Neatbo.

Geometry deliverables need explicit metrics

Read track distances, deviation bounds, region boundaries and STL components under their declared measurement models before passing files onward.

Neatbo editorialUpdated 4 min read

Distance depends on its geometry model

A spherical horizontal track length differs from terrain distance, and a local planar deviation is not a global geodesic guarantee. Keep the declared radius, projection extent and segment boundaries with the report.

Read each report under its declared model
DeliverableRuleRetained evidence
GPX profileHorizontal sphere, separate segmentsComplete point metrics
Simplified GPXLocal planar error and endpoint constraintsOriginal nodes and retained indices
Region membershipValidated planar rings and explicit boundary policyAll matches and original CSV columns
STL component ZIPExact shared whole edgesTriangle blocks/tokens and source indices

A lower point count still needs an error result

A device limit can require fewer points than an error tolerance allows. Preserve the measured deviation and treat an unmet required tolerance as failure rather than quietly delivering a poorer route.

A boundary is a policy choice

Points on a polygon edge can be included or excluded. Holes and overlapping regions need equally explicit handling. Preserve the selected policy with the CSV so a second import can reproduce its assignments.

A component is defined by shared edges

Two STL parts can touch at a vertex without belonging to the same edge-connected component. Exact original coordinates avoid accidentally welding nearby triangles, but they do not repair a damaged mesh. Review the source-index map with the extracted pieces.

  • Check the declared coordinate model and supported extent.
  • Keep the full report with the delivered file.
  • Retain originals before importing simplified tracks or split meshes.

References

Tools used in this article

GPX distance and elevation profile →Plot local GPX elevation against per-segment horizontal distance and export exact point metrics.GPX point-budget simplification →Reduce GPX tracks to a specified total point budget while preserving original nodes and segment endpoints.Assign CSV points to GeoJSON regions →Assign local CSV coordinates to Polygon or MultiPolygon regions with explicit hole, boundary and multiple-match policies.Split disconnected STL components →Split binary or ASCII STL by exact shared-edge connectivity while retaining original coordinates, normals and triangle data.