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

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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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                                        • fredo6F Offline
                                          fredo6
                                          last edited by

                                          @krisidious said:

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

                                          I imported the dwg file and found that most contours were interrupted in their middle. This is a problem for TopoShaper currently, at it allows topological communication between contours.

                                          Krisidious Hanna Topo 2.png

                                          I just closed the missing links, and here is the result
                                          Krisidious Hanna Topo.skp
                                          Krisidious Hanna Topo.png

                                          Thanks again for this testing model

                                          Fredo

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                                          • KrisidiousK Offline
                                            Krisidious
                                            last edited by

                                            Yes, Fredo... No problem. That's where the road runs in the property. I just thought you'd like to get samples directly from surveyors. no touch ups. Looks great. can't wait to buy/download this plugin.

                                            Edit... actually that is not the road. it's where the grade heights are typed in as text.

                                            topo.JPG

                                            By: Kristoff Rand
                                            Home DesignerUnique House Plans

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