sketchucation logo sketchucation
    • Login
    ℹ️ Licensed Extensions | FredoBatch, ElevationProfile, FredoSketch, LayOps, MatSim and Pic2Shape will require license from Sept 1st More Info

    [Plugin] Hatchfaces (v1.8 beta) UPDATED 15-Dec-2012

    Scheduled Pinned Locked Moved Plugins
    360 Posts 41 Posters 228.5k Views 41 Watching
    Loading More Posts
    • Oldest to Newest
    • Newest to Oldest
    • Most Votes
    Reply
    • Reply as topic
    Log in to reply
    This topic has been deleted. Only users with topic management privileges can see it.
    • TIGT Offline
      TIG Moderator
      last edited by

      The layer part is easy. Add some code to make/refer to the layer
      hatch_layer=model.layers.add("HATCH")
      If it doesn't exist it's made...
      Then after the group is made use...
      group.layer=hatch_layer
      Done πŸ˜„

      You could add a 'crosshatch' option to the main dialog, because most of the time that's what's wanted anyway - "Crosshatch? " >> "Yes|No" [you'd need to insert a 3rd ['','',["Yes|No"]] in inputbox moving the title over to 4th place] - default would be 'No'. If results[3]=='Yes' you'd repeat the line drawing steps within the same group entities, but at +/-90 degrees, so there would be twice as many edges overlaid etc... πŸ’­

      How are the 'holes' going... ❓

      TIG

      1 Reply Last reply Reply Quote 0
      • jolranJ Offline
        jolran
        last edited by

        He he! As easy as that, huh? πŸ˜„ Well there you have it guys!

        I will work on those things. And put an option of angle on second hatching. That would give you as much flexibility as
        needed for linehatching I presume?

        The "holes"... Hmm difficult. I have been searching posts about that subject(Don't just want to add anything unless I actually understand what is going on). If I understood it right, holes are somewhat problematic in Sketchup. One have to
        use both face.outer_loops AND face_loops to get to the face hole geometry? Where face_loops is innerloop? Or include.all loops? That is a big difference.

        In API it says: Face outer_loops retrieves a "face loop object" But what does that mean?
        Edges, vertices? Both? Is it an array?

        For a newbie like me to interprate the API is quite difficult.
        The posts in here are very helpful, but it takes time to search specific posts. There are currently around 146 pages * 25 * (number replies) in just the developper section. πŸ˜„

        So with that said, I am very greatful for your help TIG.

        1 Reply Last reply Reply Quote 0
        • TIGT Offline
          TIG Moderator
          last edited by

          all_loops=face.loops i.e. its is an array of all loops including the outer one
          outer_loop = face.outer_loop inner_loops = all_loops - [outer_loop]
          Although some of this is of academic interest as we only need all_loops...

          As I said before [in a PM]... you simply iterate through all loops and add a face for each loop using its vertices.
          all_loops.each{|loop|gents.add_face(loop.vertices)}
          You have the main face drawn... but with its holes filled in with other faces.
          We can erase these by testing to see if each face in gents has an edge with only one face [i.e. it's NOT in a hole], if not then we'll erase it...

          faces2go=[]
          gents.each{|face|
            next if face.class!=Sketchup;;Face
            face.edges.each{|e|
              if not e.faces[1]
                break
              end
              faces2go << face
            }
          }
          gents.erase_entities(faces2go)
          
          

          [this code is untested and might have typos !]
          Now you should have a perfect clone of the face inside the group with any holes reproduced too.
          Do your intersecting of the hatch lines etc just as before and then when you erase 'faceless edges' the ones now crossing these 'holes' will be erased too πŸ˜„

          TIG

          1 Reply Last reply Reply Quote 0
          • jolranJ Offline
            jolran
            last edited by

            Great info! Will work on that.

            Do you mean {|loop|gents.add_face

            or {|loop|ents.add_face ?

            Thank you TIG. Got me some homework πŸ˜„

            1 Reply Last reply Reply Quote 0
            • TIGT Offline
              TIG Moderator
              last edited by

              The 'gents' refers to the group.entities where we are replicating the face ?

              TIG

              1 Reply Last reply Reply Quote 0
              • jolranJ Offline
                jolran
                last edited by

                Yes that make sence. I had already put a similar code from your pm in my editor where I had used ents.

