# Orient Curve
## 
Orient On Curve
The OrientOnCrv command moves or copies and rotates objects along a curve using the curve direction for orientation.
### **Steps**
1. Select objects.
2. Pick a base point.
3. Select the orientation curve.
4. Pick a new base point on the curve
***
### **Command-line options**
**OnCurve**
Pick a base point on the curve. This allows moving the object along the curve while maintaining its orientation to the curve.
**Copy:** Specifies whether or not the objects are copied. A plus sign  appears at the cursor when copy mode is on.
The RememberCopyOptions command determines whether the selected option is used as the default.
**Flip:** Flips the direction of the oriented object on the target curve.
By default, the curve direction is used to orient the object.
**Perpendicular:** Orients the object perpendicular to the curve. The perpendicular plane is determined by the current construction plane when the base point is picked.
* **XFlip/YFlip:** Reverses the orientation relative to the original orientation to the construction plane.
* **Rotate:** Enter an angle or pick two reference points to rotate the object.
**SubCrv:** Type subcrv to select part of a curve as input.
***
For more information, please refer to the [Rhino documentation](https://docs.mcneel.com/rhino/8/help/en-us/commands/orientoncrv.htm).
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