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Make the source projection of JNX and KMZ maps selectable

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This commit is contained in:
Martin Tůma
2020-12-24 16:33:17 +01:00
parent 50d4ca1690
commit dde8e9a22c
13 changed files with 222 additions and 71 deletions
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70
src/map/jnxmap.cpp
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@ -84,15 +84,6 @@ bool JNXMap::readTiles()
}
}
QByteArray guid;
if (!(readValue(dummy) && readString(guid)))
return false;
/* Use WebMercator projection for nakarte.tk maps */
if (guid == "12345678-1234-1234-1234-123456789ABC")
_projection = Projection(PCS::pcs(3857));
else
_projection = Projection(GCS::gcs(4326));
_zooms = QVector<Zoom>(lh.size());
for (int i = 0; i < lh.count(); i++) {
Zoom &z = _zooms[i];
@ -104,21 +95,22 @@ bool JNXMap::readTiles()
z.tiles = QVector<Tile>(l.count);
for (quint32 j = 0; j < l.count; j++) {
Tile &tile = z.tiles[j];
qint32 top, right, bottom, left;
quint16 width, height;
if (!(readValue(top) && readValue(right) && readValue(bottom)
&& readValue(left) && readValue(width)
&& readValue(height) && readValue(tile.size)
&& readValue(tile.offset)))
if (!(readValue(tile.top) && readValue(tile.right)
&& readValue(tile.bottom) && readValue(tile.left)
&& readValue(tile.width) && readValue(tile.height)
&& readValue(tile.size) && readValue(tile.offset)))
return false;
RectD rect(_projection.ll2xy(Coordinates(ic2dc(left), ic2dc(top))),
_projection.ll2xy(Coordinates(ic2dc(right), ic2dc(bottom))));
RectC llrect(Coordinates(ic2dc(tile.left), ic2dc(tile.top)),
Coordinates(ic2dc(tile.right), ic2dc(tile.bottom)));
RectD rect(_projection.ll2xy(llrect.topLeft()),
_projection.ll2xy(llrect.bottomRight()));
if (j == 0) {
ReferencePoint tl(PointD(0, 0), rect.topLeft());
ReferencePoint br(PointD(width, height), rect.bottomRight());
ReferencePoint br(PointD(tile.width, tile.height),
rect.bottomRight());
z.transform = Transform(tl, br);
}
@ -143,6 +135,7 @@ JNXMap::JNXMap(const QString &fileName, QObject *parent)
_valid(false)
{
_name = QFileInfo(fileName).fileName();
_projection = Projection(GCS::gcs(4326));
if (!_file.open(QIODevice::ReadOnly)) {
_errorString = fileName + ": " + _file.errorString();
@ -267,3 +260,44 @@ void JNXMap::draw(QPainter *painter, const QRectF &rect, Flags flags)
max[1] = rr.bottom();
tree.Search(min, max, cb, &ctx);
}
void JNXMap::setInputProjection(const Projection &projection)
{
if (projection == _projection)
return;
_projection = projection;
for (int i = 0; i < _zooms.size(); i++) {
Zoom &z = _zooms[i];
z.tree.RemoveAll();
for (int j = 0; j < z.tiles.size(); j++) {
Tile &tile = z.tiles[j];
RectC llrect(Coordinates(ic2dc(tile.left), ic2dc(tile.top)),
Coordinates(ic2dc(tile.right), ic2dc(tile.bottom)));
RectD rect(_projection.ll2xy(llrect.topLeft()),
_projection.ll2xy(llrect.bottomRight()));
if (j == 0) {
ReferencePoint tl(PointD(0, 0), rect.topLeft());
ReferencePoint br(PointD(tile.width, tile.height),
rect.bottomRight());
z.transform = Transform(tl, br);
}
QRectF trect(z.transform.proj2img(rect.topLeft()),
z.transform.proj2img(rect.bottomRight()));
tile.pos = trect.topLeft();
qreal min[2], max[2];
min[0] = trect.left();
min[1] = trect.top();
max[0] = trect.right();
max[1] = trect.bottom();
z.tree.Insert(min, max, &tile);
}
}
}