public code v1

plugins/afryca.twotuple/.classpath

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+<?xml version="1.0" encoding="UTF-8"?>
+<classpath>
+	<classpathentry kind="con" path="org.eclipse.jdt.launching.JRE_CONTAINER/org.eclipse.jdt.internal.debug.ui.launcher.StandardVMType/JavaSE-1.8"/>
+	<classpathentry kind="con" path="org.eclipse.pde.core.requiredPlugins"/>
+	<classpathentry kind="src" path="src"/>
+	<classpathentry kind="output" path="bin"/>
+</classpath>

plugins/afryca.twotuple/.gitignore

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+/bin/

plugins/afryca.twotuple/.project

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+<?xml version="1.0" encoding="UTF-8"?>
+<projectDescription>
+	<name>afryca.twotuple</name>
+	<comment></comment>
+	<projects>
+	</projects>
+	<buildSpec>
+		<buildCommand>
+			<name>org.eclipse.jdt.core.javabuilder</name>
+			<arguments>
+			</arguments>
+		</buildCommand>
+		<buildCommand>
+			<name>org.eclipse.pde.ManifestBuilder</name>
+			<arguments>
+			</arguments>
+		</buildCommand>
+		<buildCommand>
+			<name>org.eclipse.pde.SchemaBuilder</name>
+			<arguments>
+			</arguments>
+		</buildCommand>
+		<buildCommand>
+			<name>org.eclipse.m2e.core.maven2Builder</name>
+			<arguments>
+			</arguments>
+		</buildCommand>
+	</buildSpec>
+	<natures>
+		<nature>org.eclipse.m2e.core.maven2Nature</nature>
+		<nature>org.eclipse.pde.PluginNature</nature>
+		<nature>org.eclipse.jdt.core.javanature</nature>
+	</natures>
+</projectDescription>

plugins/afryca.twotuple/.settings/org.eclipse.jdt.core.prefs

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+eclipse.preferences.version=1
+org.eclipse.jdt.core.compiler.codegen.inlineJsrBytecode=enabled
+org.eclipse.jdt.core.compiler.codegen.targetPlatform=1.8
+org.eclipse.jdt.core.compiler.compliance=1.8
+org.eclipse.jdt.core.compiler.problem.assertIdentifier=error
+org.eclipse.jdt.core.compiler.problem.enumIdentifier=error
+org.eclipse.jdt.core.compiler.source=1.8

plugins/afryca.twotuple/.settings/org.eclipse.m2e.core.prefs

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+activeProfiles=
+eclipse.preferences.version=1
+resolveWorkspaceProjects=true
+version=1

plugins/afryca.twotuple/META-INF/MANIFEST.MF

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+Manifest-Version: 1.0
+Bundle-ManifestVersion: 2
+Bundle-Name: %Bundle-Name
+Bundle-SymbolicName: afryca.twotuple
+Bundle-Version: 1.0.0.qualifier
+Bundle-RequiredExecutionEnvironment: JavaSE-1.8
+Require-Bundle: afryca.domain.fuzzyset;bundle-version="1.0.0"
+Export-Package: afryca.twotuple
+Automatic-Module-Name: afryca.twotuple

plugins/afryca.twotuple/OSGI-INF/l10n/bundle.properties

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+#Properties file for afryca.twotuple
+Bundle-Name = 2-tuple

plugins/afryca.twotuple/build.properties

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+source.. = src/
+output.. = bin/
+bin.includes = META-INF/,\
+               .,\
+               OSGI-INF/l10n/bundle.properties,\
+               OSGI-INF/

