Qt 5.7 | Qt Data Visualization | Qt Quick 2 Surface Multiseries Example | main.qml Example File

Qt 5.7.1 Reference Documentation

# main.qml Example File

qmlsurfacelayers/qml/qmlsurfacelayers/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 QtQuick.Controls 1.0
      import QtQuick.Controls.Styles 1.0
      import QtDataVisualization 1.0
      import "."

      Item {
          id: mainview
          width: 1280
          height: 720

          property real fontSize: 12

          Item {
              id: surfaceView
              width: mainview.width - buttonLayout.width
              height: mainview.height
              anchors.right: mainview.right;

              ColorGradient {
                  id: layerOneGradient
                  ColorGradientStop { position: 0.0; color: "black" }
                  ColorGradientStop { position: 0.31; color: "tan" }
                  ColorGradientStop { position: 0.32; color: "green" }
                  ColorGradientStop { position: 0.40; color: "darkslategray" }
                  ColorGradientStop { position: 1.0; color: "white" }
              }

              ColorGradient {
                  id: layerTwoGradient
                  ColorGradientStop { position: 0.315; color: "blue" }
                  ColorGradientStop { position: 0.33; color: "white" }
              }

              ColorGradient {
                  id: layerThreeGradient
                  ColorGradientStop { position: 0.0; color: "red" }
                  ColorGradientStop { position: 0.15; color: "black" }
              }

              Surface3D {
                  id: surfaceLayers
                  width: surfaceView.width
                  height: surfaceView.height
                  theme: Theme3D {
                      type: Theme3D.ThemeEbony
                      font.pointSize: 35
                      colorStyle: Theme3D.ColorStyleRangeGradient
                  }
                  shadowQuality: AbstractGraph3D.ShadowQualityNone
                  selectionMode: AbstractGraph3D.SelectionRow | AbstractGraph3D.SelectionSlice
                  scene.activeCamera.cameraPreset: Camera3D.CameraPresetIsometricLeft
                  axisY.min: 20
                  axisY.max: 200
                  axisX.segmentCount: 5
                  axisX.subSegmentCount: 2
                  axisX.labelFormat: "%i"
                  axisZ.segmentCount: 5
                  axisZ.subSegmentCount: 2
                  axisZ.labelFormat: "%i"
                  axisY.segmentCount: 5
                  axisY.subSegmentCount: 2
                  axisY.labelFormat: "%i"

                  Surface3DSeries {
                      id: layerOneSeries
                      baseGradient: layerOneGradient
                      HeightMapSurfaceDataProxy {
                          heightMapFile: ":/heightmaps/layer_1.png"
                      }
                      flatShadingEnabled: false
                      drawMode: Surface3DSeries.DrawSurface
                      visible: layerOneToggle.checked // bind to checkbox state
                  }

                  Surface3DSeries {
                      id: layerTwoSeries
                      baseGradient: layerTwoGradient
                      HeightMapSurfaceDataProxy {
                          heightMapFile: ":/heightmaps/layer_2.png"
                      }
                      flatShadingEnabled: false
                      drawMode: Surface3DSeries.DrawSurface
                      visible: layerTwoToggle.checked // bind to checkbox state
                  }

                  Surface3DSeries {
                      id: layerThreeSeries
                      baseGradient: layerThreeGradient
                      HeightMapSurfaceDataProxy {
                          heightMapFile: ":/heightmaps/layer_3.png"
                      }
                      flatShadingEnabled: false
                      drawMode: Surface3DSeries.DrawSurface
                      visible: layerThreeToggle.checked // bind to checkbox state
                  }
              }
          }

          ColumnLayout {
              id: buttonLayout
              anchors.top: parent.top
              anchors.left: parent.left
              spacing: 0

              GroupBox {
                  flat: true
                  Layout.fillWidth: true
                  Column {
                      spacing: 10

                      Label {
                          font.pointSize: fontSize
                          font.bold: true
                          text: "Layer Selection"
                      }

                      CheckBox {
                          id: layerOneToggle
                          checked: true
                          style: CheckBoxStyle {
                              label: Label {
                                  font.pointSize: fontSize
                                  text: "Show Ground Layer"
                              }
                          }
                      }

                      CheckBox {
                          id: layerTwoToggle
                          checked: true
                          style: CheckBoxStyle {
                              label: Label {
                                  font.pointSize: fontSize
                                  text: "Show Sea Layer"
                              }
                          }
                      }

                      CheckBox {
                          id: layerThreeToggle
                          checked: true
                          style: CheckBoxStyle {
                              label: Label {
                                  font.pointSize: fontSize
                                  text: "Show Tectonic Layer"
                              }
                          }
                      }
                  }
              }

              GroupBox {
                  flat: true
                  Layout.fillWidth: true
                  Column {
                      spacing: 10

