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// [WriteFile Name=BlendRasterLayer, Category=Layers]
// [Legal]
// Copyright 2017 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 "BlendRasterLayer.h"
#include "Map.h"
#include "MapQuickView.h"
#include "Raster.h"
#include "RasterLayer.h"
#include "BlendRenderer.h"
#include "MapViewTypes.h"
#include "RasterTypes.h"
#include "ColorRamp.h"
#include "Basemap.h"
#include <QtCore/qglobal.h>
#include <QStandardPaths>
using namespace Esri::ArcGISRuntime;
// helper method to get cross platform data path
namespace
{
QString defaultDataPath()
{
QString dataPath;
#ifdef Q_OS_IOS
dataPath = QStandardPaths::writableLocation(QStandardPaths::DocumentsLocation);
#else
dataPath = QStandardPaths::writableLocation(QStandardPaths::HomeLocation);
#endif
return dataPath;
}
} // namespace
BlendRasterLayer::BlendRasterLayer(QQuickItem* parent /* = nullptr */):
QQuickItem(parent),
m_dataPath(defaultDataPath() + "/ArcGIS/Runtime/Data/raster")
{
}
BlendRasterLayer::~BlendRasterLayer() = default;
void BlendRasterLayer::init()
{
// Register the map view for QML
qmlRegisterType<MapQuickView>("Esri.Samples", 1, 0, "MapView");
qmlRegisterType<BlendRasterLayer>("Esri.Samples", 1, 0, "BlendRasterLayerSample");
}
void BlendRasterLayer::componentComplete()
{
QQuickItem::componentComplete();
// find QML MapView component
m_mapView = findChild<MapQuickView*>("mapView");
m_mapView->setWrapAroundMode(WrapAroundMode::Disabled);
// Create the raster and raster layer
Raster* raster = new Raster(m_dataPath + "/Shasta.tif", this);
m_rasterLayer = new RasterLayer(raster, this);
m_elevationRaster = new Raster(m_dataPath + "/Shasta_Elevation.tif", this);
m_rasterLayerColorRamp = new RasterLayer(m_elevationRaster, this);
// Add the raster to the map
m_basemap = new Basemap(m_rasterLayer, this);
m_basemapColorRamp = new Basemap(m_rasterLayerColorRamp, this);
m_map = new Map(m_basemap, this);
m_mapView->setMap(m_map);
}
void BlendRasterLayer::applyRenderSettings(double altitude, double azimuth, int slopeTypeVal, int colorRampTypeVal)
{
PresetColorRampType colorRampType = static_cast<PresetColorRampType>(colorRampTypeVal);
RasterLayer* rasterLyr = rasterLayer(colorRampType != PresetColorRampType::None);
if (!rasterLyr)
return;
QList<double> outputMinValues{9};
QList<double> outputMaxValues{255};
QList<double> sourceMinValues;
QList<double> sourceMaxValues;
QList<double> noDataValues;
QList<double> gammas;
double zFactor = 1.;
double pixelSizeFactor = 1.;
double pixelSizePower = 1.;
int outputBitDepth = 8;
ColorRamp* colorRamp = ColorRamp::create(colorRampType, 800, this);
SlopeType slopeType = static_cast<SlopeType>(slopeTypeVal);
BlendRenderer* renderer = new BlendRenderer(m_elevationRaster,
outputMinValues,
outputMaxValues,
sourceMinValues,
sourceMaxValues,
noDataValues,
gammas,
colorRamp,
altitude,
azimuth,
zFactor,
slopeType,
pixelSizeFactor,
pixelSizePower,
outputBitDepth,
this);
rasterLyr->setRenderer(renderer);
}
RasterLayer* BlendRasterLayer::rasterLayer(bool useColorRamp)
{
m_map->setBasemap(useColorRamp ? m_basemapColorRamp : m_basemap);
return useColorRamp ? m_rasterLayerColorRamp : m_rasterLayer;
}