From: Alex Schmidt <alex@treefish.org>
Date: Thu, 20 Dec 2012 14:23:53 +0000 (+0100)
Subject: ...
X-Git-Url: http://git.treefish.org/~alex/phys/latlib.git/commitdiff_plain/79dada2bcf873731ed4e78cfed64d8274fb5c587

...
---

diff --git a/cubelooks.cpp b/cubelooks.cpp
index ae6f4a5..6584383 100644
--- a/cubelooks.cpp
+++ b/cubelooks.cpp
@@ -6,28 +6,138 @@
 
 using namespace std;
 
-/* GLOBAL */
-vector< pair <unsigned long int,cubelooks::env*> > Envs;
+cubelooks::env *Env;
 
 int cubelooks::cube::allid = 0;
 
+void cubelooks::cube::drawBox()
+{
+  glBegin(GL_LINES);
+  
+  glVertex3f(-1.0f, 1.0f, -1.0f);	
+  glVertex3f( 1.0f, 1.0f, -1.0f);
+  glVertex3f(-1.0f, -1.0f, -1.0f);	
+  glVertex3f( 1.0f, -1.0f, -1.0f);
+  glVertex3f(-1.0f, 1.0f, 1.0f);	
+  glVertex3f( 1.0f, 1.0f, 1.0f);
+  glVertex3f(-1.0f, -1.0f, 1.0f);	
+  glVertex3f( 1.0f, -1.0f, 1.0f);
+
+  glVertex3f( 1.0f, 1.0f, -1.0f);
+  glVertex3f( 1.0f, -1.0f, -1.0f);
+  glVertex3f( -1.0f, 1.0f, -1.0f);
+  glVertex3f( -1.0f, -1.0f, -1.0f);
+  glVertex3f( 1.0f, 1.0f, 1.0f);
+  glVertex3f( 1.0f, -1.0f, 1.0f);
+  glVertex3f( -1.0f, 1.0f, 1.0f);
+  glVertex3f( -1.0f, -1.0f, 1.0f);
+
+  glVertex3f( -1.0f, -1.0f, 1.0f);
+  glVertex3f( -1.0f, -1.0f, -1.0f);
+  glVertex3f( -1.0f, 1.0f, 1.0f);
+  glVertex3f( -1.0f, 1.0f, -1.0f);
+  glVertex3f( 1.0f, -1.0f, 1.0f);
+  glVertex3f( 1.0f, -1.0f, -1.0f);
+  glVertex3f( 1.0f, 1.0f, 1.0f);
+  glVertex3f( 1.0f, 1.0f, -1.0f);
+
+  glEnd();
+}
+
+void cubelooks::cube::drawAll()
+{
+  glMatrixMode(GL_MODELVIEW);
+  glPushMatrix();
+
+  glTranslatef(-1,-1,-1);
+
+  for (int iz=0; iz<l; iz++) {
+    for (int iy=0; iy<l; iy++) {
+      for (int ix=0; ix<l; ix++) {
+	glPushMatrix();
+	glTranslatef(2.0*ix/l,2.0*iy/l,2.0*iz/l);
+	glScalef(2.0/l,2.0/l,2.0/l);
+
+	/* draw links */
+	glBegin(GL_LINES);
+	glColor4f(link[iz*l*l*3*4 + iy*l*3*4 + ix*3*4 + 0*4 + 0],
+		  link[iz*l*l*3*4 + iy*l*3*4 + ix*3*4 + 0*4 + 1],
+		  link[iz*l*l*3*4 + iy*l*3*4 + ix*3*4 + 0*4 + 2],
+		  link[iz*l*l*3*4 + iy*l*3*4 + ix*3*4 + 0*4 + 3]);
+	glVertex3f(0,0,0); glVertex3f(1,0,0);
+	glColor4f(link[iz*l*l*3*4 + iy*l*3*4 + ix*3*4 + 1*4 + 0],
+		  link[iz*l*l*3*4 + iy*l*3*4 + ix*3*4 + 1*4 + 1],
+		  link[iz*l*l*3*4 + iy*l*3*4 + ix*3*4 + 1*4 + 2],
+		  link[iz*l*l*3*4 + iy*l*3*4 + ix*3*4 + 1*4 + 3]);
+	glVertex3f(0,0,0); glVertex3f(0,1,0);
+	glColor4f(link[iz*l*l*3*4 + iy*l*3*4 + ix*3*4 + 2*4 + 0],
+		  link[iz*l*l*3*4 + iy*l*3*4 + ix*3*4 + 2*4 + 1],
+		  link[iz*l*l*3*4 + iy*l*3*4 + ix*3*4 + 2*4 + 2],
+		  link[iz*l*l*3*4 + iy*l*3*4 + ix*3*4 + 2*4 + 3]);
+	glVertex3f(0,0,0); glVertex3f(0,0,1);
+	glEnd();
+
+	/* draw plaquettes */
+	glColor4f(1,1,1,0.5);
+	glBegin(GL_QUADS);
+	glColor4f(plaq[iz*l*l*3*4 + iy*l*3*4 + ix*3*4 + 2*4 + 0],
+		  plaq[iz*l*l*3*4 + iy*l*3*4 + ix*3*4 + 2*4 + 1],
+		  plaq[iz*l*l*3*4 + iy*l*3*4 + ix*3*4 + 2*4 + 2],
+		  plaq[iz*l*l*3*4 + iy*l*3*4 + ix*3*4 + 2*4 + 3]);
+	glVertex3f(0, 0, 0); glVertex3f(1, 0, 0); glVertex3f(1, 1, 0); glVertex3f(0, 1, 0);
+	glColor4f(plaq[iz*l*l*3*4 + iy*l*3*4 + ix*3*4 + 1*4 + 0],
+		  plaq[iz*l*l*3*4 + iy*l*3*4 + ix*3*4 + 1*4 + 1],
+		  plaq[iz*l*l*3*4 + iy*l*3*4 + ix*3*4 + 1*4 + 2],
+		  plaq[iz*l*l*3*4 + iy*l*3*4 + ix*3*4 + 1*4 + 3]);
+	glVertex3f(0, 0, 0); glVertex3f(1, 0, 0); glVertex3f(1, 0, 1); glVertex3f(0, 0, 1);
+	glColor4f(plaq[iz*l*l*3*4 + iy*l*3*4 + ix*3*4 + 0*4 + 0],
+		  plaq[iz*l*l*3*4 + iy*l*3*4 + ix*3*4 + 0*4 + 1],
+		  plaq[iz*l*l*3*4 + iy*l*3*4 + ix*3*4 + 0*4 + 2],
+		  plaq[iz*l*l*3*4 + iy*l*3*4 + ix*3*4 + 0*4 + 3]);
+	glVertex3f(0, 0, 0); glVertex3f(0, 1, 0); glVertex3f(0, 1, 1); glVertex3f(0, 0, 1);
+	glEnd();
+
+	glPopMatrix();
+      }
+    }
+  }
+    
+  glPopMatrix();
+}
+
 void cubelooks::cube::draw()
 {
+  glMatrixMode(GL_MODELVIEW);
+  glPushMatrix();
+
+  //cout << zoom << endl;
+
+  glScalef(zoom, zoom, zoom);
+  glRotatef(az, 0, 1, 0);
+  glRotatef(alt, 1, 0, 0);
+
+  /*
   glBegin(GL_QUADS);
   glVertex2f(-1, -1); glVertex2f(1, -1); glVertex2f(1, 1); glVertex2f(-1, 1);
   glEnd();
+  */
+
+  //drawBox();
+  drawAll();
+
+  glPopMatrix();
 }
 
