private static void WriteLineString(ILineString geom, WriteCoordinates writeCoordinates, GaiaExport gaiaExport, BinaryWriter bw)
{
var seq = geom.CoordinateSequence;
gaiaExport.WriteInt32(bw, seq.Count);
writeCoordinates(geom.CoordinateSequence, gaiaExport, bw);
}
private static void WritePolygon(IPolygon geom, WriteCoordinates writeCoordinates, GaiaExport gaiaExport, BinaryWriter bw)
{
gaiaExport.WriteInt32(bw, geom.NumInteriorRings + 1);
WriteLineString(geom.Shell, writeCoordinates, gaiaExport, bw);
for (var i = 0; i < geom.NumInteriorRings; i++)
{
WriteLineString(geom.GetInteriorRingN(i), writeCoordinates, gaiaExport, bw);
}
}
private static void WriteMultiPolygon(IGeometryCollection geom, WriteCoordinates writeCoordinates, GaiaExport gaiaExport, BinaryWriter bw)
{
gaiaExport.WriteInt32(bw, geom.NumGeometries);
for (var i = 0; i < geom.NumGeometries; i++)
{
bw.Write((byte)GaiaGeoBlobMark.GAIA_MARK_ENTITY);
gaiaExport.WriteInt32(bw, gaiaExport.CoordinateFlag | (int)GaiaGeoGeometry.GAIA_POLYGON);
WritePolygon((IPolygon)geom[i], writeCoordinates, gaiaExport, bw);
}
}
private static void WriteMultiLineString(IMultiLineString geom, WriteCoordinates writeCoordinates, GaiaExport gaiaExport, BinaryWriter bw)
{
gaiaExport.WriteInt32(bw, geom.NumGeometries);
for (var i = 0; i < geom.NumGeometries; i++)
{
bw.Write((byte)GaiaGeoBlobMark.GAIA_MARK_ENTITY);
gaiaExport.WriteInt32(bw, gaiaExport.CoordinateFlag | (int)GaiaGeoGeometry.GAIA_LINESTRING);
WriteLineString((ILineString)geom[i], writeCoordinates, gaiaExport, bw);
}
}
private static void WriteGeometry(IGeometry geom, GaiaExport gaiaExport, BinaryWriter bw)
{
WriteCoordinates writeCoordinates = SetWriteCoordinatesFunction(gaiaExport);
//Geometry type
int coordinateFlag = gaiaExport.CoordinateFlag;
int coordinateFlagNotValidForCompression = coordinateFlag > 1000000
? coordinateFlag - 1000000
: coordinateFlag;
switch (geom.GeometryType.ToUpper())
{
case "POINT":
gaiaExport.WriteInt32(bw, (int)(GaiaGeoGeometry.GAIA_POINT) | coordinateFlagNotValidForCompression);
WritePoint((IPoint)geom, writeCoordinates, gaiaExport, bw);
break;
case "LINESTRING":
gaiaExport.WriteInt32(bw, (int)GaiaGeoGeometry.GAIA_LINESTRING | coordinateFlag);
WriteLineString((ILineString)geom, writeCoordinates, gaiaExport, bw);
break;
case "POLYGON":
gaiaExport.WriteInt32(bw, (int)GaiaGeoGeometry.GAIA_POLYGON | coordinateFlag);
WritePolygon((IPolygon)geom, writeCoordinates, gaiaExport, bw);
break;
case "MULTIPOINT":
gaiaExport.WriteInt32(bw, (int)GaiaGeoGeometry.GAIA_MULTIPOINT | coordinateFlagNotValidForCompression);
WriteMultiPoint((IMultiPoint)geom, writeCoordinates, gaiaExport, bw);
break;
case "MULTILINESTRING":
gaiaExport.WriteInt32(bw, (int)GaiaGeoGeometry.GAIA_MULTILINESTRING | coordinateFlag);
WriteMultiLineString((IMultiLineString)geom, writeCoordinates, gaiaExport, bw);
break;
case "MULTIPOLYGON":
gaiaExport.WriteInt32(bw, (int)GaiaGeoGeometry.GAIA_MULTIPOLYGON | coordinateFlag);
WriteMultiPolygon((IMultiPolygon)geom, writeCoordinates, gaiaExport, bw);
break;
case "GEOMETRYCOLLECTION":
gaiaExport.WriteInt32(bw, (int)GaiaGeoGeometry.GAIA_GEOMETRYCOLLECTION | coordinateFlagNotValidForCompression);
WriteGeometryCollection((IGeometryCollection)geom, gaiaExport, bw);
