Subversion Repositories mkgmap

Last modification

• Rev 4761 2021-06-07 17:33:26
• Author: gerd

• Log message:

  add experimental code to implement new option --improve-overview
  
  For each multipolygon with holes(role=inner) that is visible in the overview map a second version is calculated for the max. resolution of the overview map. The Douglas-Peucker filter is used and small holes which would not appear anyway are removed. The second multipolygon is used to render the overview map levels.
  Expected effects:
  - much better overview map (almost no wrong
  - much smaller overview map
  - increased run time (depends on style and complexity of the multipolygons), ca. 10% for a map of Norway with the default style
  
  By default the option is switched off, this may change if feedback is positive.