File:Twisted cubic curve.png

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Twisted_cubic_curve.png ‎(541 × 536 pixels, file size: 145 KB, MIME type: image/png)

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Summary

Description Twisted cubic with xy and xz surfaces in the interval [-1,1]
Date
Source Own work
Author Claudio Rocchini
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Source code (POVRAY)


#include "colors.inc"
#include "metals.inc"

global_settings {max_trace_level 5}

camera {
    perspective
    location <-2100,2400,2205>
    look_at  <0,0,0>
    right x
    up    y
  }

sky_sphere {
    pigment {
        color rgb<1,1,1>
    }
} 

light_source {<-3000,2800,2300>   color White }
light_source {< 2000,-10000,2300> color Gray45 }

#declare R1 = 5;

sphere_sweep {   
  linear_spline
  2,
  <-1000,-1000,-1000>,R1
  < 1000,-1000,-1000>,R1 
  pigment {rgb 0}
  no_shadow
}
sphere_sweep {   
  linear_spline
  2,
  <-1000, 1000,-1000>,R1
  < 1000, 1000,-1000>,R1 
  pigment {rgb 0}
  no_shadow
}
sphere_sweep {   
  linear_spline
  2,
  <-1000, 1000, 1000>,R1
  < 1000, 1000, 1000>,R1 
  pigment {rgb 0}
  no_shadow
}
sphere_sweep {   
  linear_spline
  2,
  <-1000,-1000, 1000>,R1
  < 1000,-1000, 1000>,R1 
  pigment {rgb 0}
  no_shadow
} 
sphere_sweep {   
  linear_spline
  2,
  <-1000,-1000,-1000>,R1
  <-1000, 1000,-1000>,R1 
  pigment {rgb 0}
  no_shadow
}
sphere_sweep {   
  linear_spline
  2,
  < 1000,-1000,-1000>,R1
  < 1000, 1000,-1000>,R1 
  pigment {rgb 0}
  no_shadow
}
sphere_sweep {   
  linear_spline
  2,
  < 1000,-1000, 1000>,R1
  < 1000, 1000, 1000>,R1 
  pigment {rgb 0}
  no_shadow
}
sphere_sweep {   
  linear_spline
  2,
  <-1000,-1000, 1000>,R1
  <-1000, 1000, 1000>,R1 
  pigment {rgb 0}
  no_shadow
}
sphere_sweep {   
  linear_spline
  2,
  <-1000,-1000,-1000>,R1
  <-1000,-1000, 1000>,R1 
  pigment {rgb 0}
  no_shadow
}
sphere_sweep {   
  linear_spline
  2,
  < 1000,-1000,-1000>,R1
  < 1000,-1000, 1000>,R1 
  pigment {rgb 0}
  no_shadow
}
sphere_sweep {   
  linear_spline
  2,
  < 1000, 1000,-1000>,R1
  < 1000, 1000, 1000>,R1 
  pigment {rgb 0}
  no_shadow
}
sphere_sweep {   
  linear_spline
  2,
  <-1000, 1000,-1000>,R1
  <-1000, 1000, 1000>,R1 
  pigment {rgb 0}
  no_shadow
}

parametric {
            function{v*1000}              
            function{u*1000}
            function{u*u*1000}
            <-1,-1>,<1,1>
            contained_by{box{<-1000,-1000,-1000>,<1000,1000,1000>}}
            accuracy 0.00001
            precompute 20,x,y,z
            texture {  pigment { color rgbt<0.10, 0.25, 0.85, 0.76> }  }
            no_shadow
         }
         
parametric {
            function{u*u*u*1000}              
            function{u*1000}
            function{v*1000}
            <-1,-1>,<1,1>
            contained_by{box{<-1000,-1000,-1000>,<1000,1000,1000>}}
            accuracy 0.00001
            precompute 20,x,y,z
            texture {  pigment { color rgbt<0.85, 0.25, 0.10, 0.76> }  }
            no_shadow            
         }
 