break;
default:
throw new ArgumentException("unknown geometry type");
}
}
private static void WriteMultiPoint(IMultiPoint geom, WriteCoordinates writeCoordinates, GaiaExport gaiaExport, BinaryWriter bw)
{
var wi = gaiaExport.WriteInt32;
// number of coordinates
wi(bw, geom.NumGeometries);
// get the coordinate flag
var coordinateFlag = gaiaExport.CoordinateFlagUncompressed;
for (var i = 0; i < geom.NumGeometries; i++)
{
//write entity begin marker
bw.Write((byte)GaiaGeoBlobMark.GAIA_MARK_ENTITY);
//write entity marker
wi(bw, coordinateFlag + (int)GaiaGeoGeometryEntity.GAIA_TYPE_POINT);
//write coordinates
writeCoordinates(((IPoint)geom[i]).CoordinateSequence, gaiaExport, bw);
}
}
private static void WritePoint(IPoint geom, WriteCoordinates writeCoordinates, GaiaExport gaiaExport, BinaryWriter bw)
{
writeCoordinates(geom.CoordinateSequence, gaiaExport, bw);
}
private static void WritePoint(IPoint geom, WriteCoordinates writeCoordinates, GaiaExport gaiaExport, BinaryWriter bw)
{
writeCoordinates(geom.CoordinateSequence, gaiaExport, bw);
}
private static void WriteLineString(ILineString geom, WriteCoordinates writeCoordinates, GaiaExport gaiaExport, BinaryWriter bw)
{
var seq = geom.CoordinateSequence;
gaiaExport.WriteInt32(bw, seq.Count);
writeCoordinates(geom.CoordinateSequence, gaiaExport, bw);
}
private static void WritePolygon(IPolygon geom, WriteCoordinates writeCoordinates, GaiaExport gaiaExport, BinaryWriter bw)
{
gaiaExport.WriteInt32(bw, geom.NumInteriorRings + 1);
WriteLineString(geom.Shell, writeCoordinates, gaiaExport, bw);
for (var i = 0; i < geom.NumInteriorRings; i++)
WriteLineString(geom.GetInteriorRingN(i), writeCoordinates, gaiaExport, bw);
}
private static void WriteMultiPoint(IMultiPoint geom, WriteCoordinates writeCoordinates, GaiaExport gaiaExport, BinaryWriter bw)
{
var wi = gaiaExport.WriteInt32;
// number of coordinates
wi(bw, geom.NumGeometries);
// get the coordinate flag
var coordinateFlag = gaiaExport.CoordinateFlagUncompressed;
for (var i = 0; i < geom.NumGeometries; i++)
{
//write entity begin marker
bw.Write((byte)GaiaGeoBlobMark.GAIA_MARK_ENTITY);
//write entity marker
wi(bw, coordinateFlag + (int)GaiaGeoGeometryEntity.GAIA_TYPE_POINT);
//write coordinates
writeCoordinates(((IPoint)geom[i]).CoordinateSequence, gaiaExport, bw);
}
}
private static void WriteMultiLineString(IMultiLineString geom, WriteCoordinates writeCoordinates, GaiaExport gaiaExport, BinaryWriter bw)
{
gaiaExport.WriteInt32(bw, geom.NumGeometries);
for (var i = 0; i < geom.NumGeometries; i++)
{
bw.Write((byte)GaiaGeoBlobMark.GAIA_MARK_ENTITY);
gaiaExport.WriteInt32(bw, gaiaExport.CoordinateFlag | (int)GaiaGeoGeometry.GAIA_LINESTRING);
WriteLineString((ILineString)geom[i], writeCoordinates, gaiaExport, bw);
}
}
private static void WriteMultiPolygon(IGeometryCollection geom, WriteCoordinates writeCoordinates, GaiaExport gaiaExport, BinaryWriter bw)
{
gaiaExport.WriteInt32(bw, geom.NumGeometries);
for (var i = 0; i < geom.NumGeometries; i++)
{
bw.Write((byte)GaiaGeoBlobMark.GAIA_MARK_ENTITY);
gaiaExport.WriteInt32(bw, gaiaExport.CoordinateFlag | (int)GaiaGeoGeometry.GAIA_POLYGON);
WritePolygon((IPolygon)geom[i], writeCoordinates, gaiaExport, bw);
}
}
