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-rw-r--r-- | buch/chapters/80-wahrscheinlichkeit/images/positiv.pov | 137 |
1 files changed, 137 insertions, 0 deletions
diff --git a/buch/chapters/80-wahrscheinlichkeit/images/positiv.pov b/buch/chapters/80-wahrscheinlichkeit/images/positiv.pov new file mode 100644 index 0000000..9197498 --- /dev/null +++ b/buch/chapters/80-wahrscheinlichkeit/images/positiv.pov @@ -0,0 +1,137 @@ +// +// diffusion.pov +// +// (c) 2021 Prof Dr Andreas Müller, OST Ostscheizer Fachhochschule +// +#version 3.7; +#include "colors.inc" + +global_settings { + assumed_gamma 1 +} + +#declare imagescale = 0.077; +#declare N = 30; +#declare vscale = 10; +#declare r = 0.04; + +camera { + location <43, 20, -20> + look_at <1, 0.83, 2.5> + right 16/9 * x * imagescale + up y * imagescale +} + +light_source { + <40, 20, -10> color White + area_light <1,0,0> <0,0,1>, 10, 10 + adaptive 1 + jitter +} + +sky_sphere { + pigment { + color rgb<1,1,1> + } +} + +// +// draw an arrow from <from> to <to> with thickness <arrowthickness> with +// color <c> +// +#macro arrow(from, to, arrowthickness, c) +#declare arrowdirection = vnormalize(to - from); +#declare arrowlength = vlength(to - from); +union { + sphere { + from, 1.1 * arrowthickness + } + cylinder { + from, + from + (arrowlength - 5 * arrowthickness) * arrowdirection, + arrowthickness + } + cone { + from + (arrowlength - 5 * arrowthickness) * arrowdirection, + 2 * arrowthickness, + to, + 0 + } + pigment { + color c + } + finish { + specular 0.9 + metallic + } +} +#end + +arrow(<0,0,0>, <3,0,0>, r, White) +arrow(<0,0,0>, <0,3,0>, r, White) +arrow(<0,0,0>, <0,0,3>, r, White) + +#macro quadrant(A, B, C) +intersection { + sphere { <0, 0, 0>, 1 + matrix <A.x, A.y, A.z, + B.x, B.y, B.z, + C.x, C.y, C.z, + 0, 0, 0 > + } + plane { vnormalize(vcross(A, B)), 0 } + plane { vnormalize(vcross(B, C)), 0 } + plane { vnormalize(vcross(C, A)), 0 } + pigment { + //color rgbf<0.8,1,1,0.7> + color rgb<0.8,1,1> + } + finish { + specular 0.9 + metallic + } +} +#end + +#macro eigenvektor(E) +union { + cylinder { -E, 8 * E, r } + #declare r0 = 0.7 * r; + + sphere { 3 * < 0, E.y, E.z >, r0 } + sphere { 3 * < E.x, 0, E.z >, r0 } + sphere { 3 * < E.x, E.y, 0 >, r0 } + sphere { 3 * E, r0 } + + cylinder { 3*< E.x, 0, 0 >, 3*< E.x, 0, E.z >, r0 } + cylinder { 3*< E.x, 0, 0 >, 3*< E.x, E.y, 0 >, r0 } + cylinder { 3*< 0, E.y, 0 >, 3*< E.x, E.y, 0 >, r0 } + cylinder { 3*< 0, E.y, 0 >, 3*< 0, E.y, E.z >, r0 } + cylinder { 3*< 0, 0, E.z >, 3*< 0, E.y, E.z >, r0 } + cylinder { 3*< 0, 0, E.z >, 3*< E.x, 0, E.z >, r0 } + + cylinder { 3*< E.x, E.y, 0 >, 3*E, r0 } + cylinder { 3*< 0, E.y, E.z >, 3*E, r0 } + cylinder { 3*< E.x, 0, E.z >, 3*E, r0 } + pigment { + color rgb<1,0.6,1>*0.6 + } + finish { + specular 0.9 + metallic + } +} +#end + +#include "quadrant.inc" + +//union { +// pigment { +// color rgb<0.8,1,1>*0.6 +// } +// finish { +// specular 0.9 +// metallic +// } +//} + |