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    [Plugin][$] Curviloft 2.0a - 31 Mar 24 (Loft & Skinning)

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    • jgbJ Offline
      jgb
      last edited by

      While I am looking at this topic, I'd like to add a suggestion for Fredo to ponder.

      Fredo; is there any way you could be a bit more specific when CL finds an error in the selected guide curves? Right now, if CL cannot form a skin, it colors the guide curves, but there is no indication of what caused the error, which 95% of the time is a tiny gap somewhere. Otherwise it usually is a tiny extra fragment/double line in the selection.

      Fragments are relatively easy, but time consuming, to find, so a clue as to where it is would help a lot.

      Tiny gaps almost always require a near total redraw of all the line segments, so any indication where the gap actually is would be tremendously useful.


      jgb

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      • M Offline
        mac1
        last edited by

        jgb
        have you tried this http://www.smustard.com/script/StrayLines

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        • jgbJ Offline
          jgb
          last edited by

          @mac1 said:

          jgb
          have you tried this http://www.smustard.com/script/StrayLines

          I think I looked at this some time ago, and found it not quite suitable in several, but common to me, occurrences. It works well with lines, but I had too many "no finds" when 2 or more vertexes of existing faces had a "no-face" micro gap between them. Maybe I used it wrong, dunno; too long ago.

          I will try it again; thanks.


          jgb

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          • M Offline
            mac1
            last edited by

            @jgb said:

            @mac1 said:

            jgb
            have you tried this http://www.smustard.com/script/StrayLines

            I think I looked at this some time ago, and found it not quite suitable in several, but common to me, occurrences. It works well with lines, but I had too many "no finds" when 2 or more vertexes of existing faces had a "no-face" micro gap between them. Maybe I used it wrong, dunno; too long ago.

            I will try it again; thanks.

            Applying multiple times helps some times and of course it does one seg at a time ,so you can make a stray line shorter and shorter 😳
            There are programs with filters that allow you to close close vertices based on a tolerance you input. Meshlab comes to mind but would not recommend you use. Check out ThmoThoms clean up since it may have a similar function. You may need to contact him to find out how to modiy code if it uses a fixed tol

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            • I Offline
              ivreich
              last edited by

              Soft Diagonals Feature?

              Hi Fredo

              Any plans to allow Curviloft to generate meshes with soft diagonals? This will enable Curviloft meshes to be edited with thomthom's new quad face tools (if i'm not mistaken)

              Cheers,

              Joel

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              • thomthomT Offline
                thomthom
                last edited by

                @ivreich said:

                Soft Diagonals Feature?

                Hi Fredo

                Any plans to allow Curviloft to generate meshes with soft diagonals? This will enable Curviloft meshes to be edited with thomthom's new quad face tools (if i'm not mistaken)

                Cheers,

                Joel

                http://forums.sketchucation.com/viewtopic.php?f=323&t=39442&start=0#p348519

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

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                • I Offline
                  ivreich
                  last edited by

                  @thomthom said:

                  @ivreich said:

                  Soft Diagonals Feature?

                  Hi Fredo

                  Any plans to allow Curviloft to generate meshes with soft diagonals? This will enable Curviloft meshes to be edited with thomthom's new quad face tools (if i'm not mistaken)

                  Cheers,

                  Joel

                  http://forums.sketchucation.com/viewtopic.php?f=323&t=39442&start=0#p348519

                  ahhh woops. my bad. didn't see that.

                  j

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                  • jgbJ Offline
                    jgb
                    last edited by

                    Posted in another of my threads, this is slightly edited version.

                    Curviloft; when it fails to form a surface (as part of a solid construction), even though it shows a black pre-form surface, still generates an empty, or perhaps an almost empty group that SU interprets to be as a non solid. Solid Inspector will correctly say it finds no errors, but SU will not see it as a solid. And if you try to re-do that failed surface, you get another empty group.

