• Login
sketchucation logo sketchucation
  • Login
πŸ”Œ Quick Selection | Try Didier Bur's reworked classic extension that supercharges selections in SketchUp Download

Terrain Modeling Question

Scheduled Pinned Locked Moved SketchUp Discussions
sketchup
23 Posts 8 Posters 2.0k Views 8 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.
  • A Offline
    andymaw
    last edited by 4 Dec 2008, 12:29

    Hi all,

    Is there a way to remove a central part of a terrain leaving a gap? In CAD, hatching is done with 'islands' so was wondering if there is an equivalent in SU.

    Cheers

    1 Reply Last reply Reply Quote 0
    • G Offline
      Gaieus
      last edited by 4 Dec 2008, 12:38

      You can always do this by drawing the shape of this "island" on a flat face, then push/pull it up so that it intersects the terrain where you want it - just like a cookie cutter - then make sure you are in the context of the terrain (they are generally groups so edit the group), double click on the terrain surface (or triple click if it is not a single mesh), right click > Intersect > ...with model.

      Now you can select the surface of your island and simply delete it.

      Exiting the group, simply delete your cookie cutter.

      Gai...

      1 Reply Last reply Reply Quote 0
      • A Offline
        andymaw
        last edited by 4 Dec 2008, 13:13

        Magic, that worked a treat. Thank you

        1 Reply Last reply Reply Quote 0
        • G Offline
          Gaieus
          last edited by 4 Dec 2008, 13:26

          Glad I got it through - I was wondering if I could make myself clear enough (I actually often wonder about this 😲 )

          Gai...

          1 Reply Last reply Reply Quote 0
          • P Offline
            plot-paris
            last edited by 4 Dec 2008, 14:07

            clear as my tea, Gaieus (...they drink it with a lot of milk here in England) 🀣
            just kidding...

            another way is to use the drape tool: position the flat face of your island over the terrain, and select it. then press the 'drape' button of the sandbox tools and click on the terrain. the outline will now be drawn onto the terrain.
            is pretty much, what Gaieus' method does - only that you are not in danger of accidentally intersecting your terrain with geometry other than the island footprint (but make sure to save before using the drape tool, a bug splat may be the only result you get)

            1 Reply Last reply Reply Quote 0
            • G Offline
              Gaieus
              last edited by 4 Dec 2008, 14:10

              Yup - how it didn't come to my mind! Sure; the drape tool! In fact it is just designed to do such operations without my cumbersome workaround!

              (well, I got up at about 4:30 am and still working past 3 pm) 😞

              Gai...

              1 Reply Last reply Reply Quote 0
              • P Offline
                plot-paris
                last edited by 4 Dec 2008, 14:14

                ...and still replying within 3 minutes. do you have some little notifier tool running, that pops up, when a new post has been placed in a thread you are active in? if yes, where can I get it? if no, how do you do it (being so fast)?

                by the way: such an application would be fantastic to be included in SketchUp. thus I could post all day without my boss noticing, that I am not actually modeling πŸ˜„
                didn't we have a discussion about it some time ago?

                1 Reply Last reply Reply Quote 0
                • G Offline
                  Gaieus
                  last edited by 4 Dec 2008, 14:26

                  @plot-paris said:

                  ...do you have some little notifier tool running, that pops up, when a new post has been placed...?

                  Sure, this is it:
                  http://www.sketchucation.com/forums/scf/styles/prosilver/imageset/forum_unread.gif
                  (I mean the little pencil.
                  And this is my screenshot (after this post I'll have to check out the gallery πŸ˜„ )


                  ScreenShot.jpg

                  Gai...

                  1 Reply Last reply Reply Quote 0
                  • P Offline
                    plot-paris
                    last edited by 4 Dec 2008, 16:48

                    ah, I see. but you don't have a little program that makes an annoying noise as soon as something is posted (you know, like some sort of instant messenger).

                    1 Reply Last reply Reply Quote 0
                    • G Offline
                      Gaieus
                      last edited by 4 Dec 2008, 19:17

                      No. I keep an EYE on... πŸ‘Š
                      (the other one is under surgery anyway...) 😞

                      Gai...

                      1 Reply Last reply Reply Quote 0
                      • P Offline
                        plot-paris
                        last edited by 5 Dec 2008, 09:30

                        oh, that doesn't sound too well. did a piece of metal fly from your hammer while excavating a roman church? hope everything will be fine πŸ‘ (I find it really hard to read subtitles in movies with only one eye).
                        if your eye should happen to get inhumanly red (like it happens quite often after a surgery), could you take a photo and post it? πŸ˜‰

                        andymaw, sorry for jacking your thread. and Gaieus, tell me if I was out of order; I am not very sensitive in these things. had a long row with my flatmate the other day, because I told her she would drop dead half way through her marathon if she kept on smoking.

