diff options
| -rw-r--r-- | src/classes/com/sun/opengl/util/GLUT.java | 146 |
1 files changed, 146 insertions, 0 deletions
diff --git a/src/classes/com/sun/opengl/util/GLUT.java b/src/classes/com/sun/opengl/util/GLUT.java index c81b31ccd..9ab90fb1e 100644 --- a/src/classes/com/sun/opengl/util/GLUT.java +++ b/src/classes/com/sun/opengl/util/GLUT.java @@ -150,6 +150,60 @@ public class GLUT { glu.gluCylinder(quadObj, base, 0.0, height, slices, stacks); } + public void glutWireCylinder(double radius, double height, int slices, int stacks) { + quadObjInit(glu); + glu.gluQuadricDrawStyle(quadObj, GLU.GLU_LINE); + glu.gluQuadricNormals(quadObj, GLU.GLU_SMOOTH); + /* If we ever changed/used the texture or orientation state + of quadObj, we'd need to change it to the defaults here + with gluQuadricTexture and/or gluQuadricOrientation. */ + glu.gluCylinder(quadObj, radius, radius, height, slices, stacks); + } + + public void glutSolidCylinder(double radius, double height, int slices, int stacks) { + GL gl = glu.getCurrentGL(); + + // Prepare table of points for drawing end caps + double [] x = new double[slices]; + double [] y = new double[slices]; + double angleDelta = Math.PI * 2 / slices; + double angle = 0; + for (int i = 0 ; i < slices ; i ++) { + angle = i * angleDelta; + x[i] = Math.cos(angle) * radius; + y[i] = Math.sin(angle) * radius; + } + + // Draw bottom cap + gl.glBegin(GL.GL_TRIANGLE_FAN); + gl.glNormal3d(0,0,-1); + gl.glVertex3d(0,0,0); + for (int i = 0 ; i < slices ; i ++) { + gl.glVertex3d(x[i], y[i], 0); + } + gl.glVertex3d(x[0], y[0], 0); + gl.glEnd(); + + // Draw top cap + gl.glBegin(GL.GL_TRIANGLE_FAN); + gl.glNormal3d(0,0,1); + gl.glVertex3d(0,0,height); + for (int i = 0 ; i < slices ; i ++) { + gl.glVertex3d(x[i], y[i], height); + } + gl.glVertex3d(x[0], y[0], height); + gl.glEnd(); + + // Draw walls + quadObjInit(glu); + glu.gluQuadricDrawStyle(quadObj, GLU.GLU_FILL); + glu.gluQuadricNormals(quadObj, GLU.GLU_SMOOTH); + /* If we ever changed/used the texture or orientation state + of quadObj, we'd need to change it to the defaults here + with gluQuadricTexture and/or gluQuadricOrientation. */ + glu.gluCylinder(quadObj, radius, radius, height, slices, stacks); + } + public void glutWireCube(float size) { drawBox(GLU.getCurrentGL(), size, GL.GL_LINE_LOOP); } @@ -428,6 +482,46 @@ public class GLUT { return length; } + /** + This function draws a wireframe dodecahedron whose + facets are rhombic and + whose vertices are at unit radius. + No facet lies normal to any coordinate axes. + The polyhedron is centered at the origin. + */ + public void glutWireRhombicDodecahedron() { + GL gl = glu.getCurrentGL(); + for( int i = 0; i < 12; i++ ) { + gl.glBegin( GL.GL_LINE_LOOP ); + gl.glNormal3dv( rdod_n[ i ],0 ); + gl.glVertex3dv( rdod_r[ rdod_v[ i ][ 0 ] ],0 ); + gl.glVertex3dv( rdod_r[ rdod_v[ i ][ 1 ] ],0 ); + gl.glVertex3dv( rdod_r[ rdod_v[ i ][ 2 ] ],0 ); + gl.glVertex3dv( rdod_r[ rdod_v[ i ][ 3 ] ],0 ); + gl.glEnd( ); + } + } + + /** + This function draws a solid-shaded dodecahedron + whose facets are rhombic and + whose vertices are at unit radius. + No facet lies normal to any coordinate axes. + The polyhedron is centered at the origin. + */ + public void glutSolidRhombicDodecahedron() { + GL gl = glu.getCurrentGL(); + gl.glBegin( GL.GL_QUADS ); + for( int i = 0; i < 12; i++ ) { + gl.glNormal3dv( rdod_n[ i ],0 ); + gl.glVertex3dv( rdod_r[ rdod_v[ i ][ 0 ] ],0 ); + gl.glVertex3dv( rdod_r[ rdod_v[ i ][ 1 ] ],0 ); + gl.glVertex3dv( rdod_r[ rdod_v[ i ][ 2 ] ],0 ); + gl.glVertex3dv( rdod_r[ rdod_v[ i ][ 3 ] ],0 ); + } + gl.glEnd( ); + } + //---------------------------------------------------------------------- // Internals only below this point // @@ -783,6 +877,58 @@ public class GLUT { } } + /* rhombic dodecahedron data: */ + + private static final double rdod_r[][] = + { + { 0.0, 0.0, 1.0 }, + { 0.707106781187, 0.000000000000, 0.5 }, + { 0.000000000000, 0.707106781187, 0.5 }, + { -0.707106781187, 0.000000000000, 0.5 }, + { 0.000000000000, -0.707106781187, 0.5 }, + { 0.707106781187, 0.707106781187, 0.0 }, + { -0.707106781187, 0.707106781187, 0.0 }, + { -0.707106781187, -0.707106781187, 0.0 }, + { 0.707106781187, -0.707106781187, 0.0 }, + { 0.707106781187, 0.000000000000, -0.5 }, + { 0.000000000000, 0.707106781187, -0.5 }, + { -0.707106781187, 0.000000000000, -0.5 }, + { 0.000000000000, -0.707106781187, -0.5 }, + { 0.0, 0.0, -1.0 } + }; + + private static final int rdod_v[][] = + { + { 0, 1, 5, 2 }, + { 0, 2, 6, 3 }, + { 0, 3, 7, 4 }, + { 0, 4, 8, 1 }, + { 5, 10, 6, 2 }, + { 6, 11, 7, 3 }, + { 7, 12, 8, 4 }, + { 8, 9, 5, 1 }, + { 5, 9, 13, 10 }, + { 6, 10, 13, 11 }, + { 7, 11, 13, 12 }, + { 8, 12, 13, 9 } + }; + + private static final double rdod_n[][] = + { + { 0.353553390594, 0.353553390594, 0.5 }, + { -0.353553390594, 0.353553390594, 0.5 }, + { -0.353553390594, -0.353553390594, 0.5 }, + { 0.353553390594, -0.353553390594, 0.5 }, + { 0.000000000000, 1.000000000000, 0.0 }, + { -1.000000000000, 0.000000000000, 0.0 }, + { 0.000000000000, -1.000000000000, 0.0 }, + { 1.000000000000, 0.000000000000, 0.0 }, + { 0.353553390594, 0.353553390594, -0.5 }, + { -0.353553390594, 0.353553390594, -0.5 }, + { -0.353553390594, -0.353553390594, -0.5 }, + { 0.353553390594, -0.353553390594, -0.5 } + }; + /* tetrahedron data: */ private static final float T = 1.73205080756887729f; |