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    [Plugin] Boolean helper update 08122011

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    • liquid98L Offline
      liquid98
      last edited by

      Working on the feedback of the scale action (X = one time scaled up XX =two times etc.)
      I have some variable (array) filled with X characters. Its called $xfeedback

      To put it on screen I use:

      @xnote = model.add_note $xfeedback.to_s, 0.01, 0.02.

      That works. But to update it I would like to delete the screen-note entity before showing it again like this:

      model = Sketchup.active_model entities = model.active_entities entities.erase_entities(@xnote) if @xnote

      I know to delete something with erase_entities it has to be an array. So I tried also this:
      entities.erase_entities(@xnote.to_a) if @xnote

      but it's not working.

      Code structure is like this:

      <span class="syntaxdefault"><br />require </span><span class="syntaxstring">'sketchup.rb'<br /><br /></span><span class="syntaxdefault">$xfeedback </span><span class="syntaxkeyword">=</span><span class="syntaxdefault"> </span><span class="syntaxkeyword">[</span><span class="syntaxstring">"X"</span><span class="syntaxkeyword">,</span><span class="syntaxstring">"X"</span><span class="syntaxkeyword">,</span><span class="syntaxstring">"X"</span><span class="syntaxkeyword">,</span><span class="syntaxstring">"X"</span><span class="syntaxkeyword">]</span><span class="syntaxdefault">  </span><span class="syntaxcomment"># Test situation presuming 4 times scaled up.<br /><br /></span><span class="syntaxdefault">module Test<br /><br />class Scaledown<br />    <br /><br />def initialize</span><span class="syntaxkeyword">()</span><span class="syntaxdefault"> <br />         </span><span class="syntaxcomment"># Scaling action<br /></span><span class="syntaxdefault">         <br />     model </span><span class="syntaxkeyword">=</span><span class="syntaxdefault"> Sketchup</span><span class="syntaxkeyword">.</span><span class="syntaxdefault">active_model<br />     entities </span><span class="syntaxkeyword">=</span><span class="syntaxdefault"> model</span><span class="syntaxkeyword">.</span><span class="syntaxdefault">entities<br />     if entities</span><span class="syntaxkeyword">[</span><span class="syntaxdefault">0</span><span class="syntaxkeyword">]</span><span class="syntaxdefault"> </span><span class="syntaxkeyword">!=</span><span class="syntaxdefault"> nil<br />    <br />    l </span><span class="syntaxkeyword">=</span><span class="syntaxdefault"> $xfeedback</span><span class="syntaxkeyword">.</span><span class="syntaxdefault">length</span><span class="syntaxkeyword">.</span><span class="syntaxdefault">to_i </span><span class="syntaxkeyword">-</span><span class="syntaxdefault"> 1  <br />    $xfeedback</span><span class="syntaxkeyword">.</span><span class="syntaxdefault">delete_at</span><span class="syntaxkeyword">(</span><span class="syntaxdefault">l</span><span class="syntaxkeyword">)<br /></span><span class="syntaxdefault">    <br />     model </span><span class="syntaxkeyword">=</span><span class="syntaxdefault"> Sketchup</span><span class="syntaxkeyword">.</span><span class="syntaxdefault">active_model<br />    entities </span><span class="syntaxkeyword">=</span><span class="syntaxdefault"> model</span><span class="syntaxkeyword">.</span><span class="syntaxdefault">active_entities<br />    entities</span><span class="syntaxkeyword">.</span><span class="syntaxdefault">erase_entities</span><span class="syntaxkeyword">(@</span><span class="syntaxdefault">xnote</span><span class="syntaxkeyword">)</span><span class="syntaxdefault"> if </span><span class="syntaxkeyword">@</span><span class="syntaxdefault">xnote<br /><br />    </span><span class="syntaxkeyword">@</span><span class="syntaxdefault">xnote </span><span class="syntaxkeyword">=</span><span class="syntaxdefault"> model</span><span class="syntaxkeyword">.</span><span class="syntaxdefault">add_note $xfeedback</span><span class="syntaxkeyword">.</span><span class="syntaxdefault">to_s</span><span class="syntaxkeyword">,</span><span class="syntaxdefault"> 0.01</span><span class="syntaxkeyword">,</span><span class="syntaxdefault"> 0.02<br /><br /><br /><br />    else <br />    nil<br />    end</span><span class="syntaxcomment">#if<br /><br /><br /><br /><br /><br /><br /></span><span class="syntaxdefault">end</span><span class="syntaxcomment">#def<br /></span><span class="syntaxdefault">end</span><span class="syntaxcomment">#class<br /></span><span class="syntaxdefault">end</span><span class="syntaxcomment">#module             &nbsp;</span><span class="syntaxdefault"></span>
      