 namespace mygl 
 {
-  cubelooks::env* getEnv()
+  int rotcube[3];
+
+  static int getCubeFromPos(int x, int y)
   {
-    for (int ienv=0; ienv<Envs.size(); ienv++)
-      if ( Envs.at(ienv).first == pthread_self() ) {
-	return Envs.at(ienv).second;
-      }
-    cerr << "Something terrible happened: Could not find env-thread-id!" << endl;
-    exit(1);
+    int col = x / ((float)Env->w / Env->layout[0]);
+    int row = Env->layout[1] - y / ((float)Env->h / Env->layout[1]);
+
+    return col + row*Env->layout[0];
   }
   
   static void idleFunc()
@@ -35,13 +145,40 @@ namespace mygl
     glutPostRedisplay();
   }
 
+  static void motionFunc(int x, int y)
+  {   
+    Env->cubes.at(rotcube[0]).az += rotcube[1] - x;
+    Env->cubes.at(rotcube[0]).alt += rotcube[2] - y;
+
+    rotcube[1] = x;
+    rotcube[2] = y;
+
+    glutPostRedisplay();
+  }
+
+  static void mouseFunc(int button, int state, int x, int y)
+  {
+    if (button == 0) {
+      rotcube[0] = getCubeFromPos(x,y);
+      rotcube[1] = x;
+      rotcube[2] = y;
+    }
+
+    if (button == 4) {
+      Env->cubes.at(getCubeFromPos(x,y)).zoom *= 1.1;
+      glutPostRedisplay();
+    }
+    else if (button == 3) {
+      Env->cubes.at(getCubeFromPos(x,y)).zoom *= 0.9;
+      glutPostRedisplay();
+    }
+  }
+
   static void reshapeFunc(int w, int h)
   {
     int neww;
     int newh;
 
