cgal problem with two polyhedron but not one

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cgal problem with two polyhedron but not one

ericdavies
I have two polyhedron. Each previews and compiles/cgal's fine by itself, but CGAL fails if I try to do both. I'm running on Linux, openscad version 2015.03-2 . Am I running into CGAL complexity limitations? Is there some other system I can use to render an open scad file?

Thank you.

polyhedron([[12.636,-2.1,0.1],[12.636,-4.1,0.1],[12.636,-3.1,-1.5],[14.110632978369933,-2.03055782127468,0.1],[14.301367021630066,-4.021442178725319,0.1],[14.206,-3.026,-1.5],[15.532832046794901,-1.8244426590018423,0.1],[15.9151679532051,-3.7875573409981578,0.1],[15.724,-2.806,-1.5],[16.897022894781138,-1.4894656764095102,0.1],[17.46697710521886,-3.4065343235904897,0.1],[17.182,-2.448,-1.5],[18.19698203992166,-1.03379405217934,0.1],[18.951017960078342,-2.8862059478206596,0.1],[18.574,-1.96,-1.5],[19.425817003283246,-0.4613116856360152,0.1],[20.358182996716753,-2.230688314363985,0.1],[19.892,-1.346,-1.5],[20.579227558117616,0.22065544823173466,0.1],[21.680772441882382,-1.4486554482317346,0.1],[21.13,-0.614,-1.5],[21.653915176927217,1.0085263136129654,0.1],[22.91408482307278,-0.5445263136129654,0.1],[22.284,0.232,-1.5],[22.640779513589848,1.892971833122147,0.1],[24.047220486410154,0.471028166877853,0.1],[23.344,1.182,-1.5],[23.53596066013343,2.869996406775037,0.1],[25.076039339866572,1.5940035932249634,0.1],[24.306,2.232,-1.5],[24.330829295626863,3.9329954767342565,0.1],[25.989170704373137,2.8150045232657437,0.1],[25.16,3.374,-1.5],[25.021884137207564,5.074758957852428,0.1],[26.782115862792438,4.125241042147572,0.1],[25.902,4.6,-1.5],[25.60328389251503,6.293480200513315,0.1],[27.44871610748497,5.522519799486686,0.1],[26.526,5.908,-1.5],[26.067815007209354,7.580763145839694,0.1],[27.980184992790647,6.995236854160306,0.1],[27.024,7.288,-1.5],[26.409622755881056,8.931130563875179,0.1],[28.370377244118945,8.536869436124821,0.1],[27.39,8.734,-1.5],[26.621069514139553,10.34056504514738,0.1],[28.610930485860447,10.13943495485262,0.1],[27.616,10.24,-1.5],[26.698010020861695,11.804476787126257,0.1],[28.697989979138306,11.795523212873745,0.1],[27.698,11.8,-1.5],[26.634322170916437,13.26712556502758,0.1],[28.62567782908356,13.452874434972419,0.1],[27.63,13.36,-1.5],[26.43223696794507,14.675891218271468,0.1],[28.395763032054933,15.05610878172853,0.1],[27.414,14.866,-1.5],[26.10157064237621,16.02667007439658,0.1],[28.018429357623788,16.59732992560342,0.1],[27.06,16.312,-1.5],[25.648615488437763,17.31297031018571,0.1],[27.49938451156224,18.07102968981429,0.1],[26.574,17.692,-1.5],[25.076995628639185,18.530635237626758,0.1],[26.843004371360816,19.469364762373242,0.1],[25.96,19,-1.5],[24.395906184647835,19.67136509084563,0.1],[26.060093815352168,20.78063490915437,0.1],[25.228,20.226,-1.5],[23.60887221320253,20.733749714007438,0.1],[25.155127786797472,22.00225028599256,0.1],[24.382,21.368,-1.5],[22.723932610550598,21.70985535266013,0.1],[24.1360673894494,23.126144647339867,0.1],[23.43,22.418,-1.5],[21.743533167387763,22.59341255777966,0.1],[23.00846683261224,24.142587442220336,0.1],[22.376,23.368,-1.5],[20.67695453465556,23.380848925307088,0.1],[21.78304546534444,25.04715107469291,0.1],[21.23,24.214,-1.5],[19.53035985798085,24.062081057125535,0.1],[20.46564014201915,25.829918942874468,0.1],[19.998,24.946,-1.5],[18.30602637048272,24.634183638409034,0.1],[19.061973629517283,26.485816361590963,0.1],[18.684,25.56,-1.5],[17.010286621929822,25.089684881893366,0.1],[17.581713378070177,27.00631511810663,0.1],[17.296,26.048,-1.5],[15.650427542505527,25.42452152671109,0.1],[16.033572457494476,27.38747847328891,0.1],[15.842,26.406,-1.5],[14.230539776083404,25.630566754799805,0.1],[14.421460223916597,27.621433245200198,0.1],[14.326,26.626,-1.5],[12.756,25.7,0.1],[12.756,27.7,0.1],[12.756,26.7,-1.5],[11.281367021630066,25.63055782127468,0.1],[11.090632978369934,27.62144217872532,0.1],[11.186,26.626,-1.5