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[Plugin] Scale Face to Target Area - TIG

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  • T Offline
    TIG Moderator
    last edited by 9 Aug 2012, 15:26

    I've updated the .rb in your post and edited the post's text to match [hope you are OK with that 😉 ]
    It now handles all Unit-types/Fractional/Engineering etc properly.
    One oddity is that 'Engineering' displays on screen in 'feet', but the API unit-type [LengthUnit] is left in 'inches' [0] - unlike all other types where the 'LengthUnit' matches the displayed-unit.

    Anyway it now works for all combos... I hope 😕

    TIG

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    • E Offline
      EarthMover
      last edited by 9 Aug 2012, 16:12

      Works great now. Thanks again.

      3D Artist at Clearstory 3D Imaging
      Guide Tool at Winning With Sketchup
      Content Creator at Skapeup

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      • H Offline
        hebeijianke
        last edited by 9 Aug 2012, 17:36

        @tig said:

        I've updated the .rb in your post and edited the post's text to match [hope you are OK with that 😉 ]

        This plug-in only applies to the quadrangle

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        • T Offline
          TIG Moderator
          last edited by 9 Aug 2012, 18:04

          NO, it works on any face.
          The selected face is simply scaled to have the desired area.
          The dialog shows the current area in current units.
          You enter the new area and OK.
          The selected face is made to have that area.
          So if it's a square, a star or a circle it doesn't matter...

          TIG

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          • B Offline
            bmike
            last edited by 9 Aug 2012, 19:31

            This is a great little plugin.
            Any chance to make it work in square ft, when my units are set to Architectural?

            Or do I need to divide by hand first...?

            mike beganyi design + consulting llc

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            • E Offline
              EarthMover
              last edited by 9 Aug 2012, 19:34

              Works on almost any face. Faces created by the freehand tool seem to fail to resize properly. Not sure why.

              3D Artist at Clearstory 3D Imaging
              Guide Tool at Winning With Sketchup
              Content Creator at Skapeup

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              • J Offline
                jorge2011
                last edited by 9 Aug 2012, 20:52

                @thomthom said:

                @jorge2011 said:

                You see this plugin?

                http://rubits.com/play.php?file=areascale

                That's nice looking. The VCB is a nice way to control it. But I think $10 is too much for such a trivial script. 😕

                YES thomthom. You are right, it's a plugin with a high cost.
                I made the post, the plugin is very interesting, and has features that can be added to the free version plugin of sr. TIG.

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                • T Offline
                  TIG Moderator
                  last edited by 10 Aug 2012, 08:46

                  @bmike said:

                  This is a great little plugin.
                  Any chance to make it work in square ft, when my units are set to Architectural?
                  Or do I need to divide by hand first...?
                  Here's a version of the code for users who want to work in feet OR inches [any kind] and see 'sq ft' areas; it also does 'sq m' areas if the user is using any metric units [m/cm/mm]... Copy the code and paste it into the .rb file using Notepad or similar plain-text editor - overwriting all of the original code...

                  require 'sketchup.rb'
                  ###
                  module TIG
                  ### scales a selected face about its center to a new area, in current units.
                  	def self.scale_face()
                  		model=Sketchup.active_model
                  		es=model.active_entities
                  		ss=model.selection
                  		fa=nil
                  		fa=ss[0] if ss[0]
                  		unless fa && fa.is_a?(Sketchup;;Face)
                  			UI.messagebox("Scale_Face;\n\nPreSelect ONE FACE !")
                  			return nil
                  		end
                  		ar=fa.area
                  		mo=model.options["UnitsOptions"]
                  		if mo["LengthUnit"] > 1 ### metric
                  			units="m"
                  			ar=ar*25.4*25.4/1000/1000
                  		else ### ft/"
                  			units="ft"
                  			ar=ar/12.0/12.0
                  		end
                  		rs=inputbox(["New Area [sq "+units+"];        "], [ar], "Scale_Face")
                  		return nil unless rs
                  		na= rs[0]
                  		na= -na if na < 0
                  		unless na>0
                  			UI.beep
                  			return nil
                  		end
                  		ro=Math.sqrt(na/ar)
                  		pt=fa.bounds.center
                  		tr=Geom;;Transformation.scaling(pt, ro)
                  	  model.start_operation("Scale_Face")
                  		es.transform_entities(tr, fa.vertices)
                  	  model.commit_operation
                  	end
                  	###
                  	UI.menu("Plugins").add_item("Scale_Face"){self.scale_face()} unless file_loaded?(__FILE__)
                  	file_loaded(__FILE__)
                  	###
                  end
                  ###
                  
                  

                  TIG

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                  • E Offline
                    EarthMover
                    last edited by 10 Aug 2012, 15:45

                    Thanks TIG. That's even better!

                    3D Artist at Clearstory 3D Imaging
                    Guide Tool at Winning With Sketchup
                    Content Creator at Skapeup

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                    • T Offline
                      TIG Moderator
                      last edited by 10 Aug 2012, 15:46

                      Do you want to add an alternative version .rb in the first post ?