      Please help

      Things that flourish fall into decay. This is not-Tao, And what is not-Tao soon ends ~ Lao tse

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      • TIGT Offline
        TIG Moderator
        last edited by

        Shouldn't it be @@xnote ?
        Anyway, something like...
        entities.erase_entities(@xnote)
        should work... or use [@xnote] to make it an array, if it MUST be one (?)...
        However, this will work too
        @xnote.text='newtext'
        to change it ???

        TIG

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        • D Offline
          driven
          last edited by

          may not be of any help, but

          when you create a screen note SU creates a new Text entity (each time)

          "#Sketchup::Text:0x1ef0a000", "#Sketchup::Text:0x1f0131a4", etc...

          so I guess if you capture those you can delete them.

          john

          learn from the mistakes of others, you may not live long enough to make them all yourself...

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          • liquid98L Offline
            liquid98
            last edited by

            Hello friends,

            I made some improvements to the boolean-helper plugin:

            • it scales everything in the model
            • it gives feedback on the total scale-factor
            • it auto zooms to the model-extents.

            But I need some help:

            When the model is scaled up, feedback is generated in the form of a sketchup::text
            entity. My problem: when the the model is deleted (not select all), the text entity remains on the screen ( entities[0]) while there is no model.

            So I have to monitor that.

            How do I do that??

            I came up with this solution:

            <span class="syntaxdefault">if  entities</span><span class="syntaxkeyword">[</span><span class="syntaxdefault">0</span><span class="syntaxkeyword">].</span><span class="syntaxdefault">class </span><span class="syntaxkeyword">==</span><span class="syntaxdefault"> Sketchup</span><span class="syntaxkeyword">;;</span><span class="syntaxdefault">Text </span><span class="syntaxkeyword">&&</span><span class="syntaxdefault"> entities</span><span class="syntaxkeyword">[</span><span class="syntaxdefault">1</span><span class="syntaxkeyword">]</span><span class="syntaxdefault"> </span><span class="syntaxkeyword">==</span><span class="syntaxdefault"> nil<br />         </span><span class="syntaxkeyword">@@</span><span class="syntaxdefault">xnote </span><span class="syntaxkeyword">=</span><span class="syntaxdefault"> entities</span><span class="syntaxkeyword">[</span><span class="syntaxdefault">0</span><span class="syntaxkeyword">]<br /></span><span class="syntaxdefault">         </span><span class="syntaxkeyword">@@</span><span class="syntaxdefault">notetext </span><span class="syntaxkeyword">=</span><span class="syntaxdefault"> </span><span class="syntaxstring">"   "<br /></span><span class="syntaxdefault">         </span><span class="syntaxkeyword">@@</span><span class="syntaxdefault">xnote </span><span class="syntaxkeyword">=</span><span class="syntaxdefault"> model</span><span class="syntaxkeyword">.</span><span class="syntaxdefault">add_note </span><span class="syntaxkeyword">@@</span><span class="syntaxdefault">notetext</span><span class="syntaxkeyword">,</span><span class="syntaxdefault"> 0.01</span><span class="syntaxkeyword">,</span><span class="syntaxdefault"> 0.99</span>
            

            But if I put this code in booleanhelper.rb it only runs when the user invokes it.
            While it has to run all the time.

            I've also read something about Sketchup::EntityObserver. Is that relevant in this case???

            Thnx for your help

            Things that flourish fall into decay. This is not-Tao, And what is not-Tao soon ends ~ Lao tse

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            • mitcorbM Offline
              mitcorb
              last edited by

              Well, for those who work in Imperial units==inches, it would be cool if you could set the scale factor to overcome the small faces problem but type in the VCB the same numbers as you would if you had not scaled it. Basically, to do away with a bunch of mental math for every value. When finished, reset the scale factor to 1. There's a flaw here somewhere??

