Diameter
| Toolbar | Menu |
|---|---|
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Analyze Diameter |
The Diameter command reports the diameter of a curve at a specified point.
Steps
-
Move the mouse cursor along a curve.
The Units pane on the status bar reports the diameter of the curve at the current cursor location.
-
Pick a point on the curve.
The diameter and radius report to the command-line.
If the diameter and radius return "infinite", the curve is linear (no curvature) at the picked location, or has the shape of a line or a polyline.
| Command-line options | |
|---|---|
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SelectCurve |
Limit the selection to a specified curve. Press Enter to select any curve. |
|
MarkDiameter |
Places a point object at the evaluated point on a curve and creates a curvature circle through that point. |
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Units |
Set the units for the length display. This option is only available if no objects are selected. |
|
Type subcrv to select part of a curve as input. |
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| Toolbar | Menu |
|---|---|
|
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Analyze Radius |
The Radius command reports the radius of a curve at a specified point.
Steps
-
Move the mouse cursor along a curve.
The Units pane on the status bar reports the radius of the curve at the current cursor location.
-
Pick a point on the curve.
The diameter and radius report to the command-line.
If the diameter and radius return "infinite", the curve is linear (no curvature) at the picked location, or has the shape of a line or a polyline.
| Command-line options | |
|---|---|
|
SelectCurve |
Limit the selection to a specified curve. Press Enter to select any curve. |
|
MarkRadius |
Places a point object at the evaluated point on a curve and creates a curvature circle through that point. |
|
Units |
Set the units for the length display. This option is only available if no objects are selected. |
|
Type subcrv to select part of a curve as input. |
|
Nesting the Length, Radius, and Distance commands
The Length, Radius, and Distance commands are nestable. This means that if Rhino is asking for a distance in a command, you can use these commands to measure another object or distance and the resulting value will be feed to the command as if you had typed the number.
Example using Offset
- Start the OffsetSrf command.
- At the prompt for the offset distance, type Length, Radius, or Distance, and press Enter.
- Select a curve.
The offset distance will be set to that value.
Example using Fillet
- Start the Fillet command.
- At the prompt for the radius, type Length, Radius, or Distance, and press Enter.
- Select a curve.
The fillet radius will be set to that value.