Spatial operations

// [WriteFile Name=SpatialOperations, Category=Geometry]
// [Legal]
// Copyright 2018 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 "SpatialOperations.h"

// ArcGIS Maps SDK headers
#include "Basemap.h"
#include "GeometryEngine.h"
#include "Graphic.h"
#include "GraphicListModel.h"
#include "GraphicsOverlay.h"
#include "GraphicsOverlayListModel.h"
#include "Map.h"
#include "MapQuickView.h"
#include "MapTypes.h"
#include "Part.h"
#include "PartCollection.h"
#include "Point.h"
#include "PolygonBuilder.h"
#include "SimpleFillSymbol.h"
#include "SpatialReference.h"
#include "SymbolTypes.h"
#include "Viewpoint.h"

using namespace Esri::ArcGISRuntime;

SpatialOperations::SpatialOperations(QQuickItem* parent /* = nullptr */) :
  QQuickItem(parent),
  m_polygon1(Geometry()),
  m_polygon2(Geometry()),
  m_inputsOverlay(new GraphicsOverlay(this)),
  m_outputsOverlay(new GraphicsOverlay(this)),
  m_geometryOperations{QStringLiteral("None"), QStringLiteral("Union"), QStringLiteral("Difference"), QStringLiteral("Symmetric difference"),
                       QStringLiteral("Intersection")}
{
}

void SpatialOperations::init()
{
  // Register the map view for QML
  qmlRegisterType<MapQuickView>("Esri.Samples", 1, 0, "MapView");
  qmlRegisterType<SpatialOperations>("Esri.Samples", 1, 0, "SpatialOperationsSample");
}

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

  m_map = new Map(BasemapStyle::ArcGISTopographic, this);
  m_mapView->setMap(m_map);

  addPolygons();
  m_mapView->graphicsOverlays()->append(m_inputsOverlay);
  m_mapView->graphicsOverlays()->append(m_outputsOverlay);
  m_map->setInitialViewpoint(Viewpoint(Point(-13453, 6710127, SpatialReference::webMercator()), 30000));
}

void SpatialOperations::addPolygons()
{
  // create blue polygon
  PolygonBuilder polygonBuilder1(SpatialReference::webMercator());
  polygonBuilder1.addPoint(-13960, 6709400);
  polygonBuilder1.addPoint(-14660, 6710000);
  polygonBuilder1.addPoint(-13760, 6710730);
  polygonBuilder1.addPoint(-13300, 6710500);
  polygonBuilder1.addPoint(-13160, 6710100);

  SimpleFillSymbol* fillSymbol1 = new SimpleFillSymbol(SimpleFillSymbolStyle::Solid, QColor("blue"), this);
  m_polygon1 = polygonBuilder1.toGeometry();
  m_inputsOverlay->graphics()->append(new Graphic(m_polygon1, fillSymbol1, this));

  // create green polygon
  // outer ring
  Part* outerRing = new Part(SpatialReference::webMercator(), this);
  outerRing->addPoint(-13060, 6711030);
  outerRing->addPoint(-12160, 6710730);
  outerRing->addPoint(-13160, 6709700);
  outerRing->addPoint(-14560, 6710730);
  outerRing->addPoint(-13060, 6711030);

  // inner ring
  Part* innerRing = new Part(SpatialReference::webMercator(), this);
  innerRing->addPoint(-13060, 6710910);
  innerRing->addPoint(-14160, 6710630);
  innerRing->addPoint(-13160, 6709900);
  innerRing->addPoint(-12450, 6710660);
  innerRing->addPoint(-13060, 6710910);

  PolygonBuilder polygonBuilder2(SpatialReference::webMercator());
  polygonBuilder2.parts()->addPart(outerRing);
  polygonBuilder2.parts()->addPart(innerRing);
  m_polygon2 = polygonBuilder2.toGeometry();
  SimpleFillSymbol* fillSymbol2 = new SimpleFillSymbol(SimpleFillSymbolStyle::Solid, QColor("green"), this);
  m_inputsOverlay->graphics()->append(new Graphic(m_polygon2, fillSymbol2, this));
}

MapQuickView* SpatialOperations::mapQuickView() const
{
  return m_mapView;
}

void SpatialOperations::setMapQuickView(MapQuickView* mapQuickView)
{
  m_mapView = mapQuickView;
  emit mapQuickViewChanged();
}

void SpatialOperations::applyGeometryOperation(int index)
{
  if (!m_map || m_map->loadStatus() != LoadStatus::Loaded)
  {
    return;
  }

