OSNAP "tangent" and "perpendicular" do not seem to work with an Ellipse !

Sakko
Sakko
in Other
Drawing a line from a point "tangent" or  "perpendicular"  (SNAP Modi) to an Ellipse does not work !
Using a Circle, both work fine.
Any ideas or suggestions ?

Comments

  • John Gaunt
    John Gaunt
    In my V11 they work, but you have to feel along the ellipse perimeter for the snap indicator to light up. It only shows when the focus is within range unlike say a line where snaps work hitting anywhere along its path. If it saw all those arcs within the ellipse as separate entities, snap results would be very unpredictable.
  • Robt Deans
    Robt Deans
    I can confirm OP's observation on v12.2.12.
  • Sakko
    Sakko

    I can confirm OP's observation on v12.2.12.


    I tested with Bricscad V11.2.4  Build 20921 !!
    The same negative result... OSNAP  "tangent" and "perpendicular" don't work !!

  • John Gaunt
    John Gaunt

    Mine is 11.4.6. Most snaps don't work with ellipses not created as polylines. I believe they never did, nor in Acad.

    It's a Setting, just type ellipse and you will find the option. I find the pline option generally more useful.

  • Sakko
    Sakko

    Mine is 11.4.6. Most snaps don't work with ellipses not created as polylines. I believe they never did, nor in Acad.

    It's a Setting, just type ellipse and you will find the option. I find the pline option generally more useful.


    you mean the variable PELLIPSE...
    PELLIPSE = OFF  you get a real ellipse object ,  PELLIPSE = ON  you get a polyline
    The problem reported exists for PELLIPSE = OFF !
    In ACAD 2010,2011,2012 and 2013 the OSNAPS work fine !

  • John Gaunt
    John Gaunt

    Yes Pellipse is the variable. I can't remember when true ellipses offered more than quadrant and centre snaps in Icad/Bcad.

    I should admit R13 was about the last time I used Acad. I have 2 blocks created from rotated ellipses (originally in Acad) to use as LH & RH isometric circles for pipe ends - they are 'Pellipses' because I believe that's the first time I came across this issue.

    So for me while the snaps would be handy (as would a true centre snap for a Pellipse), it's apparently normal behaviour and that's the only solution I have found.

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