {
                 updatePlanetInfo();
                 info.opacity = 0.5;
             }

             GLCode.prepareFocusedPlanetAnimation();

             lookAtOffsetAnimation.restart();
             cameraOffsetAnimation.restart();
         }
         Canvas3D {
             id: canvas3d
             anchors.fill: parent
             onInitializeGL: {
                 GLCode.initializeGL(canvas3d, eventSource, mainview);
             }
             onPaintGL: {
                 GLCode.paintGL(canvas3d);
                 fpsDisplay.fps = canvas3d.fps;
             }

             onResizeGL: {
                 GLCode.onResizeGL(canvas3d);
             }
             ControlEventSource {
                 anchors.fill: parent
                 focus: true
                 id: eventSource
             }
         }
         ListModel {
             id: planetModel

             ListElement {
                 name: "Sun"
                 radius: "109 x Earth"
                 temperature: "5 778 K"
                 orbitalPeriod: ""
                 distance: ""
                 planetImageSource: "images/sun.png"
                 planetNumber: 0
             }
             ListElement {
                 name: "Mercury"
                 radius: "0.3829 x Earth"
                 temperature: "80-700 K"
                 orbitalPeriod: "87.969 d"
                 distance: "0.387 098 AU"
                 planetImageSource: "images/mercury.png"
                 planetNumber: 1
             }
             ListElement {
                 name: "Venus"
                 radius: "0.9499 x Earth"
                 temperature: "737 K"
                 orbitalPeriod: "224.701 d"
                 distance: "0.723 327 AU"
                 planetImageSource: "images/venus.png"
                 planetNumber: 2
             }
             ListElement {
                 name: "Earth"
                 radius: "6 378.1 km"
                 temperature: "184-330 K"
                 orbitalPeriod: "365.256 d"
                 distance: "149598261 km (1 AU)"
                 planetImageSource: "images/earth.png"
                 planetNumber: 3
             }
             ListElement {
                 name: "Mars"
                 radius: "0.533 x Earth"
                 temperature: "130-308 K"
                 orbitalPeriod: "686.971 d"
                 distance: "1.523679 AU"
                 planetImageSource: "images/mars.png"
                 planetNumber: 4
             }
             ListElement {
                 name: "Jupiter"
                 radius: "11.209 x Earth"
                 temperature: "112-165 K"
                 orbitalPeriod: "4332.59 d"
                 distance: "5.204267 AU"
                 planetImageSource: "images/jupiter.png"
                 planetNumber: 5
             }
             ListElement {
                 name: "Saturn"
                 radius: "9.4492 x Earth"
                 temperature: "84-134 K"
                 orbitalPeriod: "10759.22 d"
                 distance: "9.5820172 AU"
                 planetImageSource: "images/saturn.png"
                 planetNumber: 6
             }
             ListElement {
                 name: "Uranus"
                 radius: "4.007 x Earth"
                 temperature: "49-76 K"
                 orbitalPeriod: "30687.15 d"
                 distance: "19.189253 AU"
                 planetImageSource: "images/uranus.png"
                 planetNumber: 7
             }
             ListElement {
                 name: "Neptune"
                 radius: "3.883 x Earth"
                 temperature: "55-72 K"
                 orbitalPeriod: "60190.03 d"
                 distance: "30.070900 AU"
                 planetImageSource: "images/neptune.png"
                 planetNumber: 8
             }
             ListElement {
                 name: "Solar System"
                 planetImageSource: ""
                 planetNumber: 100 // Defaults to solar system
             }
         }

         Component {
             id: planetButtonDelegate
             PlanetButton {
                 source: planetImageSource
                 text: name
                 focusPlanet: planetNumber
                 planetSelector: mainview
                 buttonSize: planetButtonSize
                 fontSize: textSize
             }
         }

