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    Preventing an "Arc" from turning into a "Curve"

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    • ziiarZ Offline
      ziiar
      last edited by Gábor

      Hi. I'm having an issue with Arc geometry. I'm trying to add to an Arc without it loosing it's Arc properties and winding up as a "Curve".

      See attached for a better idea of what's going on.

      Any help would be appreciated.


      Arc.jpg

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      • pbacotP Offline
        pbacot
        last edited by

        Don't weld the arc to the line, to keep it a distinct arc. How does that affect texturing?

        MacOSX MojaveSketchUp Pro v19 Twilight v2 Thea v3 PowerCADD

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        • ziiarZ Offline
          ziiar
          last edited by

          It creates obvious seams on all the edges. Now if I keep the Arc part separate, it will work fine, but it means that the non-Arc part will require an extra quad. I will need many of these and am just trying to do what I can to keep the poly count down for optimization purposes.

          Now I've used the Quad Tools Plug-in before which could also solve the problem, but I would rather use the default texture tools because I will have a bit better control over scale.


          Capture.PNG

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          • pbacotP Offline
            pbacot
            last edited by

            I don't see how you get that result and not continuous texture. I guess you mean the added line is colinear with the last arc segment. You can break the arc at that segment end. Then the elongated segment will not hurt the arc. Not sure though what is wrong with a curve.

            MacOSX MojaveSketchUp Pro v19 Twilight v2 Thea v3 PowerCADD

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            • ziiarZ Offline
              ziiar
              last edited by

              Yes, the extra segment is collinear. It looks like leaving the arc alone is what I'm going to have to do even if it does add some unnecessary tris.

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              • Dave RD Offline
                Dave R
                last edited by

                If you think about it, adding a straight line segment to any arc, no matter whether in SketchUp or something else, results in something that isn't an arc.

                You shouldn't be getting any triangles with that shape, though.

                Etaoin Shrdlu

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                (THERE'S NO PLACE LIKE)

                G28 X0.0 Y0.0 Z0.0

                M30

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                • pbacotP Offline
                  pbacot
                  last edited by

                  This is what I mean, in the attached image. But I see what is going on with the texture now. Try using ThruPaint. Makes things easier.


                  Screen Shot 2014-06-12 at 3.37.20 PM.png

                  MacOSX MojaveSketchUp Pro v19 Twilight v2 Thea v3 PowerCADD

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                  • panixiaP Offline
                    panixia
                    last edited by

                    @pbacot said:

                    This is what I mean, in the attached image. But I see what is going on with the texture now. Try using ThruPaint. Makes things easier.

                    +1

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