NAVSTREETS MapInfo – Null Geometry in Link Attribute Records

Symptom-first Title
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Null Geometry in Link Attribute Records Despite Existence in Map Data

Symptoms / Triggers
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1. Null Geometry Field: Link attribute record returns null geometry field when queried
2. Occurring in Specific Tiles: This issue is observed in specific tiles.
3. Data Not Found Locally: Attempts to query or render the link geometry using the tile’s local data return no results, but the attribute record is otherwise valid and complete.

Quick Answer
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The absence of geometry in a link attribute record does not indicate a data defect. It can be expected behavior in HERE tile-based data storage: the actual geometry is stored only once in the reference tile containing the feature’s southernmost (and westernmost, if applicable) shape point.

Step-by-Step Actions
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1. Use the Link Identifier: Identify the link using its unique reference or attribute ID provided in the affected record.
2. Determine the Reference Tile:

Find the link’s southernmost shape point (or westernmost if there's a tie).
Identify the tile that contains this geographic point, as this is the tile where the geometry will be stored.

1. Search for the Linked Geometry:

Query and access the appropriate reference (often adjacent) tile using the link ID.
Use the Map Object Identifier to look up the referenced geometry (e.g., a routing link or road geometry feature).

1. Validate the Attribute: Confirm the record is valid once the geometry is resolved. If the geometry cannot be located in the reference tile, proceed to the next step.
2. Report the Issue to HERE Support (if unresolved):

Provide the following details:
Product and version: NAVSTREETS MapInfo 2026 Q3
Country/region: Germany G3, Spain K3
Tile IDs
Link ID(s) / attribute record ID(s)
Sample records with null geometry
Expected vs actual result
Include links to the following documentation:
NDS Attribution
Feature Tile Assignment

Applies To
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Product: NAVSTREETS MapInfo
Version: 2026 Q3
Data Format: MapInfo
Data Packaging: HERE Tile-Based Distribution

Tags
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NAVSTREETS
MapInfo
Null Geometry
Reference Tile
Link Attribute
HERE Map Data
Geometry Storage

References
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NDS Attribution
* Feature tile assignment