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Mini-challenge

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  • J Offline
    jason_maranto
    last edited by 30 Apr 2012, 20:39

    Under Window> Model Info> Units you can set the precision of SketchUp (to its limits) -- generally I never get this precise because it's not practical for what I do, but it is there if you want it.

    Best,
    Jason.

    I create video tutorial series about several 2D & 3D graphics programs.

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    • J Offline
      jeff hammond
      last edited by 30 Apr 2012, 20:56

      @pbacot said:

      all these methods are the same. You are either rotating a guide point or the board, to an insecure target along a line. SU should rotate using the projected arc intersection and that would be no issue for SU? I assume the rotate arc IS on a true curve. It is just that missing "projected arc intersection" function. In my CAD program (which does have arcs of course) a downfall is inability of lines and arcs to find (snap) that projected intersection point without using a trim tool. SU does line completion correctly why not rotation.

      It should be part of the SU inference tools (and toggling OFF the inference tools should also be a part! 😑 )

      right. I think the devs could make sketchup inferencing work the way we're expecting it to without changing the essence of sketchup.. a 'smart rotate' tool might be able to be created via ruby but for all I know, a ruby coder may end up facing the same brick wall?

      dotdotdot

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      • P Offline
        pbacot
        last edited by 30 Apr 2012, 21:06

        all these methods are the same. You are either rotating a guide point or the board, to an unsecured target along a line. SU should rotate using the projected arc intersection and that would be no issue for SU? I assume the rotate arc IS on a true curve. It is just that missing "projected arc intersection" function. In my CAD program (which does have arcs of course) a downfall is inability of lines and arcs to find (snap) that projected intersection point without using a trim tool. SU does line completion correctly why not rotation.

        It should be part of the SU inference tools (and toggling OFF the inference tools should also be a part! 😑 )

        MacOSX MojaveSketchUp Pro v19 Twilight v2 Thea v3 PowerCADD

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        • T Offline
          TIG Moderator
          last edited by 30 Apr 2012, 21:09

          Pilou

          If the 'cut' end of the rail has the same 'height' when it is flat as it does when it is angled, then the sloping rail has been distorted and it is no longer the same 'width' [i.e. the square/vertical dimension] as it was before it was rotated...

          TIG

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          • P Offline
            pilou
            last edited by 30 Apr 2012, 21:10

            @unknownuser said:

            When testing I recommend you put the posts further apart as with near square shape deviances might be so small that you think you have a correct solution.

            I don't understand why you don't receive my test? 😲
            All seems perfect! πŸ˜„
            Where is the glitch ? (I am in decimal with maximum precision alowed by SU )

            test_jeff.jpg


            test_jeff.skp

            Frenchy Pilou
            Is beautiful that please without concept!
            My Little site :)

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            • G Offline
              Gaieus
              last edited by 30 Apr 2012, 21:12

              @unknownuser said:

              i'm not quite sure they could give us true arcs in sketchup without entirely changing the way sketchup works.. (how would a cylinder be drawn if there were no segments in the arcs? a nurbs surface? )

              I do nor care for any "real" geometry. Let it me an approximated, segemented surface model.

              What should be here is circular guides. To let us do geometry we learnt in secondary/high school at our teen ages... That's not much but fairly enough.

              Gai...

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              • T Offline
                TIG Moderator
                last edited by 30 Apr 2012, 21:14

                @gaieus said:

                @unknownuser said:

                i'm not quite sure they could give us true arcs in sketchup without entirely changing the way sketchup works.. (how would a cylinder be drawn if there were no segments in the arcs? a nurbs surface? )

                I do nor care for any "real" geometry. Let it me an approximated, segemented surface model.
                What should be here is circular guides. To let us do geometry we learnt in secondary/high school at our teen ages... That's not much but fairly enough.
                My Tangent Tools fill the gap [for now] and allow you to find the real intersection points of tangents to arcs, lines and arcs, arcs and arcs etc etc...
                They are not new πŸ˜•

                TIG

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                • J Offline
                  jeff hammond
                  last edited by 30 Apr 2012, 21:15

                  @unknownuser said:

                  @unknownuser said:

                  When testing I recommend you put the posts further apart as with near square shape deviances might be so small that you think you have a correct solution.

