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
// [WriteFile Name=ExportTiles, Category=Layers]
// [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 "ExportTiles.h"
#include "Map.h"
#include "MapQuickView.h"
#include "Basemap.h"
#include "ExportTiles.h"
#include "ArcGISTiledLayer.h"
#include "ExportTileCacheTask.h"
#include "Envelope.h"
#include "GeometryEngine.h"
#include "SpatialReference.h"
#include "TileCache.h"
#include "Error.h"
#include "MapTypes.h"
#include "TaskWatcher.h"
#include "LayerListModel.h"
#include "ExportTileCacheJob.h"
#include "TaskTypes.h"
#include "Point.h"
#include "Envelope.h"
#include "Viewpoint.h"
#include <QUrl>
#include <QUuid>
using namespace Esri::ArcGISRuntime;
ExportTiles::ExportTiles(QQuickItem* parent) :
QQuickItem(parent)
{
}
ExportTiles::~ExportTiles() = default;
void ExportTiles::init()
{
qmlRegisterType<MapQuickView>("Esri.Samples", 1, 0, "MapView");
qmlRegisterType<ExportTiles>("Esri.Samples", 1, 0, "ExportTilesSample");
}
void ExportTiles::componentComplete()
{
QQuickItem::componentComplete();
// find QML MapView component
m_mapView = findChild<MapQuickView*>("mapView");
// create a tiled basemap
Basemap* basemap = new Basemap(BasemapStyle::ArcGISImagery, this);
// create an export tile cache task when basemap has finished loading
connect(basemap, &Basemap::doneLoading, this, [this]()
{
if (!m_map->basemap()->baseLayers()->isEmpty())
createExportTileCacheTask();
});
// create a new map instance
m_map = new Map(basemap, this);
// set an initial viewpoint
m_map->setInitialViewpoint(Viewpoint(35, -117, 1e7));
// set map on the map view
m_mapView->setMap(m_map);
}
void ExportTiles::createExportTileCacheTask()
{
// Get a tile layer from the basemap
ArcGISTiledLayer* tiledLayer = dynamic_cast<ArcGISTiledLayer*>(m_map->basemap()->baseLayers()->at(0));
// create the task with the url and load it
m_exportTileCacheTask = new ExportTileCacheTask(tiledLayer->url(), this);
connect(m_exportTileCacheTask, &ExportTileCacheTask::doneLoading, this, [this](const Error& error)
{
if (!error.isEmpty())
{
emit updateStatus("Export failed");
emit hideWindow(5000, false);
}
});
m_exportTileCacheTask->load();
}
void ExportTiles::exportTileCacheFromCorners(double xCorner1, double yCorner1, double xCorner2, double yCorner2)
{
// create an envelope from the QML rectangle corners
const Point corner1 = m_mapView->screenToLocation(xCorner1, yCorner1);
const Point corner2 = m_mapView->screenToLocation(xCorner2, yCorner2);
const Envelope extent(corner1, corner2);
const Geometry tileCacheExtent = GeometryEngine::project(extent, SpatialReference::webMercator());
// connect to sync task doneLoading signal
connect(m_exportTileCacheTask, &ExportTileCacheTask::defaultExportTileCacheParametersCompleted, this, [this](const QUuid&, const ExportTileCacheParameters& parameters)
{
//! [ExportTiles start job]
// execute the task and obtain the job
ExportTileCacheJob* exportJob = m_exportTileCacheTask->exportTileCache(parameters, m_tempPath.path() + "/offlinemap.tpkx");
// check if there is a valid job
if (exportJob)
{
connect(exportJob, &ExportTileCacheJob::progressChanged, this, [this, exportJob]()
{
m_exportTilesProgress = exportJob->progress();
emit exportTilesProgressChanged();
});
// connect to the job's status changed signal
connect(exportJob, &ExportTileCacheJob::statusChanged, this, [this, exportJob](JobStatus jobStatus)
{
// connect to the job's status changed signal to know once it is done
switch (jobStatus) {
case JobStatus::Failed:
emit updateStatus("Export failed");
emit hideWindow(5000, false);
break;
case JobStatus::NotStarted:
emit updateStatus("Job not started");
break;
case JobStatus::Paused:
emit updateStatus("Job paused");
break;
case JobStatus::Started:
emit updateStatus("In progress...");
break;
case JobStatus::Succeeded:
emit updateStatus("Adding TPKX...");
emit hideWindow(1500, true);
displayOutputTileCache(exportJob->result());
break;
default:
break;
}
});
// start the export job
exportJob->start();
}
//! [ExportTiles start job]
else
{
emit updateStatus("Export failed");
emit hideWindow(5000, false);
}
});
// generate parameters
m_exportTileCacheTask->createDefaultExportTileCacheParameters(tileCacheExtent, m_mapView->mapScale(), m_mapView->mapScale() * 0.1);
}
// display the tile cache once the task is complete
void ExportTiles::displayOutputTileCache(TileCache* tileCache)
{
// create a new tiled layer from the output tile cache
ArcGISTiledLayer* tiledLayer = new ArcGISTiledLayer(tileCache, this);
// add the new layer to a basemap
Basemap* basemap = new Basemap(tiledLayer, this);
// set the new basemap on the map
m_map->setBasemap(basemap);
// zoom to the new layer and hide window once loaded
connect(tiledLayer, &ArcGISTiledLayer::doneLoading, this, [this, tiledLayer]()
{
if (tiledLayer->loadStatus() == LoadStatus::Loaded)
{
const double prevMapScale = m_mapView->mapScale();
m_map->setMinScale(prevMapScale);
m_map->setMaxScale(prevMapScale * 0.1);
m_mapView->setViewpointScale(prevMapScale * 0.5);
}
});
}