  // Perform geometry calculations
  Geometry resultPolygon;
  switch (index)
  {
    case 1:
      resultPolygon = GeometryEngine::unionOf(m_polygon1, m_polygon2);
      break;
    case 2:
      resultPolygon = GeometryEngine::difference(m_polygon1, m_polygon2);
      break;
    case 3:
      resultPolygon = GeometryEngine::symmetricDifference(m_polygon1, m_polygon2);
      break;
    case 4:
      resultPolygon = GeometryEngine::intersection(m_polygon1, m_polygon2);
      break;
    case 0:
    default:
      break;
  }

  // Clear previous results
  m_outputsOverlay->graphics()->clear();
  if (resultPolygon.isEmpty())
  {
    return;
  }

  // Add the resulting polygon as a Graphic
  SimpleFillSymbol* fillSymbol = new SimpleFillSymbol(SimpleFillSymbolStyle::Solid, QColor("red"), this);
  Graphic* graphic = new Graphic(resultPolygon, fillSymbol, this);
  m_outputsOverlay->graphics()->append(graphic);
}

// [WriteFile Name=SpatialOperations, Category=Geometry]
// [Legal]
// Copyright 2018 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 SpatialOperations_H
#define SpatialOperations_H

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

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

namespace Esri::ArcGISRuntime
{
  class Map;
  class MapQuickView;
  class GraphicsOverlay;
} // namespace Esri::ArcGISRuntime

Q_MOC_INCLUDE("MapQuickView.h")

class SpatialOperations : public QQuickItem
{
  Q_OBJECT
  Q_PROPERTY(Esri::ArcGISRuntime::MapQuickView* mapView READ mapQuickView WRITE setMapQuickView NOTIFY mapQuickViewChanged)
  Q_PROPERTY(QStringList geometryOperations MEMBER m_geometryOperations CONSTANT)

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

  static void init();
  void componentComplete() override;
  Q_INVOKABLE void applyGeometryOperation(int index);

signals:
  void mapQuickViewChanged();

private:
  void addPolygons();
  void addOutput(const Esri::ArcGISRuntime::Geometry& geometry);

  Esri::ArcGISRuntime::MapQuickView* mapQuickView() const;
  void setMapQuickView(Esri::ArcGISRuntime::MapQuickView* mapQuickView);

private:
  Esri::ArcGISRuntime::Map* m_map = nullptr;
  Esri::ArcGISRuntime::MapQuickView* m_mapView = nullptr;
  Esri::ArcGISRuntime::Geometry m_polygon1;
  Esri::ArcGISRuntime::Geometry m_polygon2;
  Esri::ArcGISRuntime::GraphicsOverlay* m_inputsOverlay = nullptr;
  Esri::ArcGISRuntime::GraphicsOverlay* m_outputsOverlay = nullptr;
  QStringList m_geometryOperations;
};

#endif // SpatialOperations_H

// [WriteFile Name=SpatialOperations, Category=Geometry]
// [Legal]
// Copyright 2018 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.Layouts
import QtQuick.Controls
import Esri.Samples

SpatialOperationsSample {
    id: rootRectangle
    clip: true
    width: 800
    height: 600

    // add a mapView component
    MapView {
        id: mapQuickView
        anchors.fill: parent

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

    // Display a ComboBox with options for each operation
    ComboBox {
        id: comboBox
        anchors {
            left: parent.left
            top: parent.top
            margins: 10
        }

        property int modelWidth: 0
        width: modelWidth + leftPadding + rightPadding + (indicator ? indicator.width : 10)
        model: geometryOperations
        onCurrentIndexChanged: applyGeometryOperation(currentIndex);
        Component.onCompleted : {
            for (let i = 0; i < model.length; ++i) {
                metrics.text = model[i];
                modelWidth = Math.max(modelWidth, metrics.width);
            }
        }
        TextMetrics {
            id: metrics
            font: comboBox.font
        }
    }
}

// [WriteFile Name=SpatialOperations, Category=Geometry]
// [Legal]
// Copyright 2018 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 "SpatialOperations.h"

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

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

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

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

int main(int argc, char* argv[])
{
  QGuiApplication app(argc, argv);
  app.setApplicationName(QString("SpatialOperations"));

  // 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
  SpatialOperations::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/Geometry/SpatialOperations/SpatialOperations.qml"));

  view.show();

  return app.exec();
}