plugins/afryca.twotuple/src/afryca/twotuple/TwoTuple.java

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+package afryca.twotuple;
+
+import afryca.domain.fuzzyset.FuzzySet;
+import afryca.domain.fuzzyset.function.types.TrapezoidalFunction;
+import afryca.domain.fuzzyset.labelset.Label;
+import afryca.twotuple.i18n.Messages;
+import afryca.valueforcer.ValueForcer;
+
+public class TwoTuple {
+	
+	private Label label;
+	private float alpha;
+	private FuzzySet domain;
+	
+	public TwoTuple(FuzzySet domain) {
+		setDomain(domain);
+		alpha = 0;
+	}
+	
+	public TwoTuple(FuzzySet domain, Label label) {
+		setDomain(domain);
+		setLabel(label);
+	}
+	
+	public TwoTuple(FuzzySet domain, Label label, float alpha) {
+		setDomain(domain);
+		setLabel(label);
+		setAlpha(alpha);
+	}
+	
+	public void setDomain(FuzzySet domain) {
+		ValueForcer.notNull(domain);
+		this.domain = domain;
+	}
+	
+	public void setLabel(String name) {
+		Label label = domain.getLabelSet().getLabel(name);
+		ValueForcer.notNull(label);
+		this.label = label;
+	}
+	
+	public void setLabel(Label label) {
+		ValueForcer.notNull(label);
+		this.label = label;
+	}
+	
+	public void setLabel(int pos) {
+		Label label = domain.getLabelSet().getLabel(pos);
+		ValueForcer.notNull(label);
+		this.label = label;
+	}
+	
+	public void setAlpha(float alpha) {
+		ValueForcer.inRange(alpha, -0.5, 0.5); //$NON-NLS-1$
+		
+		int pos = domain.getLabelSet().getPos(label);
+		if((pos == 0) && (alpha < 0)) {
+			throw new IllegalArgumentException(Messages.TwoTuple_Invalid_alpha_value);
+		}
+		
+		if((pos == domain.getLabelSet().getCardinality() - 1) && (alpha > 0)) {
+			throw new IllegalArgumentException(Messages.TwoTuple_Invalid_alpha_value);
+		}
+		
+		this.alpha = alpha;
+	}
+	
+	public Label getLabel() {
+		return label;
+	}
+	
+	public FuzzySet getDomain() {
+		return domain;
+	}
+	
+	public float getAlpha() {
+		return alpha;
+	}
+	
+	public void calculateDelta(float beta) {
+		int labelIndex = (int) Math.round(beta);
+		setLabel(labelIndex);
+		
+		float alpha = beta - labelIndex;
+		
+		if(alpha == 0.5) {
+			labelIndex++;
+			setLabel(labelIndex);
+			alpha = -0.5f;
+		}
+		setAlpha(alpha);
+	}
+	
+	public float calculateInverseDelta() {
+		return alpha + domain.getLabelSet().getPos(label);
+	}
+	
+	public TwoTuple negateValuation() {
+		TwoTuple result = (TwoTuple) clone();
+		
+		if(domain.getLabelSet().getCardinality() > 1) {
+			result.calculateDelta((domain.getLabelSet().getCardinality() - 1) - calculateInverseDelta());
+		}
+		
+		return result;
+	}
+	
+	public TrapezoidalFunction getFuzzyNumber() {
+		double distance = alpha / (domain.getLabelSet().getCardinality() - 1);
+		
+		double a;
+		if(((TrapezoidalFunction) label.getSemantic()).getA() + distance < 0)
+			a = ((TrapezoidalFunction) label.getSemantic()).getA();
+		else
+			a = ((TrapezoidalFunction) label.getSemantic()).getA() + distance;
+		
+		double d;
+		if(((TrapezoidalFunction) label.getSemantic()).getA() + distance > 1)
+			d = ((TrapezoidalFunction) label.getSemantic()).getD();
+		else
+			d = ((TrapezoidalFunction) label.getSemantic()).getD() + distance; 
+		
+		TrapezoidalFunction fuzzyNumber = new TrapezoidalFunction();
+		fuzzyNumber.setLimits(new double[] {a, ((TrapezoidalFunction) label.getSemantic()).getB() + distance, 
+				((TrapezoidalFunction) label.getSemantic()).getC() + distance, d});
+		
+		return fuzzyNumber;
+	}
+	
+	public TwoTuple transform(FuzzySet fuzzySet) {
+		TwoTuple result = null;
+		
+		ValueForcer.notNull(fuzzySet);
+		
+		if (!fuzzySet.isBLTS()) {
+			throw new IllegalArgumentException(Messages.TwoTuple_Not_BLTS_fuzzy_set);
+		}
+		
+		int thisCardinality = domain.getLabelSet().getCardinality();
+		int otherCardinality = fuzzySet.getLabelSet().getCardinality();
+		
+		float numerator = calculateInverseDelta() * ((float) (otherCardinality - 1));
+		float denominator = (float) (thisCardinality - 1);
+		
+		float beta = numerator / denominator;
+		
+		result = new TwoTuple(fuzzySet);
+		result.calculateDelta(beta);
+		
+		return result;
+	}
+	
+	public double similarityMeasure(TwoTuple twoTuple) {
+		return 1d - distance(twoTuple);
+	}
+	
+	public double distance(TwoTuple twoTuple) {
+		return Math.abs(this.calculateInverseDelta() - twoTuple.calculateInverseDelta()) / (domain.getLabelSet().getCardinality() - 1);
+	}
+	
+	@Override
+	public String toString() {
+		return ("[" + label + ", " + Math.round(alpha * 10000d) / 10000d + "]" + Messages.TwoTuple_in + domain); //$NON-NLS-1$ //$NON-NLS-2$ //$NON-NLS-3$
+	}
+	
+	public String prettyFormat() {
+		return ("(" + label + ", " + Math.round(alpha * 10000d) / 10000d + ")"); //$NON-NLS-1$ //$NON-NLS-2$ //$NON-NLS-3$
+	}
+	
+	@Override
+	public boolean equals(Object obj) {
+		if (this == obj)
+			return true;
+		if (obj == null)
+			return false;
+		if (getClass() != obj.getClass())
+			return false;
+		TwoTuple other = (TwoTuple) obj;
+		if (domain != other.domain)
+			return false;
+		if (label != other.label)
+			return false;
+		if (alpha != other.alpha)
+			return false;
+		return true;
+	}
+	
+	@Override
+	public int hashCode() {
+		final int prime = 31;
+		int result = 1;
+		result = prime * result + domain.hashCode();
+		result = prime * result + label.hashCode();
+		result = prime * result + Double.hashCode(alpha);
+		return result;
+	}
+	
+	public int compareTo(TwoTuple other) {
+		ValueForcer.notNull(other);
+		ValueForcer.notIllegalElementType(other, new String[] { TwoTuple.class.toString()});
+		
+		if(domain.equals(other.getDomain())) {
+			Label otherLabel = other.label;
+			double otherAlpha = other.alpha;
+			
+			int aux;
+			if((aux = label.compareTo(otherLabel)) == 0) {
+				return Double.compare(alpha, otherAlpha);
+			} else {
+				return aux;
+			}	
+		} else {
+			return 1;
+		}
+	}
+	
+	@Override
+	public Object clone() {
+		return new TwoTuple(this.domain, this.label, this.alpha);
+	}
+}

