Extrude graphics

// [WriteFile Name=ExtrudeGraphics, Category=Scenes]
// [Legal]
// Copyright 2016 Esri.
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
// [Legal]

#ifdef PCH_BUILD
#include "pch.hpp"
#endif // PCH_BUILD

// sample headers
#include "ExtrudeGraphics.h"

// ArcGIS Maps SDK headers
#include "ArcGISTiledElevationSource.h"
#include "AttributeListModel.h"
#include "Basemap.h"
#include "Camera.h"
#include "ElevationSourceListModel.h"
#include "Graphic.h"
#include "GraphicListModel.h"
#include "GraphicsOverlay.h"
#include "GraphicsOverlayListModel.h"
#include "MapTypes.h"
#include "Point.h"
#include "Polygon.h"
#include "PolygonBuilder.h"
#include "RendererSceneProperties.h"
#include "Scene.h"
#include "SceneQuickView.h"
#include "SceneViewTypes.h"
#include "SimpleFillSymbol.h"
#include "SimpleRenderer.h"
#include "SpatialReference.h"
#include "Surface.h"
#include "SymbolTypes.h"

// STL headers
#include <cmath>
#include <ctime>

using namespace Esri::ArcGISRuntime;

ExtrudeGraphics::ExtrudeGraphics(QQuickItem* parent) :
  QQuickItem(parent)
{
  srand(time(nullptr));
}

ExtrudeGraphics::~ExtrudeGraphics() = default;

void ExtrudeGraphics::init()
{
  qmlRegisterType<SceneQuickView>("Esri.Samples", 1, 0, "SceneView");
  qmlRegisterType<ExtrudeGraphics>("Esri.Samples", 1, 0, "ExtrudeGraphicsSample");
}

void ExtrudeGraphics::componentComplete()
{
  QQuickItem::componentComplete();

  // find QML SceneView component
  m_sceneView = findChild<SceneQuickView*>("sceneView");

  // create a new basemap instance
  Basemap* basemap = new Basemap(BasemapStyle::ArcGISImageryStandard, this);
  // create a new scene instance
  m_scene = new Scene(basemap, this);
  // set scene on the scene view
  m_sceneView->setArcGISScene(m_scene);

  // create a new elevation source
  ArcGISTiledElevationSource* elevationSource = new ArcGISTiledElevationSource(m_elevationSourceUrl, this);
  // add the elevation source to the scene to display elevation
  m_scene->baseSurface()->elevationSources()->append(elevationSource);

  // create a camera
  const double latitude = 28.4;
  const double longitude = 83.9;
  const double altitude = 10010.0;
  const double heading = 10.0;
  const double pitch = 80.0;
  const double roll = 0.0;
  Camera camera(latitude, longitude, altitude, heading, pitch, roll);
  // set the viewpoint
  m_sceneView->setViewpointCameraAndWait(camera);

  // graphics location
  double lon = camera.location().x() - 0.03;
  double lat = camera.location().y() + 0.2;

  GraphicsOverlay* graphicsOverlay = new GraphicsOverlay(this);

  // set renderer with extrusion property
  SimpleRenderer* renderer = new SimpleRenderer(this);
  RendererSceneProperties props = renderer->sceneProperties();
  props.setExtrusionMode(ExtrusionMode::BaseHeight);
  props.setExtrusionExpression("[height]");
  renderer->setSceneProperties(props);
  SimpleFillSymbol* sfs = new SimpleFillSymbol(SimpleFillSymbolStyle::Solid, QColor("red"), this);
  renderer->setSymbol(sfs);
  graphicsOverlay->setRenderer(renderer);

  // setup graphic locations
  QList<Point> pointsList;
  for (int i = 0; i <= 100; i++)
  {
    Point point(i / 10 * (m_size * 2) + lon, i % 10 * (m_size * 2) + lat, m_sceneView->spatialReference());
    pointsList.append(point);
  }

  for (const Point& point : pointsList)
  {
    // create a random z value
    const int randNum = rand() % 6 + 1;
    const double z = m_maxZ * randNum;

    // create a list of points
    const QList<Point> points { Point(point.x(), point.y(), z)
                              , Point(point.x() + m_size, point.y(), z)
                              , Point(point.x() + m_size, point.y() + m_size, z)
                              , Point(point.x(), point.y() + m_size, z)
                              };

    // create a new graphic
    Graphic* graphic = new Graphic(createPolygonFromPoints(points), this);
    // add a height attribute to the graphic using the attribute list model
    // the extrusion will be applied to this attribute. See the expression above
    graphic->attributes()->insertAttribute("height", z);
    // add the graphic to the graphic overlay
    graphicsOverlay->graphics()->append(graphic);
  }

  m_sceneView->graphicsOverlays()->append(graphicsOverlay);
}

// helper to create polygon from points
Polygon ExtrudeGraphics::createPolygonFromPoints(const QList<Point>& points)
{
  Polygon polygon;
  if (points.length() == 0)
    return polygon;

  // create a polygon builder
  PolygonBuilder* pb = new PolygonBuilder(m_sceneView->spatialReference(), this);
  for (const Point& point : points)
  {
    // add each point to the builder object
    pb->addPoint(point);
  }
  return polygon = pb->toPolygon();
}