sphere_sweep{
linear_spline
32,
<-1000,-1000,-1000>,5,
<-818.67,-935.484,-1000>,5,
<-660.703,-870.968,-1000>,5,
<-524.487,-806.452,-1000>,5,
<-408.412,-741.935,-1000>,5,
<-310.866,-677.419,-1000>,5,
<-230.237,-612.903,-1000>,5,
<-164.916,-548.387,-1000>,5,
<-113.289,-483.871,-1000>,5,
<-73.7471,-419.355,-1000>,5,
<-44.6779,-354.839,-1000>,5,
<-24.4705,-290.323,-1000>,5,
<-11.5135,-225.806,-1000>,5,
<-4.1959,-161.29,-1000>,5,
<-0.906314,-96.7742,-1000>,5,
<-0.0335672,-32.2581,-1000>,5,
<0.0335672,32.2581,-1000>,5,
<0.906314,96.7742,-1000>,5,
<4.1959,161.29,-1000>,5,
<11.5135,225.806,-1000>,5,
<24.4705,290.323,-1000>,5,
<44.6779,354.839,-1000>,5,
<73.7471,419.355,-1000>,5,
<113.289,483.871,-1000>,5,
<164.916,548.387,-1000>,5,
<230.237,612.903,-1000>,5,
<310.866,677.419,-1000>,5,
<408.412,741.935,-1000>,5,
<524.487,806.452,-1000>,5,
<660.703,870.968,-1000>,5,
<818.67,935.484,-1000>,5,
<1000,1000,-1000>,5 
pigment {rgb <0.4,0.4,0.4>}
no_shadow
}
sphere_sweep{
linear_spline
32,
<-1000,-1000,1000>,5,
<-818.67,-935.484,1000>,5,
<-660.703,-870.968,1000>,5,
<-524.487,-806.452,1000>,5,
<-408.412,-741.935,1000>,5,
<-310.866,-677.419,1000>,5,
<-230.237,-612.903,1000>,5,
<-164.916,-548.387,1000>,5,
<-113.289,-483.871,1000>,5,
<-73.7471,-419.355,1000>,5,
<-44.6779,-354.839,1000>,5,
<-24.4705,-290.323,1000>,5,
<-11.5135,-225.806,1000>,5,
<-4.1959,-161.29,1000>,5,
<-0.906314,-96.7742,1000>,5,
<-0.0335672,-32.2581,1000>,5,
<0.0335672,32.2581,1000>,5,
<0.906314,96.7742,1000>,5,
<4.1959,161.29,1000>,5,
<11.5135,225.806,1000>,5,
<24.4705,290.323,1000>,5,
<44.6779,354.839,1000>,5,
<73.7471,419.355,1000>,5,
<113.289,483.871,1000>,5,
<164.916,548.387,1000>,5,
<230.237,612.903,1000>,5,
<310.866,677.419,1000>,5,
<408.412,741.935,1000>,5,
<524.487,806.452,1000>,5,
<660.703,870.968,1000>,5,
<818.67,935.484,1000>,5,
<1000,1000,1000>,5 
pigment {rgb <0.4,0.4,0.4>}
no_shadow
}
sphere_sweep{
linear_spline
32,
<-1000,-1000,1000>,5,
<-1000,-935.484,875.13>,5,
<-1000,-870.968,758.585>,5,
<-1000,-806.452,650.364>,5,
<-1000,-741.935,550.468>,5,
<-1000,-677.419,458.897>,5,
<-1000,-612.903,375.65>,5,
<-1000,-548.387,300.728>,5,
<-1000,-483.871,234.131>,5,
<-1000,-419.355,175.858>,5,
<-1000,-354.839,125.911>,5,
<-1000,-290.323,84.2872>,5,
<-1000,-225.806,50.9886>,5,
<-1000,-161.29,26.0146>,5,
<-1000,-96.7742,9.36524>,5,
<-1000,-32.2581,1.04058>,5,
<-1000,32.2581,1.04058>,5,
<-1000,96.7742,9.36524>,5,
<-1000,161.29,26.0146>,5,
<-1000,225.806,50.9886>,5,
<-1000,290.323,84.2872>,5,
<-1000,354.839,125.911>,5,
<-1000,419.355,175.858>,5,
<-1000,483.871,234.131>,5,
<-1000,548.387,300.728>,5,
<-1000,612.903,375.65>,5,
<-1000,677.419,458.897>,5,
<-1000,741.935,550.468>,5,
<-1000,806.452,650.364>,5,
<-1000,870.968,758.585>,5,
<-1000,935.484,875.13>,5,
<-1000,1000,1000>,5 
pigment {rgb <0.4,0.4,0.4>}
no_shadow
}
sphere_sweep{
linear_spline
32,
<1000,-1000,1000>,5,
<1000,-935.484,875.13>,5,
<1000,-870.968,758.585>,5,
