Markers, GCPs, scale bars

Articles on placing, managing, and cleaning up markers — the Metashape object that subsumes ground-control points (GCPs), check points, and reference fiducials.

For Metashape's own definitions, see the glossary. For the current Python API surface, see Metashape Python API Reference version 2.3.1, especially Metashape.Marker, Metashape.Marker.Projection, and Metashape.Marker.projections.

Articles

• Coded circular targets: 12-bit markers, printing, sizing, and the 14-bit / 16-bit / 20-bit family
• AprilTag detection — choosing a variant
• Programmatic marker placement and pinning
• Gray flags in marker detection: what they mean and how to remove them
• Removing "blue flag" marker projections cleanly

Coverage

This section is being built incrementally.