                        1 Reply Last reply Reply Quote 0
                        • G Offline
                          Gaieus
                          last edited by 5 Dec 2008, 09:58

                          Haha. I wouldn't even think of a 100 metre run with my almost 30 years of smoking habit! 😞

                          Anyway, I have a cataract in my right eye (used to have one in the left as well but that was operated some 2.5 years ago already). Now it's about high time for the right eye as well. πŸ‘Š

                          Gai...

                          1 Reply Last reply Reply Quote 0
                          • EdsonE Offline
                            Edson
                            last edited by 5 Dec 2008, 10:36

                            jakob and csaba,

                            i still prefer the intersect way over the drape tool as it is not always reliable. and jakob, do not you get notifications by email about the topics you subscribe to?

                            edson mahfuz, architect| porto alegre β€’ brasil
                            http://www.mahfuz.arq.br

                            1 Reply Last reply Reply Quote 0
                            • G Offline
                              Gaieus
                              last edited by 5 Dec 2008, 10:56

                              True that the drape tool in not always reliable although often it is not because the imported dxf linework does not close properly (i.e. you couldn't create a simple face with it either).

                              Also, as I experienced, the drape tool ha been greatly enhanced in SU 7 - and it is also faster than before.

                              Gai...

                              1 Reply Last reply Reply Quote 0
                              • T Offline
                                timdaviespimlico
                                last edited by 6 Dec 2008, 10:44

                                Hi Gaieus,
                                I only just joined the community and have been reading your thread about the scripts etc to convert spot points from autocad accross to sketchup - i'm not a coder but i have worked with computers for 20 years so i'm hoping i'm not stupid but i've tried all the links and have not been able to get it to work - could you point me in the right direction!! - i've got about 2-300 points in an autocad file from an architect each point has a cross and a 6digit decimal (ie 100.040 ) .

                                any advice much appreciated!

                                cheers

                                tim davies

                                'Rome wasn't built in a day, but they didn't have sketchup!'

                                1 Reply Last reply Reply Quote 0
                                • G Offline
                                  Gaieus
                                  last edited by 6 Dec 2008, 10:58

                                  Hi Tim and welcome!

                                  Are those "crosses" components when imported to SU? The best would be if they were instances of the same component (as I remember a topic with such a case).

                                  What do the digits stand for? Elevation maybe?

                                  Gai...

                                  1 Reply Last reply Reply Quote 0
                                  • T Offline
                                    timdaviespimlico
                                    last edited by 6 Dec 2008, 19:28

                                    Hi Gaieus, Thank you for your time in getting back to me.
                                    i've attached a screenshot showing the number data with the cross (x) as it appears in Autocad and then in su7 how the points come in without the numbers and just the x which have 6 edges and also a length!

                                    thanks again for your time .

                                    shows data in cad

                                    'Rome wasn't built in a day, but they didn't have sketchup!'


                                    shows su7 conversion with 6 edges and length

                                    'Rome wasn't built in a day, but they didn't have sketchup!'

                                    1 Reply Last reply Reply Quote 0
                                    • AnssiA Offline
                                      Anssi
                                      last edited by 6 Dec 2008, 21:48

                                      SU does not import CAD Text objects, but if those "crosses" are at the right elevations, you can use the Sandbox from Contours tool to fit a terrain surface onto them. It may not be the most beautiful one, but it might work.

                                      Anssi

                                      securi adversus homines, securi adversus deos rem difficillimam adsecuti sunt, ut illis ne voto quidem opus esset

                                      1 Reply Last reply Reply Quote 0
                                      • T Offline
                                        timdaviespimlico
                                        last edited by 6 Dec 2008, 23:58

                                        thanks guys for your advice - i just checked and the elevation data isn't there - all the crosses have the same value in entity info and are the same plane! i'm going to try and fudge it!

                                        'Rome wasn't built in a day, but they didn't have sketchup!'

                                        1 Reply Last reply Reply Quote 0
                                        • K Offline
                                          Kenny
                                          last edited by 7 Dec 2008, 13:20

                                          Tim, it looks like the survey you have is in 2D only. Go back to the architect who could ask the surveyor if he has done the survey with 3d points. I've had a few situations where the 3D information is collected in the survey but you have to request it in 3D format otherwise it is sent out in 2d only.

                                          Failing that, the numbers you have are spot heights which can be converted to 3D. See this thread: http://www.sketchucation.com/forums/scf/viewtopic.php?f=15&t=14409&st=0&sk=t&sd=a&hilit=cloud

                                          I couldn't get it to work at first but email the developer who is very helpful if you have a problem.

                                          Kenny

                                          http://www.townscapesolutions.co.uk/

                                          1 Reply Last reply Reply Quote 0
                                          • 1
                                          • 2
                                          • 1 / 2
                                          1 / 2
                                          • First post
                                            1/23
                                            Last post
                                          Buy SketchPlus
                                          Buy SUbD
                                          Buy WrapR
                                          Buy eBook
                                          Buy Modelur
                                          Buy Vertex Tools
                                          Buy SketchCuisine
                                          Buy FormFonts

                                          Advertisement