plugins/afryca.twotuple/src/afryca/twotuple/i18n/Messages.java

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+package afryca.twotuple.i18n;
+
+import org.eclipse.osgi.util.NLS;
+
+public class Messages extends NLS {
+	private static final String BUNDLE_NAME = "afryca.twotuple.i18n.messages"; //$NON-NLS-1$
+	
+	public static String TwoTuple_Different_domains;
+	public static String TwoTuple_in;
+	public static String TwoTuple_Invalid_alpha_value;
+	public static String TwoTuple_Not_BLTS_fuzzy_set;
+	
+	static {
+		// initialize resource bundle
+		NLS.initializeMessages(BUNDLE_NAME, Messages.class);
+	}
+
+	private Messages() {
+	}
+}

plugins/afryca.twotuple/src/afryca/twotuple/i18n/messages.properties

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+TwoTuple_Different_domains=Different domains
+TwoTuple_in=in
+TwoTuple_Invalid_alpha_value=Invalid alpha value
+TwoTuple_Not_BLTS_fuzzy_set=Not BLTS fuzzy set

plugins/afryca.twotuple/target/MANIFEST.MF

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+Manifest-Version: 1.0
+Bundle-ManifestVersion: 2
+Bundle-Name: %Bundle-Name
+Bundle-SymbolicName: afryca.twotuple
+Bundle-Version: 1.0.0.202101221157
+Bundle-RequiredExecutionEnvironment: JavaSE-1.8
+Require-Bundle: afryca.domain.fuzzyset;bundle-version="1.0.0"
+Export-Package: afryca.twotuple
+Automatic-Module-Name: afryca.twotuple
+

plugins/afryca.twotuple/target/classes/afryca/twotuple/i18n/messages.properties

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+TwoTuple_Different_domains=Different domains
+TwoTuple_in=in
+TwoTuple_Invalid_alpha_value=Invalid alpha value
+TwoTuple_Not_BLTS_fuzzy_set=Not BLTS fuzzy set

