Snap to curve

Just found out that it is actually not possible to snap to curve vertex/handle. I would like to read 3D coordinates from curve/b-spline but keypoint snap only finds middle point. Also trying to snap line to point is not working, only modify tool is able to find nearest vertex. The curves are drawn through surveyed points so would like to snap only to real points. Is it so?

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  • I can't tell where it is that you can't snap to

  • Hi Oto,

    And now for curve?

    I think there is no such tool for curve element (11) available. It's not very often and old element type and I do not recall too many tools developed to with with the element (comparing to a number of tools working with B-splines).

    But when you need to know coordinates, you can use old Analyze element dialog, where vertices are listed.

    With regards,

      Jan

  • Hi Oto,

    Try the key-in:  EVALUATE CURVE

    This video shows the settings to use.

    Regards,
    Ron

    Answer Verified By: Oto 

  • It's not very often and old element type

    It is used very often and mostly is only allowed spline element type used as it provides best compatibility between file formats and  versions(Microstation, Map, GIS). That is question to Bentley why with each "improvement" Bsplines are less and less usable. Traditional curves has some drawbacks but less trouble than with broken implementation of B-splines. Most has no idea or need to know how to use these number of Bspline tools anyway. Curve vs Bsplines is like Tags vs Items+fields, real workflow vs experimental.

    use old Analyze element dialog, where vertices are listed.

    Or Microstation Basic... This doesn't help much as it is needed for snapping other elements to curve. Time to log another SR.