From 6a273f0e893a0143c2df7a929014700a5a2250e4 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?David=20Ko=C5=88a=C5=99=C3=ADk?= <dvdkon@konarici.cz>
Date: Sat, 19 Oct 2024 20:47:27 +0200
Subject: [PATCH] Add test for Identify tool on VPC

---
 tests/src/app/testqgsidentify.cpp             |  29 +
 .../virtual/sunshine-coast/0-0.copc.laz       | Bin 0 -> 3806 bytes
 .../virtual/sunshine-coast/0-1.copc.laz       | Bin 0 -> 3361 bytes
 .../virtual/sunshine-coast/1-0.copc.laz       | Bin 0 -> 3667 bytes
 .../virtual/sunshine-coast/1-1.copc.laz       | Bin 0 -> 3264 bytes
 .../virtual/sunshine-coast/combined.vpc       | 853 ++++++++++++++++++
 6 files changed, 882 insertions(+)
 create mode 100644 tests/testdata/point_clouds/virtual/sunshine-coast/0-0.copc.laz
 create mode 100644 tests/testdata/point_clouds/virtual/sunshine-coast/0-1.copc.laz
 create mode 100644 tests/testdata/point_clouds/virtual/sunshine-coast/1-0.copc.laz
 create mode 100644 tests/testdata/point_clouds/virtual/sunshine-coast/1-1.copc.laz
 create mode 100644 tests/testdata/point_clouds/virtual/sunshine-coast/combined.vpc

diff --git a/tests/src/app/testqgsidentify.cpp b/tests/src/app/testqgsidentify.cpp
index 951326b116a2..58392b46e1a9 100644
--- a/tests/src/app/testqgsidentify.cpp
+++ b/tests/src/app/testqgsidentify.cpp
@@ -72,6 +72,7 @@ class TestQgsIdentify : public QObject
     void testLineStringZ();
     void testPolygonZ();
     void identifyPointCloud();
+    void identifyVirtualPointCloud();
 
   private:
     void doAction();
@@ -1303,6 +1304,34 @@ void TestQgsIdentify::identifyPointCloud()
 #endif
 }
 
+void TestQgsIdentify::identifyVirtualPointCloud()
+{
+#ifdef HAVE_COPC
+  std::unique_ptr< QgsPointCloudLayer > pointCloud = std::make_unique< QgsPointCloudLayer >( QStringLiteral( TEST_DATA_DIR ) + "/point_clouds/virtual/sunshine-coast/combined.vpc", QStringLiteral( "pointcloud" ), QStringLiteral( "vpc" ) );
+  QVERIFY( pointCloud->isValid() );
+  pointCloud->setCrs( QgsCoordinateReferenceSystem( QStringLiteral( "EPSG:28356" ) ) );
+  QCOMPARE( pointCloud->crs3D().horizontalCrs().authid(), QStringLiteral( "EPSG:28356" ) );
+
+  for ( int i = 0; i < pointCloud->dataProvider()->subIndexes().size(); i++ )
+    pointCloud->dataProvider()->loadSubIndex( i );
+
+  // set project CRS and ellipsoid
+  // Note that using a different CRS here (a world-wide WGS84-based one) caused
+  // problems on some machines due to insufficient precision in reprojection.
+  QgsProject::instance()->setCrs( pointCloud->crs() );
+  canvas->setDestinationCrs( pointCloud->crs() );
+  canvas->setExtent( QgsRectangle::fromCenterAndSize( QgsPointXY( 498065.5, 7050992.5 ), 1, 1 ) );
+
+  const QgsPointXY mapPoint = canvas->getCoordinateTransform()->transform( 498065.23, 7050992.90 );
+
+  std::unique_ptr< QgsMapToolIdentifyAction > action( new QgsMapToolIdentifyAction( canvas ) );
+  QList<QgsMapToolIdentify::IdentifyResult> result = action->identify( static_cast< int >( mapPoint.x() ), static_cast< int >( mapPoint.y() ), QList<QgsMapLayer *>() << pointCloud.get() );
+  QCOMPARE( result.length(), 1 );
+  double z = result.at( 0 ).mDerivedAttributes[ QStringLiteral( "Z" )].toDouble();
+  QGSCOMPARENEAR( z, 74.91, 0.001 );
+#endif
+}
+
 QGSTEST_MAIN( TestQgsIdentify )
 #include "testqgsidentify.moc"
 
diff --git a/tests/testdata/point_clouds/virtual/sunshine-coast/0-0.copc.laz b/tests/testdata/point_clouds/virtual/sunshine-coast/0-0.copc.laz
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diff --git a/tests/testdata/point_clouds/virtual/sunshine-coast/1-1.copc.laz b/tests/testdata/point_clouds/virtual/sunshine-coast/1-1.copc.laz
new file mode 100644
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