Precondition:
The user has opened the plant layer.
Main success scenario:
The user places a new plant or moves a plant.
She gets a visual indication which places of the map are ideal (green), okay (orange), not suited (red) and occupied space (black) for the plant to be placed.
After placement is finished or gets aborted, the visual indication disappears.
Heatmap:
Transparent: If no data is available.
Orange: If green overlaps with orange.
Red: If red overlaps with orange.
Black: If black overlaps with red.
Alternative scenarios:
When the date in the timeline is changed, the heatmap gets recalculated.