1 package org.djunits.value.vdouble.scalar;
2
3 import java.util.regex.Matcher;
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5 import org.djunits.unit.LengthUnit;
6 import org.djunits.unit.PositionUnit;
7 import org.djunits.unit.Unit;
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34 public class Position extends AbstractDoubleScalarAbs<PositionUnit, Position, LengthUnit, Length>
35 {
36
37 private static final long serialVersionUID = 20150901L;
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39
40 public static final Position ZERO = new Position(0.0, PositionUnit.BASE);
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46
47 public Position(final double value, final PositionUnit unit)
48 {
49 super(value, unit);
50 }
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56 public Position(final Position value)
57 {
58 super(value);
59 }
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61
62 @Override
63 public final Position instantiateAbs(final double value, final PositionUnit unit)
64 {
65 return new Position(value, unit);
66 }
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69 @Override
70 public final Length instantiateRel(final double value, final LengthUnit unit)
71 {
72 return new Length(value, unit);
73 }
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80 public static final Position createSI(final double value)
81 {
82 return new Position(value, PositionUnit.BASE);
83 }
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92 public static Position interpolate(final Position zero, final Position one, final double ratio)
93 {
94 return new Position(zero.getInUnit() * (1 - ratio) + one.getInUnit(zero.getUnit()) * ratio, zero.getUnit());
95 }
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103 public static Position max(final Position a1, final Position a2)
104 {
105 return (a1.gt(a2)) ? a1 : a2;
106 }
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115 public static Position max(final Position a1, final Position a2, final Position... an)
116 {
117 Position maxa = (a1.gt(a2)) ? a1 : a2;
118 for (Position a : an)
119 {
120 if (a.gt(maxa))
121 {
122 maxa = a;
123 }
124 }
125 return maxa;
126 }
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134 public static Position min(final Position a1, final Position a2)
135 {
136 return (a1.lt(a2)) ? a1 : a2;
137 }
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146 public static Position min(final Position a1, final Position a2, final Position... an)
147 {
148 Position mina = (a1.lt(a2)) ? a1 : a2;
149 for (Position a : an)
150 {
151 if (a.lt(mina))
152 {
153 mina = a;
154 }
155 }
156 return mina;
157 }
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167 public static Position valueOf(final String text) throws IllegalArgumentException
168 {
169 if (text == null || text.length() == 0)
170 {
171 throw new IllegalArgumentException("Error parsing Position -- null or empty argument");
172 }
173 Matcher matcher = NUMBER_PATTERN.matcher(text);
174 if (matcher.find())
175 {
176 int index = matcher.end();
177 try
178 {
179 String unitString = text.substring(index).trim();
180 String valueString = text.substring(0, index).trim();
181 for (PositionUnit unit : Unit.getUnits(PositionUnit.class))
182 {
183 if (unit.getDefaultLocaleTextualRepresentations().contains(unitString))
184 {
185 double d = Double.parseDouble(valueString);
186 return new Position(d, unit);
187 }
188 }
189 }
190 catch (Exception exception)
191 {
192 throw new IllegalArgumentException("Error parsing Position from " + text, exception);
193 }
194 }
195 throw new IllegalArgumentException("Error parsing Position from " + text);
196 }
197
198 }