         ListView {
             id: planetButtonView
             anchors.top: parent.top
             anchors.right: parent.right
             anchors.bottom: parent.bottom
             anchors.rightMargin: planetButtonSize / 5
             anchors.bottomMargin: planetButtonSize / 7
             spacing: planetButtonSize / 7
             width: planetButtonSize * 1.4
             interactive: false
             model: planetModel
             delegate: planetButtonDelegate
         }

         InfoSheet {
             id: info
             width: 400
             anchors.right: planetButtonView.left
             anchors.rightMargin: 10
             opacity: 0.5

             // Set initial information for Solar System
             planet: "Solar System"
             exampleDetails: "This example shows a 3D model of the Solar</p>" +
                             "<p>System comprised of the Sun and the eight</p>" +
                             "<p>planets orbiting the Sun.</p></br>" +
                             "<p>The example is implemented using QtCanvas3D,</p>" +
                             "<p>three.js and _RingGeometry() method from</p>" +
                             "<p>threex.planets extension.</p></br>" +
                             "<p>The textures and images used in the example</p>" +
                             "<p>are Copyright (c) by James Hastings-Trew,</p>" +
                             "<a href=\"http://planetpixelemporium.com/planets.html\">" +
                             "http://planetpixelemporium.com/planets.html</a>"
         }

         function updatePlanetInfo() {

             info.width = 200;

             if (focusedPlanet !== 100) {
                 info.planet = planetModel.get(focusedPlanet).name
                 info.radius = planetModel.get(focusedPlanet).radius
                 info.temperature = planetModel.get(focusedPlanet).temperature
                 info.orbitalPeriod = planetModel.get(focusedPlanet).orbitalPeriod
                 info.distance = planetModel.get(focusedPlanet).distance
             }
         }

         StyledSlider {
             id: speedSlider
             anchors.top: parent.top
             anchors.topMargin: 10
             anchors.horizontalCenter: parent.horizontalCenter
             width: sliderLength
             value: 0.2
             minimumValue: 0
             maximumValue: 1
             onValueChanged: GLCode.onSpeedChanged(value);
         }
         Text {
             anchors.right: speedSlider.left
             anchors.verticalCenter: speedSlider.verticalCenter
             anchors.rightMargin: 10
             font.family: "Helvetica"
             font.pixelSize: textSize
             font.weight: Font.Light
             color: "white"
             text: "Rotation Speed"
         }

         StyledSlider {
             id: scaleSlider
             anchors.bottom: parent.bottom
             anchors.bottomMargin: 10
             anchors.horizontalCenter: parent.horizontalCenter
             width: sliderLength
             value: 1200
             minimumValue: 1
             maximumValue: 2000
             onValueChanged: GLCode.setScale(value);
         }
         Text {
             anchors.right: scaleSlider.left
             anchors.verticalCenter: scaleSlider.verticalCenter
             anchors.rightMargin: 10
             font.family: "Helvetica"
             font.pixelSize: textSize
             font.weight: Font.Light
             color: "white"
             text: "Planet Size"
         }

         StyledSlider {
             id: distanceSlider
             anchors.left: parent.left
             anchors.leftMargin: 10
             anchors.verticalCenter: parent.verticalCenter
             orientation: Qt.Vertical
             height: sliderLength
             value: 1
             minimumValue: 1
             maximumValue: 2
             onValueChanged: GLCode.setCameraDistance(value);
         }
         Text {
             y: distanceSlider.y + distanceSlider.height + width + 10
             x: distanceSlider.x + 30 - textSize
             transform: Rotation {
                 origin.x: 0;
                 origin.y: 0;
                 angle: -90
             }
             font.family: "Helvetica"
             font.pixelSize: textSize
             font.weight: Font.Light
             color: "white"
             text: "Viewing Distance"
         }

         // FPS display, initially hidden, clicking will show it
         FpsDisplay {
             id: fpsDisplay
             anchors.left: parent.left
             anchors.top: parent.top
             width: 32
             height: 64
             hidden: true
         }
     }