],[9.859167953205098,25.42444265900184,0.1],[9.4768320467949,27.387557340998157,0.1],[9.668,26.406,-1.5],[8.495192357834139,25.089529698408445,0.1],[7.924807642165862,27.006470301591552,0.1],[8.21,26.048,-1.5],[7.196957297744979,24.633769361510424,0.1],[6.443042702255021,26.486230638489573,0.1],[6.82,25.56,-1.5],[5.965926358696005,24.061176498802006,0.1],[5.034073641303995,25.830823501197997,0.1],[5.5,24.946,-1.5],[4.812772441882382,23.379344551768263,0.1],[3.7112275581176166,25.048655448231735,0.1],[4.262,24.214,-1.5],[3.738084823072782,22.591473686387033,0.1],[2.477915176927218,24.144526313612964,0.1],[3.108,23.368,-1.5],[2.7515888582861927,21.707392711481557,0.1],[1.3444111417138074,23.12860728851844,0.1],[2.048,22.418,-1.5],[1.8583698827245323,20.730402757384418,0.1],[0.31763011727546775,22.00559724261558,0.1],[1.088,21.368,-1.5],[1.0628370839649983,19.666509974848168,0.1],[-0.5948370839649982,20.78549002515183,0.1],[0.234,20.226,-1.5],[0.37012849037670115,18.52526445211336,0.1],[-1.3901284903767013,19.47473554788664,0.1],[-0.51,19,-1.5],[-0.2090438574118052,17.30709487031384,0.1],[-2.0549561425881944,18.07690512968616,0.1],[-1.132,17.692,-1.5],[-0.6738150072093546,16.019236854160308,0.1],[-2.586184992790645,16.604763145839694,0.1],[-1.63,16.312,-1.5],[-1.0156227558810569,14.66886943612482,0.1],[-2.976377244118943,15.063130563875179,0.1],[-1.996,14.866,-1.5],[-1.227069514139553,13.259434954852619,0.1],[-3.216930485860447,13.460565045147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polyhedron([[11.671390676354104,24.628476690885257,0.1],[10.928609323645897,22.77152330911474,0.1],[11.3,23.7,-1.5],[12.930075201444303,24.076534120644368,0.1],[11.669924798555698,22.523465879355633,0.1],[12.3,23.3,-1.5],[13.614514295677305,23.104553584833756,0.1],[11.785485704322694,22.295446415166243,0.1],[12.7,22.7,-1.5],[13.894028938256819,21.790883228108488,0.1],[11.905971061743182,22.00911677189151,0.1],[12.9,21.9,-1.5],[13.29671556573756,20.49564554497259,0.1],[11.70328443426244,21.704354455027413,0.1],[12.5,21.1,-1.5],[11.945621090066567,19.247829611116693,0.1],[10.566378909933434,20.69617038888331,0.1],[11.256,19.972,-1.5],[9.489988905605538,16.798657858662096,0.1],[8.222011094394462,18.345342141337902,0.1],[8.856,17.572,-1.5],[7.700968613839447,15.607790940146597,0.1],[6.411031386160553,17.136209059853403,0.1],[7.056,16.372,-1.5],[4.5021888228667075,12.239116827010408,0.1],[2.8098111771332923,13.304883172989593,0.1],[3.656,12.772,-1.5],[3.648193609211356,10.047292975979126,0.1],[1.6638063907886442,10.296707024020876,0.1],[2.656,10.172,-1.5],[3.9981129746715283,7.107295605332914,0.1],[2.113887025328472,6.436704394667086,0.1],[3.056,6.772,-1.5],[5.170587916736134,5.271545644868662,0.1],[3.7414120832638664,3.872454355131338,0.1],[4.456,4.572,-1.5],[6.58885654607103,4.314977475731878,0.1],[5.9231434539289705,2.429022524268122,0.1],[6.256,3.372,-1.5],[8.327302387564046,4.163683883378814,0.1],[8.584697612435953,2.180316116621186,0.1],[8.456,3.172,-1.5],[10.172273877535215,4.847219423027839,0.1],[11.139726122464786,3.0967805769721606,0.1],[10.656,3.972,-1.5],[11.69661296764048,6.022639174261895,0.1],[13.21538703235952,4.721360825738104,0.1],[12.456,5.372,-1.5],[12.581842723878461,7.657642931178632,0.1],[14.330157276121538,6.686357068821367,0.1],[13.456,7.172,-1.5]],[[0,1,2],[50,49,48],[0,3,4,1],[1,4,5,2],[2,5,3,0],[3,6,7,4],[4,7,8,5],[5,8,6,3],[6,9,10,7],[7,10,11,8],[8,11,9,6],[9,12,13,10],[10,13,14,11],[11,14,12,9],[12,15,16,13],[13,16,17,14],[14,17,15,12],[15,18,19,16],[16,19,20,17],[17,20,18,15],[18,21,22,19],[19,22,23,20],[20,23,21,18],[21,24,25,22],[22,25,26,23],[23,26,24,21],[24,27,28,25],[25,28,29,26],[26,29,27,24],[27,30,31,28],[28,31,32,29],[29,32,30,27],[30,33,34,31],[31,34,35,32],[32,35,33,30],[33,36,37,34],[34,37,38,35],[35,38,36,33],[36,39,40,37],[37,40,41,38],[38,41,39,36],[39,42,43,40],[40,43,44,41],[41,44,42,39],[42,45,46,43],[43,46,47,44],[44,47,45,42],[45,48,49,46],[46,49,50,47],[47,50,48,45]]);