plugins/afryca.twotuple/target/local-artifacts.properties

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+#Fri Jan 22 13:00:28 CET 2021
+artifact.main=C\:\\Users\\\u00C1lvaro\\Workspaces\\afryca_2020\\afryca\\plugins\\afryca.twotuple\\target\\afryca.twotuple-1.0.0-SNAPSHOT.jar
+artifact.attached.p2artifacts=C\:\\Users\\\u00C1lvaro\\Workspaces\\afryca_2020\\afryca\\plugins\\afryca.twotuple\\target\\p2artifacts.xml
+artifact.attached.p2metadata=C\:\\Users\\\u00C1lvaro\\Workspaces\\afryca_2020\\afryca\\plugins\\afryca.twotuple\\target\\p2content.xml

plugins/afryca.twotuple/target/maven-archiver/pom.properties

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+artifactId=afryca.twotuple
+groupId=afryca.group
+version=1.0.0-SNAPSHOT

plugins/afryca.twotuple/target/p2artifacts.xml

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+<?xml version='1.0' encoding='UTF-8'?>
+<?artifactRepository version='1.1.0'?>
+<artifacts size='1'>
+  <artifact classifier='osgi.bundle' id='afryca.twotuple' version='1.0.0.202101221157'>
+    <properties size='5'>
+      <property name='artifact.size' value='6347'/>
+      <property name='download.size' value='6347'/>
+      <property name='maven-groupId' value='afryca.group'/>
+      <property name='maven-artifactId' value='afryca.twotuple'/>
+      <property name='maven-version' value='1.0.0-SNAPSHOT'/>
+    </properties>
+  </artifact>
+</artifacts>

plugins/afryca.twotuple/target/p2content.xml

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+<?xml version='1.0' encoding='UTF-8'?>
+<units size='1'>
+  <unit id='afryca.twotuple' version='1.0.0.202101221157' singleton='false' generation='2'>
+    <update id='afryca.twotuple' range='[0.0.0,1.0.0.202101221157)' severity='0'/>
+    <properties size='5'>
+      <property name='df_LT.Bundle-Name' value='2-tuple'/>
+      <property name='org.eclipse.equinox.p2.name' value='%Bundle-Name'/>
+      <property name='maven-groupId' value='afryca.group'/>
+      <property name='maven-artifactId' value='afryca.twotuple'/>
+      <property name='maven-version' value='1.0.0-SNAPSHOT'/>
+    </properties>
+    <provides size='6'>
+      <provided namespace='org.eclipse.equinox.p2.iu' name='afryca.twotuple' version='1.0.0.202101221157'/>
+      <provided namespace='osgi.bundle' name='afryca.twotuple' version='1.0.0.202101221157'/>
+      <provided namespace='java.package' name='afryca.twotuple' version='0.0.0'/>
+      <provided namespace='osgi.identity' name='afryca.twotuple' version='1.0.0.202101221157'>
+        <properties size='1'>
+          <property name='type' value='osgi.bundle'/>
+        </properties>
+      </provided>
+      <provided namespace='org.eclipse.equinox.p2.eclipse.type' name='bundle' version='1.0.0'/>
+      <provided namespace='org.eclipse.equinox.p2.localization' name='df_LT' version='1.0.0'/>
+    </provides>
+    <requires size='2'>
+      <required namespace='osgi.bundle' name='afryca.domain.fuzzyset' range='1.0.0'/>
+      <requiredProperties namespace='osgi.ee' match='(&amp;(osgi.ee=JavaSE)(version=1.8))'>
+        <description>
+          afryca.twotuple
+        </description>
+      </requiredProperties>
+    </requires>
+    <artifacts size='1'>
+      <artifact classifier='osgi.bundle' id='afryca.twotuple' version='1.0.0.202101221157'/>
+    </artifacts>
+    <touchpoint id='org.eclipse.equinox.p2.osgi' version='1.0.0'/>
+    <touchpointData size='1'>
+      <instructions size='1'>
+        <instruction key='manifest'>
+          Bundle-SymbolicName: afryca.twotuple&#xA;Bundle-Version: 1.0.0.202101221157&#xA;
+        </instruction>
+      </instructions>
+    </touchpointData>
+  </unit>
+</units>