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What are Custom Objects in Forerunner?

Custom Objects are user-defined geospatial features that can represent any type of geographic data your organization needs to track. Unlike Properties (which are always address-based points), Custom Objects support any geometry type—points, lines, polygons, and more. Custom Objects enable Forerunner users to extend the platform beyond traditional property management to support infrastructure tracking, zone management, and any other geospatial use case.

Why Custom Objects Matter

Custom Objects provide flexibility to:
  • Track infrastructure like stormwater systems, utilities, roads, and critical facilities
  • Define zones and regions such as community boundaries, flood zones, or planning areas
  • Import existing GIS data from GeoJSON (your CSM can convert Shapefiles and other formats first)
  • Create custom schemas with exactly the fields your organization needs
  • Visualize any geometry including points, lines, areas, and multi-part features
  • Engage public users through the public website, where community members can view custom object details, submit records, and attach files
Custom Objects are a newer concept in Forerunner that significantly expands what you can track and manage beyond traditional properties. They enable cross-sector use cases from emergency management to infrastructure planning.

Key Features

Flexible Geometry Types

Custom Objects support all standard GIS geometry types:
  • Points: Individual locations (fire hydrants, signs, trees)
  • Lines: Linear features (roads, pipes, power lines)
  • Polygons: Areas (communities, flood zones, land parcels)
  • Multi-part geometries: Complex features with multiple components

Dynamic Field Structure

Unlike Properties with fixed address fields, Custom Objects have:
  • Label: The primary display name for each object
  • Fields: Attributes your CSM sets up for each object type, like Text, Number, Date, Checkbox, User, URL, Relationship, and Lookup fields
  • Editable values: On objects drawn in the app, fields marked as editable can be changed right in the info panel
  • Custom styling: Colors, icons, line widths, and opacity per object type

Bulk Import Workflow

Custom Objects are typically created through bulk import:
  1. Prepare GeoJSON data with your features (your CSM can convert a Shapefile or Geodatabase)
  2. Send the file to your CSM to load
  3. System processes and validates the data
  4. Objects appear on map and in tables
  5. Attachments (records, files, tasks) are preserved during re-imports
Custom objects can be drawn directly on the map from the web or mobile app, or imported in bulk from GeoJSON data. See Creating objects for details.

How Custom Objects Work

Object Types

Each set of Custom Objects belongs to an object type. For example:
  • “Fire Hydrants” object type containing individual hydrant objects
  • “Stormwater Systems” object type containing pipe and inlet objects
  • “Community Boundaries” object type containing neighborhood polygons
Object types define:
  • What fields all objects of that type will have
  • How objects are styled on the map (colors, icons, line styles)
  • Whether labels appear on the map
  • Display order and legend settings

Object Groups

Related object types can be organized into object groups for easier navigation and management. For example, you might create a “Stormwater Infrastructure” group containing:
  • Stormwater inlets
  • Stormwater pipes
  • Outfall structures
  • Drainage basins
Groups enable:
  • Organized navigation in the sidebar
  • Combined table views across multiple object types
  • Logical grouping of related features

Object Information Panel

Click any custom object on the map or in a table to open the Object Information Panel (OIP):
View object details including:
  • Object type and name (label)
  • Coordinates (interior point for areas)
  • All custom fields from your data
  • Geometry information

Importing Custom Objects

Supported Data Formats

Custom object imports use GeoJSON: GeoJSON:
  • Standard web-friendly geospatial format
  • JSON-based, human-readable
  • Supports all geometry types
  • Includes feature properties as fields
Shapefiles and other formats:
  • Your CSM can convert a Shapefile or Geodatabase to GeoJSON for you before importing
  • If you’re drawing a single object in the app, you can use Import from file with a GeoJSON or zipped shapefile

Import Process

1

Prepare your data

Ensure your GeoJSON includes:
  • Valid geometry in WGS 84 (EPSG:4326) projection
  • A source_id field for each feature (important for re-imports)
  • All attribute fields you want to track
  • Consistent field names and types
2

Upload data file

Send your CSM the file. They’ll load it into the object type and let you know when it’s on the map.
3

Import processing

Forerunner loads the features, matches them to any existing objects, and updates the map layer. The new data replaces the old data all at once.
4

Review and verify

After import completion:
  • Check objects appear on map
  • Verify fields display correctly in tables
  • Test filtering and search
  • Confirm styling and labels
Always include a stable source_id field in your import data. This identifier allows Forerunner to match features during re-imports, preserving all attachments (records, files, tasks) even when you update your data.

Re-Importing and Updates

When you re-import Custom Objects:
  • Matching by ID or shape: Objects are matched by source_id, or by how much their shapes overlap, and are updated (not recreated)
  • Attachments preserved: Records, files, tasks, and comments remain linked
  • Schema must match: New imports must have the same fields as existing data
  • Nothing gets lost: If an object with records, files, or tasks can’t be matched in the new file, the import stops with an error
Without stable source_id values, matching falls back to shape overlap, which can fail if geometries change. Always use stable identifiers in your source data.

Map Visualization

Styling Options

Custom Objects support rich styling configurations: For Points:
  • Icon selection from library
  • Icon size and color
  • Custom marker images
For Lines:
  • Line color and opacity
  • Line width
  • Dash patterns
For Polygons:
  • Fill color and opacity
  • Border color and width
  • Border opacity
Labels:
  • Toggle labels on/off per object type
  • Automatic label positioning
  • Collision detection

Layer Controls

Each custom object type appears as a separate map layer:
  • Toggle layers on/off in map controls
  • Control layer order (z-index)
  • Visibility based on zoom level
  • Legend showing all active layers

Common Use Cases

Infrastructure Management

Track stormwater systems, utilities, roads, bridges, and other physical assets

Zone Management

Define and monitor community boundaries, planning zones, or regulatory areas

Emergency Response

Map critical facilities, evacuation routes, and emergency resources

Environmental Monitoring

Track natural features, conservation areas, or environmental observations

Custom Object vs. Property

Understanding when to use each type: Use Properties when:
  • You’re tracking buildings or addresses
  • You need elevation certificates
  • You want manual entry through UI
  • You need parcel data integration
Use Custom Objects when:
  • You need line or polygon geometry
  • You’re importing existing GIS data
  • You need flexible field structure
  • You’re tracking non-address features

Limitations and Constraints

Schema Constraints

  • Fields in your source file must be flat key-value pairs (no nested objects or arrays)
  • Field names must be valid JSON keys
  • Your CSM sets up each object type’s fields, and can change them without re-importing

Import Constraints

  • Large imports (>10,000 features) may take significant processing time
  • Only one import per object type at a time
  • Import is atomic (all features succeed or all fail)
  • Maximum file size depends on system configuration

Editing

  • Objects created manually on web or mobile can have their label and geometry edited in the app
  • Objects brought in through a GIS import are updated by re-importing the source data
  • On manually created objects, fields marked as editable can be changed in the info panel by Creators and up. Other field values are updated by re-importing
In-app editing covers the label, geometry, and editable fields of manually created objects. Imported objects are maintained through re-import. See Editing a custom object.

Next Steps

Import Custom Objects

Learn how to prepare and import geospatial data

View and Search

Learn how to find and filter custom objects

Attach Records

Add records and files to custom objects