Package org.gephi.layout.plugin

Examples of org.gephi.layout.plugin.ForceVectorNodeLayoutData

60
61
62
63
64
65
66
67
    }

    public void initAlgo() {
        this.graph = graphModel.getHierarchicalGraphVisible();
        for (Node n : graph.getNodes()) {
            n.getNodeData().setLayoutData(new ForceVectorNodeLayoutData());
        }
    }
View Full Code Here
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
        Node[] nodes = graph.getNodes().toArray();
        Edge[] edges = graph.getEdgesAndMetaEdges().toArray();

        for (Node n : nodes) {
            if (n.getNodeData().getLayoutData() == null || !(n.getNodeData().getLayoutData() instanceof ForceVectorNodeLayoutData)) {
                n.getNodeData().setLayoutData(new ForceVectorNodeLayoutData());
            }
            ForceVectorNodeLayoutData layoutData = n.getNodeData().getLayoutData();
            layoutData.dx = 0;
            layoutData.dy = 0;
        }

        float maxDisplace = (float) (Math.sqrt(AREA_MULTIPLICATOR * area) / 10f);          // Déplacement limite : on peut le calibrer...
        float k = (float) Math.sqrt((AREA_MULTIPLICATOR * area) / (1f + nodes.length));    // La variable k, l'idée principale du layout.

        for (Node N1 : nodes) {
            for (Node N2 : nodes) {  // On fait toutes les paires de noeuds
                if (N1 != N2) {
                    float xDist = N1.getNodeData().x() - N2.getNodeData().x();  // distance en x entre les deux noeuds
                    float yDist = N1.getNodeData().y() - N2.getNodeData().y();
                    float dist = (float) Math.sqrt(xDist * xDist + yDist * yDist);  // distance tout court

                    if (dist > 0) {
                        float repulsiveF = k * k / dist;      // Force de répulsion
                        ForceVectorNodeLayoutData layoutData = N1.getNodeData().getLayoutData();
                        layoutData.dx += xDist / dist * repulsiveF;    // on l'applique...
                        layoutData.dy += yDist / dist * repulsiveF;
                    }
                }
            }
        }
        for (Edge E : edges) {
            // Idem, pour tous les noeuds on applique la force d'attraction

            Node Nf = E.getSource();
            Node Nt = E.getTarget();

            float xDist = Nf.getNodeData().x() - Nt.getNodeData().x();
            float yDist = Nf.getNodeData().y() - Nt.getNodeData().y();
            float dist = (float) Math.sqrt(xDist * xDist + yDist * yDist);

            float attractiveF = dist * dist / k;

            if (dist > 0) {
                ForceVectorNodeLayoutData sourceLayoutData = Nf.getNodeData().getLayoutData();
                ForceVectorNodeLayoutData targetLayoutData = Nt.getNodeData().getLayoutData();
                sourceLayoutData.dx -= xDist / dist * attractiveF;
                sourceLayoutData.dy -= yDist / dist * attractiveF;
                targetLayoutData.dx += xDist / dist * attractiveF;
                targetLayoutData.dy += yDist / dist * attractiveF;
            }
        }
        // gravity
        for (Node n : nodes) {
            NodeData nodeData = n.getNodeData();
            ForceVectorNodeLayoutData layoutData = nodeData.getLayoutData();
            float d = (float) Math.sqrt(nodeData.x() * nodeData.x() + nodeData.y() * nodeData.y());
            float gf = 0.01f * k * (float) gravity * d;
            layoutData.dx -= gf * nodeData.x() / d;
            layoutData.dy -= gf * nodeData.y() / d;
        }
        // speed
        for (Node n : nodes) {
            ForceVectorNodeLayoutData layoutData = n.getNodeData().getLayoutData();
            layoutData.dx *= speed / SPEED_DIVISOR;
            layoutData.dy *= speed / SPEED_DIVISOR;
        }
        for (Node n : nodes) {
            // Maintenant on applique le déplacement calculé sur les noeuds.
            // nb : le déplacement à chaque passe "instantanné" correspond à la force : c'est une sorte d'accélération.
            ForceVectorNodeLayoutData layoutData = n.getNodeData().getLayoutData();
            float xDist = layoutData.dx;
            float yDist = layoutData.dy;
            float dist = (float) Math.sqrt(layoutData.dx * layoutData.dx + layoutData.dy * layoutData.dy);
            if (dist > 0 && !n.getNodeData().isFixed()) {
                float limitedDist = Math.min(maxDisplace * ((float) speed / SPEED_DIVISOR), dist);
View Full Code Here
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
        Node[] nodes = graph.getNodes().toArray();
        Edge[] edges = graph.getEdgesAndMetaEdges().toArray();

