/*
Copyright 2008-2010 Gephi
Authors : Mathieu Bastian <mathieu.bastian@gephi.org>
Website : http://www.gephi.org
This file is part of Gephi.
Gephi is free software: you can redistribute it and/or modify
it under the terms of the GNU Affero General Public License as
published by the Free Software Foundation, either version 3 of the
License, or (at your option) any later version.
Gephi is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU Affero General Public License for more details.
You should have received a copy of the GNU Affero General Public License
along with Gephi. If not, see <http://www.gnu.org/licenses/>.
*/
package org.gephi.visualization.opengl.compatibility.objects;
import javax.media.opengl.GL;
import javax.media.opengl.glu.GLU;
import org.gephi.graph.api.MetaEdge;
import org.gephi.graph.api.NodeData;
import org.gephi.visualization.GraphLimits;
import org.gephi.visualization.VizController;
import org.gephi.visualization.VizModel;
import org.gephi.visualization.apiimpl.ModelImpl;
/**
*
* @author Mathieu Bastian
*/
public class Edge3dModel extends Edge2dModel {
private float[] cameraLocation;
public Edge3dModel() {
super();
cameraLocation = VizController.getInstance().getDrawable().getCameraLocation();
}
@Override
public void display(GL gl, GLU glu, VizModel vizModel) {
if (this.arrow != null) {
this.arrow.setSelected(selected);
}
if (!selected && vizModel.isHideNonSelectedEdges()) {
return;
}
if (selected && vizModel.isAutoSelectNeighbor()) {
ModelImpl m1 = (ModelImpl) obj.getSource().getModel();
ModelImpl m2 = (ModelImpl) obj.getTarget().getModel();
m1.mark = true;
m2.mark = true;
}
//Edge weight
GraphLimits limits = vizModel.getLimits();
float w;
if (obj.getEdge() instanceof MetaEdge) {
float weightRatio;
if (limits.getMinMetaWeight() == limits.getMaxMetaWeight()) {
weightRatio = WEIGHT_MINIMUM / limits.getMinMetaWeight();
} else {
weightRatio = Math.abs((WEIGHT_MAXIMUM - WEIGHT_MINIMUM) / (limits.getMaxMetaWeight() - limits.getMinMetaWeight()));
}
float edgeScale = vizModel.getEdgeScale() * vizModel.getMetaEdgeScale();
w = weight;
w = ((w - limits.getMinMetaWeight()) * weightRatio + WEIGHT_MINIMUM) * edgeScale;
} else {
float weightRatio;
if (limits.getMinWeight() == limits.getMaxWeight()) {
weightRatio = WEIGHT_MINIMUM / limits.getMinWeight();
} else {
weightRatio = Math.abs((WEIGHT_MAXIMUM - WEIGHT_MINIMUM) / (limits.getMaxWeight() - limits.getMinWeight()));
}
float edgeScale = vizModel.getEdgeScale();
w = weight;
w = ((w - limits.getMinWeight()) * weightRatio + WEIGHT_MINIMUM) * edgeScale;
}
//
float x1 = obj.getSource().x();
float x2 = obj.getTarget().x();
float y1 = obj.getSource().y();
float y2 = obj.getTarget().y();
float z1 = obj.getSource().z();
float z2 = obj.getTarget().z();
float t1 = w;
float t2 = w;
//CameraVector, from camera location to any point on the line
float cameraVectorX = x1 - cameraLocation[0];
float cameraVectorY = y1 - cameraLocation[1];
float cameraVectorZ = z1 - cameraLocation[2];
//This code has been replaced by followinf more efficient
