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    [Plugin] Perpendicular Face Tools (UPDATED 26-03-09)

    Scheduled Pinned Locked Moved Plugins
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    • Chris FullmerC Offline
      Chris Fullmer
      last edited by

      @malaise said:

      Hi Chris

      Small feedback : using customer shape crashes SU ( under Windows XP 3)without any message.

      MALAISE

      Oh dear, thats not good. Can anyone else confirm? I don't have xp sp3 anywhere to test it on. Is it possible that it is a conflict with another script? That doesn't seem likely to me since I think I've written my code so that can not happen.

      I do have xp sp2 I can test it on. Perhaps if I can duplicate it there, I can narrow down the problem. Thanks for the notice,

      Chris

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

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      • Dave RD Offline
        Dave R
        last edited by

        Chris, I've done a couple of experiments with it. No crashes yet. I've got XP Pro SP3.

        Dave

        Etaoin Shrdlu

        %

        (THERE'S NO PLACE LIKE)

        G28 X0.0 Y0.0 Z0.0

        M30

        %

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        • E Offline
          Ecuadorian
          last edited by

          An artist who is also a coder?
          That's Chris Fullmer!

          Thank you very much for taking the time to code this; with a couple of tweaks, this will be perfect. 😎

          -Miguel Lescano
          Subscribe to my house plans YouTube channel! (30K+ subs)

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          • MALAISEM Offline
            MALAISE
            last edited by

            OK, let me see which plugin may be in conflict 👍

            MALAISE

            La Connaissance n'a de valeur que partagée

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            • MALAISEM Offline
              MALAISE
              last edited by

              Hi ALL

              Filtering the last downloaded plugins, I've found a conflict with Jim's cd_power_n.rb ( mover2.rb) Has someone experienced that? several times tested.

              ( SU V7, Windows XP SP3 )

              MALAISE ❓

              La Connaissance n'a de valeur que partagée

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              • Chris FullmerC Offline
                Chris Fullmer
                last edited by

                Very Interesting. I have that plugin installed with no conflicts. I'll dig around tomorrow and see what I can find. Sorry for the inconvenience,

                Chris

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

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                • MALAISEM Offline
                  MALAISE
                  last edited by

                  Thanks for playing attention, no matter for inconvenience, don't worry 😄
                  MALAISE

                  La Connaissance n'a de valeur que partagée

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                  • J Offline
                    Jim
                    last edited by

                    @malaise said:

                    Hi ALL

                    Filtering the last downloaded plugins, I've found a conflict with Jim's cd_power_n.rb ( mover2.rb) Has someone experienced that? several times tested.

                    ( SU V7, Windows XP SP3 )

                    MALAISE ❓

                    Mover2 does not use a file or method named cd_power_n.rb.

                    Hi

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                    • Chris FullmerC Offline
                      Chris Fullmer
                      last edited by

                      I know, its cad_fathers's SCF powertools toolbar plugin that wrapped mover2 into a file called cd_power_n.rb. If you open that file, its just your script. So I'm guessing it has something to do with how its being loaded from his main plugin loader maybe? I don't know. I know I've got my whole script wrapped in a class so I thought I should not have conflicts. But perhaps there is more to it than that.

                      Chris

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

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                      • TIGT Offline
                        TIG Moderator
                        last edited by

                        I'm not getting bug-splats with custom-face, BUT it does inconveniently make a group of the selected face and not explode it at the end. It's easily fixed by adding a line of code after line #299, to explode the temporary group...

                        @group.explode
                        

                        How's the orienting face rotation on end of line going ?
                        .

                        TIG

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                        • MALAISEM Offline
                          MALAISE
                          last edited by

                          I've tried this improvement, the group is still present, not exploded. ❓

                          MALAISE

                          La Connaissance n'a de valeur que partagée

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                          • Chris FullmerC Offline
                            Chris Fullmer
                            last edited by

                            Hey Tig, I probably could explode the group without any conflicts. I was thinking I didn't want the added face to interefere with the model, but its probably not an issue. Or maybe I explode it by default and have a ctrl key modifier that leaves it grouped. I've been wanting to figure out modifier keys.

                            As for the rotation thing, I still have not got it worked out 😞 I'm having a hard time pinpointing point C from my diagram above. I got close and it sort of worked, but it fell apart if the face was too slanted or something and I got so frustrated I have not even looked to figure out why. I'm sure its a million times easier than I'm making it. Since I can't find "C" yet, I intersected a flat plane with the face plane to get an intersection vector. That vector is the vector that I want my top(or bottom) edge to exist on. So I then did an angle_between the 2 vectors (the found one and the existing edge one) to get the angle that I want to rotate the face. That seemed to work in testing, but did not work well once I put it in the script. Sorry to drag this out. I'll probably put some more time into it today since I got a few other scripts updated last night.

