Offsetsrf Failure On Complex Polysurface

Offsetsrf Failure On Complex Polysurface Examples
Offsetsrf Failure On Complex Polysurface Definition
Offsetsrf Failure On Complex Polysurface Meaning

Complex vertices (ones with more than three edges) can be problematic, especially in shelling and sharp corner offsets and where some, but not all, of the surfaces at the vertex offset apart. OffsetSrf on polysurfaces with naked edges, where the naked edges make concave boundaries will not work correctly. 2 days ago Jul 26, 2009 r/rhino This community is for professional, student, and hobbyist users of McNeel's Rhinoceros 3d modeling software and the Grasshopper generative modeling plug-in. 'cap' will tell rhino to try to close an open polysurface but it often cannot fix complex holes. 0 tutorial shows how to create complex surface shapes using the. Sep 17, 2015 Complex vertices (ones with more than three edges) can be problematic, especially in shelling and sharp corner offsets and where some, but not all, of the surfaces at the vertex offset apart. OffsetSrfon polysurfaces with naked edges, where the naked edges make concave boundaries will not work correctly.

Where can I find this command?

Toolbars

Menus

Solid

Offset

Surface

Offset Surface

The OffsetSrf command copies a surface or polysurface so that locations on the copied surface are the same specified distance from the original surface.

Steps

1.	Select a surface or polysurface.

2.	Type the offset distance, and press Enter.

Options

Distance

Specifies a distance for the offset.

Corner

Round

Creates a fillet at sharp corners in the original surface.

Sharp

Maintains the sharp corner when the original surface has a sharp corner.

FlipAll

Flips the offset direction of all selected surfaces. Arrows indicate the positive offset direction.

Solid

Makes a closed solid from the input and offset surfaces by lofting a ruled surface between all of the matching edges.

Loose (Surfaces only)

The resulting surface point structure is identical to the original surface.

Tolerance

Sets the tolerance for the offset surface. Type 0 to use the default tolerance.

BothSides

Draws the offset on both sides of the original.

DeleteInput

Yes

Deletes the original geometry.

Retains the original geometry.

Note

●	Positive values offset in the direction the arrows. Negative values offset the other way.

●	When a plane, torus, sphere, open cylinder, or open cone surface is offset, the resulting surface is exact. Free-form surfaces are offset to within the value of the Tolerance option.

●

When offsetting surfaces are joined that are part of a polysurface, there is no guarantee that the offset surfaces will also join into another polysurface. For example, offsetting the six sides of a box will not result in a larger closed box. It will return six separate surfaces with gaps between the edges.

●	The OffsetSrf command does not maintain the overall structure of the starting polysurface in the offsets. Each surface offsets as an individual object.

Troubleshoot shelling

Shell and OffsetSrf for polysurfaces are works in progress. There are several known problem areas:

●

Singular surfaces can cause problems, especially when the offset of the surface must be extended at the singularity. The extensions are done in OffsetSrf (Corner=Sharp) and shelling, which always uses sharp corners. These extensions happen when the offsets of adjacent surfaces come apart. Also, cone-like singularities cause problems in all cases.

Offsetsrf Failure On Complex Polysurface

●	Complex vertices (ones with more than three edges) can be problematic, especially in shelling and sharp corner offsets and where some, but not all, of the surfaces at the vertex offset apart.

●	OffsetSrf on polysurfaces with naked edges, where the naked edges make concave boundaries will not work correctly.

●	If faces adjacent to the removed faces offset in such a way that the removed face must be extended to fill in the gap, it will fail.

●	Any surface whose offset self-intersects will cause a problem.

Toolbar	Menu
Solid Surface Offset Surface

Steps

Select a surface or polysurface.

Infinite Plane: Type IP for InfinitePlane options.

Type the offset distance, and press Enter.

Offsetsrf failure on complex polysurface work

Command-line options
Distance	Sets the offset distance.
Corner	Specifies how offset corner continuity handled. These options only apply if the offset direction is to the 'outside' as shown in the image. Sharp Curves offset to the outside of a corner will be extended to meet at sharp corners with position (G0) continuity. Round Curves offset to the outside of a corner will be filled with arc segments with tangent (G1) continuity.
FlipAll	Flips the offset direction of all selected surfaces. Arrows indicate the positive offset direction. Note: This option is not available when any of the selected objects is a polysurface.
Tolerance	Sets the tolerance for the offset surface. Type 0 to use the default tolerance.
BothSides	Draws the offset on both sides of the original.
DeleteInput	Yes Deletes the original geometry. No Retains the original geometry.

Note

Positive values offset in the direction of the arrows. Negative values offset the other way.
When a plane, torus, sphere, open cylinder, or open cone surface is offset, the resulting surface is exact. Free-form surfaces are offset to within the value of the Tolerance option.
When offsetting a polysurface with free-form sub-surfaces, the results might have some surfaces missing.
The output object adopts the rendering material from the input object.