                      Label {
                          font.pointSize: fontSize
                          font.bold: true
                          text: "Layer Style"
                      }

                      CheckBox {
                          id: layerOneGrid
                          style: CheckBoxStyle {
                              label: Label {
                                  font.pointSize: fontSize
                                  text: "Show Ground as Grid"
                              }
                          }
                          onCheckedChanged: {
                              if (checked)
                                  layerOneSeries.drawMode = Surface3DSeries.DrawWireframe
                              else
                                  layerOneSeries.drawMode = Surface3DSeries.DrawSurface
                          }
                      }

                      CheckBox {
                          id: layerTwoGrid
                          style: CheckBoxStyle {
                              label: Label {
                                  font.pointSize: fontSize
                                  text: "Show Sea as Grid"
                              }
                          }
                          onCheckedChanged: {
                              if (checked)
                                  layerTwoSeries.drawMode = Surface3DSeries.DrawWireframe
                              else
                                  layerTwoSeries.drawMode = Surface3DSeries.DrawSurface
                          }
                      }

                      CheckBox {
                          id: layerThreeGrid
                          style: CheckBoxStyle {
                              label: Label {
                                  font.pointSize: fontSize
                                  text: "Show Tectonic as Grid"
                              }
                          }
                          onCheckedChanged: {
                              if (checked)
                                  layerThreeSeries.drawMode = Surface3DSeries.DrawWireframe
                              else
                                  layerThreeSeries.drawMode = Surface3DSeries.DrawSurface
                          }
                      }
                  }
              }

              NewButton {
                  id: sliceButton
                  text: "Slice All Layers"
                  fontSize: fontSize
                  Layout.fillWidth: true
                  Layout.minimumHeight: 40
                  onClicked: {
                      if (surfaceLayers.selectionMode & AbstractGraph3D.SelectionMultiSeries) {
                          surfaceLayers.selectionMode = AbstractGraph3D.SelectionRow
                                  | AbstractGraph3D.SelectionSlice
                          text = "Slice All Layers"
                      } else {
                          surfaceLayers.selectionMode = AbstractGraph3D.SelectionRow
                                  | AbstractGraph3D.SelectionSlice
                                  | AbstractGraph3D.SelectionMultiSeries
                          text = "Slice One Layer"
                      }
                  }
              }

              NewButton {
                  id: shadowButton
                  fontSize: fontSize
                  Layout.fillWidth: true
                  Layout.minimumHeight: 40
                  text: surfaceLayers.shadowsSupported ? "Show Shadows" : "Shadows not supported"
                  enabled: surfaceLayers.shadowsSupported
                  onClicked: {
                      if (surfaceLayers.shadowQuality === AbstractGraph3D.ShadowQualityNone) {
                          surfaceLayers.shadowQuality = AbstractGraph3D.ShadowQualityLow
                          text = "Hide Shadows"
                      } else {
                          surfaceLayers.shadowQuality = AbstractGraph3D.ShadowQualityNone
                          text = "Show Shadows"
                      }
                  }
              }

              NewButton {
                  id: renderModeButton
                  fontSize: fontSize
                  text: "Switch Render Mode"
                  Layout.fillWidth: true
                  Layout.minimumHeight: 40
                  onClicked: {
                      var modeText = "Indirect "
                      var aaText
                      if (surfaceLayers.renderingMode === AbstractGraph3D.RenderIndirect &&
                              surfaceLayers.msaaSamples === 0) {
                          surfaceLayers.renderingMode = AbstractGraph3D.RenderDirectToBackground
                          modeText = "BackGround "
                      } else if (surfaceLayers.renderingMode === AbstractGraph3D.RenderIndirect &&
                                 surfaceLayers.msaaSamples === 4) {
                          surfaceLayers.renderingMode = AbstractGraph3D.RenderIndirect
                          surfaceLayers.msaaSamples = 0
                      } else if (surfaceLayers.renderingMode === AbstractGraph3D.RenderIndirect &&
                                 surfaceLayers.msaaSamples === 8) {
                          surfaceLayers.renderingMode = AbstractGraph3D.RenderIndirect
                          surfaceLayers.msaaSamples = 4
                      } else {
                          surfaceLayers.renderingMode = AbstractGraph3D.RenderIndirect
                          surfaceLayers.msaaSamples = 8
                      }

                      if (surfaceLayers.msaaSamples <= 0) {
                          aaText = "No AA"
                      } else {
                          aaText = surfaceLayers.msaaSamples + "xMSAA"
                      }

                      renderLabel.text = modeText + aaText
                  }
              }

              TextField {
                  id: renderLabel
                  font.pointSize: fontSize
                  Layout.fillWidth: true
                  Layout.minimumHeight: 40
                  enabled: false
                  horizontalAlignment: TextInput.AlignHCenter
                  text: "Indirect, " + surfaceLayers.msaaSamples + "xMSAA"
              }
          }
      }