1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
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
148
149
150
151
152
|
package de.lmu.ifi.dbs.elki.visualization.projector;
/*
This file is part of ELKI:
Environment for Developing KDD-Applications Supported by Index-Structures
Copyright (C) 2015
Ludwig-Maximilians-Universität München
Lehr- und Forschungseinheit für Datenbanksysteme
ELKI Development Team
This program 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.
This program 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 this program. If not, see <http://www.gnu.org/licenses/>.
*/
import de.lmu.ifi.dbs.elki.data.NumberVector;
import de.lmu.ifi.dbs.elki.data.spatial.SpatialComparable;
import de.lmu.ifi.dbs.elki.data.type.TypeUtil;
import de.lmu.ifi.dbs.elki.data.uncertain.UncertainObject;
import de.lmu.ifi.dbs.elki.database.relation.Relation;
import de.lmu.ifi.dbs.elki.database.relation.RelationUtil;
import de.lmu.ifi.dbs.elki.utilities.datastructures.hierarchy.FilteredIter;
import de.lmu.ifi.dbs.elki.utilities.datastructures.hierarchy.Hierarchy;
import de.lmu.ifi.dbs.elki.utilities.optionhandling.AbstractParameterizer;
import de.lmu.ifi.dbs.elki.utilities.optionhandling.OptionID;
import de.lmu.ifi.dbs.elki.utilities.optionhandling.constraints.CommonConstraints;
import de.lmu.ifi.dbs.elki.utilities.optionhandling.parameterization.Parameterization;
import de.lmu.ifi.dbs.elki.utilities.optionhandling.parameters.IntParameter;
import de.lmu.ifi.dbs.elki.visualization.VisualizationTree;
import de.lmu.ifi.dbs.elki.visualization.VisualizerContext;
/**
* Produce scatterplot projections.
*
* @author Erich Schubert
* @since 0.4.0
*
* @apiviz.has ScatterPlotProjector
*/
public class ScatterPlotFactory implements ProjectorFactory {
/**
* Maximum number of dimensions to visualize.
*
* FIXME: add scrolling function for higher dimensionality!
*/
public static final int MAX_DIMENSIONS_DEFAULT = 10;
/**
* Stores the maximum number of dimensions to show.
*/
private int maxdim = MAX_DIMENSIONS_DEFAULT;
/**
* Constructor.
*
* @param maxdim Maximum number of dimensions to show.
*/
public ScatterPlotFactory(int maxdim) {
super();
this.maxdim = maxdim;
}
@Override
public void processNewResult(VisualizerContext context, Object start) {
Hierarchy.Iter<Relation<?>> it = VisualizationTree.filterResults(context, start, Relation.class);
candidate: for(; it.valid(); it.advance()) {
Relation<?> rel = it.get();
final int dim = dimensionality(rel);
if(dim < 1) {
continue;
}
// Do not enable nested relations by default:
Hierarchy.Iter<Relation<?>> it2 = new FilteredIter<>(context.getHierarchy().iterAncestors(rel), Relation.class);
for(; it2.valid(); it2.advance()) {
// Parent relation
final Relation<?> rel2 = (Relation<?>) it2.get();
final int odim = dimensionality(rel2);
if(odim == dim) {
// TODO: add Actions instead?
continue candidate;
}
}
@SuppressWarnings("unchecked")
Relation<SpatialComparable> vrel = (Relation<SpatialComparable>) rel;
ScatterPlotProjector<SpatialComparable> proj = new ScatterPlotProjector<>(vrel, Math.min(maxdim, dim));
context.addVis(vrel, proj);
}
}
private int dimensionality(Relation<?> rel) {
if(TypeUtil.NUMBER_VECTOR_FIELD.isAssignableFromType(rel.getDataTypeInformation())) {
@SuppressWarnings("unchecked")
Relation<NumberVector> vrel = (Relation<NumberVector>) rel;
return RelationUtil.dimensionality(vrel);
}
if(TypeUtil.UNCERTAIN_OBJECT_FIELD.isAssignableFromType(rel.getDataTypeInformation())) {
@SuppressWarnings("unchecked")
Relation<UncertainObject> vrel = (Relation<UncertainObject>) rel;
return RelationUtil.dimensionality(vrel);
}
// TODO: allow other spatial objects of fixed dimensionality!
return 0;
}
/**
* Parameterization class.
*
* @author Erich Schubert
*
* @apiviz.exclude
*/
public static class Parameterizer extends AbstractParameterizer {
/**
* Parameter for the maximum number of dimensions.
*
* <p>
* Code: -vis.maxdim
* </p>
*/
public static final OptionID MAXDIM_ID = new OptionID("vis.maxdim", "Maximum number of dimensions to display.");
/**
* Stores the maximum number of dimensions to show.
*/
private int maxdim = MAX_DIMENSIONS_DEFAULT;
@Override
protected void makeOptions(Parameterization config) {
super.makeOptions(config);
IntParameter maxdimP = new IntParameter(MAXDIM_ID, MAX_DIMENSIONS_DEFAULT);
maxdimP.addConstraint(CommonConstraints.GREATER_EQUAL_ZERO_INT);
if(config.grab(maxdimP)) {
maxdim = maxdimP.intValue();
}
}
@Override
protected ScatterPlotFactory makeInstance() {
return new ScatterPlotFactory(maxdim);
}
}
}
|
