Ficheiro original(1 100 × 800 píxeis, tamanho: 367 kB, tipo MIME: image/png)

Este ficheiro vem da wiki Wikimedia Commons e pode ser usado por outros projetos. A descrição na página original de descrição do ficheiro é mostrada abaixo.

Descrição do ficheiro

Descrição
Português: Nó 74
English: 74 knot
Data
Origem Obra do próprio
Autor Ederporto

Licenciamento

Eu, titular dos direitos de autor desta obra, publico-a com a seguinte licença:
w:pt:Creative Commons
atribuição partilha nos termos da mesma licença
A utilização deste ficheiro é regulada nos termos da licença Creative Commons Atribuição-CompartilhaIgual 4.0 Internacional.
Pode:
  • partilhar – copiar, distribuir e transmitir a obra
  • recombinar – criar obras derivadas
De acordo com as seguintes condições:
  • atribuição – Tem de fazer a devida atribuição da autoria, fornecer uma hiperligação para a licença e indicar se foram feitas alterações. Pode fazê-lo de qualquer forma razoável, mas não de forma a sugerir que o licenciador o apoia ou subscreve o seu uso da obra.
  • partilha nos termos da mesma licença – Se remisturar, transformar ou ampliar o conteúdo, tem de distribuir as suas contribuições com a mesma licença ou uma licença compatível com a original.

Código-fonte

This image was created using POV-Ray for Windows, version 3.7. The image was rendered to an 1920 x 1080 rectangle, using 0.3 anti-aliasing, and then cropped and compressed into a square using Photoshop. The code bellow was modified from the one at Blue 72 Knot by Jim.belk.

#include "colors.inc"

background { color White }

global_settings { assumed_gamma 1.0}

camera
  {
  location <0, 0, -25>
  right <1,0,0> up <0,1,0>
  look_at  <0, 0, 0>
  angle 5
  }

light_source
  {
  <0, 20, -50>
  color White
  area_light <5, 0, 0>, <0, 5, 0>, 10, 10  /* very slow, decrease 10 to 2 for experiments */
  adaptive 3
  }