                    The only way out, is if you know you do have a valid solid after a Curviloft fail, but SU says not, then edit the solid and do a sweeping left select to select everything. Using TT's selection tools, select only groups, and there it is. Just hit the <delete> key to get rid of it. You cannot select just that empty group. If you have other valid groups in that selection, then deselect them first.

                    Fredo.... Could you please do something about NOT creating an empty group when CL fails to form a surface?


                    jgb

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                    • fredo6F Offline
                      fredo6
                      last edited by

                      @jgb said:

                      Fredo.... Could you please do something about NOT creating an empty group when CL fails to form a surface?

                      Thanks for signaling this problem. I will indeed fix it.
                      Do you have an example of a model where it fails?

                      @ivreich said:

                      Any plans to allow Curviloft to generate meshes with soft diagonals? This will enable Curviloft meshes to be edited with thomthom's new quad face tools (if i'm not mistaken)

                      I have plans!
                      Note that it will slightly slow down the generation of the faces however.

                      Fredo

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                      • jgbJ Offline
                        jgb
                        last edited by

                        I will try to duplicate the problem, because I modified the object in that area since that happened, but if I can't I will post next time it happens.

                        But when you say you will fix the problem... which one; the fail to form a surface when a black face does pre-form, or the empty group when that happens???

                        EDIT ---------------

                        Fortunately the problem box model still had the empty group problem when I reversed my changes.

                        You are looking at the open face from beneath and inside the box structure. That box was a clean solid but I had to change the angle slightly on the 2 end faces (4 faces total). 3 of the faces remained intact, 1 face vanished. I selected its' 4 edges but the SU "Face" command would not form the face.

                        Then I re-selected the 4 edges and used CL "Skin". The black preform appeared with only a single face. But when I clicked finish, it disappeared and nothing showed. I tried a few times, but same result. So I just drew a diagonal and the surface formed with 2 triangles. When I exited the object, SU said it was not a solid. SI said it was a solid. I had this problem before with an embedded group, not knowing why it happened, but I knew now how to fix them.

                        So I went back into edit mode, and did a left sweep select, then a TT Select "groups". and there they were, several empty groups outlining my 4 edges. When I hit <del> and exited, SU said I had a solid.

                        I did a CL skin on the posted model but left the empty group intact for you to analyze.


                        Empty Group on 1 inside face.


                        jgb

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                        • fredo6F Offline
                          fredo6
                          last edited by

                          I see the empty group. It is true that it is not easy to detect.

                          At least I can try to prevent empty groups to be created (except if the face disappears afterwards).

                          Playing with the 4 edges, I could reconstruct the face, whether the empty group was present or not, with pre-selection or manual selection. The mystery remains why the face was not generated or vanished.

                          Fredo

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                          • jgbJ Offline
                            jgb
                            last edited by

                            @unknownuser said:

                            I see the empty group. It is true that it is not easy to detect.

                            At least I can try to prevent empty groups to be created (except if the face disappears afterwards).

                            Playing with the 4 edges, I could reconstruct the face, whether the empty group was present or not, with pre-selection or manual selection. The mystery remains why the face was not generated or vanished.

                            Fredo

                            The "Black Face Forms - No White Face formed" has happened many times before. It seems more prevalent when I try to form a flat face that would not face via the SU face command. But other curves have generated a "Black Face - no White Face" as well, not just flats. But in many of those cases if I do the curve in 2 or more sections, it works.


                            jgb

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                            • fredo6F Offline
                              fredo6
                              last edited by

                              NEW RELEASE: Curviloft 1.2a - 21 Sep 11

                              IMPORTANT: you need to install LibFredo6 4.2 (or higher). With this version of LibFredo6, the ZLoader__Curviloft.rb is no longer necessary.

                              This release includes the generation of pseudo-quads for usage by the new QuadFaceTools by Thomthom.

                              The surface is generated out of quads with a diagonal which is Soft and Smooth.