              I take the slow, deliberate approach in my aimless wandering.

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              • liquid98L Offline
                liquid98
                last edited by

                @mitcorb said:

                Well, for those who work in Imperial units==inches, it would be cool if you could set the scale factor to overcome the small faces problem but type in the VCB the same numbers as you would if you had not scaled it.

                Hi mitcorb,

                That's a nice idea, but I have no clue to achieve it..

                Indeed, the script I'm working on scales up as much as you want and than scales everything down to scalefactor 1.
                In scaled up state there's a screen-note reference to the actual scale-factor.

                Things that flourish fall into decay. This is not-Tao, And what is not-Tao soon ends ~ Lao tse

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                • TIGT Offline
                  TIG Moderator
                  last edited by

                  Liquid98

                  About the screen-text...
                  Do you mean that it disappears if there is suddenly no other model geometry ?
                  As soon as any new geometry is added it should reappear ??
                  I don't see the problem ? On the rare occasions when the user has deleted the entire model [and why would they do that?] the scaling becomes irrelevant anyway, so they can just delete it ?

                  To spot if the only thing left is your screen-text and then erase with an observer to watch for this use

                  
                  class OnlyScreenTextLeftEntitiesObserver < Sketchup;;EntitiesObserver
                    def onEraseEntities(entities)
                      return if entities[1]
                      entities[0].erase! if entities[0].class==Sketchup;;Text and entities[0].text==$xfeedback.to_s ###??
                    end
                  end
                  # Attach the observer - do this once at startup
                  Sketchup.active_model.entities.add_observer(OnlyScreenTextLeftEntitiesObserver.new)
                  
                  

                  TIG

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                  • liquid98L Offline
                    liquid98
                    last edited by

                    Hi TIG,

                    @tig said:

                    I don't see the problem ? On the rare occasions when the user has deleted the entire model [and why would they do that?] the scaling becomes irrelevant anyway, so they can just delete it ?

                    I admit, that situation won't occur very often. But I only want to tackle it to learn new stuff... 😛

                    When I put your code in a .rb file, like this:

                    <span class="syntaxdefault">    require </span><span class="syntaxstring">'sketchup.rb'<br /><br /></span><span class="syntaxdefault">    class OnlyScreenTextLeftEntitiesObserver </span><span class="syntaxkeyword"><</span><span class="syntaxdefault"> Sketchup</span><span class="syntaxkeyword">;;</span><span class="syntaxdefault">EntitiesObserver<br />      def onEraseEntities</span><span class="syntaxkeyword">(</span><span class="syntaxdefault">entities</span><span class="syntaxkeyword">)<br /></span><span class="syntaxdefault">    UI</span><span class="syntaxkeyword">.</span><span class="syntaxdefault">messagebox </span><span class="syntaxstring">"OK"<br /></span><span class="syntaxdefault">     end<br />    end<br />  <br />   <br />    Sketchup</span><span class="syntaxkeyword">.</span><span class="syntaxdefault">active_model</span><span class="syntaxkeyword">.</span><span class="syntaxdefault">entities</span><span class="syntaxkeyword">.</span><span class="syntaxdefault">add_observer</span><span class="syntaxkeyword">(</span><span class="syntaxdefault">OnlyScreenTextLeftEntitiesObserver</span><span class="syntaxkeyword">.new)</span><span class="syntaxdefault"> </span>
                    

                    and then start sketchup, create some entities and delete them,

                    Nothing happens... Why??

                    Things that flourish fall into decay. This is not-Tao, And what is not-Tao soon ends ~ Lao tse

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                    • TIGT Offline
                      TIG Moderator
                      last edited by

                      Well if it did work every time you erased something you'd get the messagebox...
                      The EntitesObserver is known to be buggy... if we did get it to work and erased an entity within it it'd probably crash anyway - so my snippet probably wasn't the best idea 😒
                      How about using a selectionObserver...onBulkChange() - you select the things and then erase them and the selection changes... and then looking at model.entities if no [1] and [0] meets test erase it ...
                      http://code.google.com/apis/sketchup/docs/ourdoc/selectionobserver.html

                      TIG

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                      • liquid98L Offline
                        liquid98
                        last edited by

                        I updated the booleanhelper plugin! Please see the first post of this topic.

