rotate.java

来自「JAVA 数学程序库 提供常规的数值计算程序包」· Java 代码 · 共 60 行

package jmathlib.toolbox.jmathlib.graphics.graph3d;

import jmathlib.core.tokens.*;
import jmathlib.core.functions.ExternalFunction;
import jmathlib.core.tokens.numbertokens.DoubleNumberToken;
import jmathlib.core.graphics.*;
import jmathlib.core.graphics.axes.*;


/** rotate*/
public class rotate extends ExternalFunction
{

	public OperandToken evaluate(Token[] operands)
	{

		double phiX = 0;
        double phiY = 0;
        double phiZ = 0;

        if (getNArgIn(operands) != 3)
			throwMathLibException("rotate: number of arguments != 3");
            

		else if ((operands[0] instanceof DoubleNumberToken) &&
                 (operands[1] instanceof DoubleNumberToken) &&
                 (operands[2] instanceof DoubleNumberToken)    )
		{
			phiX = (((DoubleNumberToken)operands[0]).getReValues()[0][0]);
			phiY = (((DoubleNumberToken)operands[1]).getReValues()[0][0]);
			phiZ = (((DoubleNumberToken)operands[2]).getReValues()[0][0]);
		}
		else
        {
   			throwMathLibException("rotate: wrong argument");
        }
        
		// rotate axes 
		((Axes3DObject)getGraphicsManager().getCurrentFigure().getCurrentAxes()).rotate(phiX,phiY,phiZ);

		getGraphicsManager().getCurrentFigure().repaint();

		return null;
	}
}

/*
@GROUP
graphics
@SYNTAX
rotate(phiX, phiY, phiZ)
@DOC
Turns the grid on or off on a graph.
@EXAMPLES
@NOTES
@SEE
plot3, surf
*/