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Custom Dynamic Component Functions = Ruby links

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  • T Offline
    TIG Moderator
    last edited by 8 May 2011, 11:14

    To make the DC stringer as a 'solid 3D object' you'd still do the 'inputs' as before, BUT then output them to a new custom function - called say '=jcstringer(height,riser,board)' in the DC that runs when you update one of the values. You would not necessarily need the built-in DC functions used to calculate number of notches etc as these are now done inside Ruby-side code...
    The associated custom Ruby code would be 'def jcstringer(a)', which always takes its input as one array 'a', so height=a[0].to_l, riser=a[1].to_l, board=a[2].to_l etc...
    You could also pass a variable stringer-width, tread-width, and any other data etc etc...

    We can readily find the DC instance's definition and thereby its entities.
    First you'd erase that definition's entities: then take the passed values, use iterations etc and make a set of coplanar points for each vertex of the 'cut' stringer and add a face to the DC defn's entities using those. Then pushpull that face to the right width [here 2"] and finally do a Ruby-side DC redraw etc [if needed].
    This way you'll get a full 3D solid object as the stringer without any subcomponents in it.
    Whenever that stringer's value is changed the Ruby side discards the old geometry and makes new geometry...

    Initially it might be easier to start with something like a simple L-shape 'box' with 3 or 4 changeable dims. Then try remaking that with a custom function in Ruby code called from the DC. Once that's cracked you can move on to the more complex iterations etc in the Ruby to make 'step-notches' etc...

    TIG

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    • D Offline
      Dan Rathbun
      last edited by 8 May 2011, 11:19

      @unknownuser said:

      (http://forums.sketchucation.com/viewtopic.php?f)":242wng0h]
      @jim said:

      Drop this in your plugins folder...

      class DCFunctionsV1
      > >   protected
      > >   def atan2(*a)
      > >     return Math;;atan2(a[0], a[1])
      > >   end
      > > end
      > > 
      

      Lemme do a quick fix on that...

      class DCFunctionsV1
      >   protected
      >   def atan2(a)
      >     return Math;;atan2(a[0], a[1]).radians
      >   end
      > end
      > 
      

      You are correct for the argument, in that the DC extension always passes the function arguments as an Array (so the ***** expansion operator is not needed.)

      However, all the other trig functions do not have built-in radians to degrees conversion, and to follow convention, the internal code for the function should be as Jim showed.

      If you wish degrees from a result that returns radians, you should use the DC function degrees( *radian_arg* ), as in:

      degrees( atan2(n1,n2) )

      require('dynamiccomponents.rb')
      if defined?($dc_observers)
        # only if DC extension is active
        class DCFunctionsV1
          protected
          def atan2(a)
            return Math;;atan2(a[0], a[1])
          end #def
        end #class
      end #if
      
      

      NOTE: modifying this class no longer makes it version 1

      I'm not here much anymore.

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      • T Offline
        TIG Moderator
        last edited by 8 May 2011, 16:14

        Jeff

        This is the cut-stringer as a Ruby formula

        def jh_stringer(ar) ### ar==array of data...
          ###
          ents=Sketchup.active_model.entities ### for testing
          ### for a DC class DCFunctionsV1 class def you change to
          ### ents=@source_entity.definition.entities
          ###
          h=ar[0].to_l ### total height floor to floor e.g. 48"
          r=ar[1].to_l ### max riser e.g. 7.25"
          b=ar[2].to_l ### stringer board size e.g. 10" [from 2x10]
          ###
          g=9.25  ### going [i.e. tread size] 9.25"
          t=2.00  ### stringer thickness 2"
          tt=1.00 ### tread thickness say 1" ? ***
          hh=h-tt
          n=((hh/r)+0.5).round
          r=h/n
          a=Math.atan(r/g)
          b1=r/Math.acos(a)
          b2=b-b1
          gg=g*n
          bt=(b*Math.cos(a))-r
          g1=gg-((hh-bt)/Math.tan(a))
          pts=[[0,0,0]] ### start at the bottom of the first riser
          n.times{|i|                     ### no lower tread to 1st riser
            pts << [g*i,0,r+(r*i)-tt]     ### front edge of each tread
            pts << [g+(g*i),0,r+(r*i)-tt] ### back edge of each tread
          }
          pts << [gg,0,(hh-bt)]   ### the top u/side of stringer
          pts << [g1,0,0]         ### the bottpm u/side of stringer
          ###
          f=ents.add_face(pts)
          f.pushpull(t)
        end
        

