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Added remaining missing units conversions

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This commit is contained in:
Martin Tůma 2018-01-21 10:18:15 +01:00
parent da220c4b62
commit 02e724fefb
1 changed files with 23 additions and 11 deletions
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34
src/map/geotiff.cpp
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@ -26,6 +26,7 @@
#define ProjectedCSTypeGeoKey 3072
#define ProjectionGeoKey 3074
#define ProjCoordTransGeoKey 3075
#define ProjLinearUnitsGeoKey 3076
#define ProjStdParallel1GeoKey 3078
#define ProjStdParallel2GeoKey 3079
#define ProjNatOriginLongGeoKey 3080
@ -212,15 +213,16 @@ bool GeoTIFF::readKeys(TIFFFile &file, Ctx &ctx, QMap<quint16, Value> &kv) const
return false;
switch (entry.KeyID) {
case GeographicTypeGeoKey:
case ProjectedCSTypeGeoKey:
case ProjCoordTransGeoKey:
case GTModelTypeGeoKey:
case GTRasterTypeGeoKey:
case GeographicTypeGeoKey:
case GeogGeodeticDatumGeoKey:
case ProjectionGeoKey:
case GeogPrimeMeridianGeoKey:
case GeogAngularUnitsGeoKey:
case ProjectedCSTypeGeoKey:
case ProjectionGeoKey:
case ProjCoordTransGeoKey:
case ProjLinearUnitsGeoKey:
if (entry.TIFFTagLocation != 0 || entry.Count != 1)
return false;
value.SHORT = entry.ValueOffset;
@ -274,7 +276,7 @@ const GCS *GeoTIFF::gcs(QMap<quint16, Value> &kv)
int pm = IS_SET(kv, GeogPrimeMeridianGeoKey)
? kv.value(GeogPrimeMeridianGeoKey).SHORT : 8901;
int au = IS_SET(kv, GeogAngularUnitsGeoKey)
? kv.value(GeogAngularUnitsGeoKey).SHORT : 9122;
? kv.value(GeogAngularUnitsGeoKey).SHORT : 9102;
if (!(gcs = GCS::gcs(kv.value(GeogGeodeticDatumGeoKey).SHORT, pm, au)))
_errorString = QString("%1+%2: unknown geodetic datum + prime"
@ -345,14 +347,24 @@ bool GeoTIFF::projectedModel(QMap<quint16, Value> &kv)
if (m.isNull())
return false;
AngularUnits au(IS_SET(kv, GeogAngularUnitsGeoKey)
? kv.value(GeogAngularUnitsGeoKey).SHORT : 9102);
LinearUnits lu(IS_SET(kv, ProjLinearUnitsGeoKey)
? kv.value(ProjLinearUnitsGeoKey).SHORT : 9001);
if (lu.isNull()) {
_errorString = QString("%1: unknown projection linear units code")
.arg(kv.value(ProjLinearUnitsGeoKey).SHORT);
return false;
}
Projection::Setup setup(
kv.value(ProjNatOriginLatGeoKey).DOUBLE,
kv.value(ProjNatOriginLongGeoKey).DOUBLE,
au.toDegrees(kv.value(ProjNatOriginLatGeoKey).DOUBLE),
au.toDegrees(kv.value(ProjNatOriginLongGeoKey).DOUBLE),
kv.value(ProjScaleAtNatOriginGeoKey).DOUBLE,
kv.value(ProjFalseEastingGeoKey).DOUBLE,
kv.value(ProjFalseNorthingGeoKey).DOUBLE,
kv.value(ProjStdParallel1GeoKey).DOUBLE,
kv.value(ProjStdParallel2GeoKey).DOUBLE
lu.toMeters(kv.value(ProjFalseEastingGeoKey).DOUBLE),
lu.toMeters(kv.value(ProjFalseNorthingGeoKey).DOUBLE),
au.toDegrees(kv.value(ProjStdParallel1GeoKey).DOUBLE),
au.toDegrees(kv.value(ProjStdParallel2GeoKey).DOUBLE)
);
_projection = Projection::projection(_gcs->datum(), m, setup);
}