        for (Node n : nodes) {
            if (n.getNodeData().getLayoutData() == null || !(n.getNodeData().getLayoutData() instanceof ForceVectorNodeLayoutData)) {
                n.getNodeData().setLayoutData(new ForceVectorNodeLayoutData());
            }
        }

        for (Node n : nodes) {
            ForceVectorNodeLayoutData layoutData = n.getNodeData().getLayoutData();
            layoutData.old_dx = layoutData.dx;
            layoutData.old_dy = layoutData.dy;
            layoutData.dx *= inertia;
            layoutData.dy *= inertia;
        }
        // repulsion
        if (isAdjustSizes()) {
            for (Node n1 : nodes) {
                for (Node n2 : nodes) {
                    if (n1 != n2) {
                        ForceVectorUtils.fcBiRepulsor_noCollide(n1.getNodeData(), n2.getNodeData(), getRepulsionStrength() * (1 + graph.getDegree(n1)) * (1 + graph.getDegree(n2)));
                    }
                }
            }
        } else {
            for (Node n1 : nodes) {
                for (Node n2 : nodes) {
                    if (n1 != n2) {
                        ForceVectorUtils.fcBiRepulsor(n1.getNodeData(), n2.getNodeData(), getRepulsionStrength() * (1 + graph.getDegree(n1)) * (1 + graph.getDegree(n2)));
                    }
                }
            }
        }
        // attraction
        if (isAdjustSizes()) {
            if (isOutboundAttractionDistribution()) {
                for (Edge e : edges) {
                    Node nf = e.getSource();
                    Node nt = e.getTarget();
                    double bonus = (nf.getNodeData().isFixed() || nt.getNodeData().isFixed()) ? (100) : (1);
                    bonus *= getWeight(e);
                    ForceVectorUtils.fcBiAttractor_noCollide(nf.getNodeData(), nt.getNodeData(), bonus * getAttractionStrength() / (1 + graph.getDegree(nf)));
                }
            } else {
                for (Edge e : edges) {
                    Node nf = e.getSource();
                    Node nt = e.getTarget();
                    double bonus = (nf.getNodeData().isFixed() || nt.getNodeData().isFixed()) ? (100) : (1);
                    bonus *= getWeight(e);
                    ForceVectorUtils.fcBiAttractor_noCollide(nf.getNodeData(), nt.getNodeData(), bonus * getAttractionStrength());
                }
            }
        } else {
            if (isOutboundAttractionDistribution()) {
                for (Edge e : edges) {
                    Node nf = e.getSource();
                    Node nt = e.getTarget();
                    double bonus = (nf.getNodeData().isFixed() || nt.getNodeData().isFixed()) ? (100) : (1);
                    bonus *= getWeight(e);
                    ForceVectorUtils.fcBiAttractor(nf.getNodeData(), nt.getNodeData(), bonus * getAttractionStrength() / (1 + graph.getDegree(nf)));
                }
            } else {
                for (Edge e : edges) {
                    Node nf = e.getSource();
                    Node nt = e.getTarget();
                    double bonus = (nf.getNodeData().isFixed() || nt.getNodeData().isFixed()) ? (100) : (1);
                    bonus *= getWeight(e);
                    ForceVectorUtils.fcBiAttractor(nf.getNodeData(), nt.getNodeData(), bonus * getAttractionStrength());
                }
            }
        }
        // gravity
        for (Node n : nodes) {

            float nx = n.getNodeData().x();
            float ny = n.getNodeData().y();
            double d = 0.0001 + Math.sqrt(nx * nx + ny * ny);
            double gf = 0.0001 * getGravity() * d;
            ForceVectorNodeLayoutData layoutData = n.getNodeData().getLayoutData();
            layoutData.dx -= gf * nx / d;
            layoutData.dy -= gf * ny / d;
        }
        // speed
        if (isFreezeBalance()) {
            for (Node n : nodes) {
                ForceVectorNodeLayoutData layoutData = n.getNodeData().getLayoutData();
                layoutData.dx *= getSpeed() * 10f;
                layoutData.dy *= getSpeed() * 10f;
            }
        } else {
            for (Node n : nodes) {
                ForceVectorNodeLayoutData layoutData = n.getNodeData().getLayoutData();
                layoutData.dx *= getSpeed();
                layoutData.dy *= getSpeed();
            }
        }
        // apply forces
        for (Node n : nodes) {
            NodeData nData = n.getNodeData();
            ForceVectorNodeLayoutData nLayout = nData.getLayoutData();
            if (!nData.isFixed()) {
                double d = 0.0001 + Math.sqrt(nLayout.dx * nLayout.dx + nLayout.dy * nLayout.dy);
                float ratio;
                if (isFreezeBalance()) {
                    nLayout.freeze = (float) (getFreezeInertia() * nLayout.freeze + (1 - getFreezeInertia()) * 0.1 * getFreezeStrength() * (Math.sqrt(Math.sqrt((nLayout.old_dx - nLayout.dx) * (nLayout.old_dx - nLayout.dx) + (nLayout.old_dy - nLayout.dy) * (nLayout.old_dy - nLayout.dy)))));
View Full Code Here
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
        Node[] nodes = graph.getNodes().toArray();
        Edge[] edges = graph.getEdges().toArray();

