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// [WriteFile Name=FeatureLayerExtrusion, Category=Scenes]
// [Legal]
// Copyright 2017 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 "FeatureLayerExtrusion.h"
#include "FeatureLayer.h"
#include "ServiceFeatureTable.h"
#include "ArcGISTiledElevationSource.h"
#include "Scene.h"
#include "SceneQuickView.h"
#include "Point.h"
#include "SimpleLineSymbol.h"
#include "SimpleFillSymbol.h"
#include "SimpleRenderer.h"
#include "RendererSceneProperties.h"
using namespace Esri::ArcGISRuntime;
FeatureLayerExtrusion::FeatureLayerExtrusion(QQuickItem* parent /* = nullptr */):
QQuickItem(parent),
// define line and fill symbols for a simple renderer
m_lineSymbol(new SimpleLineSymbol(SimpleLineSymbolStyle::Solid, QColor("Black"), 1.0f, this)),
m_fillSymbol(new SimpleFillSymbol(SimpleFillSymbolStyle::Solid, QColor("Blue"), m_lineSymbol, this)),
m_renderer(new SimpleRenderer(m_fillSymbol, this))
{
// set renderer extrusion mode to absolute to prevent clipping
RendererSceneProperties props = m_renderer->sceneProperties();
props.setExtrusionMode(ExtrusionMode::AbsoluteHeight);
props.setExtrusionExpression("[POP2007] / 10");
m_renderer->setSceneProperties(props);
}
void FeatureLayerExtrusion::init()
{
// Register classes for QML
qmlRegisterType<SceneQuickView>("Esri.Samples", 1, 0, "SceneView");
qmlRegisterType<FeatureLayerExtrusion>("Esri.Samples", 1, 0, "FeatureLayerExtrusionSample");
}
void FeatureLayerExtrusion::componentComplete()
{
QQuickItem::componentComplete();
// Create the feature service to use
m_featureTable = new ServiceFeatureTable(QUrl("https://sampleserver6.arcgisonline.com/arcgis/rest/services/Census/MapServer/3"), this);
// add the service feature table to a feature layer
m_featureLayer = new FeatureLayer(m_featureTable, this);
// set the feature layer to render dynamically to allow extrusion
m_featureLayer->setRenderingMode(FeatureRenderingMode::Dynamic);
// set the simple renderer to the feature layer
m_featureLayer->setRenderer(m_renderer);
// Create a scene and give it to the SceneView
m_sceneView = findChild<SceneQuickView*>("sceneView");
Scene* scene = new Scene(BasemapStyle::ArcGISImageryStandard, this);
Surface* surface = new Surface(this);
surface->elevationSources()->append(
new ArcGISTiledElevationSource(
QUrl("https://elevation3d.arcgis.com/arcgis/rest/services/WorldElevation3D/Terrain3D/ImageServer"),
this));
scene->setBaseSurface(surface);
scene->operationalLayers()->append(m_featureLayer);
// set initial viewpoint
const double distance = 12940924;
const Point lookAtPoint(-99.659448, 20.513652, distance, SpatialReference::wgs84());
const Camera camera(lookAtPoint, 0, 15, 0);
const Viewpoint initialVp(lookAtPoint, distance, camera);
scene->setInitialViewpoint(initialVp);
// apply initial extrusion
totalPopulation();
m_sceneView->setArcGISScene(scene);
}
void FeatureLayerExtrusion::popDensity()
{
// multiply population density by 5000 to make data legible
RendererSceneProperties props = m_renderer->sceneProperties();
props.setExtrusionExpression("([POP07_SQMI] * 5000) + 100000");
m_renderer->setSceneProperties(props);
}
void FeatureLayerExtrusion::totalPopulation()
{
// divide total population by 10 to make data legible
RendererSceneProperties props = m_renderer->sceneProperties();
props.setExtrusionExpression("[POP2007] / 10");
m_renderer->setSceneProperties(props);
}