Curve scaling causes flat shape #47560

New Issue

Danny · 2016-02-25T10:47:20+01:00

Danny commented

2016-02-25 10:47:20 +01:00

System Information
Operating system: Windows 8
graphic card: NVIDIA GeForce GTX 670

also tested on:
OS: Linux CentOS 6.5
graphic card: Internal graphics card

Blender Version
Broken: 2.76b

Short description of error
When scaling a curve and increasing the Bevel Depth leads in a flat shape.

Exact steps for others to reproduce the error

After scaling a curve to align them on X Y or Z axes by pressing S + X , Y or Z + 0 an issue occures when I increase the Bevel Depth of the curve.
Basically it should be a 3D pipe but unfortunately it is flat. There is no depth on the axes on which the curve was scaled to.
Also the Cotnrol Points and Handles are fixed at the axes I scaled them to I and can't move them along the corresponding axes in Edit Mode.

Add a curve
Press S + X , Y or Z + 0
Increase the Bevel Depth of the curve in the Data Tab

curve-bug.blend

**System Information** Operating system: Windows 8 graphic card: NVIDIA GeForce GTX 670 also tested on: OS: Linux CentOS 6.5 graphic card: Internal graphics card **Blender Version** Broken: 2.76b **Short description of error** When scaling a curve and increasing the *Bevel Depth* leads in a flat shape. **Exact steps for others to reproduce the error** After scaling a curve to align them on X Y or Z axes by pressing **S** + **X** , **Y** or **Z** + **0** an issue occures when I increase the *Bevel Depth* of the curve. Basically it should be a 3D pipe but unfortunately it is flat. There is no depth on the axes on which the curve was scaled to. Also the *Cotnrol Points* and *Handles* are fixed at the axes I scaled them to I and can't move them along the corresponding axes in *Edit Mode*. - Add a curve - Press **S** + **X** , **Y** or **Z** + **0** - Increase the Bevel Depth of the curve in the Data Tab ![curve-bug.png](https://archive.blender.org/developer/F285775/curve-bug.png) [curve-bug.blend](https://archive.blender.org/developer/F285777/curve-bug.blend)

Danny commented

2016-02-25 10:47:20 +01:00

Changed status to: 'Open'

Danny commented

2016-02-25 10:47:20 +01:00

Added subscriber: @ObiDan

Campbell Barton commented

2016-02-25 22:42:23 +01:00

Added subscriber: @ideasman42

Campbell Barton commented

2016-02-25 22:42:23 +01:00

Changed status from 'Open' to: 'Archived'

Campbell Barton closed this issue

2016-02-25 22:42:23 +01:00

Campbell Barton self-assigned this 2016-02-25 22:42:23 +01:00

Campbell Barton commented

2016-02-25 22:42:23 +01:00

This isn't a bug. While we dont prevent this,
scaling objects to 0 on an axis is rarely useful and gives issues as you've noted.

This isn't a bug. While we dont prevent this, scaling objects to 0 on an axis is rarely useful and gives issues as you've noted.

NikoLeopold commented

2016-02-25 22:50:11 +01:00

Added subscriber: @NikoLeopold

NikoLeopold commented

2016-02-25 22:50:11 +01:00

Can confirm, but this is not a bug.
After you have scaled the whole curve object down to 0 along y, trying to scale 0 via the S manipulator will only multiply the value of 0 and not change anything.
You can set the scale manually from the Properties toolbar (press N) to something higher than 0.

Edit: seems i was too slow ;)

Can confirm, but this is not a bug. After you have scaled the whole curve object down to 0 along y, trying to scale 0 via the S manipulator will only multiply the value of 0 and not change anything. You can set the scale manually from the Properties toolbar (press N) to something higher than 0. Edit: seems i was too slow ;)

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Curve scaling causes flat shape #47560