= FDO RFC 71 - Serialize FdoGeometryType_CurveString in GML2 format =

This page contains a request for comments document (RFC) for the FDO Open Source project.  
More FDO RFCs can be found on the [wiki:FDORfcs RFCs] page.

== Status == 
 
||RFC Template Version||1.1||  
||Submission Date||May 20, 2016|| 
||Last Modified||Christine Bao - May 20, 2016|| 
||Author||Christine Bao|| 
||RFC Status||Ready For Review|| 
||Implementation Status|||| 
||Proposed Milestone||4.0.0|| 
||Assigned PSC guide(s)||Greg Boone|| 
||'''Voting History'''||(vote date)|| 
 
== Overview ==

This is a proposal to serialize FdoGeometryType_CurveString geometry into GML2 format. 

== Motivation ==

FdoGeometryType_CurveString is a geometry type in customer's data. When publishing this data to WFS in GML2 format, it ends up with exception. It's expected this can work properly.

== Proposed Solution ==

GML schemes are defined here http://schemas.opengis.net/gml/. Unlike GML3 which uses gml:ArcString to represent curve, GML2 does not have type for gml:ArcString. A solution is to use gml:LineString to simulate curve.

'''NOTE:'''

•	The curve will have some attribute lost when serialize to gml:LineString.

== Implications ==

In FdoGML212GeometrySerializer implement SerializeCurveString.

== Test Plan ==

Tested by customer and it's acceptable.