        for (Node n : nodes) {
            if (n.getLayoutData() == null || !(n.getLayoutData() instanceof ForceVectorNodeLayoutData)) {
                n.setLayoutData(new ForceVectorNodeLayoutData());
            }
        }

        for (Node n : nodes) {
            ForceVectorNodeLayoutData layoutData = n.getLayoutData();
            layoutData.old_dx = layoutData.dx;
            layoutData.old_dy = layoutData.dy;
            layoutData.dx *= inertia;
            layoutData.dy *= inertia;
        }
        // repulsion
        if (isAdjustSizes()) {
            for (Node n1 : nodes) {
                for (Node n2 : nodes) {
                    if (n1 != n2) {
                        ForceVectorUtils.fcBiRepulsor_noCollide(n1, n2, getRepulsionStrength() * (1 + graph.getDegree(n1)) * (1 + graph.getDegree(n2)));
                    }
                }
            }
        } else {
            for (Node n1 : nodes) {
                for (Node n2 : nodes) {
                    if (n1 != n2) {
                        ForceVectorUtils.fcBiRepulsor(n1, n2, getRepulsionStrength() * (1 + graph.getDegree(n1)) * (1 + graph.getDegree(n2)));
                    }
                }
            }
        }
        // attraction
        if (isAdjustSizes()) {
            if (isOutboundAttractionDistribution()) {
                for (Edge e : edges) {
                    Node nf = e.getSource();
                    Node nt = e.getTarget();
                    double bonus = (nf.isFixed() || nt.isFixed()) ? (100) : (1);
                    bonus *= e.getWeight();
                    ForceVectorUtils.fcBiAttractor_noCollide(nf, nt, bonus * getAttractionStrength() / (1 + graph.getDegree(nf)));
                }
            } else {
                for (Edge e : edges) {
                    Node nf = e.getSource();
                    Node nt = e.getTarget();
                    double bonus = (nf.isFixed() || nt.isFixed()) ? (100) : (1);
                    bonus *= e.getWeight();
                    ForceVectorUtils.fcBiAttractor_noCollide(nf, nt, bonus * getAttractionStrength());
                }
            }
        } else {
            if (isOutboundAttractionDistribution()) {
                for (Edge e : edges) {
                    Node nf = e.getSource();
                    Node nt = e.getTarget();
                    double bonus = (nf.isFixed() || nt.isFixed()) ? (100) : (1);
                    bonus *= e.getWeight();
                    ForceVectorUtils.fcBiAttractor(nf, nt, bonus * getAttractionStrength() / (1 + graph.getDegree(nf)));
                }
            } else {
                for (Edge e : edges) {
                    Node nf = e.getSource();
                    Node nt = e.getTarget();
                    double bonus = (nf.isFixed() || nt.isFixed()) ? (100) : (1);
                    bonus *= e.getWeight();
                    ForceVectorUtils.fcBiAttractor(nf, nt, bonus * getAttractionStrength());
                }
            }
        }
        // gravity
        for (Node n : nodes) {

            float nx = n.x();
            float ny = n.y();
            double d = 0.0001 + Math.sqrt(nx * nx + ny * ny);
            double gf = 0.0001 * getGravity() * d;
            ForceVectorNodeLayoutData layoutData = n.getLayoutData();
            layoutData.dx -= gf * nx / d;
            layoutData.dy -= gf * ny / d;
        }
        // speed
        if (isFreezeBalance()) {
            for (Node n : nodes) {
                ForceVectorNodeLayoutData layoutData = n.getLayoutData();
                layoutData.dx *= getSpeed() * 10f;
                layoutData.dy *= getSpeed() * 10f;
            }
        } else {
            for (Node n : nodes) {
                ForceVectorNodeLayoutData layoutData = n.getLayoutData();
                layoutData.dx *= getSpeed();
                layoutData.dy *= getSpeed();
            }
        }
        // apply forces
        for (Node n : nodes) {
            ForceVectorNodeLayoutData nLayout = n.getLayoutData();
            if (!n.isFixed()) {
                double d = 0.0001 + Math.sqrt(nLayout.dx * nLayout.dx + nLayout.dy * nLayout.dy);
                float ratio;
                if (isFreezeBalance()) {
                    nLayout.freeze = (float) (getFreezeInertia() * nLayout.freeze + (1 - getFreezeInertia()) * 0.1 * getFreezeStrength() * (Math.sqrt(Math.sqrt((nLayout.old_dx - nLayout.dx) * (nLayout.old_dx - nLayout.dx) + (nLayout.old_dy - nLayout.dy) * (nLayout.old_dy - nLayout.dy)))));
View Full Code Here
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
        Node[] nodes = graph.getNodes().toArray();
        Edge[] edges = graph.getEdges().toArray();

