Check that your object fits¶
Locate Objects shows volunteers one tile at a time, split into cells, and records which cells hold the object (source). Read this page before you create a project.
Questions about your object¶
- Is it one kind of object?
- Can a volunteer tell from one cell whether it's there?
- Does one object cover only a few cells? Check the Volunteer view in the area finder.
- Is the question only "is it there?", without "which kind is it?"
- Can you see it from above? A state such as illegal or abandoned can't be seen.
If every answer is yes, the object fits. If not, find it below.
Fit by kind of object¶
Good fit¶
Separate objects, such as solar panels, water tanks, boats, piles of waste, single trees and potholes. The marked cells show where each one is.
Partial fit¶
Areas, such as green spaces, tree groups and ponds. The marked cells show roughly where an area is, without its edge, so trace the edges in OpenStreetMap.
Poor fit¶
Lines, types, or two objects in one project. The answers are No, Single Feature and Multiple Features (source), so they record which cells hold an object, without its kind. Ask about one object per project, add types as an attribute, and map lines in OpenStreetMap.
Recommendations by object¶
The label column starts with the object_name, singular and lower case. Small objects need sharp imagery, so check a few tiles in the Volunteer view first.
| Object | Ask volunteers about | Label |
|---|---|---|
| Solar panels (good) | Solar panels | solar panel: one box per array of touching panels |
| Fishing boats (good) | Fishing boats | fishing boat: one box per boat |
| Water tanks (good) | Water tanks | water tank: one box per tank |
| Potholes (good) | Potholes | pothole: one box per pothole or damaged patch |
| Solid waste (good) | Piles of solid waste | solid waste: one box per pile |
| Landfills (partial) | Piles of solid waste | solid waste: one box per pile |
| Buildings (good) | Buildings | building: one outline per building |
| Roof material (poor) | Buildings | building: one outline, with roof:material |
| Building damage (poor) | Buildings | building: one outline, with damage |
| Temporary shelters (good) | Temporary shelters | temporary shelter: one box per shelter |
| Informal settlements (partial) | Buildings | building: one outline per building |
| Single trees (good) | Trees | tree: one outline, with natural: tree |
| Tree groups (partial) | Trees | tree: one outline, with natural: tree_group |
| Green spaces (partial) | Green spaces | green space: traced in OpenStreetMap |
| Ponds (partial) | Ponds | pond: traced in OpenStreetMap |
| Disease vector sites (poor) | Standing water, or tyres, one per project | standing water or tyre: one box each |
| Bins, benches, streetlights (poor) | One per project | bin, bench or streetlight: one box each |
| Two objects at once (poor) | One per project | One object_name per project |
| Drainage and flooding (poor) | Blocked drains, or standing water | blocked drain or standing water: one box each; drain lines from OpenStreetMap |
| Roads (poor) | Potholes | pothole: one box each; road lines from OpenStreetMap |
What to deliver shows examples of each label.
Name the project¶
Spell fAIrSwipe exactly as in the naming rule, then continue with Create a Locate project.