//Vec3f edgeVector = new Vec3f(x2 - x1,y2 - y1,z2 - z1);
//Vec3f cameraVector = new Vec3f(drawable.getCameraLocation()[0] - (x2 - x1)/2f,drawable.getCameraLocation()[1] - (y2 - y1)/2f,drawable.getCameraLocation()[2] - (z2 - z1)/2f);
//Vec3f sideVector = edgeVector.cross(cameraVector);
//sideVector.normalize();
//Vector line
float edgeVectorX = x2 - x1;
float edgeVectorY = y2 - y1;
float edgeVectorZ = z2 - z1;
//Cross product
float sideVectorX = edgeVectorY * cameraVectorZ - edgeVectorZ * cameraVectorY;
float sideVectorY = edgeVectorZ * cameraVectorX - edgeVectorX * cameraVectorZ;
float sideVectorZ = edgeVectorX * cameraVectorY - edgeVectorY * cameraVectorX;
//Normalize
float norm = (float) Math.sqrt(sideVectorX * sideVectorX + sideVectorY * sideVectorY + sideVectorZ * sideVectorZ);
if (norm > 0f) // Avoid divizion by zero if cameraVector & sideVector colinear
{
sideVectorX /= norm;
sideVectorY /= norm;
sideVectorZ /= norm;
} else {
sideVectorX = 0f;
sideVectorY = 0f;
sideVectorZ = 0f;
}
float x1Thick = sideVectorX / 2f * t1;
float x2Thick = sideVectorX / 2f * t2;
float y1Thick = sideVectorY / 2f * t1;
float y2Thick = sideVectorY / 2f * t2;
float z1Thick = sideVectorZ / 2f * t1;
float z2Thick = sideVectorZ / 2f * t2;
if (!selected) {
float r;
float g;
float b;
float a;
r = obj.r();
if (r == -1f) {
if (vizModel.isEdgeHasUniColor()) {
float[] uni = vizModel.getEdgeUniColor();
r = uni[0];
g = uni[1];
b = uni[2];
a = uni[3];
} else {
NodeData source = obj.getSource();
r = 0.498f * source.r();
g = 0.498f * source.g();
b = 0.498f * source.b();
a = obj.alpha();
}
} else {
g = 0.498f * obj.g();
b = 0.498f * obj.b();
r *= 0.498f;
a = obj.alpha();
}
if (vizModel.getConfig().isLightenNonSelected()) {
float lightColorFactor = vizModel.getConfig().getLightenNonSelectedFactor();
a = a - (a - 0.01f) * lightColorFactor;
gl.glColor4f(r, g, b, a);
} else {
gl.glColor4f(r, g, b, a);
}
} else {
float r = 0f;
float g = 0f;
float b = 0f;
if (vizModel.isEdgeSelectionColor()) {
ModelImpl m1 = (ModelImpl) obj.getSource().getModel();
ModelImpl m2 = (ModelImpl) obj.getTarget().getModel();
if (m1.isSelected() && m2.isSelected()) {
float[] both = vizModel.getEdgeBothSelectionColor();
r = both[0];
g = both[1];
b = both[2];
} else if (m1.isSelected()) {
float[] out = vizModel.getEdgeOutSelectionColor();
r = out[0];
g = out[1];
b = out[2];
} else if (m2.isSelected()) {
float[] in = vizModel.getEdgeInSelectionColor();
r = in[0];
g = in[1];
b = in[2];
}
} else {
r = obj.r();
if (r == -1f) {
NodeData source = obj.getSource();
r = source.r();
g = source.g();
b = source.b();
} else {
g = obj.g();
b = obj.b();
}
}
gl.glColor4f(r, g, b, 1f);
}
gl.glVertex3f(x1 + x1Thick, y1 + y1Thick, z1 + z1Thick);
gl.glVertex3f(x1 - x1Thick, y1 - y1Thick, z1 - z1Thick);
gl.glVertex3f(x2 - x2Thick, y2 - y2Thick, z2 - z2Thick);
gl.glVertex3f(x2 - x2Thick, y2 - y2Thick, z2 - z2Thick);
gl.glVertex3f(x2 + x2Thick, y2 + y2Thick, z2 + z2Thick);
gl.glVertex3f(x1 + x1Thick, y1 + y1Thick, z1 + z1Thick);
}
}