Image:Conicas1.PNG

I, the copyright holder of this work, have published or hereby publish it under the following license: Permission is granted to copy, distribute and/or modify this document under the terms of the GNU Free Documentation license, Version 1.2 or any later version published by the Free Software Foundation; with no Invariant Sections, no Front-Cover Texts, and no Back-Cover Texts. A copy of the license is included in the section entitled " GNU Free Documentation license". Aragonés | العربية | Asturianu | Беларуская (тарашкевіца) | Български | বাংলা | ইমার ঠার/বিষ্ণুপ্রিয়া মণিপুরী | Brezhoneg | Bosanski | Català | Cebuano | Česky | Dansk | Deutsch | Ελληνικά | English | Esperanto | Español | Eesti | Euskara | فارسی | Suomi | Français | Gaeilge | Galego | עברית | Hrvatski | Magyar | Bahasa Indonesia | Ido | Íslenska | Italiano | 日本語 | ქართული | ភាសាខ្មែរ | 한국어 | Kurdî / كوردی | Latina | Lëtzebuergesch | Lietuvių | Bahasa Melayu | Nnapulitano | Nederlands | ‪Norsk (nynorsk)‬ | ‪Norsk (bokmål)‬ | Occitan | Polski | Português | Română | Русский | Slovenčina | Slovenščina | Shqip | Српски / Srpski | Svenska | తెలుగు | ไทย | Tagalog | Türkçe | Українська | اردو | Tiếng Việt | Volapük | Yorùbá | ‪中文(简体)‬ | ‪中文(繁體)‬ | +/-

Source: A quem interessar, o código para geração das três imagens relativas ao artigo é o seguinte (deve ser renderizado pelo Polyray, de Alexander Enzman).

viewpoint
{
        from <-30,18,47>
        at <0,6,-1>
        angle 26
        resolution 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>,0

        texture
        {
                surface
                {
                        color <0.6,0.6,0.6>
                        transmission .7,1
                        ambient .7
                        diffuse .4
                        brilliance .6
                }
        }
}

// Elipse
define 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 .4
                        diffuse .2
                }
        }
}

//Parábola - observar que o ângulo do triângulo que gera o cone
// foi arredondado para 74 graus
define 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 .4
                        diffuse .2
                }
        }
}

//Hipérbole
define hiperb1 object
{
        object { box <-80,1,-80>,<80,1.1,80> rotate <0,0,90> translate <-2,0,0> }
        * object { conecon }

        texture
        {
                surface
                {
                        colour <0.5,0.8,0.5>
                        ambient .4
                        diffuse .2
                }
        }
}


// Insira aqui os objectos que vão compor a cena.