--
Eric Davies
250 595-0639

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Re: cgal problem with two polyhedron but not one

thehans
I don't have 2015.03-2 installed, but the two shapes render fine for
me using the 2015.03-3 AppImage, can you try that?
https://download.opensuse.org/repositories/home:/t-paul/AppImage/OpenSCAD-Release-latest-x86_64.AppImage

How does CGAL fail for you?  Does it crash?  Does it give an error
message (if so what is the message)?
I do see a warning "PolySet has nonplanar faces. Attempting alternate
construction" but it seems to handle it fine anyways.

Are you combining these two shapes in a particular way or just using
the default implicit union of the two?  I don't think the issue has
any relation to the complexity of parts; they are relatively low poly.

Hans
On Sun, Sep 16, 2018 at 12:05 AM Eric Davies <[hidden email]> wrote:
>
> I have two polyhedron. Each previews and compiles/cgal's fine by itself, but CGAL fails if I try to do both. I'm running on Linux, openscad version 2015.03-2 . Am I running into CGAL complexity limitations? Is there some other system I can use to render an open scad file?
>
> Thank you.
>
>
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>
> --
> Eric Davies
> 250 595-0639
> _______________________________________________
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Re: cgal problem with two polyhedron but not one

nophead
There were some versions of OpenSCAD that give a CGAL exception instead of the alternate construction when CGAL changed the exception it throws.

On 16 September 2018 at 07:13, Hans L <[hidden email]> wrote:
I don't have 2015.03-2 installed, but the two shapes render fine for
me using the 2015.03-3 AppImage, can you try that?
https://download.opensuse.org/repositories/home:/t-paul/AppImage/OpenSCAD-Release-latest-x86_64.AppImage

How does CGAL fail for you?  Does it crash?  Does it give an error
message (if so what is the message)?
I do see a warning "PolySet has nonplanar faces. Attempting alternate
construction" but it seems to handle it fine anyways.

Are you combining these two shapes in a particular way or just using
the default implicit union of the two?  I don't think the issue has
any relation to the complexity of parts; they are relatively low poly.

Hans
On Sun, Sep 16, 2018 at 12:05 AM Eric Davies <[hidden email]> wrote:
>
> I have two polyhedron. Each previews and compiles/cgal's fine by itself, but CGAL fails if I try to do both. I'm running on Linux, openscad version 2015.03-2 . Am I running into CGAL complexity limitations? Is there some other system I can use to render an open scad file?
>
> Thank you.
>
> 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>
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>
> --
> Eric Davies
> 250 595-0639
> _______________________________________________
> OpenSCAD mailing list
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