/*
Copyright 2008-2010 Gephi
Authors : Mathieu Bastian <mathieu.bastian@gephi.org>
Website : http://www.gephi.org
This file is part of Gephi.
DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS HEADER.
Copyright 2011 Gephi Consortium. All rights reserved.
The contents of this file are subject to the terms of either the GNU
General Public License Version 3 only ("GPL") or the Common
Development and Distribution License("CDDL") (collectively, the
"License"). You may not use this file except in compliance with the
License. You can obtain a copy of the License at
http://gephi.org/about/legal/license-notice/
or /cddl-1.0.txt and /gpl-3.0.txt. See the License for the
specific language governing permissions and limitations under the
License. When distributing the software, include this License Header
Notice in each file and include the License files at
/cddl-1.0.txt and /gpl-3.0.txt. If applicable, add the following below the
License Header, with the fields enclosed by brackets [] replaced by
your own identifying information:
"Portions Copyrighted [year] [name of copyright owner]"
If you wish your version of this file to be governed by only the CDDL
or only the GPL Version 3, indicate your decision by adding
"[Contributor] elects to include this software in this distribution
under the [CDDL or GPL Version 3] license." If you do not indicate a
single choice of license, a recipient has the option to distribute
your version of this file under either the CDDL, the GPL Version 3 or
to extend the choice of license to its licensees as provided above.
However, if you add GPL Version 3 code and therefore, elected the GPL
Version 3 license, then the option applies only if the new code is
made subject to such option by the copyright holder.
Contributor(s):
Portions Copyrighted 2011 Gephi Consortium.
*/
package org.gephi.visualization.model.edge;
import com.jogamp.common.nio.Buffers;
import java.nio.FloatBuffer;
import javax.media.opengl.GL2;
import javax.media.opengl.glu.GLU;
import org.gephi.graph.api.Edge;
import org.gephi.graph.api.Node;
import org.gephi.lib.gleem.linalg.Vec3f;
import org.gephi.visualization.GraphLimits;
import org.gephi.visualization.VizModel;
import org.gephi.visualization.model.node.NodeModel;
/**
*
* @author Mathieu Bastian
*/
public class SelfLoop2dModel extends EdgeModel {
private static Vec3f upVector = new Vec3f(0f, 1f, 0f);
private static Vec3f sideVector = new Vec3f(1f, 0f, 0f);
protected static FloatBuffer buffer = Buffers.newDirectFloatBuffer(24);
protected static int segments = 20;
//
protected final NodeModel nodeModel;
public SelfLoop2dModel(Edge edge, NodeModel nodeModel) {
super(edge);
this.nodeModel = nodeModel;
}
@Override
public void display(GL2 gl, GLU glu, VizModel vizModel) {
gl.glEnd();
//Edge weight
GraphLimits limits = vizModel.getLimits();
float weightRatio;
if (limits.getMinWeight() == limits.getMaxWeight()) {
weightRatio = Edge2dModel.WEIGHT_MINIMUM / limits.getMinWeight();
} else {
weightRatio = Math.abs((Edge2dModel.WEIGHT_MAXIMUM - Edge2dModel.WEIGHT_MINIMUM) / (limits.getMaxWeight() - limits.getMinWeight()));
}
float w = (float) edge.getWeight();
float edgeScale = vizModel.getEdgeScale();
w = ((w - limits.getMinWeight()) * weightRatio + Edge2dModel.WEIGHT_MINIMUM) * edgeScale;
//
//Params
Node node = edge.getSource();
float x = node.x();
float y = node.y();
float z = node.z();
//Get thickness points
float baseRightX = x + sideVector.x() * w / 2;
float baseRightY = y + sideVector.y() * w / 2;
