static WknMultiPoint ParseMultiPoint(byte[] wkb, ref int pos)
{
if (wkb[pos] != 1)
{
throw new Exception("Sorry, only Little Endian format is supported");
}
var type = BitConverter.ToUInt32(wkb, pos + 1);
if (type != (uint)WknGeometryType.WknMultiPoint)
{
throw new Exception("Invalid object type");
}
var nbPoints = BitConverter.ToUInt32(wkb, pos + 5);
pos += 9;
var points = new WknPoint[nbPoints];
for (var i = 0; i < nbPoints; ++i)
{
points[i] = ParsePoint(wkb, ref pos);
}
return(new WknMultiPoint(points));
}
static void AppendPoint(BinaryWriter wrt, WknPoint point)
{
wrt.Write(LittleEndian);
wrt.Write((uint)WknGeometryType.WknPoint);
wrt.Write(point.P.X);
wrt.Write(point.P.Y);
}