= !MapGuide RFC 108 - Support Watermark =

This page contains a change request (RFC) for the !MapGuide Open Source project.
More !MapGuide RFCs can be found on the [wiki:MapGuideRfcs RFCs] page.


== Status ==

||RFC Template Version||(1.0)||
||Submission Date|| July 30,2010 ||
||Last Modified|| Buddy Hu, July 30,2010 ||
||Author|| Buddy Hu||
||RFC Status|| Draft||
||Implementation Status||(pending)||
||Proposed Milestone|| 2.3 ||
||Assigned PSC guide(s)||(when determined)||
||'''Voting History'''||(vote date)||
||+1||||
||+0||||
||-0||||
||-1||||
||no vote|| ||

== Overview ==

This RFC updates MapGuide to support Watermark.

== Motivation ==

Some customers complaint that there is no standard way to add watermark to the Map definition.

== Proposed Solution ==

1.      Use the symboldefinition to define the content of watermark. The watermark supports text and image.

2.	Create a new resource type  for watermark. This resource reference the symboldefinition and define the position, rotation and transparency of watermark. Add a new XSD file to define the watermark, and the !MdfModel and !MdfParser are needed to updated about this change. 

3.      Support inlining the watermark in mapdefinition and layerdefinition.

4.	User can use watermark by referencing it from map and layer. The mapdefinition and the layerdefinition will be extented to reference the optional watermark resource. The Layerdefinition and Mapdefinition can reference multiple watermark resources. 

5.	Change the render logic for map. When all the layers have been rendered and the renderer hasn’t output the result, render the watermark into the result.

Please refer to the attachment to find the schema of WatermarkDefinition and the updated schemas of LayerDefinition/MapDefinition.

== Implications ==

MapGuide Mastro should update to add watermark into a Map and Layer.

== Test Plan ==

Build/Run on Windows/Linux 

== Funding / Resources ==

Supplied by Autodesk