Point To Curve

CdricCd
CdricCd Altair Community Member
edited October 2020 in Community Q&A


Hello !

 

I have a little issue, might be very easy to fix for you guys ;)/emoticons/default_wink.png' srcset='/emoticons/wink@2x.png 2x' title=';)' width='20' />

 

I want to create a point to curve joint, so I declare the two bodies, the point and the curve. But when I start the simulation I've got this issue : 'ERROR: Param curve of PTCV joint [id=301001] not found!'

Like it doesn't find the curve, but all seem to be well create (see pic) : the blue bar has to translate along the red line, simple as that !

 

The curve is defined as in the pic. I tried every combinations with the properties without effect...

 

Thanks for the help guys !

 

 

 

 

<?xml version="1.0" encoding="UTF-8"?>issu.PNG

<?xml version="1.0" encoding="UTF-8"?>curve.PNG

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Answers

  • Altair Forum User
    Altair Forum User
    Altair Employee
    edited January 2018

    Hi,

     

    Can you please the .log file?

  • CdricCd
    CdricCd Altair Community Member
    edited November 2020

    Hi, here the log

    Unable to find an attachment - read this blog

  • Altair Forum User
    Altair Forum User
    Altair Employee
    edited January 2018

    Hi,

     

    Can you check whether curve is referenced in PTCV?

     

    I see there are two PTCV joints (from log  Reading   2 PTCV joints...
    ERROR: Param curve of PTCV joint [id=301001] not found!)

  • CdricCd
    CdricCd Altair Community Member
    edited January 2018

    My curve (Joint1) is well referenced in the advanced joint, see pic below.

     

    That's why I don't know why it can't make any link between the PTCV and this curve... The model is made 2 PTCV and 2 curves (1 curve for each PTCV)

     

     

    <?xml version="1.0" encoding="UTF-8"?>issue2.PNG

  • Altair Forum User
    Altair Forum User
    Altair Employee
    edited January 2018

    @CdricCd

     

    Yes but in log file it says one XY spline curve and 2 PTCV joints. Please check this. 

  • CdricCd
    CdricCd Altair Community Member
    edited January 2018

    I have two curves which are created with the entity curve, and these two curves are linked to each PTCV... Maybe it's not the correct entity for this kind of Joint ? I tried with Spline but PTCV can't detect splines when I have to select the curve...

  • Altair Forum User
    Altair Forum User
    Altair Employee
    edited January 2018

    Hi,

     

    Can you share the model file please?

     

    Use the file transfer link in my signature to share the files. 

  • CdricCd
    CdricCd Altair Community Member
    edited January 2018

    I'm not allowed to share my models but i created a very simple one with the same principle and the same issue...

     

    So I guess I don't use the joint properly...

    Unable to find an attachment - read this blog

  • Praful
    Praful
    Altair Employee
    edited January 2018

    Hi CdricCd - Could you open the XML file in a text editor and check if <Reference_ParamCurve statement corresponding to the Constraint_PTCV is available ? It is also possible that the curve has insufficient data. I think you might need atleast 4 or 5 data points for the curve to be written out.

     

    Regards

    Praful

     

  • Altair Forum User
    Altair Forum User
    Altair Employee
    edited January 2018

    HI @CdricCd

     

    Please see the warning message: 

    <?xml version="1.0" encoding="UTF-8"?>InsufficientData.PNG

  • CdricCd
    CdricCd Altair Community Member
    edited January 2018

    Thanks guys the problem was the number of points on the curve, I put 5 of them and it's alright !

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