Paste Surfaces

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Ribbon:	Roads Tab > Select Panel > Model Viewer Dropdown > Paste Surfaces Roads Tab > Modelling Panel > Model Builder Dropdown > Paste Surfaces Surfaces Tab > Create/Edit Panel > Paste Surfaces (not Civil 3D) Site Tab > Edit > Paste Surfaces (Civil 3D)
Model Viewer:	Outputs Tab > Paste Surfaces

Introduction

The Paste Surfaces command creates Civil Site Design Surfaces (with prefix PST-) by pasting multiple surfaces on top of each other.  Surface pasting can be reordered, with the last surface added replacing any triangulation of the previously added surfaces.  

Paste operations result in a triangulated surface supporting elevation shading and volume comparisons.

The form is modeless so it can be kept open while working in the drawing.

Managing Hide Boundaries and Discontinuous Surfaces

Paste surfaces can support the pasting of discontinuous surfaces.  Enabling discontinuous surfaces will respect all hide boundaries, so any surfaces pasted in that have a hide boundary will result in a hide boundary being applied to the pasted surface. 

An Infill Surface tool is included to allow users to force infill the hide boundary/ies with the triangulation prior to the paste.

If any of the surfaces included in a Pasted Surface are edited, use the Rebuild All button to recreate them.

Surface display is managed via the Toggle Display form.

Details

Upon selecting the command the following form will display. 

Surfaces	Lists all Paste Surfaces created and enables adding, deleting and rebuilding paste surfaces
List View	Lists all created Paste Surfaces.  In Civil Site Design, the surface created will be named with a prefix of PST- automatically.
Up/Down Arrows	Reorder Paste Surfaces.  This will affect the rebuild order.
Add Group	Create a new Paste Surface.  The Details frame will immediately update with the new Paste Surface details.
Delete Group	Delete the selected Paste Surface in the list view
Rebuild All	Rebuild all paste surfaces.
Details	Input controls for selected Paste Surface in the list view
Surface Name	Type in a name for the Paste Surface.
Enable discontinuous surfaces	Tick on if any surface included in the paste operations is discontinous, to ensure multiple boundaries of pasted surfaces are included.  Note: All Hide boundaries of all pasted surfaces are included in this situation.  The Infill Surface command can be used to force an infill of the hide boundary/ies.
Edge Calculation Method	Leave ticked on to use the exact triangulation of each surface pasted.  Otherwise on the points are used and the software will re-triangulate.
Apply as a hide boundary only	Tick on to hide triangulation for surface/s pasted onto the first surface in the list. Tick off to apply a full surface paste of all surfaces.
Apply codes to triangles	Assigned the design string codes to the triangulated points.  This will enable rendering control of the triangles in Model Viewer. Note: Uncoded triangle points (such as an existing surface created with the Create/Edit Surface command) will be issued with the code A or ZZZ.
Stacked surface mode	If surfaces in the do not share any common area (no overlap) then the boundary calculation can be simplified (and paste sped up) by ticking this option off. Default is to have this ticked on, allowing for pasting of overlapping surfaces
Auto boundary	Tick on to ensure that the pasted surface result is a 'shrinkwrap' boundary around the pasted surface areas Tick off to apply triangulation between the pasted surfaces with no boundaries applied to the final surface.
Pasted Surface List	Lists all surfaces included in the paste operation.
List of surfaces	Surfaces are pasted in order in the list.  Each surface pasted will replace the triangulation of the previous surface/s.
Up/Down Arrows	Reorder pasting of surfaces using the up/down arrows
Add Surface	Add a surface to the paste operation.  Select a surface from the form that displays.
Remove Surface	After selecting a surface in the list, click to delete the surface from the paste operation
Infill Surface	If Enable Discontinous Surfaces is ticked on, hide boundaries will be respected for all pasted surfaces.  This command will force infill the hide boundaries.  After selecting the following form will display:   Add Point Select a location graphically in the drawing where a hide boundary is being applied Remove Point Remove a location from the list of infill 'points' Apply Apply these points to the paste surface operation to infill hide boundaries.
Build/Update Surface	Creates/Updates the Paste Surface currently selected.
Close	Close the form.