// A ShapeEncoder that encode all standard S2Shape types, preferring
// compact (but slower) encodings. For example, points that have been snapped
// to S2CellId centers will be encoded using at most 8 bytes.
//
// REQUIRES: "encoder" uses the default constructor, so that its buffer
// can be enlarged as necessary by calling Ensure(int).
public static bool CompactEncodeShape(S2Shape shape, Encoder encoder)
{
var tag = shape.GetTypeTag();
if (tag == S2Shape.TypeTag.kNoTypeTag)
{
System.Diagnostics.Debug.WriteLine("(DFATAL) Unsupported S2Shape type: " + tag);
return(false);
}
// Update the following constant when adding new S2Shape encodings.
System.Diagnostics.Debug.Assert(tag < S2Shape.TypeTag.kNextAvailableTypeTag);
shape.Encode(encoder, CodingHint.COMPACT);
return(true);
}