                      TIG

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                      • E Offline
                        EarthMover
                        last edited by 10 Aug 2012, 16:10

                        Sure, I can. If you feel like dropping it in it's own thread for proper indexing, let me know and I'll remove the bracketed plugin wording. Or feel free to edit it yourself if need be. I don't mind at all.

                        3D Artist at Clearstory 3D Imaging
                        Guide Tool at Winning With Sketchup
                        Content Creator at Skapeup

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                        • I Offline
                          irich
                          last edited by 27 Sept 2012, 20:27

                          Hi guys!

                          Thank you for this plugin it’s very very useful.
                          My question is, is it possible to make it scale texture on face too?
                          If you for example have one projected texture on face.

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                          • GaieusG Offline
                            Gaieus
                            last edited by 27 Sept 2012, 20:47

                            Hi Miso,

                            You may be interested in this plugin: http://forums.sketchucation.com/viewtopic.php?t=18992

                            Gai...

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                            • zhangyu200831Z Offline
                              zhangyu200831
                              last edited by 2 Nov 2012, 01:27

                              Thank you TIG

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                              • L Offline
                                luozhan
                                last edited by 17 Jun 2022, 19:20

                                Thanks TIG. It's a very useful tool. Is there a way to scale the other faces with the same ratio? The plugin only scale the selected face, but the remaining faces remain unchanged as shown below:

                                step 3.png

                                Please let me know. Thank you so much again!

                                Best regards,
                                Leo

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                                • L Offline
                                  luozhan
                                  last edited by 17 Jun 2022, 20:20

                                  Never mind. I finally figured it out after I look into the rb code. I just use the scale tool and type in a ratio = square root of (new area/old area).

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                                  • O Offline
                                    ovaleks
                                    last edited by 25 Nov 2023, 15:12

                                    The one who causes is like the one who does .Teşekkür ederim tig

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                                    • O Offline
                                      ovaleks
                                      last edited by 10 Mar 2024, 13:32

                                      https://img.onl/OCybYb
                                      Hello, thank you for the plugin. It's great.

                                      How can I equalize the areas in the photo I sent? Equal area

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                                      • T Offline
                                        TIG Moderator
                                        last edited by 10 Mar 2024, 14:25

                                        The plugin isn't intended for that use.
                                        I assume you ask how to add lines across a single face to end up with four faces of equal areas...

                                        How about this for an idea...
                                        Get my CofG tool.
                                        Delete any edges that spit the face, so that it's now one.
                                        Give that face a thickness with PushPull, so it's a solid volume, then group it.
                                        Now use CofG on the group, and the center of the volume is marked.
                                        Edit the group and add a line across it through this center marker.
                                        This should now have equal areas for the two parts.
                                        Copy the group to one side and now re-edit the group and PushPull one side till it disappears.
                                        Now you have a part with the half-area.
                                        Repeat the edit on the group copy, this time erasing the other half.
                                        Now you have two groups containing equal area parts.

                                        Repeat the whole process on each group to end up with four groups containing 1/4 area parts.

                                        Edit the groups and delete the unwanted faces/edges so you end up with single faces.
                                        Viewing sideways and selecting by fence is a quick way to leave just the top face.

                                        Arrange the 4 groups so that they align on the cut edges.

                                        If desired, explode the 4 groups so that the 4 faces join along the cuts.

                                        You can total/measure the whole starting area, the 1/4 parts are easily calculated and then checked against this.

                                        TIG

                                        O 1 Reply Last reply 12 Mar 2024, 16:32 Reply Quote 0
                                        • O Offline
                                          ovaleks
                                          last edited by 10 Mar 2024, 17:38

                                          @tig said:

                                          The plugin isn't intended for that use.
                                          I assume you ask how to add lines across a single face to end up with four faces of equal areas...

                                          How about this for an idea...
                                          Get my CofG tool.
                                          Delete any edges that spit the face, so that it's now one.
                                          Give that face a thickness with PushPull, so it's a solid volume, then group it.
                                          Now use CofG on the group, and the center of the volume is marked.
                                          Edit the group and add a line across it through this center marker.
                                          This should now have equal areas for the two parts.
                                          Copy the group to one side and now re-edit the group and PushPull one side till it disappears.
                                          Now you have a part with the half-area.
                                          Repeat the edit on the group copy, this time erasing the other half.
                                          Now you have two groups containing equal area parts.

                                          Repeat the whole process on each group to end up with four groups containing 1/4 area parts.

                                          Edit the groups and delete the unwanted faces/edges so you end up with single faces.
                                          Viewing sideways and selecting by fence is a quick way to leave just the top face.

                                          Arrange the 4 groups so that they align on the cut edges.

                                          If desired, explode the 4 groups so that the 4 faces join along the cuts.

                                          You can total/measure the whole starting area, the 1/4 parts are easily calculated and then checked against this.

                                          tig, excellent explanation, I will try and work on it, thank you, I follow you closely, your help is invaluable, thank you for your interest, best regards, tig

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