val map: SpatialDataset?
SpatialDataset. Data-structure containing series of planar shapes and, optionally, associates data series (for example: names of States and their boundaries).
`geom_rect` will draw rectangles using bounding boxes of shapes.
All coordinates should be encoded as decimal degrees in WGS84 coordinate reference system.
Can be used with parameter 'mapJoin' for joining data and map coordinates.