Each scene layer added to a scene can assist in performing helpful visual analysis. For example, if presenting the results of a shadow analysis of a major metropolitan downtown area in 3D, adding a scene layer of 3D buildings to the scene that could be toggled on/off would help to better contextualize the source of the shadows.
How to use the sample
When launched, this sample displays a scene service with an ArcGISSceneLayer. Pan and zoom to explore the scene.
How it works
Create a Scene and set its Basemap with Scene::setBasemap().
Create a Surface and add an elevation source to it: surface::elevationSources()::append(arcGISTiledElevationSource).
Add the created surface to the scene: Scene::setBaseSurface(surface).
Create a SceneView and set the scene to the view with SceneView::setArcGISScene(scene).
Create an ArcGISSceneLayer using a data source URL: new ArcGISSceneLayer(URL).
Add the new scene layer to the scene as an operational layer with ArcGISScene::operationalLayers()::append(sceneLayer).
Relevant API
ArcGISSceneLayer
ArcGISTiledElevationSource
Scene
SceneView
Surface
About the data
The scene launches with a northward view of the city of Brest, France. A 3D scene layer representing buildings (some textured) is used as an example.
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// [WriteFile Name=DisplaySceneLayer, 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#include"DisplaySceneLayer.h"#include"Scene.h"#include"SceneQuickView.h"#include"Basemap.h"#include"ArcGISTiledElevationSource.h"#include"ArcGISSceneLayer.h"#include"Point.h"#include"Viewpoint.h"#include"Camera.h"#include"MapTypes.h"#include"Surface.h"#include"ElevationSourceListModel.h"#include"LayerListModel.h"#include"SpatialReference.h"usingnamespace Esri::ArcGISRuntime;
DisplaySceneLayer::DisplaySceneLayer(QQuickItem* parent) :
QQuickItem(parent)
{
}
DisplaySceneLayer::~DisplaySceneLayer() = default;
voidDisplaySceneLayer::init(){
qmlRegisterType<SceneQuickView>("Esri.Samples", 1, 0, "SceneView");
qmlRegisterType<DisplaySceneLayer>("Esri.Samples", 1, 0, "DisplaySceneLayerSample");
}
voidDisplaySceneLayer::componentComplete(){
QQuickItem::componentComplete();
// find QML SceneView component m_sceneView = findChild<SceneQuickView*>("sceneView");
// create a new scene instance Basemap* basemap = newBasemap(BasemapStyle::ArcGISTopographic, this);
m_scene = newScene(basemap, this);
//! [add a scene service with ArcGISSceneLayer] m_sceneLayer = newArcGISSceneLayer(QUrl("https://tiles.arcgis.com/tiles/P3ePLMYs2RVChkJx/arcgis/rest/services/Buildings_Brest/SceneServer/layers/0"), this);
m_scene->operationalLayers()->append(m_sceneLayer);
//! [add a scene service with ArcGISSceneLayer]// create a new elevation source and add to scene ArcGISTiledElevationSource* elevationSource = newArcGISTiledElevationSource(QUrl("https://elevation3d.arcgis.com/arcgis/rest/services/WorldElevation3D/Terrain3D/ImageServer"), this);
m_scene->baseSurface()->elevationSources()->append(elevationSource);
// create a camera and set the initial viewpointPoint pt(-4.49779155626782, 48.38282454039932, 62.013264927081764, SpatialReference(4326));
Camera camera(pt, 41.64729875588979, 71.2017391571523, 2.194677223e-314);
Viewpoint initViewpoint(pt, camera);
m_scene->setInitialViewpoint(initViewpoint);
// set scene on the scene view m_sceneView->setArcGISScene(m_scene);
}
