add povmesh examples

Author: monkstone

.gitignore

@@ -1,3 +1,4 @@
+*.inc
 *~
 *.jar
 *.gem

examples/implicit.rb

@@ -52,7 +52,7 @@ def setup
   Processing::ArcBall.init(self)
   @vbo = Gfx::MeshToVBO.new(self)
   @curr_zoom = 1
-  vol = EvaluatingVolume.new(TVec3D.new(400,400,400), RES, RES, RES, MAX_ISO)
+  vol = EvaluatingVolume.new(TVec3D.new(400, 400, 400), RES, RES, RES, MAX_ISO)
   surface = Volume::HashIsoSurface.new(vol)
   @mesh = WETriangleMesh.new
   surface.compute_surface_mesh(mesh, ISO)
@@ -84,6 +84,15 @@ def key_pressed
     implicit.setSpecular(color(50, 50, 50))
   when 's', 'S'
     save_frame("implicit.png")
+  when 'p', 'P'
+    no_loop
+    pm = Gfx::POVMesh.new(self)
+    file = java.io.File.new('implicit.inc')
+    pm.begin_save(file)
+    pm.set_texture(Gfx::Textures::WHITE)
+    pm.saveAsPOV(mesh, true)
+    pm.end_save
+    puts 'finisded'
   end
 end
 
@@ -94,6 +103,7 @@ def define_lights
   spot_light(30, 30, 30, 0, 40, 200, 0, -0.5, -0.5, PI / 2, 2)
 end
 
+# Custom evaluating Volume Class
 class EvaluatingVolume < Volume::VolumetricSpace
 
   attr_reader :upper_bound

examples/povmesh/ftest.rb

@@ -0,0 +1,46 @@
+require 'toxiclibs'
+
+attr_reader :gfx, :mesh0, :mesh1, :mesh2
+
+def settings
+  size(200, 200, P3D)
+  smooth 4
+end
+
+def setup
+  sketch_title('FTest')
+  @gfx = Gfx::ToxiclibsSupport.new(self)
+  # define a rounded cube using the SuperEllipsoid surface function
+  vert = AABB.fromMinMax(TVec3D.new(-1.0, -3.5, -1.0), TVec3D.new(1.0, 3.5, 1.0))
+  box = AABB.fromMinMax(TVec3D.new(1.0, -1.5, -1.0), TVec3D.new(3.0, -3.5, 1.0))
+  box2 = AABB.fromMinMax(TVec3D.new(1.0, 2.0, -1.0), TVec3D.new(3.0, 0.0, 1.0))
+  @mesh0 = box.to_mesh
+  @mesh1 = vert.to_mesh
+  @mesh2 = box2.to_mesh
+  mesh0.add_mesh(mesh1)
+  mesh0.add_mesh(mesh2)
+  mesh0.compute_face_normals
+  mesh0.compute_vertex_normals
+  fileID = 'FTest'
+  pm = Gfx::POVMesh.new(self)
+  file = java.io.File.new(sketchPath(fileID + '.inc'))
+  pm.begin_save(file)
+  pm.set_texture(Gfx::Textures::CHROME)
+  pm.saveAsPOV(mesh0.faceOutwards, false)
+  #        pm.set_texture(Textures::RED)
+  #        pm.saveAsPOV(mesh1, false)
+  #        pm.set_texture(Textures::WHITE)
+  #        pm.saveAsPOV(mesh2, false)
+  pm.end_save
+  #   exit
+end
+
+def draw
+  background 50, 50, 200
+  lights
+  translate(width / 2, height / 2)
+  scale(10)
+  rotateY(20.radians)
+  gfx.choose_stroke_fill(false, Toxi::TColor::WHITE, Toxi::TColor::RED)
+  gfx.mesh(mesh0)
+end