                That was wrong then from my part. Makes thing clearer. Thanks! πŸ˜„

                1 Reply Last reply Reply Quote 0
                • jolranJ Offline
                  jolran
                  last edited by

                  Strange. Should work, but no innerface is created.
                  Hatch gets created over whole face. I tried different combinations with
                  these new lines added, but get errors then..

                  gp=ents.add_group()
                        gp.name=name
                        gents=gp.entities
                        face=gents.add_face(face.outer_loop.vertices) # adds a faceclone from outer vertices loop
                        faces2go=[]  # was faces2gp? Typo? array for innerloups faces
                        face.loops.each{|loop|gents.add_face(loop.vertices)}   # creates inner loop 
                        gents.each{|face|
                        next if face.class!=Sketchup;;Face     
                        face.edges.each{|e|
                        if not e.faces[1]
                        break
                        end
                      faces2go << face
                    }
                  }
                        gents.erase_entities(faces2go)                #erase the faces in the holes 
                  
                  1 Reply Last reply Reply Quote 0
                  • TIGT Offline
                    TIG Moderator
                    last edited by

                    Try first adding the faces for the 'inner_loops' - each using loop.vertices in turn [i.e. face.loops-[face.outer_loop]], then add the face from face.outer_loop.vertices...
                    This might work... To see what you are getting stop the code temporarily before the inner faces are erased and before any hatching is done - add a line 'return nil' in the code so that it stops... You should get the faces reproduced in the group. Then try with the inner face erase bit to see if they go [sans hatching...] πŸ˜•

                    TIG

                    1 Reply Last reply Reply Quote 0
                    • S Offline
                      sergey2402
                      last edited by

                      Perhaps the thickness of the hatch lines should not be equal to the thickness of the edges? Like dimension lines.

                      1 Reply Last reply Reply Quote 0
                      • jolranJ Offline
                        jolran
                        last edited by

                        Not noow Kato!! πŸ‘Š πŸ˜„

                        I don't understand Sergey. Do you want line weight? That is only possible
                        through styles in Sketchup. But it's a global feature. I am afraid I can't do anything about that. Maybe if thin rectangles are grouped with materials
                        like TIG,s dashed lines. But that is further on in developement.

                        Look at my last minitut for an example how you can use differnt styles, with edge profiles for ex.

                        Thanks for input Sergey! MUST CODE ON!! πŸ‘

                        And yes TIG. I'm trying! πŸŽ‰

                        1 Reply Last reply Reply Quote 0
                        • jolranJ Offline
                          jolran
                          last edited by

                          This code gives me a face with holes. If I stop after this code.
                          But cannot Hatch faces with holes in full script.
                          Get an error πŸ˜•
                          Normal (square faces) works fine in full script with the changed code, strange enough.

                          gp.layer=hatch_layer    # group to Hatching layer
                                gp.name=name
                                gents=gp.entities
                                faces2go=[]
                                face.loops.each{|loop|gents.add_face(loop.vertices)}
                                
                                gents.each{|face| 
                                next if face.class!=Sketchup;;Face     
                                face.edges.each{|e|
                                if not e.faces[1]
                                break
                                end
                                faces2go << face
                            }
                          }
                           
                           gents.erase_entities(faces2go)                #erase the faces in the holes 
                          
                          1 Reply Last reply Reply Quote 0
                          • TIGT Offline
                            TIG Moderator
                            last edited by

                            Why not?
                            How are you hatching?
                            Stop at each stage with a temporary 'return nil' and see what you get or error messages etc... πŸ˜•

                            TIG

                            1 Reply Last reply Reply Quote 0
                            • L Offline
                              linea
                              last edited by

                              Tig this is brilliant, wanted this for so long.

                              1 Reply Last reply Reply Quote 0
                              • S Offline
                                sergey2402
                                last edited by

                                Whether not too much I want? 😳


                                hatching01.jpg

                                1 Reply Last reply Reply Quote 0
                                • K Offline
                                  kyyu
                                  last edited by

                                  jolran, a few suggests for you to consider.

                                  1. Seperate out the code that draws the line pattern, into it's own method. That will make your main program simpler to understand. It will look more like an outline. Check out my later example code snippet. I just premade the line pattern, by hand, which would represent simply calling a method to make it. Also, you can reuse the draw_lines method, say if you want to draw a 2nd set in the criss cross direction.

                                  2. Might want to consider a rethink. The program will become more complicated, if you just keep adding stuff on top of exsiting. Here's a possible new way, shown below. And the way I test stuff quickly, is to use the "Ruby Web Console" plugin by Jim Foltz. I often check parts of my program, like this, as snippets of code; before adding it to the plugin. You simply undo <ctrl+z>, change the line(s) of code and execute the code again, by hitting the "eval button".

