1 package org.djunits.value.vdouble.scalar;
2
3 import java.util.regex.Matcher;
4
5 import org.djunits.unit.AccelerationUnit;
6 import org.djunits.unit.DimensionlessUnit;
7 import org.djunits.unit.DurationUnit;
8 import org.djunits.unit.FlowVolumeUnit;
9 import org.djunits.unit.ForceUnit;
10 import org.djunits.unit.FrequencyUnit;
11 import org.djunits.unit.LengthUnit;
12 import org.djunits.unit.PowerUnit;
13 import org.djunits.unit.SpeedUnit;
14 import org.djunits.unit.Unit;
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40 public class Speed extends AbstractDoubleScalarRel<SpeedUnit, Speed>
41 {
42
43 private static final long serialVersionUID = 20150905L;
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45
46 public static final Speed ZERO = new Speed(0.0, SpeedUnit.SI);
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48
49 @SuppressWarnings("checkstyle:constantname")
50 public static final Speed NaN = new Speed(Double.NaN, SpeedUnit.SI);
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53 public static final Speed POSITIVE_INFINITY = new Speed(Double.POSITIVE_INFINITY, SpeedUnit.SI);
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56 public static final Speed NEGATIVE_INFINITY = new Speed(Double.NEGATIVE_INFINITY, SpeedUnit.SI);
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59 public static final Speed POS_MAXVALUE = new Speed(Double.MAX_VALUE, SpeedUnit.SI);
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62 public static final Speed NEG_MAXVALUE = new Speed(-Double.MAX_VALUE, SpeedUnit.SI);
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69 public Speed(final double value, final SpeedUnit unit)
70 {
71 super(value, unit);
72 }
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78 public Speed(final Speed value)
79 {
80 super(value);
81 }
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83
84 @Override
85 public final Speed instantiateRel(final double value, final SpeedUnit unit)
86 {
87 return new Speed(value, unit);
88 }
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95 public static final Speed createSI(final double value)
96 {
97 return new Speed(value, SpeedUnit.SI);
98 }
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107 public static Speed interpolate(final Speed zero, final Speed one, final double ratio)
108 {
109 return new Speed(zero.getInUnit() * (1 - ratio) + one.getInUnit(zero.getUnit()) * ratio, zero.getUnit());
110 }
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118 public static Speed max(final Speed r1, final Speed r2)
119 {
120 return (r1.gt(r2)) ? r1 : r2;
121 }
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130 public static Speed max(final Speed r1, final Speed r2, final Speed... rn)
131 {
132 Speed maxr = (r1.gt(r2)) ? r1 : r2;
133 for (Speed r : rn)
134 {
135 if (r.gt(maxr))
136 {
137 maxr = r;
138 }
139 }
140 return maxr;
141 }
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149 public static Speed min(final Speed r1, final Speed r2)
150 {
151 return (r1.lt(r2)) ? r1 : r2;
152 }
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161 public static Speed min(final Speed r1, final Speed r2, final Speed... rn)
162 {
163 Speed minr = (r1.lt(r2)) ? r1 : r2;
164 for (Speed r : rn)
165 {
166 if (r.lt(minr))
167 {
168 minr = r;
169 }
170 }
171 return minr;
172 }
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182 public static Speed valueOf(final String text) throws IllegalArgumentException
183 {
184 if (text == null || text.length() == 0)
185 {
186 throw new IllegalArgumentException("Error parsing Speed -- null or empty argument");
187 }
188 Matcher matcher = NUMBER_PATTERN.matcher(text);
189 if (matcher.find())
190 {
191 int index = matcher.end();
192 try
193 {
194 String unitString = text.substring(index).trim();
195 String valueString = text.substring(0, index).trim();
196 for (SpeedUnit unit : Unit.getUnits(SpeedUnit.class))
197 {
198 if (unit.getDefaultLocaleTextualRepresentations().contains(unitString))
199 {
200 double d = Double.parseDouble(valueString);
201 return new Speed(d, unit);
202 }
203 }
204 }
205 catch (Exception exception)
206 {
207 throw new IllegalArgumentException("Error parsing Speed from " + text, exception);
208 }
209 }
210 throw new IllegalArgumentException("Error parsing Speed from " + text);
211 }
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218 public final Dimensionless divideBy(final Speed v)
219 {
220 return new Dimensionless(this.si / v.si, DimensionlessUnit.SI);
221 }
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228 public final FlowVolume multiplyBy(final Area v)
229 {
230 return new FlowVolume(this.si * v.si, FlowVolumeUnit.SI);
231 }
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238 public final Power multiplyBy(final Force v)
239 {
240 return new Power(this.si * v.si, PowerUnit.SI);
241 }
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248 public final Acceleration multiplyBy(final Frequency v)
249 {
250 return new Acceleration(this.si * v.si, AccelerationUnit.SI);
251 }
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258 public final Frequency divideBy(final Length v)
259 {
260 return new Frequency(this.si / v.si, FrequencyUnit.SI);
261 }
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268 public final Length divideBy(final Frequency v)
269 {
270 return new Length(this.si / v.si, LengthUnit.SI);
271 }
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278 public final Frequency multiplyBy(final LinearDensity v)
279 {
280 return new Frequency(this.si * v.si, FrequencyUnit.SI);
281 }
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288 public final Length multiplyBy(final Duration v)
289 {
290 return new Length(this.si * v.si, LengthUnit.SI);
291 }
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298 public final Acceleration divideBy(final Duration v)
299 {
300 return new Acceleration(this.si / v.si, AccelerationUnit.SI);
301 }
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308 public final Duration divideBy(final Acceleration v)
309 {
310 return new Duration(this.si / v.si, DurationUnit.SI);
311 }
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318 public final Force multiplyBy(final FlowMass v)
319 {
320 return new Force(this.si * v.si, ForceUnit.SI);
321 }
322
323 }