// [WriteFile Name=ExtrudeGraphics, Category=Scenes]
// [Legal]
// Copyright 2016 Esri.
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
// [Legal]

#ifndef EXTRUDE_GRAPHICS_H
#define EXTRUDE_GRAPHICS_H

// Qt headers
#include <QQuickItem>
#include <QUrl>

namespace Esri::ArcGISRuntime
{
  class Scene;
  class SceneQuickView;
  class Point;
  class Polygon;
}

class ExtrudeGraphics : public QQuickItem
{
  Q_OBJECT

public:
  explicit ExtrudeGraphics(QQuickItem* parent = nullptr);
  ~ExtrudeGraphics() override;

  void componentComplete() override;
  static void init();

private:
  Esri::ArcGISRuntime::Polygon createPolygonFromPoints(const QList<Esri::ArcGISRuntime::Point>&);

  Esri::ArcGISRuntime::Scene* m_scene = nullptr;
  Esri::ArcGISRuntime::SceneQuickView* m_sceneView = nullptr;
  QUrl m_elevationSourceUrl = QUrl("https://elevation3d.arcgis.com/arcgis/rest/services/WorldElevation3D/Terrain3D/ImageServer");
  int m_maxZ = 1000;
  double m_size = 0.01;
};

#endif // EXTRUDE_GRAPHICS_H

// [WriteFile Name=ExtrudeGraphics, Category=Scenes]
// [Legal]
// Copyright 2016 Esri.
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
// [Legal]

import QtQuick
import QtQuick.Controls
import Esri.Samples

ExtrudeGraphicsSample {
    width: 800
    height: 600

    // add a mapView component
    SceneView {
        anchors.fill: parent
        objectName: "sceneView"

        Component.onCompleted: {
            // Set the focus on SceneView to initially enable keyboard navigation
            forceActiveFocus();
        }
    }
}

// [Legal]
// Copyright 2015 Esri.
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
// [Legal]

// sample headers
#include "ExtrudeGraphics.h"

// ArcGIS Maps SDK headers
#include "ArcGISRuntimeEnvironment.h"

// Qt headers
#include <QCommandLineParser>
#include <QDir>
#include <QGuiApplication>
#include <QQmlEngine>
#include <QQuickView>
#include <QSettings>
#include <QSurfaceFormat>

// Platform specific headers
#ifdef Q_OS_WIN
#include <Windows.h>
#endif

#define STRINGIZE(x) #x
#define QUOTE(x) STRINGIZE(x)

using namespace Esri::ArcGISRuntime;

int main(int argc, char *argv[])
{
  Esri::ArcGISRuntime::ArcGISRuntimeEnvironment::setUseLegacyAuthentication(false);
#if defined(Q_OS_LINUX) && !defined(Q_OS_ANDROID)
  // Linux requires 3.2 OpenGL Context
  // in order to instance 3D symbols
  QSurfaceFormat fmt = QSurfaceFormat::defaultFormat();
  fmt.setVersion(3, 2);
  QSurfaceFormat::setDefaultFormat(fmt);
#endif

  QGuiApplication app(argc, argv);
  app.setApplicationName(QString("ExtrudeGraphics"));

  // Use of ArcGIS location services, such as basemap styles, geocoding, and routing services,
  // requires an access token. For more information see
  // https://links.esri.com/arcgis-runtime-security-auth.

  // The following methods grant an access token:

  // 1. User authentication: Grants a temporary access token associated with a user's ArcGIS account.
  // To generate a token, a user logs in to the app with an ArcGIS account that is part of an
  // organization in ArcGIS Online or ArcGIS Enterprise.

  // 2. API key authentication: Get a long-lived access token that gives your application access to
  // ArcGIS location services. Go to the tutorial at https://links.esri.com/create-an-api-key.
  // Copy the API Key access token.

  const QString accessToken = QString("");

  if (accessToken.isEmpty())
  {
      qWarning() << "Use of ArcGIS location services, such as the basemap styles service, requires" <<
                    "you to authenticate with an ArcGIS account or set the API Key property.";
  }
  else
  {
      Esri::ArcGISRuntime::ArcGISRuntimeEnvironment::setApiKey(accessToken);
  }

  // Initialize the sample
  ExtrudeGraphics::init();

  // Initialize application view
  QQuickView view;
  view.setResizeMode(QQuickView::SizeRootObjectToView);

  // Add the import Path
  view.engine()->addImportPath(QDir(QCoreApplication::applicationDirPath()).filePath("qml"));

  QString arcGISRuntimeImportPath = QUOTE(ARCGIS_RUNTIME_IMPORT_PATH);

 #if defined(LINUX_PLATFORM_REPLACEMENT)
  // on some linux platforms the string 'linux' is replaced with 1
  // fix the replacement paths which were created
  QString replaceString = QUOTE(LINUX_PLATFORM_REPLACEMENT);
  arcGISRuntimeImportPath = arcGISRuntimeImportPath.replace(replaceString, "linux", Qt::CaseSensitive);
 #endif

  // Add the Runtime and Extras path
  view.engine()->addImportPath(arcGISRuntimeImportPath);

  // Set the source
  view.setSource(QUrl("qrc:/Samples/Scenes/ExtrudeGraphics/ExtrudeGraphics.qml"));

  view.show();

  return app.exec();
}