                                  #This snippet puts the face,lines & hatch into 3 seperate groups.  Face is simply grouped, not copied.
                                  #The "lines" group is premade and named "lines", so the script can find it.
                                  #You need to select the face, before running script
                                  #No need to delete seperate edges, just delete the lines group when done.
                                  model = Sketchup.active_model
                                  ent = model.entities
                                  sel = model.selection
                                  f = sel[0]
                                  face = ent.add_group(f)
                                  lines = (ent.to_a.select {|e| e.is_a?(Sketchup;;Group) and e.name=="lines"})[0]
                                  puts lines
                                  hatch = ent.add_group
                                  hent=hatch.entities; lent=lines.entities; fent=face.entities
                                  htr=hatch.transformation; ltr=lines.transformation; ftr=face.transformation
                                  fent.intersect_with(true, ftr, hent, htr, false, lines)
                                  lines.erase!
                                  face.explode
                                  

                                  Snippet of code and model set up to run
                                  ![After pressing "eval" button](/uploads/imported_attachments/Hdko_test_hatch_rwc_after.png "After pressing "eval" button")
                                  test_hatch_RubyWebConsole.skp

                                  1 Reply Last reply Reply Quote 0
                                  • J Offline
                                    Jim
                                    last edited by

                                    This is very useful, jolran. Thanks for making it happen.

                                    Hi

                                    1 Reply Last reply Reply Quote 0
                                    • K Offline
                                      kaas
                                      last edited by

                                      wonderful!! This kind of plugin (hopefully someday with some extra hatch options) is really what I was missing in SU.

                                      Many thanks to those involved!

                                      1 Reply Last reply Reply Quote 0
                                      • jolranJ Offline
                                        jolran
                                        last edited by

                                        Sergey, thanks for your suggestions πŸ‘ I will probably go for something like the picture, first time around.
                                        Unless I'm wrong you have to use webdialog for checkboxes, and I'll put that on hold for now.
                                        More important issues to deal with first.

                                        Hi Kyyu. Many thanks for your input and experimenting. Really appreciate it πŸ‘
                                        I got a strong impression from reading this forum, that making groupes from selection is a bad choice? πŸ˜•
                                        Thats why I neglected my original idea and went for TIG's "face.clone iterating stuff". Don't you get splats doing it like that? Have you tried this inside a group? I got constant splats doing almost exactly as you did.

                                        However grouping the edges before doing an intersect_with might be a good idea. That might actually be an easier method than iteration the edges for erasing? Depends on how "splat-prone" the method is.

                                        About separating to 3 groups. Don't know if that is necessary? Doesent it suffice to add the hatches to a new layer? (Which is already implemented in my current code). This grouping In my opinion does no good for the workflow. Need more feedback about that, please πŸ˜„

                                        @unknownuser said:

                                        Seperate out the code that draws the line pattern, into it's own method

                                        Yeah, I know code's a bit messy, but doing a second hatching that is probably a must anyway.
                                        I'm using AS ruby code editor. It's the same as Jim's no?

                                        Thank you Jim and Kaas! And TIG's been helping me a LOT, that goes without saying.


                                        cross_menu.jpg

                                        1 Reply Last reply Reply Quote 0
                                        • jolranJ Offline
                                          jolran
                                          last edited by

                                          YES!!!! Faces with holes are hatching now. Will update tomorrow, hopefully.

                                          Stupid newbie-mistake. I did not create "@face" object. So for ex bb=face.bounds
                                          did not have anything to refer to since face was in Faces2go's scope. At least that is what I think happend. πŸ˜„

                                          Will test more before I celebrate too much...

                                          Sorry TIG, I missed your post from yesterday. I wasent using return nil. I used =begin and =end. That works equally good?

                                          1 Reply Last reply Reply Quote 0
                                          • jolranJ Offline
                                            jolran
                                            last edited by

                                            Testing.


                                            holes.jpg

                                            1 Reply Last reply Reply Quote 0
                                            • 1
                                            • 2
                                            • 3
                                            • 4
                                            • 5
                                            • 17
                                            • 18
                                            • 3 / 18
                                            • First post
                                              Last post
                                            Buy SketchPlus
                                            Buy SUbD
                                            Buy WrapR
                                            Buy eBook
                                            Buy Modelur
                                            Buy Vertex Tools
                                            Buy SketchCuisine
                                            Buy FormFonts

                                            Advertisement