Add graphics with renderer

1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
// [WriteFile Name=AddGraphicsWithRenderer, Category=DisplayInformation]
// [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 "AddGraphicsWithRenderer.h"

#include "CubicBezierSegment.h"
#include "EllipticArcSegment.h"
#include "GeodesicEllipseParameters.h"
#include "GeometryEngine.h"
#include "Map.h"
#include "MapQuickView.h"
#include "PolygonBuilder.h"
#include "PolylineBuilder.h"
#include "SimpleFillSymbol.h"
#include "SimpleLineSymbol.h"
#include "SimpleMarkerSymbol.h"
#include "SimpleRenderer.h"

using namespace Esri::ArcGISRuntime;

AddGraphicsWithRenderer::AddGraphicsWithRenderer(QQuickItem* parent) :
  QQuickItem(parent)
{
}

AddGraphicsWithRenderer::~AddGraphicsWithRenderer() = default;

void AddGraphicsWithRenderer::init()
{
  qmlRegisterType<MapQuickView>("Esri.Samples", 1, 0, "MapView");
  qmlRegisterType<AddGraphicsWithRenderer>("Esri.Samples", 1, 0, "AddGraphicsWithRendererSample");
}

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

  // find QML MapView component
  m_mapView = findChild<MapQuickView*>("mapView");

  // Create a map using the topo basemap
  m_map = new Map(BasemapStyle::ArcGISTopographic, this);
  // set map on the map view
  m_mapView->setMap(m_map);

  addGraphicsOverlays();
}

void AddGraphicsWithRenderer::addGraphicsOverlays()
{
  addPointGraphic();

  addLineGraphic();

  addPolygonGraphic();

  addCurveGraphic();

  addEllipseGraphic();
}

void AddGraphicsWithRenderer::addPointGraphic()
{
  const Point pointGeometry(40e5, 40e5, SpatialReference::webMercator());

  SimpleMarkerSymbol* pointSymbol = new SimpleMarkerSymbol(SimpleMarkerSymbolStyle::Diamond, QColor("red"), 10, this);

  Graphic* pointGraphic = new Graphic(pointGeometry, this);

  createGraphicsOverlayWithGraphicAndSymbol(pointGraphic, pointSymbol);
}

void AddGraphicsWithRenderer::addLineGraphic()
{
  PolygonBuilder polylineBuilder(SpatialReference::webMercator());
  polylineBuilder.addPoint(-10e5, 40e5);
  polylineBuilder.addPoint(20e5, 50e5);

  SimpleLineSymbol* lineSymbol = new SimpleLineSymbol(SimpleLineSymbolStyle::Solid, QColor("blue"), 5, this);

  Graphic* lineGraphic = new Graphic(polylineBuilder.toGeometry(), this);

  createGraphicsOverlayWithGraphicAndSymbol(lineGraphic, lineSymbol);
}

void AddGraphicsWithRenderer::addPolygonGraphic()
{
  PolygonBuilder polygonBuilder(SpatialReference::webMercator());
  polygonBuilder.addPoint(-20e5, 20e5);
  polygonBuilder.addPoint(20e5, 20e5);
  polygonBuilder.addPoint(20e5, -20e5);
  polygonBuilder.addPoint(-20e5, -20e5);

  SimpleFillSymbol* polygonFillSymbol = new SimpleFillSymbol(SimpleFillSymbolStyle::Solid, QColor(255, 255, 0, 180), this);

  Graphic* polygonGraphic = new Graphic(polygonBuilder.toGeometry(), this);

  createGraphicsOverlayWithGraphicAndSymbol(polygonGraphic, polygonFillSymbol);
}

void AddGraphicsWithRenderer::addCurveGraphic()
{
  Geometry heartShapedCurve = createHeart();

  Graphic* curveGraphic = new Graphic(heartShapedCurve, this);

