How to make a Grid Overlay of residences

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A Grid Overlay is useful for visualizing residences that require special consideration, restrictions, or protections. Such a Grid Overlay can be created by testing which locations have a defined size for residences.

Editor → Current Situation (Ribbon tab) → Overlays (Ribbon bar)
How to create a Grid Overlay of residences:
  1. Add an Average Overlay, configured so that:
    Name: Social residences
    Key KEY set to value: SOCIAL_UNIT_SIZE_M2
    Averaging distance attribute is 0
  2. Add an Average Overlay, configured so that:
    Name: Market residences
    Key KEY set to value: NORMAL_UNIT_SIZE_M2
    Averaging distance attribute is 0
  3. Add an Average Overlay, configured so that:
    Name: Luxury residences
    Key KEY set to value: LUXE_UNIT_SIZE_M2
    Averaging distance attribute is 0
  4. Add an Combo Overlay, configured so that:
    Name: Residences
    A: "Social residences" Overlay
    B: "Market residences" Overlay
    C: "Luxury residences" Overlay
    Formula: GT(ADD(A,B,C),0)
  5. Switch to the "Legend" tab, and activate the "custom legend".   
  6. Remove all legend entries of the Combo Overlay.
  7. Add an entry, configured so that:
    Name: Not residences
    value: 0
    Color: black
  8. Add an entry, configured so that:
    Name: Residences
    value: 1
    Color: lightgray

Notes

  • Although there are also "senior housing" and "student housing" categories of residences available, those are rarely used and as such not includes in the instructions. To add them, add 2 more Average Overlays with SENIOR_UNIT_SIZE_M2 and STUDENT_UNIT_SIZE_M2 respectively, add then to inputs D and E of the Combo Overlay, and expand the formula to include the D and E parameters: GT(ADD(A,B,C,D,E),0)

See also

API Endpoints

To edit the legend of an overlay, use the following events, with the boolean parameter set to false.

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