<1000,-806.452,650.364>,5,
<1000,-741.935,550.468>,5,
<1000,-677.419,458.897>,5,
<1000,-612.903,375.65>,5,
<1000,-548.387,300.728>,5,
<1000,-483.871,234.131>,5,
<1000,-419.355,175.858>,5,
<1000,-354.839,125.911>,5,
<1000,-290.323,84.2872>,5,
<1000,-225.806,50.9886>,5,
<1000,-161.29,26.0146>,5,
<1000,-96.7742,9.36524>,5,
<1000,-32.2581,1.04058>,5,
<1000,32.2581,1.04058>,5,
<1000,96.7742,9.36524>,5,
<1000,161.29,26.0146>,5,
<1000,225.806,50.9886>,5,
<1000,290.323,84.2872>,5,
<1000,354.839,125.911>,5,
<1000,419.355,175.858>,5,
<1000,483.871,234.131>,5,
<1000,548.387,300.728>,5,
<1000,612.903,375.65>,5,
<1000,677.419,458.897>,5,
<1000,741.935,550.468>,5,
<1000,806.452,650.364>,5,
<1000,870.968,758.585>,5,
<1000,935.484,875.13>,5,
<1000,1000,1000>,5 
pigment {rgb <0.4,0.4,0.4>}
no_shadow
}
sphere_sweep{
linear_spline
32,
<-1000,-1000,1000>,20,
<-818.67,-935.484,875.13>,20,
<-660.703,-870.968,758.585>,20,
<-524.487,-806.452,650.364>,20,
<-408.412,-741.935,550.468>,20,
<-310.866,-677.419,458.897>,20,
<-230.237,-612.903,375.65>,20,
<-164.916,-548.387,300.728>,20,
<-113.289,-483.871,234.131>,20,
<-73.7471,-419.355,175.858>,20,
<-44.6779,-354.839,125.911>,20,
<-24.4705,-290.323,84.2872>,20,
<-11.5135,-225.806,50.9886>,20,
<-4.1959,-161.29,26.0146>,20,
<-0.906314,-96.7742,9.36524>,20,
<-0.0335672,-32.2581,1.04058>,20,
<0.0335672,32.2581,1.04058>,20,
<0.906314,96.7742,9.36524>,20,
<4.1959,161.29,26.0146>,20,
<11.5135,225.806,50.9886>,20,
<24.4705,290.323,84.2872>,20,
<44.6779,354.839,125.911>,20,
<73.7471,419.355,175.858>,20,
<113.289,483.871,234.131>,20,
<164.916,548.387,300.728>,20,
<230.237,612.903,375.65>,20,
<310.866,677.419,458.897>,20,
<408.412,741.935,550.468>,20,
<524.487,806.452,650.364>,20,
<660.703,870.968,758.585>,20,
<818.67,935.484,875.13>,20,
<1000,1000,1000>,20 
pigment {rgb <0.2,1,0.2>}
no_shadow
}

Licensing

I, the copyright holder of this work, hereby publish it under the following licenses:
GNU head 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.
w:en:Creative Commons
attribution
This file is licensed under the Creative Commons Attribution 3.0 Unported license.
You are free:
  • to share – to copy, distribute and transmit the work
  • to remix – to adapt the work
Under the following conditions:
  • attribution – You must give appropriate credit, provide a link to the license, and indicate if changes were made. You may do so in any reasonable manner, but not in any way that suggests the licensor endorses you or your use.
You may select the license of your choice.

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inception

11 September 2007

11 September 2007

File history

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Date/TimeThumbnailDimensionsUserComment
current11:50, 10 September 2014Thumbnail for version as of 11:50, 10 September 2014541 × 536 (145 KB)wikimediacommons>RokerHROoptipng -o7 → 27.30% decrease

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