examples/povmesh/tentacle.rb

@@ -0,0 +1,73 @@
+require 'toxiclibs'
+
+# A 3D Tentacle by Nikolaus Gradwohl http://www.local-guru.net
+# Adapted for JRubyArt and mesh to PShape, and mesh2 export by Martin Prout
+
+attr_reader :mesh, :gfx, :tentacle
+
+def settings
+  size(500, 500, P3D)
+end
+
+def setup
+  sketch_title 'Tentacle'
+  ArcBall.init(self)
+  @gfx = Gfx::MeshToVBO.new(self)
+  volume = VolumetricSpaceArray.new(TVec3D.new(100, 200, 100), 100, 100, 100)
+  surface = ArrayIsoSurface.new(volume)
+  @mesh = TriangleMesh.new
+  brush = RoundBrush.new(volume, 10)
+  20.times do |i|
+    brush.set_size(i * 1.2 + 6)
+    x = cos(i * TWO_PI / 20) * 10
+    y = sin(i * TWO_PI / 20) * 10
+    brush.draw_at_absolute_pos(TVec3D.new(x, -25 + i * 7, y), 1)
+  end
+  (4..20).step(4) do |i|
+    brush.set_size(i / 1.5 + 4)
+    x = cos(i * TWO_PI / 20) * (i * 1.2 + 16)
+    y = sin(i * TWO_PI / 20) * (i * 1.2 + 16)
+    brush.draw_at_absolute_pos(TVec3D.new(x, -25 + i * 7, y), 1)
+    brush.set_size(i / 2 + 2)
+    x2 = cos(i * TWO_PI / 20) * (i * 1.2 + 18)
+    y2 = sin(i * TWO_PI / 20) * (i * 1.2 + 18)
+    brush.draw_at_absolute_pos(TVec3D.new(x2, -25 + i * 7, y2), -1.4)
+  end
+  volume.close_sides
+  surface.reset
+  surface.compute_surface_mesh(mesh, 0.5)
+  no_stroke
+  @tentacle = gfx.mesh_to_shape(mesh, true)
+  tentacle.set_fill(color(200, 10, 10))
+  tentacle.set_ambient(80)
+  tentacle.set_specular(80)
+end
+
+def draw
+  background(150)
+  lights
+  setup_lights
+  shape(tentacle)
+end
+
+def setup_lights
+  lights
+  ambient_light(100, 100, 100)
+  directional_light(100, 100, 100, -1, -1, 1)
+  light_specular(50, 50, 50)
+end
+
+def key_pressed
+  case key
+  when 'p', 'P'
+    fileID = 'Tentacle'
+    pm = Gfx::POVMesh.new(self)
+    pm.begin_save(java.io.File.new(fileID + '.inc'))
+    pm.set_texture(Gfx::Textures::RED)  # red with Phong texture
+    pm.saveAsPOV(mesh, true)
+    pm.end_save
+    exit
+  when 's', 'S'
+    save_frame('Tentacle.png')
+  end
+end

src/toxi/processing/POVWriter.java

@@ -42,7 +42,7 @@ public class POVWriter implements POVInterface {
     /**
      *
      */
-    public final String VERSION = "0.58";
+    public final String VERSION = "0.60";
     /**
      *
      */
@@ -72,7 +72,8 @@ public class POVWriter implements POVInterface {
 //    }
     public POVWriter(File meshObj) {
         this.opt = Textures.RAW;
-        spath = meshObj.getParent();
+        String path = meshObj.getAbsolutePath();
+        spath = path.replaceFirst(meshObj.getName(), "");
         try {
             this.povWriter = new PrintWriter(new BufferedWriter(new OutputStreamWriter(new FileOutputStream(meshObj), "UTF8")));
         } catch (IOException ex) {
@@ -415,7 +416,7 @@ protected void endForeground() {
         povWriter.append("}");
         povWriter.append(eol);
 
-        String outFile = spath + File.separator + "my_texture.inc";
+        String outFile = spath + "my_texture.inc";
         // if (declaredOpt.size() > 1) { // guard against only RAW
         try {
             PrintWriter pw;

src/toxi/processing/Tracing.java

@@ -2,7 +2,7 @@
  * To change this template, choose Tools | Templates
  * and open the template in the editor.
  */
-package povmesh.mesh;
+package toxi.processing;
 
 /**
  *

toxiclibs.gemspec

@@ -8,8 +8,12 @@ Gem::Specification.new do |spec|
   spec.version = Toxiclibs::VERSION
   spec.has_rdoc = true
   spec.extra_rdoc_files = %w{README.md LICENSE.md}
-  spec.summary = %q{Experimental gem for some toxiclibs}
-  spec.description = %q{A gem wrapper for some toxiclibs jars}
+  spec.summary = %q{Updated and extended toxiclibs libraries for JRubyArt}
+  spec.description =<<-EOS
+  Toxiclibs java libraries wrapped in a rubygem. Updated to use java lambda 
+  expressions (available since jdk8). Also new since version 0.5.0 are 3D Mesh 
+  to PShape and 3D mesh to Povray mesh2 utilities.
+  EOS
   spec.license = 'GPLv3'
   spec.authors = %w{Karsten/ Schmidt Martin/ Prout}
   spec.email = 'martin_p@lineone.net'
@@ -28,5 +32,3 @@ Gem::Specification.new do |spec|
   spec.requirements << 'maven = 3.3.3'
   spec.requirements << 'jruby_art = 1.0+'
 end
-
-