        As a test def it makes the stringer in model entities.
        See the note on how to add it to the DC definition etc...
        Use as a custom function =jh_stringer(height, rise, stringer_boardwidth)

        TIG

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        • jeff hammondJ Offline
          jeff hammond
          last edited by 9 May 2011, 05:20

          tig, thanks

          i gotta admit though, i really don't feel like going down that rabbit hole.. i can see the possible addiction and i don't think i can afford another addiction at this point in my life πŸ˜„

          i tried out a new approach and i think it's going to work out good for me.. i can make these types of DCs a lot faster/easier because there are less factors to account for as these cutters only need to be exact on their cutting edges.. lengths/thicknesses/positions etc. can just run wild in many cases.
          for final components with multiple parts, i'll be able to reuse certain cutters instead of needed to reenter the parameters etc..

          here's the stringer example...

          (not fine tuned enough to deal with out_of_norm dimensions --ie. 12" rise etc.)

          i think this opens up a lot of possibilities with DCs (at least with the way my brain works πŸ˜„ )
          i'll try some things out this week with more complex shapes (ie- the things that i'd actually want to use DCs for) and post the results if they end up being decent..

          [edit] - i guess i should point out that this method requires sketchup PRO.. but that's obvious, right? : )


          click pic -> bigger

          dotdotdot

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          • jeff hammondJ Offline
            jeff hammond
            last edited by 9 May 2011, 06:06

            so, i've yet to see a good example of a DC stair stringer so i tried making one of my own (all of the other ones appear to ignore the fact that stairs are typically built out of standard sized materials) [but, if anyone knows of some good ones, feel free to share : ) ] ..very early into it, i ran into the problem (rather, limitation?) of dynamic components..

            you can't change angles of faces/edges/etc on a component.. to do that, you have to break the component down into smaller sub-components and by doing so, you lose the ability to have a single/solid component..

            if you ruby geniuses could figure out a way to either A) add faces to nested edges or b) find a way to control individual faces/edges within a component via DC then these things could be awesome.. otherwise, DCs appear to be limited to cubes for any practical construction application (and that's a huge limit imo because the cube type stuff is super easy to draw anyway)..

            here's the file for my Stringer dc:

            (re-upped.. fixed small error)

            if that stringer could somehow become one solid component then i'd be --> 😍

            otherwise, it's still a decent (and definite timesaver) calculator for the stringer but it's not so good for making .skp drawings of them.. regardless, i'm going to expand on the DC to include the support wall and stringer cap which will still let me make super quick cutlists on the job site..

            dotdotdot

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            • T Offline
              TIG Moderator
              last edited by 9 May 2011, 08:32

              That's fine if you're happiest with this approach...

              TIG

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              • Q Offline
                quiver
                last edited by 5 Apr 2012, 13:32

                @unknownuser said:

                if you ruby geniuses could figure out a way to either A) add faces to nested edges or b) find a way to control individual faces/edges within a component via DC then these things could be awesome.. otherwise, DCs appear to be limited to cubes for any practical construction application (and that's a huge limit imo because the cube type stuff is super easy to draw anyway)..

