tracer.paths

Class Circle

java.lang.Object

tracer.paths.Path

tracer.paths.Circle

All Implemented Interfaces:

processing.core.PConstants, Drawable

public class Circle
extends Path

A circle.

Author:

James Morrow [jamesmorrowdesign.com]

Field Summary

Fields inherited from class tracer.paths.Path

ALMOST_ONE

Fields inherited from interface processing.core.PConstants

ADD, ALPHA, ALT, AMBIENT, ARC, ARGB, ARROW, BACKSPACE, BASELINE, BEVEL, BEZIER_VERTEX, BLEND, BLUR, BOTTOM, BOX, BREAK, BURN, CENTER, CHATTER, CHORD, CLAMP, CLOSE, CODED, COMPLAINT, CONTROL, CORNER, CORNERS, CROSS, CURVE_VERTEX, CUSTOM, DARKEST, DEG_TO_RAD, DELETE, DIAMETER, DIFFERENCE, DILATE, DIRECTIONAL, DISABLE_ASYNC_SAVEFRAME, DISABLE_BUFFER_READING, DISABLE_DEPTH_MASK, DISABLE_DEPTH_SORT, DISABLE_DEPTH_TEST, DISABLE_KEY_REPEAT, DISABLE_NATIVE_FONTS, DISABLE_OPENGL_ERRORS, DISABLE_OPTIMIZED_STROKE, DISABLE_STROKE_PERSPECTIVE, DISABLE_STROKE_PURE, DISABLE_TEXTURE_MIPMAPS, DODGE, DOWN, DXF, ELLIPSE, ENABLE_ASYNC_SAVEFRAME, ENABLE_BUFFER_READING, ENABLE_DEPTH_MASK, ENABLE_DEPTH_SORT, ENABLE_DEPTH_TEST, ENABLE_KEY_REPEAT, ENABLE_NATIVE_FONTS, ENABLE_OPENGL_ERRORS, ENABLE_OPTIMIZED_STROKE, ENABLE_STROKE_PERSPECTIVE, ENABLE_STROKE_PURE, ENABLE_TEXTURE_MIPMAPS, ENTER, EPSILON, ERODE, ESC, EXCLUSION, FX2D, GIF, GRAY, GROUP, HALF_PI, HAND, HARD_LIGHT, HINT_COUNT, HSB, IMAGE, INVERT, JAVA2D, JPEG, LANDSCAPE, LEFT, LIGHTEST, LINE, LINE_LOOP, LINE_STRIP, LINES, LINUX, MACOSX, MAX_FLOAT, MAX_INT, MIN_FLOAT, MIN_INT, MITER, MODEL, MODELVIEW, MOVE, MULTIPLY, NORMAL, OPAQUE, OPEN, OPENGL, ORTHOGRAPHIC, OTHER, OVERLAY, P2D, P3D, PATH, PDF, PERSPECTIVE, PI, PIE, platformNames, POINT, POINTS, POLYGON, PORTRAIT, POSTERIZE, PROBLEM, PROJECT, PROJECTION, QUAD, QUAD_BEZIER_VERTEX, QUAD_STRIP, QUADRATIC_VERTEX, QUADS, QUARTER_PI, RAD_TO_DEG, RADIUS, RECT, REPEAT, REPLACE, RETURN, RGB, RIGHT, ROUND, SCREEN, SHAPE, SHIFT, SOFT_LIGHT, SPAN, SPHERE, SPOT, SQUARE, SUBTRACT, SVG, TAB, TARGA, TAU, TEXT, THIRD_PI, THRESHOLD, TIFF, TOP, TRIANGLE, TRIANGLE_FAN, TRIANGLE_STRIP, TRIANGLES, TWO_PI, UP, VERTEX, WAIT, WHITESPACE, WINDOWS, X, Y, Z

Constructor Summary

Constructors

Constructor and Description
Circle(Circle c) Copy constructor.
Circle(float x, float y, float radius)
Circle(Point center, float radius)

Method Summary

Modifier and Type	Method and Description
Circle	clone() Getters *****
void	draw(processing.core.PGraphics g) Behavior *****
void	draw(processing.core.PGraphics g, float u1, float u2) Draws a segment of the path starting at trace(u1) and ending at trace(u2).
Point	getCenter() Gives the center point of the Circle.
float	getCenx() Gives the x-coordinate of the center point of the Circle.
float	getCeny() Gives the y-coordinate of the center point of the Circle.
float	getDiameter() Gives the diameter of the Circle.
float	getGap(int i) Gives the ith discontinuity in the Path as a 1D coordinate.
int	getGapCount() Returns the number of discontinuities in the Path.
float	getLength() Returns the length of the Path.
float	getRadius() Gives the radius of the Circle.
float	getStartAngle()
boolean	isGap(float u) Indicates whether or not there is a gap exactly at the 1D coordinate u.
void	setCenter(float x, float y) Sets the center point of the Circle.
void	setCenter(Point center) Sets the center point of the Circle.
void	setDiameter(float diam) Set the diameter of the Circle.
void	setRadius(float radius) Set the radius.
void	setStartAngle(float startAngle)
java.lang.String	toString()
void	trace(Point target, float u) Given a 1D coordinate, a float, maps the coordinate to a 2D coordinate and stores it in a given Point.
void	translate(float dx, float dy) Events *****