                  I don't understand why you don't receive my test? 😲
                  All seems perfect! πŸ˜„
                  Where is the glitch ? (I am in decimal with maximum precision alowed by SU )

                  [attachment=0:1h4o0r1i]<!-- ia0 -->test_jeff.jpg<!-- ia0 -->[/attachment:1h4o0r1i]

                  I think presenting the problem in 3D could of been confusing. the direction youre measuring 5 in this latest image is insignificant.. try drawing the 2D version (posted on pg 2 or so)

                  dotdotdot

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                  • P Offline
                    pilou
                    last edited by 30 Apr 2012, 21:17

                    Aaaaaaaaaaaaahhhhh πŸ˜„
                    Call me Fredo! πŸ˜† πŸ˜† πŸ˜† I was suffering from hallucinations! 😳

                    Frenchy Pilou
                    Is beautiful that please without concept!
                    My Little site :)

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                    • P Offline
                      pilou
                      last edited by 30 Apr 2012, 21:18

                      I just avoid to test the height result! πŸ˜’ πŸ˜’ πŸ˜’ A sort of rotating geometric mirage! πŸ˜„
                      2.670000 against 2.470811m 😳

                      Frenchy Pilou
                      Is beautiful that please without concept!
                      My Little site :)

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                      • G Offline
                        gilles
                        last edited by 30 Apr 2012, 21:25

                        I'm back!


                        Mini-challenge2v6.skp


                        Mini-challenge2v6.png

                        " c'est curieux chez les marins ce besoin de faire des phrases "

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                        • J Offline
                          jeff hammond
                          last edited by 30 Apr 2012, 21:27

                          @tig said:

                          @gaieus said:

                          @unknownuser said:

                          i'm not quite sure they could give us true arcs in sketchup without entirely changing the way sketchup works.. (how would a cylinder be drawn if there were no segments in the arcs? a nurbs surface? )

                          I do nor care for any "real" geometry. Let it me an approximated, segemented surface model.
                          What should be here is circular guides. To let us do geometry we learnt in secondary/high school at our teen ages... That's not much but fairly enough.
                          My Tangent Tools fill the gap [for now] and allow you to find the real intersection points of tangents to arcs, lines and arcs, arcs and arcs etc etc...
                          They are not new πŸ˜•

                          yeah, true tangents seems to be the only viable ruby solution at this time.

                          is it possible to make it more interactive? to where it basically acts like the standard rotate tool but it will snap to an arbitrary point along a line segment? or is something like that impossible to code with the current API?

                          dotdotdot

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                          • J Offline
                            jeff hammond
                            last edited by 30 Apr 2012, 21:28

                            @gilles said:

                            I'm back!

                            and I'm back on my phone now πŸ˜„
                            can't wait to see what you've come up with this time.

                            (in 2 more hours or so)

                            dotdotdot

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                            • A Offline
                              andybot
                              last edited by 30 Apr 2012, 22:15

                              @gilles said:

                              I'm back!

                              I realized this is not strictly geometrically correct. The line that you are putting the guide perpendicular to will not be at the same angle once it is adjusted to the correct width. There is a slight shift that occurs once you adjust both ends.

                              http://charlottesvillearchitecturalrendering.com/

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                              • P Offline
                                pilou
                                last edited by 30 Apr 2012, 22:25

                                Thx for the V6 ! The figure remember something N πŸ˜‰

                                I will try another idea come back...in...a week...or months... πŸ˜’ πŸ˜„

                                Frenchy Pilou
                                Is beautiful that please without concept!
                                My Little site :)

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                                • M Offline
                                  mac1
                                  last edited by 30 Apr 2012, 23:37

                                  @tig said:

                                  Mac1

                                  How do you get the rotated guide pt to snap exactly onto the horizontal top guideline ?

                                  The guide point and the guide lines are rotated ( their 3.5 spacing is used to get the intersect point on the post A bottom. The post B top is used for the snap ref. Have to do that since you cannot inference to guide lines. The error can occur on the other end when trying to get the guide point on the line. If you what more accuracy one could use the technique Jeane uses for interpolation to come close to the intersect point when rotating one line into another.

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                                  • P Offline
                                    pilou
                                    last edited by 1 May 2012, 02:45

                                    Another method πŸ˜„
                                    I believe that the next time that will be 1.000001 m, maybe 1 m πŸ˜‰

                                    Jeff1.jpg


                                    Test_jeff1.skp

                                    Frenchy Pilou
                                    Is beautiful that please without concept!
                                    My Little site :)

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                                    • T Offline
                                      TIG Moderator
                                      last edited by 1 May 2012, 10:08

                                      I think this plugin-free method works... but it's pretty convoluted...


                                      RakingRail.skp

                                      TIG

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                                      • R Offline
                                        Rich O Brien Moderator
                                        last edited by 1 May 2012, 10:18

                                        πŸ‘

                                        Download the free D'oh Book for SketchUp πŸ“–

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                                        • J Offline
                                          jason_maranto
                                          last edited by 1 May 2012, 11:33

                                          Yeah, that's essentially the same thing I did, but the reason I didn't make a circle is the circle geometry is too imprecise to work accurately in every scenario.

                                          I'll check out TIGs latest when I get to the studio.

                                          Best,
                                          Jason.

                                          I create video tutorial series about several 2D & 3D graphics programs.

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