                I wholeheartedly echo that request.. this would overcome a variety of issues for my work. I design for events, and have made all my own lighting fixtures / speakers / projectors etc, which are all DC's that I can adjust the attributes of (some of my library is published here: http://sketchup.google.com/3dwarehouse/cldetails?mid=e94a8eafed72d755701d728505a21ed0&prevstart=12). But I come across that stumbling block frequently, with wanting to do something as simple as move one face of a cube (not in alignment with the cube, but side-to-side.. like a parrallelogram)..

                Custom functions are a helpful half-way point but if everyone needs the same ruby script installed to be able to utilise it, they don't serve all that well. Is there any way to address individual edges/faces of a component using ruby in a DC spreadsheet formula? If I can do that, and modify them using existing functions, then I'd be more than satisfied.

                Thanks !

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                • J Offline
                  Jim
                  last edited by 7 Apr 2012, 16:30

                  @unknownuser said:

                  --use component options to determine dimensions
                  --in outliner, click on 'CUTTERS'
                  --select 'Outer Shell' via solid tools
                  --select 'Subtract' via solid tools
                  --click on the orange board (stringer_uncut)
                  --explode
                  --the stringer will be a single solid component named 'Stringer'

                  Once the DC is configured, these steps could be automated into a single step (via a menu or tool button.) I am making the assumption of consistent Component names being used i.e Components named "Cutters" are always subtacted from Components named "Stringer_Uncut"

                  Hi

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                  • jeff hammondJ Offline
                    jeff hammond
                    last edited by 8 Apr 2012, 00:42

                    @jim said:

                    Once the DC is configured, these steps could be automated into a single step (via a menu or tool button.) I am making the assumption of consistent Component names being used i.e Components named "Cutters" are always subtacted from Components named "Stringer_Uncut"

                    hey Jim.

                    since the time of this thread, I have automated the finishing parts of the DC using AppleScript. I found a pretty decent way to create macros for sketchup.. the macros are osx 'services' which (can) reside in a specific app's menus (or they can be available system wide)

                    which reminds me. maybe I should type up a thread showing how to accomplish this.

                    dotdotdot

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                    • D Offline
                      Dan Rathbun
                      last edited by 8 Apr 2012, 01:53

                      Jeff.. please DO.

                      Then if we can find a PC complement (likely OLE,) these "services" could be wrapped as Ruby objects or classes. A platform conditional if block would define the Ruby interface, using AppleScript on the Mac, and OLE on PC. In this way we could have a cross-platform Ruby interface for plugins.

                      I'm not here much anymore.

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                      • jeff hammondJ Offline
                        jeff hammond
                        last edited by 8 Apr 2012, 02:33

                        @dan rathbun said:

                        Jeff.. please DO.

                        Then if we can find a PC complement (likely OLE,) these "services" could be wrapped as Ruby objects or classes. A platform conditional if block would define the Ruby interface, using AppleScript on the Mac, and OLE on PC. In this way we could have a cross-platform Ruby interface for plugins.

                        hmm. I'm not too sure it would work with what you're suggesting. (at least the way I've been going about it)

                        I'm doing GUI scripting so it's basically just keystrokes and menu items.. you can accomplish quite a bit this way (I actually have one script that uses a little but of ruby in there via the console πŸ˜„ )

                        the thing that's good about it is it's not very complicated so a lot of people should be able to make their own macros this way (and a bonus is that you don't have to install any additional software)..

                        dotdotdot

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                        • J Offline
                          Jim
                          last edited by 8 Apr 2012, 02:55

                          @unknownuser said:

                          I'm doing GUI scripting so it's basically just keystrokes and menu items..

                          The Windows equivalent can be accomplished via Windows Scripting.