  SimpleLineSymbol* curveLineSymbol = new SimpleLineSymbol(SimpleLineSymbolStyle::Solid, QColor("black"), 1, this);
  SimpleFillSymbol* curveFillSymbol = new SimpleFillSymbol(SimpleFillSymbolStyle::Solid, QColor("red"), curveLineSymbol, this);

  createGraphicsOverlayWithGraphicAndSymbol(curveGraphic, curveFillSymbol);
}

void AddGraphicsWithRenderer::addEllipseGraphic()
{
  GeodesicEllipseParameters parameters = GeodesicEllipseParameters();
  parameters.setCenter(Point(40e5, 25e5, SpatialReference::webMercator()));
  parameters.setGeometryType(GeometryType::Polygon);
  parameters.setSemiAxis1Length(200);
  parameters.setSemiAxis2Length(400);
  parameters.setAxisDirection(-45);
  parameters.setMaxPointCount(100);
  parameters.setAngularUnit(AngularUnit(AngularUnitId::Degrees));
  parameters.setLinearUnit(LinearUnit(LinearUnitId::Kilometers));
  parameters.setMaxSegmentLength(20);

  const Polygon ellipsePolygon = GeometryEngine::ellipseGeodesic(parameters);

  SimpleFillSymbol* ellipseSymbol = new SimpleFillSymbol(SimpleFillSymbolStyle::Solid, QColor(125, 0, 125), this);

  createGraphicsOverlayWithGraphicAndSymbol(new Graphic(ellipsePolygon, this), ellipseSymbol);
}

void AddGraphicsWithRenderer::createGraphicsOverlayWithGraphicAndSymbol(Graphic* graphic, Symbol* symbol)
{
  GraphicsOverlay* graphicOverlay = new GraphicsOverlay(this);
  // set the renderer of the overlay to be the symbol
  graphicOverlay->setRenderer(new SimpleRenderer(symbol, this));
  // add the graphic to the overlay
  graphicOverlay->graphics()->append(graphic);
  // add the overlay to the mapview
  m_mapView->graphicsOverlays()->append(graphicOverlay);
}

Geometry AddGraphicsWithRenderer::createHeart()
{
  // Declare common variables
  const Point origin(40e5, 5e5, 0, SpatialReference::webMercator());
  SpatialReference spatialReference = origin.spatialReference();
  int sideLength = 10e5;
  int minX = origin.x() - 0.5 * sideLength;
  int minY = origin.y() - 0.5 * sideLength;
  int arcRadius = sideLength * 0.25;

  // The heart-shape comprises 4-curve segments: 2 bezier curves make the base and 2 arc curves make the top
  // Declare all points used to create heart-shaped curve, starting at bottom tip and moving clockwise
  const Point bottomTip(origin.x(), minY, spatialReference);
  const Point leftControlPoint1(origin.x(), minY + 0.25 * sideLength, spatialReference);
  const Point leftControlPoint2(minX, origin.y(), spatialReference);
  const Point leftCurveEnd(minX, minY + 0.75 * sideLength, spatialReference);
  const Point leftArcCentre(minX + 0.25 * sideLength, minY + 0.75 * sideLength, spatialReference);
  const Point arcIntersection(origin.x(), minY + 0.75 * sideLength, spatialReference);
  const Point rightArcCentre(minX + sideLength, minY + 0.75 * sideLength, spatialReference);
  const Point rightCurveStart(minX + sideLength, minY + 0.75 * sideLength, spatialReference);
  const Point rightControlPoint1(minX + sideLength, origin.y(), spatialReference);
  const Point rightControlPoint2 = leftControlPoint1;

  // Create curve segments
  CubicBezierSegment leftCurve(bottomTip, leftControlPoint1, leftControlPoint2, leftCurveEnd, spatialReference);
  EllipticArcSegment leftArc(leftCurveEnd, arcIntersection, 0, false, false, arcRadius, 1, spatialReference);
  EllipticArcSegment rightArc(arcIntersection, rightCurveStart, 0, false, false, arcRadius, 1, spatialReference);
  CubicBezierSegment rightCurve(rightCurveStart, rightControlPoint1, rightControlPoint2, bottomTip, spatialReference);

  // Create part from segments
  Part* heart = new Part(spatialReference, this);
  heart->addSegment(leftCurve);
  heart->addSegment(leftArc);
  heart->addSegment(rightArc);
  heart->addSegment(rightCurve);

  // Create part collection
  PartCollection* partCollection = new PartCollection(spatialReference, this);
  partCollection->addPart(heart);

  // Construct polygon from part collection
  PolygonBuilder* heartBuilder = new PolygonBuilder(origin.spatialReference(), this);
  heartBuilder->setParts(partCollection);

  return heartBuilder->toGeometry();
}