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Revit coordinate systems for the rest of us

Revit coordinate systems for the rest of us. Usual suspects. 4 degrees of freedom. Pseudoazimuthal projection. Local scale factor. Geographic North. GIS. Curvature of the earth. Transverse Mercator. The Internal Coordinate System. The Project Coordinate System.

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Revit coordinate systems for the rest of us

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  1. Revit coordinate systems for the rest of us

  2. Usual suspects

  3. 4 degrees of freedom Pseudoazimuthal projection Local scale factor Geographic North GIS Curvature of the earth Transverse Mercator

  4. The Internal Coordinate System

  5. The Project Coordinate System

  6. The Shared Coordinate System

  7. The Project Coordinate System

  8. The Shared Coordinate System

  9. The Shared Coordinate System

  10. Spot Coordinates

  11. Spot Coordinates

  12. Spot Coordinates • Shared - Will report the X, Y (and Z) distance of a point from the origin of the current shared system. • Project - Will report the X, Y (and Z) distance of a point from the current location of the PBP. • Relative - Will report the X, Y (and Z) distance of a point from the fixed origin the Project Startup Point.

  13. Spot Elevation

  14. Spot Elevation

  15. Spot Elevation • Shared - Will report the Z distance of a point from the origin of the current shared system. • Project - Will report the Z distance of a point from the current location of the PBP. • Relative - Will report the Z distance of a point from a specified relative base level!!!

  16. Spot Elevation

  17. Spot coordinates – VS Spot elevations

  18. Common Operations - Coordinates

  19. Common Operations - Position

  20. Rotating Project North - It is not

  21. Rotating Project North - It is not

  22. Rotating Project North - It is not

  23. Tips Model close to the True Origin (20 mile radius) Select a good Project North of your preference as you’d like most plans to appear on sheets. The speed of the operation will give a clue as to what has occurred. Everything is modelled (even detail items and views) to the internal system ie: moving either the SP or the PBP will not move detail elements relative to model elements or crop boundaries, views, datums etc. Stay within the 20 mile radius with your models.

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