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root / trunk / extensions / extExpressionField / src / com / iver / cit / gvsig / project / documents / table / operators / ToDegrees.java @ 13444

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package com.iver.cit.gvsig.project.documents.table.operators;
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import org.apache.bsf.BSFException;
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import org.apache.bsf.BSFManager;
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import com.iver.andami.PluginServices;
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import com.iver.cit.gvsig.ExpressionFieldExtension;
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import com.iver.cit.gvsig.project.documents.table.AbstractOperator;
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import com.iver.cit.gvsig.project.documents.table.IOperator;
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/**
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 * @author Vicente Caballero Navarro
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 */
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public class ToDegrees extends AbstractOperator{
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        public String addText(String s) {
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                return toString()+"("+s+")";
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        }
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        public String toString() {
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                return "toDegrees";
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        }
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        public void eval(BSFManager interpreter) throws BSFException {
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//                interpreter.eval(ExpressionFieldExtension.BEANSHELL,null,-1,-1,"double toDegrees(double value){return java.lang.Math.toDegrees(value);};");
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                interpreter.exec(ExpressionFieldExtension.JYTHON,null,-1,-1,"def toDegrees(value):\n" +
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                                "  import java.lang.Math\n" +
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                                "  return java.lang.Math.toDegrees(value)");
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        }
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        public boolean isEnable() {
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                return (getType()==IOperator.NUMBER);
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        }
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        public String getDescription() {
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            return PluginServices.getText(this, "parameter") + ": " +
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            PluginServices.getText(this, "double_value") + "\n" +
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            PluginServices.getText(this, "returns") + ": " +
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            PluginServices.getText(this, "double_value") + "\n" +
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            PluginServices.getText(this, "description") + ": " +
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            "Converts an angle measured in radians to an approximately equivalent angle measured in degrees.\n" +
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            "The conversion from radians to degrees is generally inexact; users should not expect cos(toRadians(90.0)) to exactly equal 0.0.";
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        }
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}