From 41cd6c47b23975098cd155517790e018670785e7 Mon Sep 17 00:00:00 2001 From: Kenneth Russel Date: Mon, 15 Jun 2009 23:12:27 +0000 Subject: Copied JOGL_2_SANDBOX r350 on to trunk; JOGL_2_SANDBOX branch is now closed git-svn-id: file:///usr/local/projects/SUN/JOGL/git-svn/../svn-server-sync/jogl-demos/trunk@352 3298f667-5e0e-4b4a-8ed4-a3559d26a5f4 --- src/gleem/ManipPartTriBased.java | 292 +++++++++++++++++++++++++++++++++++++++ 1 file changed, 292 insertions(+) create mode 100644 src/gleem/ManipPartTriBased.java (limited to 'src/gleem/ManipPartTriBased.java') diff --git a/src/gleem/ManipPartTriBased.java b/src/gleem/ManipPartTriBased.java new file mode 100644 index 0000000..195f613 --- /dev/null +++ b/src/gleem/ManipPartTriBased.java @@ -0,0 +1,292 @@ +/* + * gleem -- OpenGL Extremely Easy-To-Use Manipulators. + * Copyright (C) 1998-2003 Kenneth B. Russell (kbrussel@alum.mit.edu) + * + * Copying, distribution and use of this software in source and binary + * forms, with or without modification, is permitted provided that the + * following conditions are met: + * + * Distributions of source code must reproduce the copyright notice, + * this list of conditions and the following disclaimer in the source + * code header files; and Distributions of binary code must reproduce + * the copyright notice, this list of conditions and the following + * disclaimer in the documentation, Read me file, license file and/or + * other materials provided with the software distribution. + * + * The names of Sun Microsystems, Inc. ("Sun") and/or the copyright + * holder may not be used to endorse or promote products derived from + * this software without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED "AS IS," WITHOUT A WARRANTY OF ANY + * KIND. ALL EXPRESS OR IMPLIED CONDITIONS, REPRESENTATIONS AND + * WARRANTIES, INCLUDING ANY IMPLIED WARRANTY OF MERCHANTABILITY, + * FITNESS FOR A PARTICULAR PURPOSE, NON-INTERFERENCE, ACCURACY OF + * INFORMATIONAL CONTENT OR NON-INFRINGEMENT, ARE HEREBY EXCLUDED. THE + * COPYRIGHT HOLDER, SUN AND SUN'S LICENSORS SHALL NOT BE LIABLE FOR + * ANY DAMAGES SUFFERED BY LICENSEE AS A RESULT OF USING, MODIFYING OR + * DISTRIBUTING THIS SOFTWARE OR ITS DERIVATIVES. IN NO EVENT WILL THE + * COPYRIGHT HOLDER, SUN OR SUN'S LICENSORS BE LIABLE FOR ANY LOST + * REVENUE, PROFIT OR DATA, OR FOR DIRECT, INDIRECT, SPECIAL, + * CONSEQUENTIAL, INCIDENTAL OR PUNITIVE DAMAGES, HOWEVER CAUSED AND + * REGARDLESS OF THE THEORY OF LIABILITY, ARISING OUT OF THE USE OF OR + * INABILITY TO USE THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY + * OF SUCH DAMAGES. YOU ACKNOWLEDGE THAT THIS SOFTWARE IS NOT + * DESIGNED, LICENSED OR INTENDED FOR USE IN THE DESIGN, CONSTRUCTION, + * OPERATION OR MAINTENANCE OF ANY NUCLEAR FACILITY. THE COPYRIGHT + * HOLDER, SUN AND SUN'S LICENSORS DISCLAIM ANY EXPRESS OR IMPLIED + * WARRANTY OF FITNESS FOR SUCH USES. + */ + +package gleem; + +import java.util.*; + +import gleem.linalg.*; +import javax.media.opengl.*; + +/** Triangle-based manipulator part. This is the base class for most + of the ManipParts that GLEEM uses internally. You can feel free to + subclass this if you want to replace geometry in the manipulators, + or re-derive from ManipPart. See ManipPartLineSeg for an example. */ + +public class ManipPartTriBased extends ManipPart { + private Vec3f color; + private Vec3f highlightColor; + private boolean highlighted; + private boolean pickable; + private boolean visible; + /** Direct references down to subclass-specific data */ + private Vec3f[] vertices; + private Vec3f[] normals; + private int[] vertexIndices; + private int[] normalIndices; + /** Current transformation matrix */ + private Mat4f xform; + /** Transformed vertices and normals */ + private Vec3f[] curVertices; + private Vec3f[] curNormals; + + public ManipPartTriBased() { + color = new Vec3f(0.8f, 0.8f, 0.8f); + highlightColor = new Vec3f(0.8f, 0.8f, 0.2f); + highlighted = false; + pickable = true; + visible = true; + vertices = null; + normals = null; + vertexIndices = null; + normalIndices = null; + xform = new Mat4f(); + xform.makeIdent(); + curVertices = null; + } + + /** Default color is (0.8, 0.8, 0.8) */ + public void setColor(Vec3f color) { + this.color.set(color); + } + + public Vec3f getColor() { + return new Vec3f(color); + } + + /** Default highlight color is (0.8, 0.8, 0) */ + public void setHighlightColor(Vec3f highlightColor) { + this.highlightColor.set(highlightColor); + } + + public Vec3f getHighlightColor() { + return new Vec3f(highlightColor); + } + + public void