Add an integrated mesh layer

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Sample viewer app

View an integrated mesh layer from a scene service.

screenshot

Use case

An integrated mesh is used to generate a mesh over a point dataset. They are most often used on high-density point datasets to create a high-resolution seamless surface.

How to use the sample

After launching the sample, watch the integrated mesh layer load in place. Navigate around the scene to visualize the high level of detail on the buildings.

How it works

  1. Create a Scene.
  2. Create an IntegratedMeshLayer with the URL to an integrated mesh layer scene service.
  3. Add the layer to the scene's operational layers.

Relevant API

  • IntegratedMeshLayer

About the data

This integrated mesh depicts the city of Girona, Spain and is attributed to the Institut Cartogràfic i Geològic de Catalunya (ICGC). The data was produced from photogrammetrically correct imagery. Areas of white space within the integrated mesh are areas that had poor overlapping coverage from photos.

Additional information

An integrated mesh layer can also be added to a scene from a local data source - either from a scene layer package (.slpk) or a mobile scene package (.mspk).

Tags

3D, integrated mesh, layers

Sample Code

AddIntegratedMeshLayer.cppAddIntegratedMeshLayer.cppAddIntegratedMeshLayer.hAddIntegratedMeshLayer.qml
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// [WriteFile Name=AddIntegratedMeshLayer, Category=Scenes]
// [Legal]
// Copyright 2018 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 "AddIntegratedMeshLayer.h"

#include "ArcGISTiledElevationSource.h"
#include "Scene.h"
#include "SceneQuickView.h"
#include "IntegratedMeshLayer.h"

using namespace Esri::ArcGISRuntime;

AddIntegratedMeshLayer::AddIntegratedMeshLayer(QObject* parent /* = nullptr */):
  QObject(parent),
  m_scene(new Scene(this)),
  m_integratedMeshLyr(new IntegratedMeshLayer(QUrl("https://tiles.arcgis.com/tiles/z2tnIkrLQ2BRzr6P/arcgis/rest/services/Girona_Spain/SceneServer"), this))
{
  // Connect the doneLoading signal to the handleError() method.
  connect(m_integratedMeshLyr, &IntegratedMeshLayer::doneLoading, this, &AddIntegratedMeshLayer::handleError);

  m_scene->operationalLayers()->append(m_integratedMeshLyr);

  setIntegratedMeshViewpoint();
}

void AddIntegratedMeshLayer::setIntegratedMeshViewpoint()
{
  const Point initialPt(2.8259, 41.9906, 200.0, SpatialReference::wgs84());
  const Camera initialCamera(initialPt, 200.0, 190.0, 65.0, 0.0);
  const Viewpoint initialViewpoint(initialPt, initialPt.z(), initialCamera);
  m_scene->setInitialViewpoint(initialViewpoint);
}

AddIntegratedMeshLayer::~AddIntegratedMeshLayer() = default;

void AddIntegratedMeshLayer::init()
{
  // Register classes for QML
  qmlRegisterType<SceneQuickView>("Esri.Samples", 1, 0, "SceneView");
  qmlRegisterType<AddIntegratedMeshLayer>("Esri.Samples", 1, 0, "AddIntegratedMeshLayerSample");
}

SceneQuickView* AddIntegratedMeshLayer::sceneView() const
{
  return m_sceneView;
}

// Set the view (created in QML)
void AddIntegratedMeshLayer::setSceneView(SceneQuickView* sceneView)
{
  if (!sceneView || sceneView == m_sceneView)
  {
    return;
  }

  m_sceneView = sceneView;
  m_sceneView->setArcGISScene(m_scene);

  emit sceneViewChanged();
}

void AddIntegratedMeshLayer::handleError(const Error& error)
{
  // If the doneLoading error message is not empty, an error has been encountered.
  if (!error.isEmpty())
  {
    if (error.additionalMessage().isEmpty())
      m_errorMessage = error.message();
    else
      m_errorMessage = error.message() + "\n" + error.additionalMessage();
  }

  emit errorMessageChanged();
}

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