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    New API doc - typos and questions

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    • thomthomT Offline
      thomthom
      last edited by

      Face.plane
      http://code.google.com/apis/sketchup/docs/ourdoc/face.html#plane

      @unknownuser said:

      The plane method is used to retrieve the plane of the face. See the Array class for information on how planes are stored.

      It's unclear where this information is. I don't see it.

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

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      • daikuD Offline
        daiku
        last edited by

        @thomthom said:

        Face.plane
        http://code.google.com/apis/sketchup/docs/ourdoc/face.html#plane

        @unknownuser said:

        The plane method is used to retrieve the plane of the face. See the Array class for information on how planes are stored.

        It's unclear where this information is. I don't see it.

        From the Geom module:
        The plane is returned as an Array of 4 numbers which are the coefficients of the plane equation Ax + By + Cz + D = 0.

        Along with this helpful tidbit:
        NOTE: Lines and Planes are infinite. There are several good books on 3D math if you are new to the concepts of a line, plane, and vector.
        But if you go back to your high-school geometry text book (or google "plane equation") you'll find something like this:
        [a,b,c] will give a normal vector to the plane, and the normal distance from the origin is given by d / sqrt( a^2 + b^2 +c^2)

        Clark Bremer
        http://www.northernlightstimberframing.com

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        • thomthomT Offline
          thomthom
          last edited by

          Ah, it referred to the wrong module.

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

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          • thomthomT Offline
            thomthom
            last edited by

            Tool.onSetCursor
            http://code.google.com/apis/sketchup/docs/ourdoc/tool.html#onSetCursor

            It says that it returns the view as an argument. When I do that I get an wrong number of arguments(0 for 1) error. When I leave the argument out everything works.

            Another note;

            @unknownuser said:

            The onSetCursor method is called by SketchUp when the tool wants to set the cursor. If your tool needs to have more than one cursor, then you will need to implement this method, but if it only has one you can set the cursor in the activate method.

            It says that UI.set_cursor(id) can be called from the activate method of the tool if you only have one cursor. When I try that the cursor briefly flickers then reverts back to the default arrow.

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

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            • daikuD Offline
              daiku
              last edited by

              I just want to take a second to thank Thomas for his diligence in finding and documenting these inconsistencies. It's really going to make life easier for a lot of folks. CB.

              Clark Bremer
              http://www.northernlightstimberframing.com

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              • TIGT Offline
                TIG Moderator
                last edited by

                Just noticed that 'behavior' has some typos in the examples - '.xxx =' rather than '.xxx=' ...

                behavior.always_face_camera = NOT behavior.always_face_camera=
                behavior.cuts_opening = NOT behavior.cuts_opening=
                behavior.is2d = NOT behavior.is2d=
                behavior.no_scale_mask = NOT behavior.no_scale_mask=
                behavior.shadows_face_sun = NOT behavior.shadows_face_sun=
                behavior.snapto = NOT behavior.snapto=

                ...

                TIG

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                • thomthomT Offline
                  thomthom
                  last edited by

                  What? Whitespace matters?
                  I always put space between = .I believe that I used .is2d = for my doublecut plugin, and that appeared to work as expected...

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

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                  • TIGT Offline
                    TIG Moderator
                    last edited by

                    You are right in that it works... BUT the method is behavior.is2d= I thinks it's advisable to keep it like that...

                    TIG

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                    • thomthomT Offline
                      thomthom
                      last edited by

                      So this is a ruby thing? That the = is part of the method name? What about other operations where you use * - + / etc?
                      (I'm used to languages such as Javascript, PHP, VB, C# - still getting to grips with Ruby.)

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

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                      • TIGT Offline
                        TIG Moderator
                        last edited by

                        All of these, a = 2, a= 2, a =2 and a=2 work fine, as do 1 + 2 and 1+2, but I think with methods it's at least advisable to stick to the way it's defined, like xxx.is2d= true and xxx.include?(4) etc...

                        It works either way, but...

                        TIG

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                        • J Offline
                          Jim
                          last edited by

                          @thomthom said:

                          So this is a ruby thing? That the = is part of the method name? What about other operations where you use * - + / etc?
                          (I'm used to languages such as Javascript, PHP, VB, C# - still getting to grips with Ruby.)

                          Yes, those are all methods. also [] and []= are methods. You can define them for you own classes, as well as modify them for existing classes.

