Where can I find this command?
The Rebuild command reconstructs selected curves or surfaces to a specified degree and control point number.
Steps
Select the curves or surfaces.
To rebuild curves
| 1. | Click Preview to see what the rebuilt curves will look like. |
| 2. | When you are satisfied with the results, click OK. |
Note
| ● | Turn on control points and curvature graph to see the details of the curve structure. |
| ● | A group of curves will be rebuilt with curves of a specified degree and specified number of control points. The knot of the resulting curve more evenly spaced. To rebuild a curve with uneven knot spacing but a more accurate fit, use the FitCrv command. |
Rebuild options
PointCount
Reports in parentheses the current number and sets the number of control points in the result.
Degree
Reports in parentheses the current number and sets the degree of the curve.
When drawing a high-degree curve, the output curve will not be the degree you request unless there is at least one more control point than the degree.
DeleteInput
Deletes the original geometry.
Create new object on current layer
Creates the new objects on the current layer. Clear this check box to place the new objects on the layer of the original curves.
Span count
Reports in parentheses the minimum number of spans and the proposed number of spans.
Maximum deviation
Reports the maximum deviation from the original curve when Preview is clicked.
Click to display a preview of the output.
If you change the settings, click again to refresh the display.
Command-line option
To access hidden command-line options
Type a hyphen in front of the command name: -Rebuild.
SelectMasterCurve
Select a curve to use as a template for setting the point count and degree.
To rebuild surfaces
| 1. | Click Preview to see what the rebuilt surfaces will look like. |
| 2. | When you are satisfied with the results, click OK. |
Rebuild Surface Options
Point count
U
Reports in parentheses the current number and sets the number of points in the u-direction.
V
Reports in parentheses the current number and sets the number of points in the v-direction.
Degree
U
Reports in parentheses the current number and sets the degree in the u-direction.
V
Reports in parentheses the current number and sets the degree in the v-direction.
Options
DeleteInput
Deletes the original geometry.
Current Layer
Creates the new surfaces on the current layer. Clear this checkbox to place the new surfaces on the layer of the original surfaces.
Retrim
Trims the rebuilt surface with the original trimming curves.
Maximum deviation
Reports the maximum deviation from the original surface.
The calculation tests how far away the new surface is at knot line intersections and half-way between knot lines. Conducts tests at knot line intersections and halfway between knot lines.
The display color indicates how far away the new surface is from the original. Points are green if the surface is within absolute tolerance, yellow if it is between tolerance and 10 times tolerance, and red if it is farther away than that.
The lines are 10 times longer than the measured deviation in the direction of the deviation.
Click to display a preview of the output.
If you change the settings, click again to refresh the display.
See also
Rhinoceros 5 © 2010-2015 Robert McNeel & Associates. 17-Sep-2015
