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karthur1
Posts: 4,047
Registered: ‎04-27-2005
Message 1 of 5 (217 Views)
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Equation Curve - Show Transform

217 Views, 4 Replies
11-29-2013 08:11 AM

In the image below, I have an equation that I want to plot from -1 to +1.  Notice that it plots from 0 to 2.  If I click the "show transforms", it shows me that the plot is shifted 1.0 in X and 1.0 in Y.

 

2013-11-29_0936.png

 

Questions:

1. The only way that I can transform the equation is by clicking on the end of the curve away from 0,0 and drag it  (rotation only).  It is fixed at 0,0.  Is there a way to input the exact values in the x: and y: transforms. 

2.  Once I do rotate the curve, there is no way to get it exactly back to the original position.

3. I would like the line to plot with X:0 and Y:0 transforms, so it would show from -1,1- to 1,1.  Is this possible?

 

Thanks,

Kirk

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GlennChun
Posts: 112
Registered: ‎06-10-2004
Message 2 of 5 (188 Views)

Re: Equation Curve - Show Transform

11-29-2013 11:35 PM in reply to: karthur1

I can't reproduce the shift.  On my machine, the line is always plotted from (-1, -1) to  (1, 1), and that behavior is consistent in the Metric and English templates in Inventor 2013 and 2014.

 

yx.png

 

Glenn

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blair
Posts: 3,640
Registered: ‎11-13-2006
Message 3 of 5 (171 Views)

Re: Equation Curve - Show Transform

11-30-2013 08:27 AM in reply to: karthur1

My first guess is that your line is not constrained, the picture in the second post shows the line through the Origin Point allowing for constraint.

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*Expert Elite*
karthur1
Posts: 4,047
Registered: ‎04-27-2005
Message 4 of 5 (153 Views)

Re: Equation Curve - Show Transform

12-01-2013 02:40 PM in reply to: GlennChun

Glen,

Have no idea why it was plotting from 0,0 to 2,2 and not from -1,1 to 1,1.  Started a new part and that seems to be working fine now.  My second question was about modifying the transforms.  Once I click+drag the line, then edit the equation curve, the transforms show the amount the equation curve has been shifted/rotated.

 

2013-12-01_1628.png

 

I know that I can use a combination of teh "Move" and "Rotate" command to get it back where it should be, but it would be nice if it was possible to enter the amounts of the shift/rotation here.

 

Thanks

Employee
GlennChun
Posts: 112
Registered: ‎06-10-2004
Message 5 of 5 (143 Views)

Re: Equation Curve - Show Transform

12-01-2013 05:46 PM in reply to: karthur1

Hi Kirk,

 

The Show transform is a read-only operation.  The ability to edit the transformation sounds like a good idea.  You might want to post your idea to Inventor IdeaStation.

 

I usually constrain the equation curve to make the owner sketch fully constrained.  When it's hard to constrain the equation curve, I would just add the Fix constraint to the equation curve that has no transformation.

 

Glenn

 

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