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Map markers and clusters in Tractorscope

Map markers and clusters help display location data without overwhelming the viewer.

Markers

Markers are useful for individual locations such as stores, events, venues, assets, or customers.

Clusters

Clusters group dense point sets together. Use clusters when many points appear in the same area.

SQL shape

Return latitude and longitude fields, plus useful label or tooltip fields:
select
  latitude,
  longitude,
  customer_name,
  account_value
from customers
where latitude is not null
  and longitude is not null
select
  latitude,
  longitude,
  customer_name,
  account_value
from customers
where latitude is not null
  and longitude is not null

Tips

  • Filter map data before rendering very large point sets.
  • Use clusters for dense data.
  • Use markers for important individual locations.
  • Include descriptive fields for tooltips.

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