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Version: 3.4 (unreleased)

Tie Points

Right-click commands for Tie Points in the Data Tree.

Source resources: IDR_DT_TIEPOINT, IDR_DT_TIEPOINTGROUP.

Tie Points vs Ground Control Points

A tie point belongs to one mesh or point cloud and records a correction for it: this point on the model should be over there. Its targets are what Corrections → GCP on the mesh ribbon uses to move the mesh.

A Ground Control Point is the survey record — one identity per physical monument, with the accuracy the surveyor quoted — and it belongs to the project rather than to any one object.

They connect: an SfM workflow's Seed Mesh Tie Points from Ground Control turns measured control into a mesh's tie points, so you can register a mesh against a survey without re-picking anything.

Item Context Menu​

Right-click an individual tie point in the Data Tree.

Actions​

  • Navigate To — Navigate to the item in the 3D view (ID_POPUP_ITEM_GOTO)
  • Move Up in List — Move up in list (ID_TIEPOINT_MOVE_UP_LIST)
  • Move Down in List — Move down in list (ID_TIEPOINT_MOVE_DOWN_LIST)
  • Re-link Image — Re-link Image (ID_TIEPOINT_RELINKIMAGE)
  • Export — Export (ID_PROJEXP_EXPORT)
  • Delete — Delete this mesh from the project. (ID_POPUP_ITEM_DELETE)

Position submenu​

  • Copy Position — Copy position (ID_DEFAULTITEM_COPYPOSITION)
  • Paste Position — Paste position (ID_DEFAULTITEM_PASTEPOSITION)
  • Paste Target Position — Paste target position (ID_TIEPOINT_PASTETARGETPOSITION)

Group Context Menu​

Right-click the Tie Points parent group / list header in the Data Tree.

Actions​

  • Spreadsheet View — Spreadsheet View (ID_DEFAULTGROUP_SPREADSHEET)
  • Copy Tiepoint List — Copy tiepoint list (ID_TIEPOINTGROUP_COPYLIST)
  • Paste Tiepoint List — Paste tiepoint list (ID_TIEPOINTGROUP_PASTELIST)
  • Reset Target Positions — Reset target positions (ID_TIEPOINTGROUP_RESETTARGETPOSITION)
  • Re-link Images — Re-link Images (ID_TIEPOINTGROUP_RELINKIMAGE)

Import submenu​

  • From Cameras... — Import from cameras (ID_IMPORT_TIEPOINTS_FROM_CAMERAS)

Coordinate Conversion submenu​

  • Between Coordinate Systems (CRS) — Reproject the mesh from one coordinate reference system to another. (ID_CONVERTCOORDINATES_CRSTOCRS)