Methods inherited from class tracer.paths.Path

addOneOfEachPathType, compute1DSegmentLength, compute2DSegmentLength, derivePath, derivePath, draw, draw, draw, getDefaultSamplesPerUnitLength, getFill, getFillColor, getOneOfEachPathType, getSampleCount, getSlope, getStroke, getStrokeCap, getStrokeColor, getStrokeJoin, getStrokeWeight, isGap, isReversed, remainder, reverse, setDefaultSamplesPerUnitLength, setFill, setFillColor, setSampleCount, setSamplesPerUnitLength, setStroke, setStrokeCap, setStrokeColor, setStrokeJoin, setStrokeWeight, setStyle, setStyle, setStyle, trace

Methods inherited from class java.lang.Object

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

Constructor Detail

Circle

public Circle(Point center,
              float radius)

Parameters:

center - the center

radius - the radius

Circle

public Circle(float x,
              float y,
              float radius)

Parameters:

x - the center x-coordinate

y - the center y-coordinate

radius - the radius

Circle

public Circle(Circle c)

Copy constructor.

Parameters:

c - the circle to copy

Method Detail

draw

public void draw(processing.core.PGraphics g)

Behavior *****

Specified by:

draw in interface Drawable

Overrides:

draw in class Path

Parameters:

g - A PGraphics object on which to draw the path

draw

public void draw(processing.core.PGraphics g,
                 float u1,
                 float u2)

Description copied from class: Path

Draws a segment of the path starting at trace(u1) and ending at trace(u2).

Overrides:

draw in class Path

Parameters:

g - A PGraphics object on which to draw the path

u1 - The 1D coordinate of the segment's start

u2 - The 1D coordinate of the segment's end

trace

public void trace(Point target,
                  float u)

Description copied from class: Path

Given a 1D coordinate, a float, maps the coordinate to a 2D coordinate and stores it in a given Point.

Maps a given floating point number within [0, 1) to a given Point along the perimeter of the Path.

Specified by:

trace in class Path

Parameters:

target - The Point in which the result is stored.

u - A number within [0, 1)

translate

public void translate(float dx,
                      float dy)

Events *****

Specified by:

translate in class Path

Parameters:

dx - The number of pixels to shift the path right.

dy - The number of pixels to shift the path down.

setStartAngle

public void setStartAngle(float startAngle)

Parameters:

startAngle -

setCenter

public void setCenter(float x,
                      float y)

Sets the center point of the Circle.

Overrides:

setCenter in class Path

Parameters:

x - The x-coordinate

y - The y-coordinate

setCenter

public void setCenter(Point center)

Sets the center point of the Circle.

Parameters:

center - The center poitn

setDiameter

public void setDiameter(float diam)

Set the diameter of the Circle.

Parameters:

diam -

setRadius

public void setRadius(float radius)

Set the radius.

Parameters:

radius - the radius

clone

public Circle clone()

Getters *****

Specified by:

clone in class Path

getLength

public float getLength()

Description copied from class: Path

Returns the length of the Path.

Overrides:

getLength in class Path

Returns:

The length of the Path

getCenter

public Point getCenter()

Gives the center point of the Circle.

Returns:

The center point.

getCenx

public float getCenx()

Gives the x-coordinate of the center point of the Circle.

Returns:

The x-coordinate

getCeny

public float getCeny()

Gives the y-coordinate of the center point of the Circle.

Returns:

The y-coordinate

getDiameter

public float getDiameter()

Gives the diameter of the Circle.

Returns:

the diameter

getRadius

public float getRadius()

Gives the radius of the Circle.

Returns:

the radius

getGapCount

public int getGapCount()

Description copied from class: Path

Returns the number of discontinuities in the Path.

Specified by:

getGapCount in class Path

Returns:

The number of discontinuities in the Path

getGap

public float getGap(int i)

Description copied from class: Path

Gives the ith discontinuity in the Path as a 1D coordinate. Gaps should be unique and indexed in ascending order. In other words, this must hold true: gap(i) < gap(i+1) as i varies from 0 to getGapCount()-1. Gives -1 if the index is valid.

Specified by:

getGap in class Path

Parameters:

i - The index

Returns:

The ith discontinuity as a value within [0, 1)

isGap

public boolean isGap(float u)

Description copied from class: Path

Indicates whether or not there is a gap exactly at the 1D coordinate u.

Overrides:

isGap in class Path

Parameters:

u - The 1D coordinate.

Returns:

True, if there is a gap and false otherwise.

getStartAngle

public float getStartAngle()

toString

public java.lang.String toString()

Overrides:

toString in class java.lang.Object