                          
                          class Array
                            def [](index)
                              return self[-index] # ha ha.
                            end
                          end
                          
                          

                          Hi

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                          • M Offline
                            MarkBergaas
                            last edited by

                            Behavior.snapto

                            I see two problems with the documentation of this method (I would like to call it a property, but that is probably my C# habit talking):

                            The "Returns:" section says it returns true or false, but it actually returns one of the 4 values listed in the description above "Returns:" (the default seems to be SnapTo_Arbitrary). The first sentence of the description ("The snapto method is used to verify the status of a component's "snap to" behavior.") also implies that the return value is a status, not the actual "snap to" selection.

                            It would be very helpful if the documentation of this method would make it clear that the value of Behavior.snapto works in conjunction with the value of Behavior.is2d to set the "glue to" behavior. If is2d equals false, the component will not glue to anything, no matter what value snapto returns. If is2d equals true, the component will glue to faces matching the snapto value.

                            I don’t think it is at all clear that these two (snapto and is2d) are related. It would be helpful to include a reference to snapto in the description of is2d, also.

                            This second issue applies equally, if not more, to the snapto= and is2d= methods.

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                            • J Offline
                              Jim
                              last edited by

                              Pages.add should contain some of this information about the meaning of the flags argument.

                              [ and also, Pages.add returns a Page object, not nil. ]

                              
                              # The Page Constants
                              Object.constants.grep /^pag/i
                              ["PAGE_USE_SECTION_PLANES", "PAGE_USE_ALL", "PAGE_NO_CAMERA", "PAGE_USE_CAMERA", "PAGE_USE_RENDERING_OPTIONS", "PAGE_USE_SHADOWINFO", "PAGE_USE_SKETCHCS", "PAGE_USE_HIDDEN", "PAGE_USE_LAYER_VISIBILITY"]
                              
                              
                              
                              model = Sketchup.active_model
                              pages = model.pages
                              index = 0
                              page = pages.add("New Page", PAGE_USE_ALL, index)
                              
                              

                              If you want to pick and choose which options, bitwise OR ( | ) the options together:

                              
                              model = Sketchup.active_model
                              pages = model.pages
                              index = 0
                              page = pages.add("New Page", (PAGE_USE_HIDDEN|PAGE_USE_CAMERA), index)
                              
                              

                              Hi

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                              • J Offline
                                Jim
                                last edited by

                                View.write_image

                                From my tests, write_image will accept several common image formats - .jpg, .bmp, .png at least. There is no mention of this in the docu. Just include the extension in the filename - as in "path/to/my_image.png"

                                If you do not provide the optional width or height, the image uses the View Size for the written image.

                                write_image returns true on success or false on failure, not nil (from my experience.)

                                Hi

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                                • thomthomT Offline
                                  thomthom
                                  last edited by

                                  Entities.add_arc
                                  http://code.google.com/apis/sketchup/docs/ourdoc/entities.html#add_arc

                                  @unknownuser said:

                                  Returns:
                                  arccurve
                                  an ArcCurve object if successful

                                  It returns an array of edges instead.

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

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                                  • A Offline
                                    avariant
                                    last edited by

                                    PolygonMesh.uv_at

                                    Arguments;  
                                    index    The index for the texture coordinate.
                                    

                                    Doesn't include the second argument, which is true for front face coordinates, false for back face.

                                    PolygonMesh.uvs
                                    Doesn't include the required argument, true for front face coordinates, false for back face.

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                                    • thomthomT Offline
                                      thomthom
                                      last edited by

                                      Camera.set
                                      http://code.google.com/apis/sketchup/docs/ourdoc/camera.html#set

                                      @unknownuser said:

                                      The initialize method is deprecated. It essentially does the same thing as Camera.set.

                                      Camera.set does what Camera.set does? ... "Spider Pig! Spider Pig! Does whatever piderpigs does."

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

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                                      • thomthomT Offline
                                        thomthom
                                        last edited by

                                        View.pickray
                                        http://code.google.com/apis/sketchup/docs/ourdoc/view.html#pickray

                                        @unknownuser said:

                                        The pickray method is used to retrieve a ray passing through a given screen position in the viewing direction.

                                        Returns:
                                        ray
                                        a ray

                                        The "ray" is a Line; Array [Point3D, Vector3D] and the Point3D is the camera.eye.

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

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                                        • Chris FullmerC Offline
                                          Chris Fullmer
                                          last edited by

                                          I hope Scott stops by soon. He's got a lot of stuff here to pick up 😄

                                          Chris

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

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                                          • thomthomT Offline
                                            thomthom
                                            last edited by

                                            Looking back at this thread I can trail the subjects I was looking into while making plugins. Like breadcrumbs. 😄

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

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