Oh Interesting. I asked Gemini for you, and it replies:
Jeremy: in a Revit BIM model, what is the difference between a grid and a guide grid, please?
Gemini: In a Revit BIM model, grids and guide grids serve distinct purposes:
Grids:
- Model-based: Grids are fundamental to the 3D model. They define the primary structural and organizational framework of the building.
- 3D Alignment: They extend vertically and horizontally throughout the building, providing a consistent reference for aligning elements like walls, columns, and floors.
- Dimensioning:Grids serve as the basis for precise dimensions and coordinates within the model.
- Visibility: Grids are generally visible in 3D views and can be controlled in plan views.
Guide Grids:
- Sheet-based:Guide grids are specific to 2D sheet views.They are primarily used for organizing and aligning multiple views on a sheet.
- Layout and Presentation: They help ensure consistent spacing and alignment of floor plans, elevations, sections, and other views within the sheet layout.
- No Model Impact: Guide grids do not affect the 3D model geometry. They are purely a visual aid for sheet organization.
- Visibility: Guide grids are only visible within the sheet view where they are created.
In Summary:
- Grids: Define the 3D model structure.
- Guide Grids: Organize and align views on sheets.
Key Differences:
| Feature | Grids | Guide Grids |
|---|---|---|
| Scope | Model-wide | Sheet-specific |
| Purpose | 3D model organization and alignment | Sheet layout and view alignment |
| Impact | Influence model geometry | No impact on model geometry |
| Visibility | Visible in 3D views and controllable in plan views | Visible only in the associated sheet view |
I hope this explanation clarifies the distinction between grids and guide grids in Revit!