API drawing

Vectors in AS3 are created by using the Graphics Class. Unlike the majority of other classes, there is no need to create an instance of this class before you use it because an instance of it is already instantiated as a property of any display objects that is a Shape, Sprite, and MovieClip.
You can draw simple geometric objects like lines, circles, triangles or squares defining every property, complex drawings defining lines and create more complex effect with a Matrix.

Typical process:

circle.graphics.beginFill (0xFF66FF, 0.8) ;

circle	.	graphics	.	beginFill	(0xFF66FF	,	0,8)	;

instance	.	class	.	method name	hex color	,	alpha (0 to 1)	;

circle.graphics.drawCircle(0,2,20) ;

circle	.	graphics	.	beginFill	(0	,	2	,	20 )	;

instance	.	class	.	method name	center: x value	,	center: y value	,	radius value	;

Circle.graphics.endFill();

circle	.	graphics	.	endFill	( )	;

instance	.	class	.	method name	()	;

addChild (circle);

Begin Methods

beginBitmapFill ( bitmap: Bitmapdata, matrix: Matrix, repeat: Boolean=true, smooth: Boolean=false) :void

Fills a drawing area with a bitmap image.

Bitmapdata	A transparent or opaque bitmap image that contains bits to be displayed
Matrix	(default=null) A matrix object (of the flash.geom.Matrix.class), which you can use to define transformations to the bitmap.	matrix= new flash.geom. Matrix (); matrix.rotate(Math.PI/4);
repeat: Boolean	(default=true) If true, the bitmap image repeats in a tiled pattern. If false the bitmap does not repeat and the edges of the bitmap are used for any fill area that extends beyond the bitmap.
smoth: Boolean	(default=flase) If false upscaled bitmap images are rendered using the NEAREST-NEIGHBOR algorithm and look pixelated. if tue, upsaled bitmap images are rendered using a BILINEAR algorith, it will look better but it runs slower.

canvas.graphics.beginBitmapFill( source, matrix, true, false );
canvas.graphics.drawRect( -cx, -cy, sw, sh );
canvas.graphics.endFill();

beginFill ( color: uint, alpha: Number =1) : void

Specifies a simple one-color fill. Use with other graphic methods (like lineTo() or drawCircle()) for drawing.

beginGradientFill ( shader: Shader, colors: Array, ratios: Array, matrix: Matrix, spreadMethod:String ="pad", ________interpolationMethod: String ="rgb", focalPointRatio:Number =0):void

Speciefies a gradient fill. It needs subsequent calls to drawing methods to create an object.

Draw Methods

drawCircle( x: Number, y: Number , radius: Number) : void

drawEllipse( x: Number, y: Number , width: Number, height: Number) :void

drawRoundRect( x: Number, y: Number , height: Number, ellipseWidth: Number , ellipseHeight: Number =NaN)

drawTriangles( vertices: Vector. <Number>, indices: Vector.<int>=null, uvData: Vecor. <Number> = null, culling: String = "none") :void

End Methods

endFill( ) :void

Applies a fill to the lines and curves that were added since the last call to the beginFill(), BeginGradientFill(), or beginBitmapFill() method.

The basic graphics methods for drawing vectors are:

lineStyle() - Specificies the look of any line stroke we make.
lineStyle (thickness =n, color =n, alpha =0.8, pixelHinting ="false", scaleMode = "normal", caps ="none", joints ="bevel" , miterLimit = 3)

moveTo() - Moves the drawing pointer to the specific point.
moveTo ( x = n, y =n )

lineTo() - Draws a line to the specified point.
lineTo ( x = n, y =n )

curveTo() - Draws a curve to the specific point.

beingFill() - Starts color filling the area between the lines.

endFill() - Ends of the fill of the area between the lines.

clear() - Clears all vectors inside a graphics object.

Tutorials

Advanced beginBitmapFil :
http://www.reflektions.com/miniml/template_permalink.asp?id=328

http://www.reflektions.com/miniml/template_permalink.asp?id=327

Using a matrix:
http://www.kirupa.com/forum/showthread.php?288157-Problems-with-beginBitmapFill