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Add image zoom level for 2D image, although it isn't quite correct.

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This commit is contained in:
Jon Beniston 2023-02-16 14:42:29 +00:00
parent 4fa132731b
commit 10ae237b73
1 changed files with 7 additions and 0 deletions
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7
plugins/channelrx/demodapt/aptdemodimageworker.cpp
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@ -706,6 +706,13 @@ void APTDemodImageWorker::sendImageToMap(QImage image)
swgMapItem->setImageTileNorth(m_tileNorth);
swgMapItem->setImageTileSouth(m_tileSouth);
// FIXME: This isn't correct. Possibly need to use different projection
double earthCircumference = 40075016.686;
double latitude = m_tileSouth + (m_tileNorth - m_tileSouth) / 2.0;
double scale = std::cos(Units::degreesToRadians(latitude));
double zoom = std::log2(earthCircumference * scale * selectedChannel.width() / 2926600) - 8;
swgMapItem->setImageZoomLevel(zoom);
MainCore::MsgMapItem *msg = MainCore::MsgMapItem::create(m_aptDemod, swgMapItem);
messageQueue->push(msg);
}