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// [WriteFile Name=FindServiceAreasForMultipleFacilities, Category=Routing]
// [Legal]
// Copyright 2020 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
#include "FindServiceAreasForMultipleFacilities.h"
#include "FeatureLayer.h"
#include "GraphicsOverlay.h"
#include "Map.h"
#include "MapQuickView.h"
#include "PictureMarkerSymbol.h"
#include "QueryParameters.h"
#include "ServiceAreaParameters.h"
#include "ServiceAreaPolygon.h"
#include "ServiceAreaResult.h"
#include "ServiceAreaTask.h"
#include "ServiceFeatureTable.h"
#include "SimpleFillSymbol.h"
#include "SimpleRenderer.h"
#include "MapTypes.h"
#include "SymbolTypes.h"
#include "Error.h"
#include "TaskWatcher.h"
#include "GraphicsOverlayListModel.h"
#include "GraphicListModel.h"
#include "NetworkAnalystTypes.h"
#include "LayerListModel.h"
#include "ServiceAreaFacility.h"
#include "Envelope.h"
#include "Polygon.h"
#include "Graphic.h"
#include <QUuid>
#include <QUrl>
using namespace Esri::ArcGISRuntime;
namespace
{
const QUrl url("https://services2.arcgis.com/ZQgQTuoyBrtmoGdP/ArcGIS/rest/services/San_Diego_Facilities/FeatureServer/0");
const QUrl imageUrl("https://static.arcgis.com/images/Symbols/SafetyHealth/Hospital.png");
const QUrl serviceAreaTaskUrl("https://sampleserver6.arcgisonline.com/arcgis/rest/services/NetworkAnalysis/SanDiego/NAServer/ServiceArea");
}
FindServiceAreasForMultipleFacilities::FindServiceAreasForMultipleFacilities(QObject* parent /* = nullptr */):
QObject(parent),
m_map(new Map(BasemapStyle::ArcGISLightGray, this)),
m_serviceAreasOverlay(new GraphicsOverlay(this))
{
// create fill symbols for rendering the results
m_fillSymbols.append(new SimpleFillSymbol(SimpleFillSymbolStyle::Solid, QColor(255, 166, 0, 66), this)); // translucent orange
m_fillSymbols.append(new SimpleFillSymbol(SimpleFillSymbolStyle::Solid, QColor(255, 0, 0, 66), this)); // translucent red
m_facilitiesTable = new ServiceFeatureTable(url, this);
m_facilitiesFeatureLayer = new FeatureLayer(m_facilitiesTable, this);
// create a symbol to display the facilities
PictureMarkerSymbol* facilitiesSymbol = new PictureMarkerSymbol(imageUrl, this);
facilitiesSymbol->setWidth(25);
facilitiesSymbol->setHeight(25);
m_facilitiesFeatureLayer->setRenderer(new SimpleRenderer(facilitiesSymbol, this));
// add the facilities feature layer to the map
m_map->operationalLayers()->append(m_facilitiesFeatureLayer);
}
FindServiceAreasForMultipleFacilities::~FindServiceAreasForMultipleFacilities() = default;
void FindServiceAreasForMultipleFacilities::init()
{
// Register the map view for QML
qmlRegisterType<MapQuickView>("Esri.Samples", 1, 0, "MapView");
qmlRegisterType<FindServiceAreasForMultipleFacilities>("Esri.Samples", 1, 0, "FindServiceAreasForMultipleFacilitiesSample");
}
MapQuickView* FindServiceAreasForMultipleFacilities::mapView() const
{
return m_mapView;
}
bool FindServiceAreasForMultipleFacilities::taskRunning() const
{
return !m_taskWatcher.isDone();
}
// Set the view (created in QML)
void FindServiceAreasForMultipleFacilities::setMapView(MapQuickView* mapView)
{
if (!mapView || mapView == m_mapView)
return;
m_mapView = mapView;
connect(m_facilitiesFeatureLayer, &FeatureLayer::doneLoading, this, [this](const Error& loadError)
{
if (!loadError.isEmpty())
{
qDebug() << loadError.message() << loadError.additionalMessage();
return;
}
// zoom to the full extent of the feature layer
int buffer = 100;
m_mapView->setViewpointGeometry(m_facilitiesFeatureLayer->fullExtent(), buffer);
});
m_mapView->setMap(m_map);
m_mapView->graphicsOverlays()->append(m_serviceAreasOverlay);
emit mapViewChanged();
}
void FindServiceAreasForMultipleFacilities::connectServiceAreaTaskSignals()
{
// once service area task is done loading, create default parameters
connect(m_serviceAreaTask, &ServiceAreaTask::doneLoading, this, [this](const Error& loadError)
{
if (!loadError.isEmpty())
{
qDebug() << loadError.message() << loadError.additionalMessage();
return;
}
m_serviceAreaTask->createDefaultParameters();
});
// once default parameters created, set parameters and solve
connect(m_serviceAreaTask, &ServiceAreaTask::createDefaultParametersCompleted, this, [this](const QUuid&, ServiceAreaParameters serviceAreaParameters)
{
serviceAreaParameters.setPolygonDetail(ServiceAreaPolygonDetail::High);
serviceAreaParameters.setReturnPolygons(true);
QList<double> travelTimes = {1.0, 3.0};
// add service areas of 1 minute and 3 minutes travel time by car
serviceAreaParameters.setDefaultImpedanceCutoffs(travelTimes);
// create query parameters used to select all facilities from the feature table
QueryParameters queryParameters;
queryParameters.setWhereClause("1=1");
// add all facilities to the service area parameters
serviceAreaParameters.setFacilitiesWithFeatureTable(m_facilitiesTable, queryParameters);
m_taskWatcher = m_serviceAreaTask->solveServiceArea(serviceAreaParameters);
if (!m_taskWatcher.isValid())
qWarning() << "Task not valid.";
emit taskRunningChanged();
});
connect(m_serviceAreaTask, &ServiceAreaTask::solveServiceAreaCompleted, this, [this](const QUuid&, const ServiceAreaResult& serviceAreaResult)
{
emit taskRunningChanged();
// iterate through the facilities to get the service area polygons
for (int i = 0; i < serviceAreaResult.facilities().size(); ++i)
{
QList<ServiceAreaPolygon> serviceAreaPolygonList = serviceAreaResult.resultPolygons(i);
// create a graphic for each available polygon
for (int j = 0; j < serviceAreaPolygonList.size(); ++j)
{
m_serviceAreasOverlay->graphics()->append(new Graphic(serviceAreaPolygonList[j].geometry(), m_fillSymbols[j], this));
}
}
});
}
void FindServiceAreasForMultipleFacilities::findServiceAreas()
{
if (m_serviceAreaTask)
return;
m_serviceAreaTask = new ServiceAreaTask(serviceAreaTaskUrl, this);
connectServiceAreaTaskSignals();
m_serviceAreaTask->load();
}
