main.qml Example File

qmlsurface/qml/qmlsurface/main.qml
/****************************************************************************
**
** Copyright (C) 2016 The Qt Company Ltd.
** Contact: https://www.qt.io/licensing/
**
** This file is part of the Qt Data Visualization module of the Qt Toolkit.
**
** $QT_BEGIN_LICENSE:GPL$
** Commercial License Usage
** Licensees holding valid commercial Qt licenses may use this file in
** accordance with the commercial license agreement provided with the
** Software or, alternatively, in accordance with the terms contained in
** a written agreement between you and The Qt Company. For licensing terms
** and conditions see https://www.qt.io/terms-conditions. For further
** information use the contact form at https://www.qt.io/contact-us.
**
** GNU General Public License Usage
** Alternatively, this file may be used under the terms of the GNU
** General Public License version 3 or (at your option) any later version
** approved by the KDE Free Qt Foundation. The licenses are as published by
** the Free Software Foundation and appearing in the file LICENSE.GPL3
** included in the packaging of this file. Please review the following
** information to ensure the GNU General Public License requirements will
** be met: https://www.gnu.org/licenses/gpl-3.0.html.
**
** $QT_END_LICENSE$
**
****************************************************************************/

import QtQuick 2.1
import QtQuick.Layouts 1.0
import QtDataVisualization 1.0
import "."

Rectangle {
    id: mainview
    width: 1024
    height: 768
    color: surfacePlot.theme.windowColor

    Data {
        id: surfaceData
    }

    Item {
        id: surfaceView
        width: mainview.width
        height: mainview.height
        anchors.top: mainview.top
        anchors.left: mainview.left

        ColorGradient {
            id: surfaceGradient
            ColorGradientStop { position: 0.0; color: "darkslategray" }
            ColorGradientStop { id: middleGradient; position: 0.25; color: "peru" }
            ColorGradientStop { position: 1.0; color: "red" }
        }

        Surface3D {
            id: surfacePlot
            width: surfaceView.width
            height: surfaceView.height
            theme: Theme3D {
                type: Theme3D.ThemeStoneMoss
                font.family: "STCaiyun"
                font.pointSize: 35
                colorStyle: Theme3D.ColorStyleRangeGradient
                baseGradients: [surfaceGradient]
            }
            shadowQuality: AbstractGraph3D.ShadowQualityMedium
            selectionMode: AbstractGraph3D.SelectionSlice | AbstractGraph3D.SelectionItemAndRow
            scene.activeCamera.cameraPreset: Camera3D.CameraPresetIsometricLeft
            axisY.min: 0.0
            axisY.max: 500.0
            axisX.segmentCount: 10
            axisX.subSegmentCount: 2
            axisX.labelFormat: "%i"
            axisZ.segmentCount: 10
            axisZ.subSegmentCount: 2
            axisZ.labelFormat: "%i"
            axisY.segmentCount: 5
            axisY.subSegmentCount: 2
            axisY.labelFormat: "%i"
            axisY.title: "Height"
            axisX.title: "Latitude"
            axisZ.title: "Longitude"

            Surface3DSeries {
                id: surfaceSeries
                flatShadingEnabled: false
                drawMode: Surface3DSeries.DrawSurface

                ItemModelSurfaceDataProxy {
                    itemModel: surfaceData.model
                    rowRole: "longitude"
                    columnRole: "latitude"
                    yPosRole: "height"
                }
                onDrawModeChanged: checkState()
            }
            Surface3DSeries {
                id: heightSeries
                flatShadingEnabled: false
                drawMode: Surface3DSeries.DrawSurface
                visible: false

                HeightMapSurfaceDataProxy {
                    heightMapFile: ":/heightmaps/image"
                    // We don't want the default data values set by heightmap proxy.
                    minZValue: 30
                    maxZValue: 60
                    minXValue: 67
                    maxXValue: 97
                }

                onDrawModeChanged: checkState()
            }
        }
    }

    RowLayout {
        id: buttonLayout
        anchors.top: parent.top
        anchors.left: parent.left
        anchors.right: parent.right
        opacity: 0.5

