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    [Plugin][$] RoundCorner - v3.4a - 31 Mar 24

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    • DATAKASHD Offline
      DATAKASH
      last edited by

      Please add 2 functions:

      1. Offset (without rounding)
      2. Offset with intersection (toggle)

      These functions are necessary for constructing subdivision topology
      (I hope you understand my idea, it's hard for me to explain the idea in a foreign language)


      wish1.jpg


      wish2.jpg

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      • Dave RD Offline
        Dave R
        last edited by

        @datakash said:

        Please add 2 functions:

        1. Offset (without rounding)
        2. Offset with intersection (toggle)

        These functions are necessary for constructing subdivision topology
        (I hope you understand my idea, it's hard for me to explain the idea in a foreign language)

        There are already extensions available that are designed to do what you are asking. How about using them instead of adding complexity to an existing tool. ThomThom's SubD would be a good place to start.

        Etaoin Shrdlu

        %

        (THERE'S NO PLACE LIKE)

        G28 X0.0 Y0.0 Z0.0

        M30

        %

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        • DATAKASHD Offline
          DATAKASH
          last edited by

          @dave r said:

          @datakash said:

          Please add 2 functions:

          1. Offset (without rounding)
          2. Offset with intersection (toggle)

          These functions are necessary for constructing subdivision topology
          (I hope you understand my idea, it's hard for me to explain the idea in a foreign language)

          There are already extensions available that are designed to do what you are asking. How about using them instead of adding complexity to an existing tool. ThomThom's SubD would be a good place to start.

          You did not understand me!
          I ask that RundСorner add Offset function [highlight=#ff4040:149q787k](Without rounding!)[/highlight:149q787k]
          And the function of intersection of edges, for the construction of stiffeners for modeling under SUBDIVISION (google — subdivision topology)

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          • Dave RD Offline
            Dave R
            last edited by

            Yes. I did understand you. There are already tools that do subdivision in SketchUp.

            Etaoin Shrdlu

            %

            (THERE'S NO PLACE LIKE)

            G28 X0.0 Y0.0 Z0.0

            M30

            %

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            • filibisF Offline
              filibis
              last edited by

              @datakash said:

              Please add 2 functions:

              1. Offset (without rounding)
              2. Offset with intersection (toggle)

              Those features exist in QuadFace Tools and it is advised here to use as well.
              Check below gif.


              Click to play. (Quadface offset for subdivision)

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              • DATAKASHD Offline
                DATAKASH
                last edited by

                @filibis said:

                @datakash said:

                Please add 2 functions:

                1. Offset (without rounding)
                2. Offset with intersection (toggle)

                Those features exist in QuadFace Tools and it is advised here to use as well.
                Check below gif.

                QFT does not make the offset of the desired edge.

                • Offset uneven (See the screen)
                • What if you do not have a ring? If there is no ring, the offset is not done!
                  Check below gif

                ss+(2017-08-21+at+08.36.31).png


                Roundcorner Only offset.gif

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                • fredo6F Offline
                  fredo6
                  last edited by

                  @DATAKASH

                  There was another request for that and it makes perfect sense.

                  This will come in due time, but no promise.

                  Fredo

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                  • DATAKASHD Offline
                    DATAKASH
                    last edited by

                    @fredo6 said:

                    @DATAKASH

                    There was another request for that and it makes perfect sense.

                    This will come in due time, but no promise.

                    Fredo

                    Yes Yes Yes! @cesaro36 @Hieru They say the same thing as I do! RoundCorner would be an ideal tool, having such such functions. At the moment everything has to be done manually, every day 😞


                    ss+(2017-08-22+at+01.30.48).png

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                    • fredo6F Offline
                      fredo6
                      last edited by

                      Following up on the discussion about using RoundCorner for drawing the control mesh of a subdivision, I am interested to understand what would be the 'best' control mesh for the following shapes (also in the SKP file attached, SU2015).

                      SubDiv Mesh Corner.png

                      As you will notice, the offset lines do not cross on the edges at the same point.

                      Thanks

                      Fredo


                      SubDiv Corner.skp

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                      • tuna1957T Online
                        tuna1957
                        last edited by

                        Fredo, I'm no expert at the SubD stuff but had a go at the model you posted. Kept in mind the intent was for rounding corners. Posting your skip. file back so you can better look at what I did. Hope it's helpful in some way.


                        SubDiv Corner.jpg


                        SubDiv%20Corner copy.skp

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                        • DATAKASHD Offline
                          DATAKASH
                          last edited by

                          Such a grid would be quite appropriate
                          The subdivision does not like n-gon, So some models have to be cut manually

                          Yes, on some models, the bias lines do not intersect at the edges at the same point. I noticed this too. (screenshot 2)


                          1.png


                          I corrected the offset manually


                          SubD Corner SU2015.skp

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                          • fredo6F Offline
                            fredo6
                            last edited by

                            @DATAKASH and @tuna1857

                            Thank you very much for quick answer. This confirms that's not a straight by-product of RoundCorner.

                            I am interested in getting the 'subdivided' version of the shapes. I don't have SubDiv myself and I am not familiar with subdivision, So, it will be helpful by the time I purchase it and get into it.

                            Thanks again

                            Fredo

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                            • tuna1957T Online
                              tuna1957
                              last edited by

                              Fredo, Went back in and cleaned things up better than the first attempt. Posting zip of the model, shows proxies and after SubD.
                              For your information, the first attempt I just used the SU offset tool on all faces and connected things up at the corners with the line tool. This led to some angles in the corners and I think contributed to the not so great results. All the objects did pass the Quadface Tools analyze function.
                              On this second try pay strict attention to keeping all the loops running parallel to respective edges. It took a lot of hand work with the tape tool and line tool. A result of this is the offsets are not all the same distance from edges. All the shapes in the second go passed the Quadface tools analyze function except the wedge on the left, wedge on the right passed. Hope this makes sense and is somewhat helpful.