-    cubelooks::env *Env = getEnv();
-
     if ( w == Env->w ) {
       newh = h;
       neww = Env->aspect*h;
@@ -64,8 +201,6 @@ namespace mygl
 
   static void displayFunc()
   {
-    cubelooks::env *Env = getEnv();
-
     glClearColor(0,0,0,0);
     glClear(GL_COLOR_BUFFER_BIT|GL_DEPTH_BUFFER_BIT);
  
@@ -94,8 +229,6 @@ namespace mygl
   {
     int winsize[2];
 
-    cubelooks::env* Env = (cubelooks::env*)_Env;
-
     glutInit( ((cubelooks::env*)Env)->argc, ((cubelooks::env*)Env)->argv );
     glutInitDisplayMode(GLUT_DOUBLE|GLUT_RGB|GLUT_DEPTH);
 
@@ -119,31 +252,49 @@ namespace mygl
 
     glutDisplayFunc(&displayFunc);
     glutReshapeFunc(&reshapeFunc);
+    glutMotionFunc(&motionFunc);
+    glutMouseFunc(&mouseFunc);
     //glutIdleFunc(&idleFunc);
 
-    Envs.push_back( pair<unsigned long int,cubelooks::env*>(pthread_self(), (cubelooks::env*)Env) ); 
+    glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA); 
+    glEnable( GL_BLEND );
 
     glutMainLoop();
   }
 };
 
-cubelooks::cube::cube()
+cubelooks::cube::cube(int _l)
 {
+  l = _l;
+  link = new float[l*l*l*3 * 4];
+  plaq = new float[l*l*l*3 * 4];
+  az = 30;
+  alt = -20;
+  zoom = 0.6;
   id = allid;
   allid++;
+
+  for (int i=0; i<l*l*l*3; i++) {
+    link[i*4+0]=1; link[i*4+3]=0.6;
+    plaq[i*4+1]=1; plaq[i*4+3]=0.2;
+  }
 }
 
-cubelooks::cubelooks(const int& xcubes, const int& ycubes, int *argc, char **argv)
+cubelooks::cubelooks(const int& xcubes, const int& ycubes, const int& l, int *argc, char **argv)
 {
-  Env.argc = argc;
-  Env.argv = argv;
-  Env.layout[0] = xcubes;
-  Env.layout[1] = ycubes;
-  Env.aspect = (double)xcubes/ycubes;
+  _Env.argc = argc;
+  _Env.argv = argv;
+  _Env.layout[0] = xcubes;
+  _Env.layout[1] = ycubes;
+  _Env.aspect = (double)xcubes/ycubes;
   for (int icube=0; icube<xcubes*ycubes; icube++) {
-    cube newCube;
-    Env.cubes.push_back(newCube);
+    cube newCube(l);
+    _Env.cubes.push_back(newCube);
   }
 
-  pthread_create(&glThreadId, 0, &mygl::glutThread, &Env);
+  Env = &_Env;
+
+  pthread_create(&glThreadId, 0, &mygl::glutThread, NULL);
+
+  sleep(2);
 }
diff --git a/cubelooks.h b/cubelooks.h
index 6ee63f8..6a404a7 100644
--- a/cubelooks.h
+++ b/cubelooks.h
@@ -11,11 +11,18 @@ class cubelooks
  public:
   class cube {
   public:
-    cube();
+    cube(int l);
     void draw();
     int id;
+    float az, alt;
+    float zoom;
   private:
+    void drawAll();
+    void drawBox();
     static int allid;
+    float *plaq;
+    float *link;
+    int l;
   };
 
   struct env {
@@ -27,11 +34,11 @@ class cubelooks
     int w, h;
   };
 
-  cubelooks(const int& xcubes, const int& ycubes, int *argc, char **argv);
+  cubelooks(const int& xcubes, const int& ycubes, const int& l, int *argc, char **argv);
 
  private:
   pthread_t glThreadId;
-  env Env;
+  env _Env;
 };
 
 #endif
diff --git a/cubelooks_test.cpp b/cubelooks_test.cpp
index f065120..b8880c0 100644
--- a/cubelooks_test.cpp
+++ b/cubelooks_test.cpp
@@ -7,9 +7,7 @@ using namespace std;
 int main(int argc, char **argv)
 {
 
-  cubelooks clooks(5,4, &argc, argv);
-
-
+  cubelooks clooks(2,1, 6, &argc, argv);
 
   while(true) {
     sleep(1);