Revision 13444 trunk/extensions/extExpressionField/src/com/iver/cit/gvsig/project/documents/table/operators/Perimeter.java

View differences:

Perimeter.java
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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.cit.gvsig.ExpresionFieldExtension;


  		




  
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import com.hardcode.gdbms.driver.exceptions.ReadDriverException;


  		




  
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import com.iver.andami.PluginServices;


  		




  
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import com.iver.andami.messages.NotificationManager;


  		




  
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import com.iver.cit.gvsig.ExpressionFieldExtension;


  		




  
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import com.iver.cit.gvsig.exceptions.expansionfile.ExpansionFileReadException;


  		




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import com.iver.cit.gvsig.fmap.MapContext;


  		




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import com.iver.cit.gvsig.fmap.ViewPort;


  		




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import com.iver.cit.gvsig.fmap.core.FShape;


  		




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	}


  		




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	public double process(Index index) throws DriverIOException {


  		




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		ReadableVectorial adapter = getLayer().getSource();


  		




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	   	IGeometry geom=adapter.getShape(index.get());


  		




  
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	   	IGeometry geom=null;


  		




  
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		try {


  		




  
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			geom = adapter.getShape(index.get());


  		




  
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		} catch (ExpansionFileReadException e) {


  		




  
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			throw new DriverIOException(e);


  		




  
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		} catch (ReadDriverException e) {


  		




  
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			throw new DriverIOException(e);


  		




  
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		}


  		




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	   	Double[][] xsys=getXY(geom);


  		




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	    double dist = 0;


  		




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        double distAll = 0;


  		




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		return distAll/MapContext.CHANGEM[distanceUnits];


  		




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	}


  		




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	public void eval(BSFManager interpreter) throws BSFException {


  		




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		interpreter.declareBean("perimeter",this,Perimeter.class);


  		




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		interpreter.eval(ExpresionFieldExtension.BEANSHELL,null,-1,-1,"double perimeter(){return perimeter.process(indexRow);};");


  		




  
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		interpreter.declareBean("jperimeter",this,Perimeter.class);


  		




  
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//		interpreter.eval(ExpressionFieldExtension.BEANSHELL,null,-1,-1,"double perimeter(){return jperimeter.process(indexRow);};");


  		




  
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		interpreter.exec(ExpressionFieldExtension.JYTHON,null,-1,-1,"def perimeter():\n" +


  		




  
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				"  return jperimeter.process(indexRow)");


  		




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	}


  		




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	public String toString() {


  		




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		return "perimeter";


  		




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		int type=FShape.POINT;


  		




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		try {


  		




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			type=adapter.getShapeType();


  		




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		} catch (DriverIOException e) {


  		




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			e.printStackTrace();


  		




  
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		} catch (ReadDriverException e) {


  		




  
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			NotificationManager.addError(e);


  		




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		}


  		




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		return (getType()==IOperator.NUMBER && (type==FShape.POLYGON || type==FShape.LINE));


  		




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	}


  		




  
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	public String getTooltip(){


  		




  
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		return PluginServices.getText(this,"operator")+":  "+addText("")+"\n"+getDescription();


  		




  
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	}


  		




  
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	public String getDescription() {


  		




  
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        return PluginServices.getText(this, "returns") + ": " +


  		




  
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        PluginServices.getText(this, "numeric_value") + "\n" +


  		




  
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        PluginServices.getText(this, "description") + ": " +


  		




  
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        "Returns the perimeter of polygon or line geometry  of this row.";


  		




  
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    }


  		




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}


  		












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