float baseRightZ = z + sideVector.z() * w / 2;
float baseLeftX = x - sideVector.x() * w / 2;
float baseLeftY = y - sideVector.y() * w / 2;
float baseLeftZ = z - sideVector.z() * w / 2;
float baseTopX = x + upVector.x() * w / 2;
float baseTopY = y + upVector.y() * w / 2;
float baseTopZ = z + upVector.z() * w / 2;
float baseBottomX = x - upVector.x() * w / 2;
float baseBottomY = y - upVector.y() * w / 2;
float baseBottomZ = z - upVector.z() * w / 2;
//Calculate control points
float height = node.size() * 3;
float controlExterior1X = baseLeftX + upVector.x() * height;
float controlExterior1Y = baseLeftY + upVector.y() * height;
float controlExterior1Z = baseLeftZ + upVector.z() * height;
float controlExterior2X = baseBottomX + sideVector.x() * height;
float controlExterior2Y = baseBottomY + sideVector.y() * height;
float controlExterior2Z = baseBottomZ + sideVector.z() * height;
height /= 1.15f;
float controlInterior1X = baseRightX + upVector.x() * height;
float controlInterior1Y = baseRightY + upVector.y() * height;
float controlInterior1Z = baseRightZ + upVector.z() * height;
float controlInterior2X = baseTopX + sideVector.x() * height;
float controlInterior2Y = baseTopY + sideVector.y() * height;
float controlInterior2Z = baseTopZ + sideVector.z() * height;
//Fill buffer with interior curve
buffer.rewind();
buffer.put(baseRightX);
buffer.put(baseRightY);
buffer.put(baseRightZ);
buffer.put(controlInterior1X);
buffer.put(controlInterior1Y);
buffer.put(controlInterior1Z);
buffer.put(controlInterior2X);
buffer.put(controlInterior2Y);
buffer.put(controlInterior2Z);
buffer.put(baseTopX);
buffer.put(baseTopY);
buffer.put(baseTopZ);
//Fill buffer with exterior curve
buffer.put(baseLeftX);
buffer.put(baseLeftY);
buffer.put(baseLeftZ);
buffer.put(controlExterior1X);
buffer.put(controlExterior1Y);
buffer.put(controlExterior1Z);
buffer.put(controlExterior2X);
buffer.put(controlExterior2Y);
buffer.put(controlExterior2Z);
buffer.put(baseBottomX);
buffer.put(baseBottomY);
buffer.put(baseBottomZ);
buffer.rewind(); //Rewind
//Color
if (!selected) {
float r;
float g;
float b;
float a = edge.alpha();
if (vizModel.isEdgeHasUniColor()) {
float[] uni = vizModel.getEdgeUniColor();
r = uni[0];
g = uni[1];
b = uni[2];
a = uni[3];
} else {
if (a == 0f) {
Node source = edge.getSource();
r = 0.498f * source.r();
g = 0.498f * source.g();
b = 0.498f * source.b();
a = source.alpha();
} else {
g = 0.498f * edge.g();
b = 0.498f * edge.b();
r = 0.498f * edge.r();
a = edge.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()) {
if (nodeModel.isSelected()) {
float[] both = vizModel.getEdgeBothSelectionColor();
r = both[0];
g = both[1];
b = both[2];
}
} else {
if (edge.alpha() == 0f) {
Node source = edge.getSource();
r = source.r();
g = source.g();
b = source.b();
} else {
r = edge.r();
g = edge.g();
b = edge.b();
}
}
gl.glColor4f(r, g, b, 1f);
}
//Display
gl.glMap2f(GL2.GL_MAP2_VERTEX_3, 0, 1, 3, 4, 0, 1, 12, 2, buffer); //Map evaluators
gl.glEnable(GL2.GL_MAP2_VERTEX_3);
gl.glMapGrid2f(segments, 0, 1, 1, 0, 1); //Grid
gl.glEvalMesh2(GL2.GL_FILL, 0, segments, 0, 1); //Display
gl.glDisable(GL2.GL_MAP2_VERTEX_3);
gl.glEnd();
gl.glBegin(GL2.GL_TRIANGLES);
}
@Override
public void displayArrow(GL2 gl, GLU glu, VizModel model) {
}
@Override
public boolean isAutoSelected() {
return nodeModel.isSelected();
}
@Override
public NodeModel getSourceModel() {
return nodeModel;
}
@Override
public NodeModel getTargetModel() {
return nodeModel;
}
}