From 100898f1bdf1f00e3f8ba8ddb68703bcbed1e77e Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?Andreas=20M=C3=BCller?= Date: Wed, 4 Aug 2021 20:24:32 +0200 Subject: add new image stuff --- buch/papers/clifford/3d/Makefile | 13 +++ buch/papers/clifford/3d/common.inc | 206 +++++++++++++++++++++++++++++++++++++ buch/papers/clifford/3d/dq.pov | 25 +++++ 3 files changed, 244 insertions(+) create mode 100644 buch/papers/clifford/3d/Makefile create mode 100644 buch/papers/clifford/3d/common.inc create mode 100644 buch/papers/clifford/3d/dq.pov (limited to 'buch') diff --git a/buch/papers/clifford/3d/Makefile b/buch/papers/clifford/3d/Makefile new file mode 100644 index 0000000..e6a9be3 --- /dev/null +++ b/buch/papers/clifford/3d/Makefile @@ -0,0 +1,13 @@ +# +# Makefile +# +# (c) 2021 Prof Dr Andreas Müller, OST Ostschweizer Fachhochschule +# +all: dq.jpg + +dq.png: dq.pov common.inc + povray +A0.1 +W1920 +H1080 -Odq.png dq.pov + +dq.jpg: dq.png + convert dq.png -density 300 -units PixelsPerInch dq.jpg + diff --git a/buch/papers/clifford/3d/common.inc b/buch/papers/clifford/3d/common.inc new file mode 100644 index 0000000..4bc2e7d --- /dev/null +++ b/buch/papers/clifford/3d/common.inc @@ -0,0 +1,206 @@ +// +// common.inc +// +// (c) 2021 Prof Dr Andreas Müller, OST Ostschweizer Fachhochschule +// +#version 3.7; +#include "colors.inc" + +global_settings { + assumed_gamma 1 +} + +#declare imagescale = 0.14; +#declare r = 0.04; + +camera { + location <40, 10, 15> + look_at <0, 0, 0> + right 16/9 * x * imagescale + up y * imagescale +} + +light_source { + <40, 20, 20> 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 to with thickness with +// color +// +#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(< -3, 0, 0 >, < 3, 0, 0 >, r, White) +arrow(< 0, -3, 0 >, < 0, 3, 0 >, r, White) +arrow(< 0, 0, -3 >, < 0, 0, 3 >, r, White) + +#macro circlearrow0(e1, e2, e3, r1, r2) + +mesh { + #declare N = 100; + #declare phi = 0; + #declare phimax = 1.8 * pi; + #declare phistep = (phimax - phi) / N; + #while (phi < phimax - phistep/2) + triangle { + center + r1 * (cos(phi ) * e1 + sin(phi ) * e2) - h * e3, + center + r2 * (cos(phi ) * e1 + sin(phi ) * e2) - h * e3, + center + r1 * (cos(phi+phistep) * e1 + sin(phi+phistep) * e2) - h * e3 + } + triangle { + center + r1 * (cos(phi+phistep) * e1 + sin(phi+phistep) * e2) - h * e3, + center + r2 * (cos(phi ) * e1 + sin(phi ) * e2) - h * e3, + center + r2 * (cos(phi+phistep) * e1 + sin(phi+phistep) * e2) - h * e3 + } + triangle { + center + r1 * (cos(phi ) * e1 + sin(phi ) * e2) + h * e3, + center + r2 * (cos(phi ) * e1 + sin(phi ) * e2) + h * e3, + center + r1 * (cos(phi+phistep) * e1 + sin(phi+phistep) * e2) + h * e3 + } + triangle { + center + r1 * (cos(phi+phistep) * e1 + sin(phi+phistep) * e2) + h * e3, + center + r2 * (cos(phi ) * e1 + sin(phi ) * e2) + h * e3, + center + r2 * (cos(phi+phistep) * e1 + sin(phi+phistep) * e2) + h * e3 + } + triangle { + center + r1 * (cos(phi ) * e1 + sin(phi ) * e2) - h * e3, + center + r1 * (cos(phi+phistep) * e1 + sin(phi+phistep) * e2) - h * e3, + center + r1 * (cos(phi+phistep) * e1 + sin(phi+phistep) * e2) + h * e3 + } + triangle { + center + r1 * (cos(phi ) * e1 + sin(phi ) * e2) - h * e3, + center + r1 * (cos(phi+phistep) * e1 + sin(phi+phistep) * e2) + h * e3, + center + r1 * (cos(phi ) * e1 + sin(phi ) * e2) + h * e3 + } + triangle { + center + r2 * (cos(phi ) * e1 + sin(phi ) * e2) - h * e3, + center + r2 * (cos(phi+phistep) * e1 + sin(phi+phistep) * e2) - h * e3, + center + r2 * (cos(phi+phistep) * e1 + sin(phi+phistep) * e2) + h * e3 + } + triangle { + center + r2 * (cos(phi ) * e1 + sin(phi ) * e2) - h * e3, + center + r2 * (cos(phi+phistep) * e1 + sin(phi+phistep) * e2) + h * e3, + center + r2 * (cos(phi ) * e1 + sin(phi ) * e2) + h * e3 + } + #declare phi = phi + phistep; + #end + + triangle { + center + r1 * e1 - h * e3, + center + r1 * e1 + h * e3, + center + r2 * e1 + h * e3 + } + triangle { + center + r2 * e1 - h * e3, + center + r2 * e1 + h * e3, + center + r1 * e1 - h * e3 + } + triangle { + center + r1 * cos(phi) * e1 + r1 * sin(phi) * e2 - h * e3, + center + r2 * cos(phi) * e1 + r2 * sin(phi) * e2 - h * e3, + center + 0.5*(r1+r2) * (cos(phi + pi/12) * e1 + sin(phi + pi/12) * e2) - h * e3 + } + triangle { + center + r1 * cos(phi) * e1 + r1 * sin(phi) * e2 + h * e3, + center + r2 * cos(phi) * e1 + r2 * sin(phi) * e2 + h * e3, + center + 0.5*(r1+r2) * (cos(phi + pi/12) * e1 + sin(phi + pi/12) * e2) + h * e3 + } + triangle { + center + r1 * cos(phi) * e1 + r1 * sin(phi) * e2 - h * e3, + center + 0.5*(r1+r2) * (cos(phi + pi/12) * e1 + sin(phi + pi/12) * e2) - h * e3 + center + r1 * cos(phi) * e1 + r1 * sin(phi) * e2 + h * e3 + } + triangle { + center + 0.5*(r1+r2) * (cos(phi + pi/12) * e1 + sin(phi + pi/12) * e2) - h * e3 + center + r1 * cos(phi) * e1 + r1 * sin(phi) * e2 + h * e3, + center + 0.5*(r1+r2) * (cos(phi + pi/12) * e1 + sin(phi + pi/12) * e2) + h * e3 + } + triangle { + center + 0.5*(r1+r2) * (cos(phi + pi/12) * e1 + sin(phi + pi/12) * e2) - h * e3, + center + r2 * cos(phi) * e1 + r2 * sin(phi) * e2 - h * e3, + center + r2 * cos(phi) * e1 + r2 * sin(phi) * e2 + h * e3 + } + triangle { + center + 0.5*(r1+r2) * (cos(phi + pi/12) * e1 + sin(phi + pi/12) * e2) - h * e3, + center + r2 * cos(phi) * e1 + r2 * sin(phi) * e2 + h * e3, + center + 0.5*(r1+r2) * (cos(phi + pi/12) * e1 + sin(phi + pi/12) * e2) + h * e3 + } + + pigment { + color rgb<1, 0.4, 0.4> + } +} + +#end + + +#macro circlearrow(fromdirection, axis, center, r, h) + +#declare e1 = vnormalize(fromdirection); +#declare e2 = -vnormalize(vcross(axis, fromdirection)); +#declare e3 = vnormalize(axis); + +#declare r1 = 0.4 * r; +#declare r2 = r; + +circlearrow0(e1, e2, e3, r1, r2) + +box { + center - r * (e1 + e2) - 0.021 * e3, center + r * (e1 + e2) + 0.021 * e3 + pigment { + color rgb<0.6,0.6,1> + } +} + +cone { + center + 0.02101 * e3, r, center + 2 * r * e3, 0 + pigment { + color rgbt<0.6,0.6,1,0.8> + } +} + +cylinder { + center, center + 2 * r * e3, 0.04*0.2 + pigment { + color rgb<1.0,0.6,0.6> + } +} + +#end + diff --git a/buch/papers/clifford/3d/dq.pov b/buch/papers/clifford/3d/dq.pov new file mode 100644 index 0000000..92b702a --- /dev/null +++ b/buch/papers/clifford/3d/dq.pov @@ -0,0 +1,25 @@ +// +// dq.pov -- Drehung und Quaternion +// +// (c) 2021 Prof Dr Andreas Müller, OST Ostschweizer Fachhochschule +// +#include "common.inc" + +arrow(<0,0,0>, <1, sqrt(2), 2>, r, Red) + +#declare r = 0.2 * r; + +circlearrow(<1,0,0>, <0,0,1>, <1, sqrt(2), 0>, 1, 0.022) +circlearrow(<1,0,0>, <0,1,0>, <1, 0, 2>, sqrt(2)/2, 0.022) +circlearrow(<0,0,1>, <1,0,0>, <0, sqrt(2), 2>, 0.5, 0.022) + +#declare l = 2.8; +#declare h = 0.0001; +union { + box { <-l,-l,-h>, } + box { <-l,-h,-l>, } + box { <-h,-l,-l>, <-h,l,l> } + pigment { + color rgbt<0.6,0.6,0.6,0.0> + } +} -- cgit v1.2.1