                              Because there always 2 ways to triangulate a quad, Curviloft offers both options.

                              Curviloft Pseudo quads.gif

                              This release also prevents to get an empty group when something goes wrong in the generation of the geometry. This problem was signaled by jgb (see this post).

                              See main post for download

                              Fredo

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                              • thomthomT Offline
                                thomthom
                                last edited by

                                πŸ‘ πŸ‘
                                Very nice Fredo.
                                I'll be looking into the revised definition of a Quad this week. I like your suggestion.

                                (Btw, I see that the preview still display black meshes - you know that SU8 now makes use of view.drawingcolor, yes?)

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

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                                • fredo6F Offline
                                  fredo6
                                  last edited by

                                  @thomthom said:

                                  :thumb: πŸ‘
                                  Very nice Fredo.
                                  I'll be looking into the revised definition of a Quad this week. I like your suggestion.

                                  I will release an update with

                                  • Border: Soft + Smooth
                                  • Diagonals: Soft + Smooth + Hidden

                                  @thomthom said:

                                  (Btw, I see that the preview still display black meshes - you know that SU8 now makes use of view.drawingcolor, yes?)

                                  I know, but for Curviloft, I'll keep Black anyway (due to the visual matching with the various colors of the lines).

                                  Fredo

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                                  • fredo6F Offline
                                    fredo6
                                    last edited by

                                    NEW RELEASE: Curviloft 1.2b - 26 Sep 11

                                    IMPORTANT: you need to install LibFredo6 4.2 (or higher). With this version of LibFredo6, the ZLoader__Curviloft.rb is no longer necessary.

                                    This release includes more options for the generation of pseudo-quads for usage by the new QuadFaceTools by Thomthom.

                                    Options are available in the Default Parameters dialog box
                                    Curviloft Quads Param.png

                                    By default, pseudo-quads are generated with:

                                    • Borders: Soft + Smooth
                                    • Diagonals: Soft + Smooth + Hidden

                                    This allows to have a nice-looking surface, while being compliant with all functionality of Thomthom quads tool (which should be upgraded soon)

                                    See main post for download

                                    Fredo

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                                    • thomthomT Offline
                                      thomthom
                                      last edited by

                                      πŸ‘

                                      FYI to users of QuadFace 0.3 and earlier, you must set the border edges to not be soft.

                                      So for QuadFace 0.3 and earlier:
                                      Diagonal: Soft + Smooth (Hidden may be set - not required)
                                      Border: Not Soft (Smooth and Hidden can be set, but not a requirement)

                                      QuadFace 0.4
                                      Diagonal: Soft + Smooth + Hidden (All required)
                                      Border: Not diagonal. (Any combo can be used as long as not all the checkboxes are ticked.)

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

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                                      • Dave RD Offline
                                        Dave R
                                        last edited by

                                        Thank you Fredo.

                                        @thomthom said:

                                        QuadFace 0.4

                                        Thomas, I see links to 0.3 but not 0.4. I must be looking in the wrong place?

                                        Etaoin Shrdlu

                                        %

                                        (THERE'S NO PLACE LIKE)

                                        G28 X0.0 Y0.0 Z0.0

                                        M30

                                        %

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                                        • CarrozzaC Offline
                                          Carrozza
                                          last edited by

                                          Thanks for this great plugin! ^__^

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                                          • thomthomT Offline
                                            thomthom
                                            last edited by

                                            @dave r said:

                                            Thank you Fredo.

                                            @thomthom said:

                                            QuadFace 0.4

                                            Thomas, I see links to 0.3 but not 0.4. I must be looking in the wrong place?

                                            Yes, you must look on the harddisk of my private computer for version 0.4. πŸ˜‰
                                            ( There's a teaser video in the first post: http://forums.sketchucation.com/viewtopic.php?f=323&t=39442 - Toob: http://www.youtube.com/watch?v=NY-l93C-fPw )

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

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