                          Here's a VBScript example:

                          Sub Wait
                          	Wscript.Sleep(1500)
                          End Sub
                          
                          set WshShell = WScript.CreateObject("WScript.Shell")
                          'WshShell.AppActivate "- SketchUp"
                          Command = """C;\Program Files (x86)\Google\Google SketchUp 8\SketchUp.exe"""
                          'MsgBox Command
                          WshShell.Run(Command)
                          Wait
                          WshShell.SendKeys "%u" ' My SU Shortcut to open Ruby Console
                          Wait
                          WshShell.AppActivate "Ruby Console"
                          Wait
                          WshShell.SendKeys "require_all 'c;/plugins'{ENTER}"
                          
                          
                          
                          

                          Hi

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                          • jeff hammondJ Offline
                            jeff hammond
                            last edited by 8 Apr 2012, 03:18

                            @jim said:

                            @unknownuser said:

                            I'm doing GUI scripting so it's basically just keystrokes and menu items..

                            The Windows equivalent can be accomplished via Windows Scripting.

                            Here's a VBScript example:

                            set WshShell = WScript.CreateObject("WScript.Shell")
                            > 'WshShell.AppActivate "- SketchUp"
                            > Command = "C;\Program Files (x86)\Google\Google SketchUp 8\SketchUp.exe"
                            > MsgBox Command
                            > WshShell.Run Command
                            > WScript.Sleep 1000
                            > WshShell.SendKeys "%u" ' My SU Shortcut to open Ruby Console
                            > WScript.Sleep 1000
                            > WshShell.AppActivate "Ruby Console"
                            > WScript.Sleep 1000
                            > WshShell.SendKeys "require_all 'c;/plugins'"
                            > WScript.Sleep 1000
                            > WshShell.SendKeys "{ENTER}"
                            > 
                            

                            is something like that easy to run from within sketchup? (that's sort of the beauty of osx services.. they become a menu item so activating the script is the same for anything else in sketchup.)

                            regardless, you guys could probably write a macro recorder in ruby that in turn produces these services :enlighten:

                            nothing to do with recording cursor movement etc.. AppleScript can't handle it.. (eg- edit component, select all, explode, generate faces, exit component)

                            those steps are what ruby watches, then places the commands in a .scpt format and moves them to the services folder.

                            [edit-- sorry for not cleaning up the quotes in my replies.. im on a phone and deleting big chunks of text is no fun πŸ˜„ ]

                            dotdotdot

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                            • D Offline
                              Dan Rathbun
                              last edited by 8 Apr 2012, 04:19

                              Yep.. what Jim said.. however, his example can also be written in Ruby (on PC using the Win32ole.so extension, which many users have already installed to their "Plugins" directory, or they have it in their full Ruby library directory, if they have installed the full Ruby edition, and pushed it's lib path into the $LOAD_PATH array.)

                              So to use the "SendKeys" example (which seems to be a common function name in many of the programming languages available, from low-level C, to the higher level languages such as VB, C# etc.)

                              Goal: To provide a cross-platform Ruby method, named SendKeys() that sends keystrokes to the Sketchup application.

                              1) Choose a community namespace. As an example, lets say (for argument's sake,) this will go within the SKX project namespace, and beneath that we'll wrap it within a GUI submodule.

                              module SKX; end # make sure outer namespace is defined
                              
                              module SKX;;GUI
                              
                                if RUBY_PLATFORM =~ /(darwin)/i # on Mac
                              
                                  def self.SendKeys(keystring)
                                    # the Mac code using AppleScript
                                  end
                              
                                else # on Windows
                              
                                  def self.SendKeys(keystring)
                                    # the WIN code using Windows Scripting Host
                                  end
                              
                                end
                              
                              end # module SKX;;GUI
                              

                              This is the one file approach, which may not be the best, because it makes everyone update their file(s) even when a revision is made for a certain platform. I show it to make an important point about Ruby, in that it is a dynamic language that can be defined during runtime. (In this example, we would define the same method, two different ways, depending upon which platform it will run on.)

                              The separate file approach may be better. Where a user chooses an install package for the proper platform, so that their "Plugins/SKX/GUI" directory, only contains the Ruby object definitions for their platform.

