'Convert from Coordinate object to a Point object in the defined projection'

def coordinateProj(self, coord):

    if (coord.zoom >= len(self.tile_dimensions)):
        raise TileStache.Core.KnownUnknown(('Requested    zoom    level    %d    outside    defined    resolutions.' % coord.zoom))
    p = self.unproject(Point(coord.column, coord.row), (1.0 / self.tile_dimensions[coord.zoom]))
    return p