#declare r_tube = 0.07;  // thickness (radius) of tube

sphere_sweep
  {
  cubic_spline 110,
  <-0.846662727, -0.189982364, 0.112322182>, r_tube
  <-0.849324727, -0.284050273, 0.059746545>, r_tube
  <-0.822448182, -0.365780545, -0.005013182>, r_tube
  <-0.767159273, -0.427801455, -0.073407636>, r_tube
  <-0.687604636, -0.464353545, -0.135966>, r_tube
  <-0.591028182, -0.472237364, -0.182910364>, r_tube
  <-0.487438273, -0.451913545, -0.205333091>, r_tube
  <-0.388481364, -0.408552727, -0.197014182>, r_tube
  <-0.304549727, -0.351728, -0.156545818>, r_tube
  <-0.241069909, -0.292087636, -0.088996>, r_tube
  <-0.193920727, -0.234495, -0.005960273>, r_tube
  <-0.147334636, -0.173318818, 0.075334909>, r_tube
  <-0.086260909, -0.101366455, 0.134616909>, r_tube
  <-0.011979182, -0.020864818, 0.155094273>, r_tube
  <0.061509, 0.059406545, 0.130700636>, r_tube
  <0.120432636, 0.130565455, 0.068244636>, r_tube
  <0.162308909, 0.189540273, -0.016710909>, r_tube
  <0.199244909, 0.243907727, -0.106555364>, r_tube
  <0.248032273, 0.303880818, -0.185393273>, r_tube
  <0.316452273, 0.370048273, -0.239837455>, r_tube
  <0.402150182, 0.434014545, -0.261210727>, r_tube
  <0.497139545, 0.484952, -0.247388545>, r_tube
  <0.591207545, 0.514055455, -0.202005545>, r_tube
  <0.674473545, 0.516256818, -0.132766455>, r_tube
  <0.738644636, 0.490301818, -0.049500273>, r_tube
  <0.777833182, 0.438263545, 0.036991>, r_tube
  <0.788865455, 0.364903364, 0.115931273>, r_tube
  <0.771562, 0.277157818, 0.177184273>, r_tube
  <0.729148273, 0.183448273, 0.212021455>, r_tube
  <0.668688818, 0.092912636, 0.214197182>, r_tube
  <0.600678273, 0.013511636, 0.181714909>, r_tube
  <0.537428727, -0.051324909, 0.118311818>, r_tube
  <0.488334273, -0.106690545, 0.033765818>, r_tube
  <0.453702, -0.165998182, -0.056795364>, r_tube
  <0.422115545, -0.240305455, -0.135735636>, r_tube
  <0.379881, -0.328230182, -0.189104818>, r_tube
  <0.322211636, -0.419226545, -0.210222091>, r_tube
  <0.251974182, -0.501648, -0.199445909>, r_tube
  <0.174441727, -0.567278, -0.162381818>, r_tube
  <0.093658455, -0.611944273, -0.106939364>, r_tube
  <0.011365, -0.634213364, -0.041616545>, r_tube
  <-0.072361818, -0.633855, 0.025472545>, r_tube
  <-0.157726909, -0.610869182, 0.086520727>, r_tube
  <-0.243424727, -0.565588636, 0.133567455>, r_tube
  <-0.325718273, -0.500086636, 0.158959455>, r_tube
  <-0.398873636, -0.419431364, 0.156502182>, r_tube
  <-0.457515727, -0.332453636, 0.123533545>, r_tube
  <-0.501183727, -0.249904273, 0.063099727>, r_tube
  <-0.538324636, -0.178489364, -0.015200636>, r_tube
  <-0.580943091, -0.114651182, -0.096495909>, r_tube
  <-0.633749182, -0.047024636, -0.165939818>, r_tube
  <-0.691981727, 0.032837091, -0.212449>, r_tube
  <-0.746272364, 0.125343727, -0.229778>, r_tube
  <-0.787227091, 0.224735727, -0.216493273>, r_tube
  <-0.807576545, 0.322694364, -0.175461727>, r_tube
  <-0.803045909, 0.410414364, -0.112570636>, r_tube
  <-0.772329818, 0.479909545, -0.035934>, r_tube
  <-0.716912909, 0.524831727, 0.045028364>, r_tube
  <-0.640967455, 0.541008818, 0.119924364>, r_tube
  <-0.551250909, 0.527340273, 0.178412909>, r_tube
  <-0.456645455, 0.486462182, 0.211099909>, r_tube
  <-0.367159364, 0.425209273, 0.211432727>, r_tube
  <-0.291930545, 0.353999182, 0.177747364>, r_tube
  <-0.236155273, 0.283633818, 0.114805091>, r_tube
  <-0.196992273, 0.219411636, 0.033689091>, r_tube
  <-0.160491364, 0.155803818, -0.050012182>, r_tube
  <-0.110296273, 0.083237091, -0.117792364>, r_tube
  <-0.043156, 0.000994818, -0.151810364>, r_tube
  <0.029564273, -0.083295182, -0.141955636>, r_tube
  <0.093146455, -0.160597273, -0.091862818>, r_tube
  <0.145798909, -0.227302364, -0.018144273>, r_tube
  <0.20311, -0.288120182, 0.056674909>, r_tube
  <0.279465091, -0.345584818, 0.113115636>, r_tube
  <0.375452727, -0.392196364, 0.139864273>, r_tube
  <0.481883909, -0.416743636, 0.134284182>, r_tube
  <0.585525091, -0.411624273, 0.100906091>, r_tube
  <0.673654455, -0.374816273, 0.048560727>, r_tube
  <0.736264091, -0.309467818, -0.011949909>, r_tube
  <0.767312909, -0.222387727, -0.069619273>, r_tube
  <0.764855727, -0.122790909, -0.114132>, r_tube
  <0.731579909, -0.021095182, -0.136785091>, r_tube
  <0.675113636, 0.072998364, -0.131870545>, r_tube
  <0.607384636, 0.154088818, -0.098543636>, r_tube
  <0.540551636, 0.225734091, -0.043408273>, r_tube
  <0.479221909, 0.298582273, 0.018100636>, r_tube
  <0.416535455, 0.377522636, 0.066964818>, r_tube
  <0.34402, 0.456616455, 0.090948909>, r_tube
  <0.260753909, 0.526111545, 0.087263>, r_tube
  <0.170704545, 0.578252091, 0.059797727>, r_tube
  <0.077890909, 0.608916909, 0.015976091>, r_tube
  <-0.015460364, 0.616596, -0.035396455>, r_tube
  <-0.108709273, 0.601161091, -0.085258909>, r_tube
  <-0.200985364, 0.563508364, -0.124549909>, r_tube
  <-0.289806, 0.506094909, -0.144668909>, r_tube
  <-0.370998818, 0.434296091, -0.138832818>, r_tube
  <-0.440929091, 0.356738091, -0.104507636>, r_tube
  <-0.501234909, 0.283147545, -0.046095909>, r_tube
  <-0.560465727, 0.218157364, 0.023731909>, r_tube
  <-0.626121364, 0.155957364, 0.088133273>, r_tube
  <-0.696742727, 0.085745545, 0.133721>, r_tube
  <-0.763627, 0.002377, 0.153353727>, r_tube
  <-0.816381818, -0.091742091, 0.145341909>, r_tube
  <-0.846662727, -0.189982364, 0.112322182>, r_tube
  <-0.849324727, -0.284050273, 0.059746545>, r_tube
  <-0.822448182, -0.365780545, -0.005013182>, r_tube
  <-0.767159273, -0.427801455, -0.073407636>, r_tube
  <-0.687604636, -0.464353545, -0.135966>, r_tube
  <-0.591028182, -0.472237364, -0.182910364>, r_tube
  <-0.487438273, -0.451913545, -0.205333091>, r_tube
  <-0.388481364, -0.408552727, -0.197014182>, r_tube
  pigment { color rgb <0,0.25,1> }
  finish          
    {
    ambient 0.15
    diffuse 0.85
    brilliance 2
    phong 0.25
    phong_size 7.5
    }
  }

plane
  {
  <0,0,-1>, -0.33
  pigment { color White }
  finish
    {
    ambient 0.35
    diffuse 0.65
    }
  }

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atual17h40min de 7 de fevereiro de 2017Miniatura da versão das 17h40min de 7 de fevereiro de 20171 100 × 800 (367 kB)EderportoUser created page with UploadWizard

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