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It seems that you must use the Dissolve tool, based on a common attribute. http://resources.arcgis.com/en/help/main/10.1/index.html#//00170000005n000000


You are probably looking for the Define Projection tool (under Data Management, Projections and Transformations). Unlike Project, which will transform from one coordinate system to another (e.g. -119.789° becomes some large number of meters), Define Projection changes the coordinate system for the data itself and is appropriate to use when ArcMap is ...


Thanks @whuber for pointing me in the right direction. I found my answer here. I had to reproject the raster layer into World Mercator (EPSG 3395), and then load it back onto my map where OTF reprojection put it in the right spot. I tried Pseudo Mercator (EPSG 3857) and that seemed to work too.


I'm told that in the upcoming QGIS 2.6 when joining multiple layers via the JOINS option (Layer Properties > Joins), editing the attributes of one layer will immediately update the attributes of the joining layers so basically in real-time. If this is the case then you could create a duplicate of the same layer, save it as another shapefile, edit its ...


You can use QGIS' Delimited Text Layer support to add the layer to the map, at which point you can right-click the layer and select 'Save As...' to convert to Shapefile or other supported formats.


It works with this demo using your code So, how do you call init() and how your HTML look?

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