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    ⚠️ Important | Libfredo 15.6b introduces important bugfixes for Fredo's Extensions Update

    [API] Edge.other_vertex unexpected return value

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    • thomthomT Offline
      thomthom
      last edited by

      <span class="syntaxdefault"><br />edge1</span><span class="syntaxkeyword">.</span><span class="syntaxdefault">vertices<br /></span><span class="syntaxcomment">#=> [#<Sketchup;;Vertex;0xef6b57c>, #<Sketchup;;Vertex;0xeef8ce8>]<br /><br /></span><span class="syntaxdefault">edge2</span><span class="syntaxkeyword">.</span><span class="syntaxdefault">vertices<br /></span><span class="syntaxcomment">#=> [#<Sketchup;;Vertex;0xef3821c>, #<Sketchup;;Vertex;0xeea2eb0>]<br /><br /></span><span class="syntaxdefault">edge2</span><span class="syntaxkeyword">.</span><span class="syntaxdefault">other_vertex</span><span class="syntaxkeyword">(</span><span class="syntaxdefault"> edge1</span><span class="syntaxkeyword">.</span><span class="syntaxdefault">start </span><span class="syntaxkeyword">)<br /></span><span class="syntaxcomment">#<Sketchup;;Vertex;0xef3821c><br /></span><span class="syntaxdefault"></span>
      

      😲

      No errors raised. Not even Nil returned.

      Beware!

      Thomas Thomassen — SketchUp Monkey & Coding addict
      List of my plugins and link to the CookieWare fund

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      • Chris FullmerC Offline
        Chris Fullmer
        last edited by

        Wait, what? I tihnk I'm mis-reading what you've written. It looks like the 3rd line of code edge2.other_vertex( edge1.start ) returned a vertex object #<Sketchup::Vertex:0xef3821c>, which is the expected behavior. ❓

        Lately you've been tan, suspicious for the winter.
        All my Plugins I've written

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        • Chris FullmerC Offline
          Chris Fullmer
          last edited by

          Ahh, I see it now. you passed edge2 one of edge1's vertices, so it should not have found the partner to that vertex on edge2. Yikes! Good catch.

          Lately you've been tan, suspicious for the winter.
          All my Plugins I've written

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          • thomthomT Offline
            thomthom
            last edited by

            Aye!

            If you are dealing with vertices, and you create a bug where you mix up your vertex references you might not notice it immediately as this method happily returns the first vertex in the edge which isn't the one pass in the argument. Garbage in - garbage out.

            Thomas Thomassen — SketchUp Monkey & Coding addict
            List of my plugins and link to the CookieWare fund

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