                        Things that flourish fall into decay. This is not-Tao, And what is not-Tao soon ends ~ Lao tse

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                        • D Offline
                          driven
                          last edited by

                          hi,

                          I believe I just exposed a bug, doing another testhttp://forums.sketchucation.com/viewtopic.php?f=180&t=38858&p=354541#p354541

                          when I have 'auto paint tool' Mac preference set, your twee tekst and LEEEEEG message boxes pop up every time I select or delete something even though I wasn't using your tool.

                          appears to be "Sketchup::SelectionObserver" related.

                          I'd rather use this then that, but I'd like the option of both...

                          cheers

                          john

                          learn from the mistakes of others, you may not live long enough to make them all yourself...

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                          • liquid98L Offline
                            liquid98
                            last edited by

                            Hi John,

                            Just download and install latest version -see first post of this topic.

                            Good luck!

                            Things that flourish fall into decay. This is not-Tao, And what is not-Tao soon ends ~ Lao tse

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                            • D Offline
                              driven
                              last edited by

                              cheers,
                              I'll let you know if I have any issues,,,

                              john

                              learn from the mistakes of others, you may not live long enough to make them all yourself...

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                              • C Offline
                                CT4
                                last edited by

                                Thank you Thank you Thank you. I model small parts for RC aircraft and run into so many problems when I try and lathe them or intersect them. This fixes all of the problems.

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                                • liquid98L Offline
                                  liquid98
                                  last edited by

                                  It's always nice to hear that my script helped you out! Apparently it works also on a Mac; never tested it 🎉 🎉

                                  Things that flourish fall into decay. This is not-Tao, And what is not-Tao soon ends ~ Lao tse

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                                  • cottyC Offline
                                    cotty
                                    last edited by

                                    Thank you for this helpful plugin!

                                    my SketchUp gallery

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                                    • S Offline
                                      sboup
                                      last edited by

                                      @liquid98 said:

                                      This is my modest contribution to the community:

                                      Booleanhelper

                                      The Boooleanhelper plug-in lets you quickly scale up and down your model.
                                      This is especially useful for those people who use Sketchup for 3d printing.
                                      Performing boolean operations or lathe operations on small models (mm size) is problematic in Sketchup, because Sketchup doesn't handle small faces very well.
                                      By scaling up the model these problems disappear. After all operations are done
                                      you can scale down your model to its original dimensions.
                                      Also useful to close small holes in your model.

                                      Your opinions and suggestions are welcome!

                                      Features:

                                      • Visual feedback on scale-factor.
                                      • Scale down at once.
                                      • It is possible to save your work, and scale down later. (feedback not yet provided)
                                      • Auto zoom extents.

                                      Installation:
                                      Open the zipfile and copy booleanhelper.rb and the folder called Booleanhelper into the SU plugins directory.

                                      Have fun!!

                                      If you have problems with unsolicited messageboxes, please download the latest version below:

                                      Wonderfull. Thanks ☀

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                                      • A Offline
                                        Aggertroll
                                        last edited by

                                        I love this script - does exactly what it is supposed to (on my Mac) and lets me design small parts for 3D print in a larger scale. Very helpful - thanks!

                                        I have one small comment/request: I am using Fredo6's "!Additional.Pluginfolders" plugin to sync my plugins via dropbox across my different machines - great help by the way. I noticed that the icon in the toolbar will not show for the Boolean helper if that plugin resides in my plugin folder on dropbox; it must be looking for the icon in the standard plugin folder. Is there a way to fix that? As in "Get the image from the folder Booleanhelper in the same folder that this script is in" - if that makes sense?

                                        There are of course simple ways to fix this - install Booleanhelper on all machines - but the fix would remove a glitch when using a custom plugin folder. Thank you for your efforts!

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                                        • D Offline
                                          driven
                                          last edited by

                                          @aggertroll said:

                                          There are of course simple ways to fix this...

                                          change line 296 in a plain text editor, and re-save...

                                                  plugins = Sketchup.find_support_file("Plugins")
                                          

                                          to

                                                plugins = File.dirname(__FILE__)
                                          

                                          john

                                          learn from the mistakes of others, you may not live long enough to make them all yourself...

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                                          • A Offline
                                            Aggertroll
                                            last edited by

                                            John: Thanks a bunch. Works!

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