qtdoc/examples/demos/osmbuildings/manager.cpp

108 lines
3.8 KiB
C++

// Copyright (C) 2023 The Qt Company Ltd.
// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR BSD-3-Clause
#include "manager.h"
#include <QImage>
#include <QRgb>
#include <algorithm>
OSMManager::OSMManager(QObject *parent)
: QObject{parent},
m_request(new OSMRequest(this))
{
connect(m_request, &OSMRequest::buildingsDataReady, this, [this](const QList<QVariant> &geoVariantsList
, int tileX, int tileY, int zoomLevel){
m_buildingsHash.insert(OSMTileData{tileX, tileY, zoomLevel}, true);
emit buildingsDataReady(geoVariantsList, tileX - m_startBuildingTileX,
tileY - m_startBuildingTileY,
zoomLevel);
});
connect(m_request, &OSMRequest::mapsDataReady, this, [this](const QByteArray &mapData, int tileX, int tileY, int zoomLevel){
emit mapsDataReady(mapData, tileX - m_startBuildingTileX,
tileY - m_startBuildingTileY,
zoomLevel);
});
}
void OSMManager::setCameraProperties(const QVector3D &position, const QVector3D &right,
float cameraZoom, float minimumZoom, float maximumZoom,
float cameraTilt, float minimumTilt, float maximumTilt)
{
float tiltFactor = (cameraTilt - minimumTilt) / qMax(maximumTilt - minimumTilt, 1.0);
float zoomFactor = (cameraZoom - minimumZoom) / qMax(maximumZoom - minimumZoom, 1.0);
// Forward vector align to the XY plane
QVector3D forwardVector = QVector3D::crossProduct(right,
QVector3D(0.0, 0.0, -1.0)).normalized();
QVector3D projectionOfForwardOnXY = position
+ forwardVector * tiltFactor * zoomFactor * 50.0;
QQueue<OSMTileData> queue;
for ( int forwardIndex = -20; forwardIndex <= 20; ++forwardIndex ){
for ( int sidewardIndex = -20; sidewardIndex <= 20; ++sidewardIndex ){
QVector3D transferredPosition = projectionOfForwardOnXY
+ QVector3D(float(m_tileSizeX * sidewardIndex), float(m_tileSizeY * forwardIndex), 0.0);
addBuildingRequestToQueue(queue, m_startBuildingTileX + int(transferredPosition.x() / m_tileSizeX),
m_startBuildingTileY - int(transferredPosition.y() / m_tileSizeY));
}
}
const QPoint projectedTile{m_startBuildingTileX + int(projectionOfForwardOnXY.x() / m_tileSizeX),
m_startBuildingTileY - int(projectionOfForwardOnXY.y() / m_tileSizeY)};
auto closer = [projectedTile](const OSMTileData &v1, const OSMTileData &v2) -> bool {
return v1.distanceTo(projectedTile) < v2.distanceTo(projectedTile);
};
std::sort(queue.begin(), queue.end(), closer);
m_request->getBuildingsData( queue );
m_request->getMapsData( queue );
}
void OSMManager::addBuildingRequestToQueue(QQueue<OSMTileData> &queue, int tileX, int tileY, int zoomLevel)
{
OSMTileData data{tileX, tileY, zoomLevel};
if ( !m_buildingsHash.contains(data) )
queue.append(data);
}
int OSMManager::tileSizeX() const
{
return m_tileSizeX;
}
int OSMManager::tileSizeY() const
{
return m_tileSizeY;
}
bool OSMManager::isDemoToken() const
{
return m_request->isDemoToken();
}
void OSMManager::setToken(const QString &token)
{
m_request->setToken(token);
}
QString OSMManager::token() const
{
return m_request->token();
}
void CustomTextureData::setImageData(const QByteArray &data)
{
QImage image = QImage::fromData(data).convertToFormat(QImage::Format_RGBA8888);
setTextureData( QByteArray(reinterpret_cast<const char*>(image.constBits()), image.sizeInBytes()) );
setSize( image.size() );
setHasTransparency(false);
setFormat(Format::RGBA8);
}