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    Terrain from contours - improve on native 'from contours'?

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    • pilouP Offline
      pilou
      last edited by

      @unknownuser said:

      I prefer SU as I am not familiar with CAD and Archi software

      Except one! SU Itself πŸ˜‰

      Frenchy Pilou
      Is beautiful that please without concept!
      My Little site :)

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      • utilerU Offline
        utiler
        last edited by

        Here's a few contour Skippy's, Fredo.

        Survey01 - contours or a regular residential site of about 800sqm with a 15m fall. Contours at 250mm....

        survey01.skp

        Survey02 - contours over a commercial development site of about 2800sqm. Contours at 200mm increments with minimum grad.

        survey02.skp

        purpose/expression/purpose/....

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        • fredo6F Offline
          fredo6
          last edited by

          Andrew

          First of all, thanks very much for posting these 2 samples. They are extremely useful for fine tuning the algorithms.

          I have problem about the calculation of the concave hull for the first one, but here is the second one, in 2 flavors:

          • the original altitude (which are very flattish)
          • the exaggerated altitudes which help me to better check the calculations

          utiler_survey02.skp

          Utiler Survey02 by TopoShaper.png

          Utiler Survey02 by TopoShaper max.png

          Fredo

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          • KrisidiousK Offline
            Krisidious
            last edited by

            subscribed... 😲

            By: Kristoff Rand
            Home DesignerUnique House Plans

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            • utilerU Offline
              utiler
              last edited by

              No problem, Fredo, I'm not surprised at issues with the first one as it was a survey of a site with an existing residence on it which prevented a uniform data to be taken...

              What you've done with the other one looks good! Can't wait to see how this plugin ends up. I'll see if I can dig out some other survey plans off file and convert them for you.

              πŸ‘

              purpose/expression/purpose/....

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              • fredo6F Offline
                fredo6
                last edited by

                @utiler said:

                No problem, Fredo, I'm not surprised at issues with the first one as it was a survey of a site with an existing residence on it which prevented a uniform data to be taken...

                I evolved the algorithm for calculating the concave hull on your complex model and could obtain a result on your model, without any change, here attached.

                A lot of the problem come from the small terminations hooks in several contours, like illustrated on the picture below
                TopoShaper small hooks.png

                The issue with terrain construction is that you need to have a correct hull in order to determine the spatial distribution of the influence of the contours.

                utiler_survey01.skp

                TopoShaper Utiler Survey 01.png

                TopoShaper Utiler Survey 1.gif

                Fredo

                PS: I hope to finish a first version in 2-3 weeks time, as I have actually very few moment available currently

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                • EarthMoverE Offline
                  EarthMover
                  last edited by

                  Can't wait! Thanks Fredo!

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

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                  • utilerU Offline
                    utiler
                    last edited by

                    that is looking very sweet, Fredo!!!! Can't wait as well!!!

                    purpose/expression/purpose/....

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                    • KrisidiousK Offline
                      Krisidious
                      last edited by

                      here's a topo I just got from a survey company... if you need tests.


                      HANNA-TOPO.dwg

                      By: Kristoff Rand
                      Home DesignerUnique House Plans

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                      • EarthMoverE Offline
                        EarthMover
                        last edited by

                        Here's another set of contour lines from my current project. All welded up.


                        Coleman Topo.skp

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

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                        • pbacotP Offline
                          pbacot
                          last edited by

                          I've gone ahead and started using one of the tests you made of my contour set, Fredo. I don't have a lot to do as yet but it was really clean leveling some areas and "filling" others with Artisan. Maybe we can illustrate the cut and fill on the project with before and AFTER terrains. Thanks!

                          MacOSX MojaveSketchUp Pro v19 Twilight v2 Thea v3 PowerCADD

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                          • fredo6F Offline
                            fredo6
                            last edited by

                            @earthmover said:

                            Here's another set of contour lines from my current project. All welded up.

                            Adam,

                            Here is what I obtain on the original file. I think however that the contour should be simplified a little bit because there are a lot of edges and it slows down the calculation.

                            Earthmover Coleman Topo.skp

                            Toposhaper Earthmover Coleman Topo.png

                            Fredo

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                            • EarthMoverE Offline
                              EarthMover
                              last edited by

                              A quick play with the contours. Simplified the curves using Thom's Edge Tools. Then did a From Contours terrain. Then a Drape Cpoints / Triangulate method to retopo. Then opened the high res contour lines in 3ds Max and used the free Populate Terrain plugin to generate a similar terrain. Then brought it back into sketchup and compared the two.


                              Earthmover Coleman Topo (1).skp

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

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                              • D Offline
                                dtrarch
                                last edited by

                                Terragen2 download πŸ‘
                                http://planetside.co.uk/index.php?option=com_content&view=article&id=30&Itemid=170
                                Someone here was looking for this and here tiz β˜€

                                dtr

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                                • fredo6F Offline
                                  fredo6
                                  last edited by

                                  By the way, did anyone try SimuTerra? (see this post)

                                  Fredo

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                                  • Chris FullmerC Offline
                                    Chris Fullmer
                                    last edited by

                                    Does anyone know if Erez is still maintaining his Simuterra program? We haven't seen him around in ages!

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

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                                    • soloS Offline
                                      solo
                                      last edited by

                                      Nice clean results.

                                      I have a set of contours that I'd like to compare if you have the time, I used sandbox and got a mess, wondering if this will give a better result. Here is the skp, however I'm wondering if the dwg would not be better.


                                      test contours.skp

                                      http://www.solos-art.com

                                      If you see a toilet in your dreams do not use it.

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                                      • fredo6F Offline
                                        fredo6
                                        last edited by

                                        @solo said:

                                        Nice clean results.

                                        I have a set of contours that I'd like to compare if you have the time, I used sandbox and got a mess, wondering if this will give a better result. Here is the skp, however I'm wondering if the dwg would not be better.

                                        Here is the result on your model without any change, with the current version of TopoShaper. Grid definition is 60 x 27. I did some tests with a higher definition but cannot post it back because the size of the skp file is bigger than 4 Mb.

                                        Note that your contours add up to more than 44,000 edges, with a quite complex concave hull. So it takes a minute to calculate it and there are still some problems on the borders.

                                        Solo test contours.skp

                                        Solo Test Topo.png

                                        Fredo

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                                        • soloS Offline
                                          solo
                                          last edited by

                                          That's very clean, wow, this is awesome.

                                          http://www.solos-art.com

                                          If you see a toilet in your dreams do not use it.

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                                          • pbacotP Offline
                                            pbacot
                                            last edited by

                                            Adam,

                                            Very cool working out the c-points method. I didn't realize those capabilities existed.

                                            Fredo,

                                            Thanks for interface video. Looking great! What you do to program this is so far beyond my ken....

                                            Peter

                                            MacOSX MojaveSketchUp Pro v19 Twilight v2 Thea v3 PowerCADD

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