                              To use this proposed feature, scripters would simply require the proper module definition file:

                              require("SKX/GUI/keyboard.rb") SKX::GUI::SendKeys("require_all 'c:/plugins'"+SKX::GUI::KBD::ENTER)

                              P.S.: Locally within a custom module or class, a scripter can create 'nickname' shortcut references that point at long nested qualified objects, like:
                              gui = SKX::GUI @kbd = SKX::GUI::KBD
                              or even:
                              ENTER = SKX::GUI::KBD::ENTER
                              So don't be afraid of well organized, multi-nested module namespaces.
                              Also.. if say, the KBD submodule was just a mixin module of constants, scripters could, if they wished, mix it into their module(s) or class(es) by inclusion:

                              module Author;;FancyPlugin
                                require("SKX/GUI/keyboard.rb")
                                include(SKX;;GUI;;KBD)
                                # now all constants in KBD module, are mixed in.
                              end
                              

                              πŸ’­

                              I'm not here much anymore.

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                              • jeff hammondJ Offline
                                jeff hammond
                                last edited by 8 Apr 2012, 17:10

                                the wording in AppleScript is keystroke.

                                keystroke "v" (for the v key)
                                keystroke "V" (is for shift + v)
                                keystroke "V" using command down (for shift-cmmd-v or paste in place)

                                likewise, you can also do menu items:

                                click menu item "Outer Shell" of menu "Tools"

                                dotdotdot

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                                • D Offline
                                  Dan Rathbun
                                  last edited by 8 Apr 2012, 22:28

                                  @unknownuser said:

                                  the wording in AppleScript is keystroke.

                                  Yea.. and what is the point your making ??

                                  I'm not here much anymore.

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                                  • jeff hammondJ Offline
                                    jeff hammond
                                    last edited by 9 Apr 2012, 00:19

                                    @dan rathbun said:

                                    @unknownuser said:

                                    the wording in AppleScript is keystroke.

                                    Yea.. and what is the point your making ??

                                    just saying that ruby could write the macro script. (but I'm pretty sure I'm not thinking about doing this the right way πŸ˜‰ )

                                    like if a user turns on the macro recorder (.rb plugin) then does a series of commands they want to automate then click 'stop ecording'(or whatever).. ruby will then write the commands used in a scpt file in the format of my previous post.. then puts it in the services folder so the user now has a sketchup macro without leaving sketchup or manually typing up an AppleScript.

                                    edit. oh, I was also just saying it's 'keystroke' in applescript as opposed to 'sendkeys'

                                    dotdotdot

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                                    • bmikeB Offline
                                      bmike
                                      last edited by 9 Apr 2012, 01:23

                                      Jeff,

                                      Very much hope you do a thread on how to use services in Mac. I've moved back to Mac after a too long trip through various PCs and am very curious about Services, AppleScript, and Automator. Anything you put together for Services in SketchUp would be appreciated.

                                      mike beganyi design + consulting llc

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                                      • jeff hammondJ Offline
                                        jeff hammond
                                        last edited by 9 Apr 2012, 16:35

                                        @bmike said:

                                        Jeff,

                                        Very much hope you do a thread on how to use services in Mac. I've moved back to Mac after a too long trip through various PCs and am very curious about Services, AppleScript, and Automator. Anything you put together for Services in SketchUp would be appreciated.

                                        I'm going to do a thread today on it.
                                        I think I'll keep it super basic at first then the thread can evolve from there into the other possibilities.

                                        dotdotdot

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                                        • bmikeB Offline
                                          bmike
                                          last edited by 9 Apr 2012, 16:38

                                          @unknownuser said:

                                          @bmike said:

                                          Jeff,

                                          Very much hope you do a thread on how to use services in Mac. I've moved back to Mac after a too long trip through various PCs and am very curious about Services, AppleScript, and Automator. Anything you put together for Services in SketchUp would be appreciated.

                                          I'm going to do a thread today on it.
                                          I think I'll keep it super basic at first then the thread can evolve from there into the other possibilities.

                                          Great!
                                          I'll keep an eye out for it!

                                          mike beganyi design + consulting llc

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