com.corajr.loom.mappings

Class Draw

java.lang.Object

com.corajr.loom.mappings.Draw

public class Draw
extends Object

Classes for various drawing commands. When added to a pattern, these commands will be attached to the current PApplet and will execute in its graphics context.

Author:

corajr

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
static class	Draw.Compound Combines several different DrawCommands into a single command.
static class	Draw.Ellipse Draws an ellipse.
static class	Draw.Forward Draw a line by a specified amount and translate to the end of that line.
static class	Draw.Line Draws a line from (x1, y1) to (x2, y2).
static class	Draw.Noop Do nothing.
static class	Draw.Pop Pop a transformation matrix of the draw context from the stack.
static class	Draw.Push Push the current transformation matrix of the draw context to the stack.
static class	Draw.Rect Draws a rectangle.
static class	Draw.Rotate Rotate the drawing context by the specified amount.
static class	Draw.Translate Translates the drawing context.

Field Summary

Fields

Modifier and Type	Field and Description
static Draw.Noop	NOOP NOOP is useful for instructions that are to be ignored, i.e.

Constructor Summary

Constructors

Constructor and Description
Draw()

Method Summary

Modifier and Type	Method and Description
static Draw.Compound	c(DrawCommand... commands) Shorthand to combine multiple DrawCommands into a single command.
static Draw.Ellipse	ellipse(float x, float y, float w, float h) Make a new Ellipse.
static Draw.Forward	forward(float drawLength) Make a new Forward.
static Draw.Line	line(float x1, float y1, float x2, float y2) Make a new Line.
static Draw.Pop	pop() Make a new Pop command.
static Draw.Push	push() Make a new Push command.
static Draw.Rect	rect(float x, float y, float w, float h) Make a new Rect.
static Draw.Rotate	rotate(float theta) Make a new Rotate.
static Draw.Translate	translate(float x, float y) Make a new Translate.

Methods inherited from class java.lang.Object

equals, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Detail

NOOP

public static final Draw.Noop NOOP

NOOP is useful for instructions that are to be ignored, i.e. constants in an L-system that do not draw anything.

Constructor Detail

Draw

public Draw()

Method Detail

line

public static Draw.Line line(float x1,
                             float y1,
                             float x2,
                             float y2)

Make a new Line.

Parameters:

x1 - x-coordinate of first point

y1 - y-coordinate of first point

x2 - x-coordinate of second point

y2 - y-coordinate of first point

Returns:

a new Line

rect

public static Draw.Rect rect(float x,
                             float y,
                             float w,
                             float h)

Make a new Rect.

Parameters:

x - the x-coordinate of upper-left corner

y - the y-coordinate of upper-left corner

w - the width of the rectangle

h - the height of the rectangle

Returns:

a new Rect

ellipse

public static Draw.Ellipse ellipse(float x,
                                   float y,
                                   float w,
                                   float h)

Make a new Ellipse.

Parameters:

x - the x-coordinate of the center

y - the y-coordinate of the center

w - the length of the horizontal axis

h - the length of the vertical axis

Returns:

a new Ellipse

translate

public static Draw.Translate translate(float x,
                                       float y)

Make a new Translate.

Parameters:

x - the amount to translate horizontally in pixels

y - the amount to translate vertically in pixels

Returns:

a new Translate

forward

public static Draw.Forward forward(float drawLength)

Make a new Forward.

Parameters:

drawLength - the amount to draw/move forward

Returns:

a new Forward

rotate

public static Draw.Rotate rotate(float theta)

Make a new Rotate.

Parameters:

theta - the amount to rotate by in radians

Returns:

a new Rotate

push

public static Draw.Push push()

Make a new Push command.

Returns:

a new Push

pop

public static Draw.Pop pop()

Make a new Pop command.

Returns:

a new Pop

c

public static Draw.Compound c(DrawCommand... commands)

Shorthand to combine multiple DrawCommands into a single command.

Parameters:

commands - the DrawCommands to be combined

Returns:

a compound command that calls `draw()` on all members when called.