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Why doesn't 'Snap to middle of 2 points' work the same way twice?

I wanted to draw a line up the middle of 2 cylinders (water tanks) using 'Snap to middle of 2 points'. It didn't work.

So, I created a horizontal line below the tanks as an experiment. I can successfully use 'Snap to middle of 2 points' on the line, but not when I attempt to use the centers of 2 cylinders.

Why?

Comments

  • Some codec issue prevents me from watching the screencast. But my guess is that you have DUCS switched on.

  • Roy:

    DUCS is on.

    Help me understand - how does that affect getting to the mid point between 2 points? Those points are in 3D space regardless of how the UCS is set.

    Also, I downloaded the screencast to my box from the web site and it plays on my box so the file is OK. It's an MP4 I created from a default screencast .webm file format using VLC Media Player. I do that conversion because when filing a bug report that system refuses to accept .webm files. Can you play other mp4 files?

  • Basically points are acquired in the current UCS. If the UCS changes during 'Snap to middle of 2 points' the resultant point will be unpredictable.

    I can usually play MP4 files.

  • Roy:

    OK - I get it. When the UCS changed it destroyed the first points reference leaving only the second point which is where the line started.

    I tried it without DUCS and it worked fine, so your educated guess was correct.

    Thank You

  • @Roy Klein Gebbinck said:
    Basically points are acquired in the current UCS. If the UCS changes during 'Snap to middle of 2 points' the resultant point will be unpredictable.

    Great !

    Ran into that too.

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Origami
Origami is the Japanese word for paper folding. ORI means to fold and KAMI means paper and involves the creation of paper forms usually entirely by folding.

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