Advanced Editing

Existing code

Vector Branch

Some of the following elements have already been implemented in the old vector branch.

See :

•  http://dev.openlayers.org/sandbox/vector/examples/EditingDemo.html
•  http://dev.openlayers.org/sandbox/vector/examples/wfs-T.html

Tim Sandbox

Future code must be based on Tim's code.

See:  http://dev.openlayers.org/sandbox/tschaub/feature/examples/modify-feature.html

Jachym Sandbox

Jachym Cepicky wrote some great code based on Tim's work to provide drag/add/remove vertices tools and snapping functionnality.

It has to be improved in some way but this is probably a good start.

The snapping implementation doesn't feel good to me though because it requires a server-side service.
No, it does not: the functions are designed, so that no server-side services are required. Empty method customSnap(event) is defined, which can be modified according to users needs (I use it for server-side snapping). -- Jachym

See:  http://www.bnhelp.cz/mapserv/pokusy/openlayers/digitalizace/

Detailed (Needed) Functionnalities

Drag Vertex

Add Vertex

Remove Vertex

Snapping

Create Island/Donut Polygons

Attribute management

Eeach feature should get new data: {} atribute, which could be used for attribute management. I have some nearly working example, just ask, if you are interested -- Jachym