Sample Hexagon Shape for processing.js

gistfile1.js

/**
 * =========================================================================
 * Hexagon
 * =========================================================================
 * simple hexagon class for processing.js
 */
class Hexagon
{
    // center of the hexagon
	float centerX;
	float centerY;
	
	// outer Radius => center to vertex;
	float outerRadius;
	// inner radius = h/2 (middle between two vertices;
	float innerRadius;
	
	// vertex coordinates
	float[] verticesX;
	float[] verticesY;
	
	// appearance
	color cFill = #FFFFFF;
	color cStroke = #000000;
	
	/**
	 * Constructor
	 */
	Hexagon(
			float x, 
			float y, 
			float rad
		)
	{
		this.verticesX = new float[6];
		this.verticesY = new float[6];
		
		this.centerX = x;
		this.centerY = y;
		this.outerRadius = rad;
		this.innerRadius = rad * cos(30 *PI / 180);
	
		this.setupVertices();
	}
	
	/**
	 * @private
	 */
	void setupVertices() 
	{
		for( int i=0; i<6; i++ )
		{
			this.verticesX[i] = this.centerX 
					+ (this.outerRadius * cos( (60*i) /180 * PI));
			this.verticesY[i] = this.centerY 
					+ (this.outerRadius * sin( (60*i) /180 * PI));
		}
	}
	
	void draw()
	{
		fill(this.cFill);
		stroke(this.cStroke);
		beginShape();
		for( int i=0; i<6; i++ )
			vertex( this.verticesX[i], this.verticesY[i] );
		
		endShape(CLOSE);
	}

	void setPosition(float x, float y) 
	{
		this.centerX = x;
		this.centerY = y;
		this.setupVertices();
	}
	
	void setFillColor(color c)
	{
		this.cFill = c;
	}
	
	void setStrokeColor(color c)
	{
		this.cStroke = c;
	}
	
	float getInnerRadius()
	{
		return this.innerRadius;
	}
	
	float getOuterRadius()
	{
		return this.outerRadius;
	}
	
	float getCenterX()
	{
		return this.centerX;
	}
	
	float getCenterY()
	{
		return this.centerY;
	}
}