                            @Malaise, I think maybe that added the ungroup function to the custom face tool only, and maybe you tested it on one of the other tools. It would need to be added for each tool. I'll look into it, and maybe even get it implemented sometime this century 😄

                            Thanks everyone, thanks TIG!

                            Chris

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

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                            • TIGT Offline
                              TIG Moderator
                              last edited by

                              It's the original face that needs to be un-grouped. I agree that the face put on the end of the line is best left grouped to allow you to move its origin or rotate it about the line etc - you can explode it before doing a followme etc...

                              Here's my thinking on the rotation conundrum...

                              Let's do the square for now - seems to me that first you make a group containing a 'flat' square with its centre set at the origin and then move it to the select vertex at the end of the edge, transform rotating it so its face is perpendicular to the picked-vertex's edge... So far so good. Now we check the geometry of the square - it only has four vertices, so find the two with the lowest Z-value***. These are the vertices of the bottom-most edge. Now find the mid-point between them - we use this to work out the vector from the 'centre' (picked-vertex's location) to this mid-point and the angle between that and a 'vertical' vector in the same plane as the face: that 'angle' is the angle that we'll use later on to rotate everything so that it is 'orthogonal' to the XYZ axes.

                              Let's call the centre 'c' and two lowest points 'p1' and 'p2' - these are known - and the mid-point we'll call 'm' - that we need to get...
                              To find a point mid-way between two others use...

                               m = Geom;;Point3d.linear_combination(0.5,p1,0.5,p2) 
                              

                              We can then get the vector from 'c' to 'm', let's call it 'cm' - simply subtract the point values...

                               cm = c - m 
                              

                              Now to find the 'vertical vector' (let's call it 'vv') - first find a point ('t') 1 unit away from 'c' above the surface of the face by the edge's [positive] 'vector' and then project it down till it hits the face at 'v' - the line between 'c' and 'v' is the 'vertical vector' against which we'll rotate the face...

                               t = c.offset(vector,1)
                               ang = (t-c).angle_between(t-[0,0,-1]) # i.e. the tilt on face normal
                               hyp = 1/Math;;cos(ang) # i.e. the drop from t to face plane
                               h = [t.x,t.y,(t.z)-hyp] # i.e. the point t projected onto the face's plane
                               vv = c-h # the vertical vector
                              
                              

                              Now get it's angle to the 'mid-point vector'

                               angle = vv.angle_between(cm) 
                              

                              You then need to work on the face of the square and transform/rotate the whole thing around the picked-vertex's edge by the 'angle'... Done.

                              ***Note: IF the Z of all of the square's vertices is the same [simple test to look at the four] then it's 'flat' so then we'll find the lowest two Ys and rotate it to be orthogonal about the Z axis instead. Also note that in this 'flat' case the 'vertical' vector needs to be (0,-1,0) to match the Y...

                              For the custom face do something similar but group the face, copy it, explode the original back to where it was and then use the copy's bounding box centre as its 'origin', move and transform it to the vertex, use the new location's bounds to get an enclosing rectangle to get minimum Zs etc, all as above etc etc...

                              I haven't tried this code, but it should at least form the basis of something that''ll work...

                              .

                              TIG

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                              • Chris FullmerC Offline
                                Chris Fullmer
                                last edited by

                                Thanks for walking me through this TIG. Hopefully I'll get a chance to try to get this implemented tonight or tomorrow. Lots of work-work and school-work today 😞

                                Chris

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

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                                • C Offline
                                  cosycat
                                  last edited by

                                  looking at this, I wondered how difficult it would be to create a script that 'blended' between two diffrent faces at either end of a line.

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                                  • Chris FullmerC Offline
                                    Chris Fullmer
                                    last edited by

                                    Unfortunately, it would be very difficult - for me! I have thought similar thoughts, and that is a plugin that is on my wishlist. I am working on anther ruby that begins to get into that arena of morphing from one shape to another, but it is really new territory for me. Maybe in time 😄

                                    Chris

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

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                                    • X Offline
                                      xrok1
                                      last edited by

                                      @cosycat said:

                                      looking at this, I wondered how difficult it would be to create a script that 'blended' between two diffrent faces at either end of a line.

                                      Like this?


                                      cap.jpg

                                      “There are three classes of people: those who see. Those who see when they are shown. Those who do not see.”

                                      http://www.Twilightrender.com try it!

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                                      • thomthomT Offline
                                        thomthom
                                        last edited by

                                        Not like that. That simply scales the shape. They are talking about morphing for instance a circle shape to a star shape.

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

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                                        • X Offline
                                          xrok1
                                          last edited by

                                          that would be a loft wouldn't it?

                                          “There are three classes of people: those who see. Those who see when they are shown. Those who do not see.”

                                          http://www.Twilightrender.com try it!

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                                          • pilouP Offline
                                            pilou
                                            last edited by

                                            In Nurbs language it's more kown as a sweep 😄sweep.jpg

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

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