docs: add quick summary page about GCP workflow

hotosm · Dec 11, 2024 · 6b23508 · 6b23508
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diff --git a/docs/images/diagrams/dtm-gcp-workflow.jpg b/docs/images/diagrams/dtm-gcp-workflow.jpg
diff --git a/docs/manuals/ground-control-points.md b/docs/manuals/ground-control-points.md
@@ -0,0 +1,16 @@
+# Ground Control Points
+
+Ground Control Points are simply a way of mapping a known coordinate
+in the real world (ideally in very accurate coordinates such as
+[ECEF](https://en.wikipedia.org/wiki/Earth-centered,_Earth-fixed_coordinate_system)),
+to a pixel on an image for georeferencing.
+
+When multiple GCPs are used together in the final stitching of drone flight
+imagery together, the final georeferencing should be very accurate.
+
+Further details can be found on the OpenDroneMap
+[docs page about GCPs](https://docs.opendronemap.org/gcp)
+
+## Our Workflow
+
+![](../images/diagrams/dtm-gcp-workflow.jpg)
diff --git a/mkdocs.yml b/mkdocs.yml
@@ -76,6 +76,7 @@ nav:
       - The Team: about/team.md
   - User Manuals:
       - Flightplans: manuals/generate-flightplans.md
+      - Ground Control Points: manuals/ground-control-points.md
   - Developer Guide:
       - Setup: dev/setup.md
   - Timeline: timeline.md