maps

Collision free map labelling

A schematic map of twenty two towns whose labels are placed by testing eight candidate positions around each dot in preference order, measuring the real text width with a hidden node and rejecting candidates that hit an already placed label, a marker or the canvas edge; cities are processed by importance, so the major ones win space and the minor ones keep only their dot, while a switch reveals the pile produced by naive placement next to a counter of readable labels per mode.