...
a single box on the corner? (loc) : dynamic
entire background of the page? (size) : dynamic inputs
collapsable? dynamic (optional)
#-> What it needs to show?
different basemaps? not for now. satellite view only
land parcels in color? polygons selected by users are colored
external raster data? not
#-> What it needs to do?
draw point, circle, polygon and rectangle ? a point button, a poly button and a clear button
draw multiple shape at the same time ? yes
calc area, perimeter etc? area