Potlatch 2/Developer Documentation/Layering

Each data layer (whether a vector background layer or the main map) has a MapPaint object. Its children are as follows

• Rendering layer -5 (equivalent to OSM layer=-5)
  • Fill paint sprite (child 0)
  • Casing paint sprite (child 1)
  • Stroke paint sprite (child 2)
    • Sublayer sprites (added as required)
  • Names paint sprite (child 3)
• Rendering layer -4 as above
• and so on up to...
• Rendering layer +5
• Interaction layer -5
  • Way hit test (child 0)
  • Node hit test (child 1)
• Interaction layer -4
• and so on up to...
• Interaction layer +5