        for (Node n : nodes) {
            if (n.getLayoutData() == null || !(n.getLayoutData() instanceof ForceVectorNodeLayoutData)) {
                n.setLayoutData(new ForceVectorNodeLayoutData());
            }
            ForceVectorNodeLayoutData layoutData = n.getLayoutData();
            layoutData.dx = 0;
            layoutData.dy = 0;
        }

        float maxDisplace = (float) (Math.sqrt(AREA_MULTIPLICATOR * area) / 10f);          // Déplacement limite : on peut le calibrer...
        float k = (float) Math.sqrt((AREA_MULTIPLICATOR * area) / (1f + nodes.length));    // La variable k, l'idée principale du layout.

        for (Node N1 : nodes) {
            for (Node N2 : nodes) {  // On fait toutes les paires de noeuds
                if (N1 != N2) {
                    float xDist = N1.x() - N2.x();  // distance en x entre les deux noeuds
                    float yDist = N1.y() - N2.y();
                    float dist = (float) Math.sqrt(xDist * xDist + yDist * yDist);  // distance tout court

                    if (dist > 0) {
                        float repulsiveF = k * k / dist;      // Force de répulsion
                        ForceVectorNodeLayoutData layoutData = N1.getLayoutData();
                        layoutData.dx += xDist / dist * repulsiveF;    // on l'applique...
                        layoutData.dy += yDist / dist * repulsiveF;
                    }
                }
            }
        }
        for (Edge E : edges) {
            // Idem, pour tous les noeuds on applique la force d'attraction

            Node Nf = E.getSource();
            Node Nt = E.getTarget();

            float xDist = Nf.x() - Nt.x();
            float yDist = Nf.y() - Nt.y();
            float dist = (float) Math.sqrt(xDist * xDist + yDist * yDist);

            float attractiveF = dist * dist / k;

            if (dist > 0) {
                ForceVectorNodeLayoutData sourceLayoutData = Nf.getLayoutData();
                ForceVectorNodeLayoutData targetLayoutData = Nt.getLayoutData();
                sourceLayoutData.dx -= xDist / dist * attractiveF;
                sourceLayoutData.dy -= yDist / dist * attractiveF;
                targetLayoutData.dx += xDist / dist * attractiveF;
                targetLayoutData.dy += yDist / dist * attractiveF;
            }
        }
        // gravity
        for (Node n : nodes) {
            ForceVectorNodeLayoutData layoutData = n.getLayoutData();
            float d = (float) Math.sqrt(n.x() * n.x() + n.y() * n.y());
            float gf = 0.01f * k * (float) gravity * d;
            layoutData.dx -= gf * n.x() / d;
            layoutData.dy -= gf * n.y() / d;
        }
        // speed
        for (Node n : nodes) {
            ForceVectorNodeLayoutData layoutData = n.getLayoutData();
            layoutData.dx *= speed / SPEED_DIVISOR;
            layoutData.dy *= speed / SPEED_DIVISOR;
        }
        for (Node n : nodes) {
            // Maintenant on applique le déplacement calculé sur les noeuds.
            // nb : le déplacement à chaque passe "instantanné" correspond à la force : c'est une sorte d'accélération.
            ForceVectorNodeLayoutData layoutData = n.getLayoutData();
            float xDist = layoutData.dx;
            float yDist = layoutData.dy;
            float dist = (float) Math.sqrt(layoutData.dx * layoutData.dx + layoutData.dy * layoutData.dy);
            if (dist > 0 && !n.isFixed()) {
                float limitedDist = Math.min(maxDisplace * ((float) speed / SPEED_DIVISOR), dist);
View Full Code Here
TOP

Related Classes of org.gephi.layout.plugin.ForceVectorNodeLayoutData

  • org.gephi.layout.plugin.forceAtlas.ForceAtlasLayout
  • org.gephi.layout.plugin.fruchterman.FruchtermanReingold
    • Copyright © 2018 www.massapicom. All rights reserved.
    All source code are property of their respective owners. Java is a trademark of Sun Microsystems, Inc and owned by ORACLE Inc. Contact coftware#gmail.com.