intersectRay(Vec3f rayStart, + Vec3f rayDirection, + List results, + Manip caller) { + consistencyCheck(); + if (!pickable) { + return; + } + + IntersectionPoint intPt = new IntersectionPoint(); + HitPoint hitPt = new HitPoint(); + hitPt.manipulator = caller; + hitPt.manipPart = this; + for (int i = 0; i < vertexIndices.length; i+=3) { + int i0 = vertexIndices[i]; + int i1 = vertexIndices[i+1]; + int i2 = vertexIndices[i+2]; + if (RayTriangleIntersection.intersectRayWithTriangle(rayStart, + rayDirection, + curVertices[i0], + curVertices[i1], + curVertices[i2], + intPt) + == RayTriangleIntersection.INTERSECTION) { + // Check for intersections behind the ray + if (intPt.getT() >= 0) { + hitPt.rayStart = rayStart; + hitPt.rayDirection = rayDirection; + hitPt.intPt = intPt; + results.add(hitPt); + } + } + } + } + + public void setTransform(Mat4f xform) { + this.xform.set(xform); + recalcVertices(); + } + + public void highlight() { + highlighted = true; + } + + public void clearHighlight() { + highlighted = false; + } + + /** Default is pickable */ + public void setPickable(boolean pickable) { + this.pickable = pickable; + } + + public boolean getPickable() { + return pickable; + } + + /** Default is visible */ + public void setVisible(boolean visible) { + this.visible = visible; + } + + public boolean getVisible() { + return visible; + } + + public void render(GL2 gl) { + if (!visible) + return; + boolean lightingOn = true; + // FIXME: this is too expensive; figure out another way + // if (glIsEnabled(GL2ES1.GL_LIGHTING)) + // lightingOn = true; + + if (lightingOn) { + gl.glEnable(GL2ES1.GL_COLOR_MATERIAL); + gl.glColorMaterial(GL.GL_FRONT_AND_BACK, GL2ES1.GL_AMBIENT_AND_DIFFUSE); + } + gl.glBegin(GL.GL_TRIANGLES); + if (highlighted) + gl.glColor3f(highlightColor.x(), highlightColor.y(), highlightColor.z()); + else + gl.glColor3f(color.x(), color.y(), color.z()); + int i = 0; + while (i < vertexIndices.length) { + Vec3f n0 = curNormals[normalIndices[i]]; + Vec3f v0 = curVertices[vertexIndices[i]]; + gl.glNormal3f(n0.x(), n0.y(), n0.z()); + gl.glVertex3f(v0.x(), v0.y(), v0.z()); + i++; + + Vec3f n1 = curNormals[normalIndices[i]]; + Vec3f v1 = curVertices[vertexIndices[i]]; + gl.glNormal3f(n1.x(), n1.y(), n1.z()); + gl.glVertex3f(v1.x(), v1.y(), v1.z()); + i++; + + Vec3f n2 = curNormals[normalIndices[i]]; + Vec3f v2 = curVertices[vertexIndices[i]]; + gl.glNormal3f(n2.x(), n2.y(), n2.z()); + gl.glVertex3f(v2.x(), v2.y(), v2.z()); + i++; + } + gl.glEnd(); + if (lightingOn) + gl.glDisable(GL2ES1.GL_COLOR_MATERIAL); + } + + //---------------------------------------------------------------------- + // Used by subclasses to set up vertex, normals, and vertex and + // normal indices. + // + + protected void setVertices(Vec3f[] vertices) { + this.vertices = vertices; + } + + protected Vec3f[] getVertices() { + return vertices; + } + + protected void setNormals(Vec3f[] normals) { + this.normals = normals; + } + + protected Vec3f[] getNormals() { + return normals; + } + + protected void setVertexIndices(int[] vertexIndices) { + this.vertexIndices = vertexIndices; + } + + protected int[] getVertexIndices() { + return vertexIndices; + } + + protected void setNormalIndices(int[] normalIndices) { + this.normalIndices = normalIndices; + } + + protected int[] getNormalIndices() { + return normalIndices; + } + + //---------------------------------------------------------------------- + // Internals only below this point + // + + private void consistencyCheck() { + if (vertexIndices.length != normalIndices.length) { + throw new RuntimeException("vertexIndices.length != normalIndices.length"); + } + + if ((vertexIndices.length % 3) != 0) { + throw new RuntimeException("(vertexIndices % 3) != 0"); + } + + if ((curVertices != null) && + (vertices.length != curVertices.length)) { + throw new RuntimeException("vertices.length != curVertices.length"); + } + } + + private void recalcVertices() { + if ((curVertices == null) || + (curVertices.length != vertices.length)) { + curVertices = new Vec3f[vertices.length]; + for (int i = 0; i < vertices.length; i++) { + curVertices[i] = new Vec3f(); + } + } + + for (int i = 0; i < vertices.length; i++) { + xform.xformPt(vertices[i], curVertices[i]); + } + + if ((curNormals == null) || + (curNormals.length != normals.length)) { + curNormals = new Vec3f[normals.length]; + for (int i = 0; i < normals.length; i++) { + curNormals[i] = new Vec3f(); + } + } + + for (int i = 0; i < normals.length; i++) { + xform.xformDir(normals[i], curNormals[i]); + curNormals[i].normalize(); + } + } +} -- cgit v1.2.3