root / trunk / libraries / libExpressions / src / main / java / org / gvsig / operators / Sin.java @ 23299
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1 | 23299 | jcampos | package org.gvsig.operators; |
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2 | |||
3 | import org.apache.bsf.BSFException; |
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4 | import org.apache.bsf.BSFManager; |
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5 | import org.gvsig.baseclasses.AbstractOperator; |
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6 | import org.gvsig.baseclasses.IOperator; |
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7 | import org.gvsig.expresions.EvalOperatorsTask; |
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8 | |||
9 | import com.iver.andami.PluginServices; |
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10 | |||
11 | /**
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12 | * @author Vicente Caballero Navarro
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13 | */
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14 | public class Sin extends AbstractOperator{ |
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15 | |||
16 | public String addText(String s) { |
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17 | return toString()+"("+s+")"; |
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18 | } |
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19 | public String toString() { |
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20 | return "sin"; |
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21 | } |
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22 | public void eval(BSFManager interpreter) throws BSFException { |
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23 | // interpreter.eval(ExpressionFieldExtension.BEANSHELL,null,-1,-1,"double sin(double value){return java.lang.Math.sin(value);};");
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24 | interpreter.exec(EvalOperatorsTask.JYTHON,null,-1,-1,"def sin(value):\n" + |
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25 | " import java.lang.Math\n" +
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26 | " return java.lang.Math.sin(value)");
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27 | } |
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28 | public boolean isEnable() { |
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29 | return (getType()==IOperator.NUMBER);
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30 | } |
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31 | public String getDescription() { |
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32 | return PluginServices.getText(this, "parameter") + ": " + |
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33 | PluginServices.getText(this, "numeric_value") + "\n" + |
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34 | PluginServices.getText(this, "returns") + ": " + |
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35 | PluginServices.getText(this, "numeric_value") + "\n" + |
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36 | PluginServices.getText(this, "description") + ": " + |
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37 | "Returns the trigonometric sine of an angle. Special cases:\n" +
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38 | "* If the argument is NaN or an infinity, then the result is NaN.\n" +
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39 | "* If the argument is zero, then the result is a zero with the same sign as the argument.";
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40 | } |
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41 | } |