概要
Source:A quem interessar, o código para geração das três imagens relativas ao artigo pt:Cónicas é o seguinte (deve ser renderizado pelo Polyray, de Alexander Enzman).
viewpoint{from <-30,18,47>at <0,6,-1>angle 26resolution 300,300}background <1,1,1>light white,<0,10,-5>spot_light white,<-70,20,0>,<-20,10,0>,64,46,40// Cone semi-transparente que serve de base para ilustrar as secções.define conecon object{cone <0,0,0>,9, <0,16,0>,0texture{surface{color <0.6,0.6,0.6>transmission .7,1ambient .7diffuse .4brilliance .6}}}// Elipsedefine elips1 object{object { box <-80,1,-80>,<80,1.1,80> translate <0,4,0> rotate <20,0,0> }* object { conecon }texture{surface{color <0.5,0.8,0.5>ambient .4diffuse .2}}}//Parábola - observar que o ângulo do triângulo que gera o cone// foi arredondado para 74 grausdefine parabol1 object{object { box <-80,1,-80>,<80,1.1,80> rotate <0,0,74> translate <1,0,0> }* object { conecon }texture{surface{color <0.5,0.8,0.5>ambient .4diffuse .2}}}//Hipérboledefine hiperb1 object{object { box <-80,1,-80>,<80,1.1,80> rotate <0,0,90> translate <-2,0,0> }* object { conecon }texture{surface{color <0.5,0.8,0.5>ambient .4diffuse .2}}}// Insira aqui os objectos que vão compor a cena.