                              SubDiv Corner2.jpg


                              SubDiv%20Corner.skp.zip

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                              • fredo6F Offline
                                fredo6
                                last edited by

                                Charles,

                                Thank you very much. Very helpful.

                                However, are you sure that SubDivision is appropriate for rounding edges?

                                From what I see, the subdivision gives the following result:

                                SubDiv Q1.png

                                After cleaning the coplanar edges, the subdivision appears to be more or less equivalent to an edge rounding with 2 segments.

                                SubDiv Q2.png

                                But, then, I wonder why you do not prefer a more regular rounding with RoundCorner, here with 2 segments too.

                                SubDiv Q3.png

                                Again, I have no experience with SubDivision. So I am just trying to clarify.

                                Fredo


                                Sub Corner - Tuna 1957 with rounding - Compare.skp

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                                • DATAKASHD Offline
                                  DATAKASH
                                  last edited by

                                  Round Corner has minor problems with rendering. Subdivision is much smoother.
                                  Subdivision can be turned off and mesh corrected.


                                  Roundcorner seen in the render


                                  Offset the grid affects the result


                                  The Subd has a toggle: on-off

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                                  • tuna1957T Online
                                    tuna1957
                                    last edited by

                                    Fredo, Agree with you that SubD to get round corners may not be the preferred approach for everybody. Referring back to DATAKASH's posts, I think the main point of DATAKASH'S request was to be able to use your Roundcorner plugin to help build the mesh in their proxy model prior to running SubD. I honestly don't know the first thing about writing these plug ins and really don't know if this is something that could be implemented into Roundcorner. At this point I think I'm going to quietly disappear and let you and DATAKASH kick this around, I was trying to help out some by posting example meshes for you to study......

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                                    • PixeroP Offline
                                      Pixero
                                      last edited by

                                      A new version of round corner with all quads and an on/off switch (like subD has) would help tremendously.

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                                      • fredo6F Offline
                                        fredo6
                                        last edited by

                                        @datakash said:

                                        Round Corner has minor problems with rendering. Subdivision is much smoother.
                                        Subdivision can be turned off and mesh corrected.

                                        That's interesting! and it would be useful to understand why?

                                        • Is it because the rounding is circular?
                                        • or too regular?
                                        • of for other reasons related to the Rendering parameters

                                        @tuna1957 said:

                                        Fredo, Agree with you that SubD to get round corners may not be the preferred approach for everybody. Referring back to DATAKASH's posts, I think the main point of DATAKASH'S request was to be able to use your Roundcorner plugin to help build the mesh in their proxy model prior to running SubD. I honestly don't know the first thing about writing these plug ins and really don't know if this is something that could be implemented into Roundcorner

                                        What I see from DATAKASH examples (and yours), is that the shape should first be 'quadified' and have consistent 'loops'.
                                        Can QuadFaceTools do this automatically, including when there are holes in faces?

                                        For instance, this shape...

                                        SubDiv Q4.png

                                        ...should first be 'quadified'...

                                        SubDiv Q5.png

                                        ...and then, I guess this makes it easier to construct the offset control mesh.

                                        SubDiv Q6.png

                                        @pixero said:

                                        A new version of round corner with all quads and an on/off switch (like subD has) would help tremendously.

                                        Corners made of quads, as opposed to triangles (for tri-border corners) are possible. However, even in orthogonal cases, each quad may be triangulated. So this increases the number of facets.

                                        SubDiv Q7.png

                                        For a Proxy of RoundCorner, this is independent. Actually, any script doing an object transformation could (or should) have a proxy to enable / disable. Sketchup does not provide a standard method for that, so I guess it has to be simulated, via copy, invisible layers or simply parameterization.

                                        Fredo

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                                        • PixeroP Offline
                                          Pixero
                                          last edited by

                                          @fredo6 said:

                                          Corners made of quads, as opposed to triangles (for tri-border corners) are possible. However, even in orthogonal cases, each quad may be triangulated. So this increases the number of facets.

                                          But it would make it possible to texture better with UV's as for example QuadFaceTools can interpret pairs of those triangles as a quad.

                                          @fredo6 said:

                                          For a Proxy of RoundCorner, this is independent. Actually, any script doing an object transformation could (or should) have a proxy to enable / disable. Sketchup does not provide a standard method for that, so I guess it has to be simulated, via copy, invisible layers or simply parameterization.

                                          Fredo

                                          Maybe you could check with Thomthom how he does it in SubD?
                                          When I have thought about this I was thinking of saving the original geometry information in an attribute, but that is perhaps a bad idea?
                                          Or how does a modify stack work in for example Max?
                                          I'm sure a system for history would benifit a lot of SU plugins.
                                          If it would be possible with a on/off switch it would be a great addition to SU. 👍

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                                          • DATAKASHD Offline
                                            DATAKASH
                                            last edited by

                                            @fredo6 said:

                                            @datakash said:

                                            Round Corner has minor problems with rendering. Subdivision is much smoother.
                                            Subdivision can be turned off and mesh corrected.

                                            That's interesting! and it would be useful to understand why?

                                            • Is it because the rounding is circular?
                                            • or too regular?
                                            • of for other reasons related to the Rendering parameters

                                            I think this is due to the fact that subdivision affects the whole object
                                            And yes, his grid is also triangulated.

                                            As I see, creating offset by selecting each face manually
                                            (If this is a reasonable solution?)


                                            subd.png


                                            select-edge.png

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