From 5a4f3ecabf6d315fd68a3ab49d307235ee199f0b Mon Sep 17 00:00:00 2001
From: Martin Thoma <info@martin-thoma.de>
Date: Thu, 30 Aug 2012 22:45:46 +0200
Subject: [PATCH] added axis to the ellipsoid

---
 README.md                      |   1 +
 povray/ellipsoid/Makefile      |  17 ------
 povray/ellipsoid/ellipsoid.pov | 105 ++++++++++++++++++++++++++++++---
 3 files changed, 99 insertions(+), 24 deletions(-)

diff --git a/README.md b/README.md
index 3588e5b..8306ab4 100644
--- a/README.md
+++ b/README.md
@@ -29,3 +29,4 @@ some images here
 * [Ubuntuusers.de](http://wiki.ubuntuusers.de/POV-Ray) - German installation instructions
 * [Many examples](http://www.f-lohmueller.de/)
 * [More examples with complete sources](http://www.ms.uky.edu/~lee/visual05/povray/povray.html)
+* [High quality examples](http://hof.povray.org/)
diff --git a/povray/ellipsoid/Makefile b/povray/ellipsoid/Makefile
index d478262..ae3c26c 100644
--- a/povray/ellipsoid/Makefile
+++ b/povray/ellipsoid/Makefile
@@ -11,22 +11,5 @@ make:
 clean:
 	rm -rf  $(TARGET) *.class *.html *.log *.aux *.data *.gnuplot
 
-gif:
-	pdfcrop $(SOURCE).pdf
-	convert -verbose -delay $(DELAY) -loop 0 -density $(DENSITY) $(SOURCE)-crop.pdf $(SOURCE).gif
-	make clean
-
 png:
 	make
-	make svg
-	inkscape $(SOURCE).svg -w $(WIDTH) --export-png=$(SOURCE).png
-
-transparentGif:
-	convert $(SOURCE).pdf -transparent white result.gif
-	make clean
-
-svg:
-	#inkscape $(SOURCE).pdf --export-plain-svg=$(SOURCE).svg
-	pdf2svg $(SOURCE).pdf $(SOURCE).svg
-	# Necessary, as pdf2svg does not always create valid svgs:
-	inkscape $(SOURCE).svg --export-plain-svg=$(SOURCE).svg
diff --git a/povray/ellipsoid/ellipsoid.pov b/povray/ellipsoid/ellipsoid.pov
index cde1901..ebb619c 100644
--- a/povray/ellipsoid/ellipsoid.pov
+++ b/povray/ellipsoid/ellipsoid.pov
@@ -1,24 +1,115 @@
+#version 3.5;
 #include "colors.inc"
-#include "stones.inc" // needed for texture T_Stone1
+#include "glass.inc" 
 
 camera {
-  location <10, 10, 0>
+  location <14, 8, 0>
   look_at <0, 0, 0>
 }
 
 plane {
-  y, 0
+  y, -4
   pigment { checker color Gray color White  }
 }
 
 sphere {
-  <0, 0, 0>, 4  // center and radius
+  <0, 0, 0>, // center of the spehre
+  4          // radius
   scale<1,1,1.4> 
-  pigment { color Green transmit 0.5 }
+  material { M_Glass }
+  photons {  // photon block for an object
+    target 1.0
+    refraction on
+    reflection on
+  }
   finish {
-    reflection 0.1
-    phong 0.3
+    reflection 0.2 // glass reflects a bit
+    phong 0.9 phong_size 40 // a highlight
   }
 }
+
+#declare Axis_texture = //
+pigment {
+  gradient <1,0,0>
+  color_map {[0.0 color <1,1,1>]
+    [0.5 color <1,1,1>]
+    [0.5 color <1,0,0>] 
+    [1.0 color <1,0,0>]
+  }
+    scale 2 
+}
+
+
+#declare Diameter = 0.1;
+#declare LengthX = 5;
+#declare LengthY = 8;
+#declare LengthZ = 5;
+#declare axisY = //
+union {
+  cylinder { 
+    <0, 0, 0>, <LengthY, 0, 0>, Diameter
+  }
+  cone { <LengthY, 0, 0>, Diameter * 2, <LengthY + Diameter * 5 , 0, 0>, 0 }
+  texture { Axis_texture}
+  finish {ambient 0.1 diffuse 0.9 phong 1}
+}
+#declare axis = //
+union {
+  cylinder { 
+    <0, 0, 0>, <LengthX, 0, 0>, Diameter
+  }
+  cone { <LengthX, 0, 0>, Diameter * 2, <LengthX + Diameter * 5 , 0, 0>, 0 }
+  texture { Axis_texture}
+  finish {ambient 0.1 diffuse 0.9 phong 1}
+}
+
+declare XYZ_axis = //
+union {
+  text {
+    ttf "crystal.ttf",
+    "0",
+    .1,
+    0 scale 0.5 
+    pigment{color<1,1,0>}
+  }
+  union {
+    object {axis}
+    text {
+        ttf "crystal.ttf",
+        "X",
+        .1,
+        0 scale 0.5 
+        pigment{color<1,1,0> }
+        translate <LengthX, Diameter*2,Diameter*2>
+    }
+  }
+  union {
+    object {axisY}
+    text {
+        ttf "crystal.ttf",
+        "Y",
+        .1,
+        0 scale 0.5
+        pigment{color<1,1,0>}
+        translate <LengthY, Diameter*2,Diameter*2>
+    }
+    rotate <0,90,0>
+  }
+  union {
+    object {axis }
+    text {  ttf   "crystal.ttf",  "Z",  .1,   0
+    rotate <0,0,-90>
+    scale 0.5 
+    pigment{color<1,1,0>}
+    translate <LengthZ,Diameter*2,Diameter*2> 
+    }
+    rotate <0,0,90>
+  }
+}
+
+object {XYZ_axis}
+
+// this should surround the elipsoid: box {<-1, -1, -1> < 1, 1, 1>}
+
 light_source { <5, 10, 10> color White }
 light_source { <10, 10, 5> color White }