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// [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
#include "ExtrudeGraphics.h"
#include "Scene.h"
#include "SceneQuickView.h"
#include "Basemap.h"
#include "ArcGISTiledElevationSource.h"
#include "SimpleRenderer.h"
#include "Point.h"
#include "PolygonBuilder.h"
#include "Polygon.h"
#include "SimpleFillSymbol.h"
#include "Camera.h"
#include "MapTypes.h"
#include "SymbolTypes.h"
#include "GraphicsOverlayListModel.h"
#include "GraphicListModel.h"
#include "Surface.h"
#include "ElevationSourceListModel.h"
#include "RendererSceneProperties.h"
#include "SceneViewTypes.h"
#include "GraphicsOverlay.h"
#include "SpatialReference.h"
#include "Graphic.h"
#include "AttributeListModel.h"
#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();
}