        NewButton {
            id: surfaceGridToggle
            Layout.fillWidth: true
            Layout.fillHeight: true
            text: "Show Surface Grid"
            onClicked: {
                if (surfaceSeries.drawMode & Surface3DSeries.DrawWireframe) {
                    surfaceSeries.drawMode &= ~Surface3DSeries.DrawWireframe;
                    heightSeries.drawMode &= ~Surface3DSeries.DrawWireframe;
                } else {
                    surfaceSeries.drawMode |= Surface3DSeries.DrawWireframe;
                    heightSeries.drawMode |= Surface3DSeries.DrawWireframe;
                }
            }
        }

        NewButton {
            id: surfaceToggle
            Layout.fillWidth: true
            Layout.fillHeight: true
            text: "Hide Surface"
            onClicked: {
                if (surfaceSeries.drawMode & Surface3DSeries.DrawSurface) {
                    surfaceSeries.drawMode &= ~Surface3DSeries.DrawSurface;
                    heightSeries.drawMode &= ~Surface3DSeries.DrawSurface;
                } else {
                    surfaceSeries.drawMode |= Surface3DSeries.DrawSurface;
                    heightSeries.drawMode |= Surface3DSeries.DrawSurface;
                }
            }
        }

        NewButton {
            id: flatShadingToggle
            Layout.fillWidth: true
            Layout.fillHeight: true
            text: surfaceSeries.flatShadingSupported ? "Show Flat" : "Flat not supported"
            enabled: surfaceSeries.flatShadingSupported
            onClicked: {
                if (surfaceSeries.flatShadingEnabled === true) {
                    surfaceSeries.flatShadingEnabled = false;
                    heightSeries.flatShadingEnabled = false;
                    text = "Show Flat"
                } else {
                    surfaceSeries.flatShadingEnabled = true;
                    heightSeries.flatShadingEnabled = true;
                    text = "Show Smooth"
                }
            }
        }

        NewButton {
            id: backgroundToggle
            Layout.fillWidth: true
            Layout.fillHeight: true
            text: "Hide Background"
            onClicked: {
                if (surfacePlot.theme.backgroundEnabled === true) {
                    surfacePlot.theme.backgroundEnabled = false;
                    text = "Show Background"
                } else {
                    surfacePlot.theme.backgroundEnabled = true;
                    text = "Hide Background"
                }
            }
        }

        NewButton {
            id: gridToggle
            Layout.fillWidth: true
            Layout.fillHeight: true
            text: "Hide Grid"
            onClicked: {
                if (surfacePlot.theme.gridEnabled === true) {
                    surfacePlot.theme.gridEnabled = false;
                    text = "Show Grid"
                } else {
                    surfacePlot.theme.gridEnabled = true;
                    text = "Hide Grid"
                }
            }
        }

        NewButton {
            id: seriesToggle
            Layout.fillWidth: true
            Layout.fillHeight: true
            text: "Switch to Height Map Series"
            onClicked: {
                if (surfaceSeries.visible === false) {
                    surfacePlot.axisY.max = 500.0
                    surfaceSeries.visible = true
                    heightSeries.visible = false
                    middleGradient.position = 0.25
                    text = "Switch to Height Map Series"
                } else {
                    surfacePlot.axisY.max = 250.0
                    surfaceSeries.visible = false
                    heightSeries.visible = true
                    middleGradient.position = 0.50
                    text = "Switch to Item Model Series"
                }
            }
        }
    }

    function checkState() {
        if (surfaceSeries.drawMode & Surface3DSeries.DrawSurface)
            surfaceToggle.text = "Hide Surface"
        else
            surfaceToggle.text = "Show Surface"

        if (surfaceSeries.drawMode & Surface3DSeries.DrawWireframe)
            surfaceGridToggle.text = "Hide Surface Grid"
        else
            surfaceGridToggle.text = "Show Surface Grid"
    }
}

© 2017 The Qt Company Ltd. Documentation contributions included herein are the copyrights of their respective owners. The documentation provided herein is licensed under the terms of the GNU Free Documentation License version 1.3 as published by the Free Software Foundation. Qt and respective logos are trademarks of The Qt Company Ltd. in Finland and/or other countries worldwide. All other trademarks are property of their respective owners.