cz.cuni.jagrlib.piece
Class LineBresenham

java.lang.Object
  extended by cz.cuni.jagrlib.DefaultProperty
      extended by cz.cuni.jagrlib.Piece
          extended by cz.cuni.jagrlib.piece.LineBresenham
All Implemented Interfaces:
Breakable, LineRender, Property, Render, Template

public class LineBresenham
extends Piece
implements LineRender

Bresenham's algorithm for line segments.

Since:
0.01
See Also:
LineBresenham.java

Field Summary
protected static java.lang.String CATEGORY
          Object category.
protected  int join
          Line-join state.
static RegPiece reg
          Static registration instance for this class.
protected static java.lang.String TEMPLATE_NAME
          Object template identifier.
 
Fields inherited from class cz.cuni.jagrlib.Piece
channels, info, pl, plugs, TEMPLATE_TYPE, userBreak
 
Fields inherited from interface cz.cuni.jagrlib.iface.Render
LINE_CAP, LINE_CAP_BUTT, LINE_CAP_ROUND, LINE_CAP_SQUARE, LINE_JOIN, LINE_JOIN_BEVEL, LINE_JOIN_DISJOINT, LINE_JOIN_MITER, LINE_JOIN_OVERLAP, LINE_JOIN_ROUND, LINE_WIDTH, PROJECTION, RENDER_STYLE, RENDER_STYLE_FLAT, RENDER_STYLE_GOURAUD, RENDER_STYLE_LINE, RENDER_STYLE_PHONG, RENDER_STYLE_TEXTURE
 
Fields inherited from interface cz.cuni.jagrlib.iface.Property
LOGGING, STATISTICS, TEXT_DESCRIPTION
 
Fields inherited from interface cz.cuni.jagrlib.Template
ALL_PLUGS, C_1D, C_2D, C_3D, C_ALPHA, C_BINARY, C_BREP, C_CAMERA, C_CIRCLE, C_CLIP, C_COMPRESSION, C_CURVE, C_DATA, C_DRAW, C_EDITOR, C_ELLIPSE, C_FILL, C_FILTER, C_FLOAT, C_FUNCTION, C_IMAGE, C_INTEGER, C_IO, C_LIGHT, C_LINE, C_METRIC, C_POLYGON, C_PROJECTION, C_RADIOSITY, C_RASTER, C_RENDER, C_SAMPLE, C_SCENE, C_SET, C_SOLID, C_TEXT, C_TRANSFORM, C_VECTOR, C_VIEWER, C_WORKER, CAT_EMPTY, EMPTY, IFACE, JAGRLIB, JAGRLIB2, MANIPULATOR_COMBO, MANIPULATOR_CUSTOM, MANIPULATOR_DEFAULT, MANIPULATOR_MULTILINE, PL_ALPHAMASK, PL_BITMASK, PL_CAUSTIC, PL_CODEC, PL_COLORMAP, PL_COMPARE, PL_DATA, PL_DIRECT, PL_EDITOR, PL_FILTER, PL_FUNCTION, PL_IMAGE, PL_IMPORT, PL_INPUT, PL_INTERSECTION, PL_LIGHTSOURCE, PL_ORDER, PL_OUTPUT, PL_PALETTE, PL_PHOTON, PL_PROPERTY, PL_QUANTIZER, PL_RASTER, PL_RENDER, PL_SHADOW, PL_STREAM, PL_TRANSFORM, PL_TRIGGER, PL_VOLUME, PL_WINDOW, TYPE_BOOLEAN, TYPE_DOUBLE, TYPE_FLOAT, TYPE_INTEGER, TYPE_LONG, TYPE_OBJECT, TYPE_STRING
 
Constructor Summary
LineBresenham()
           
 
Method Summary
 void drawLine(double x1, double y1, double x2, double y2)
          Draws a line from [x1,y1] to [x2,y2].
 void drawLine(int x1, int y1, int x2, int y2)
          Draws a line from [x1,y1] to [x2,y2].
 java.lang.Object get(java.lang.String key)
          Gets the given property.
 void set(java.lang.String key, java.lang.Object value)
          Sets the given property.
static int setTemplate(Template t, int ord)
          General-purpose registration routine.
 
Methods inherited from class cz.cuni.jagrlib.Piece
className, connect, findPlug, findPlug, getInfo, getInterface, getInterface, getPlug, getReg, init, isCompatible, isCompatible, isConnected, logError, logWarning, myInterface, newInputPlug, newOptOutputPlug, newOutputPlug, newPlug, noTemplates, propBegin, propBounds, propDefault, propEnd, propEnum, propManipulator, propManipulator, setProgressListener, setRegStrings, setTemplateDynamic, stop
 
Methods inherited from class cz.cuni.jagrlib.DefaultProperty
booleanProperty, booleanProperty, colorDoubleProperty, colorProperty, commit, doubleProperty, doubleProperty, doubleProperty, enumProperty, floatProperty, floatProperty, floatProperty, intProperty, intProperty, intProperty, longProperty, longProperty, longProperty, set, stringProperty
 
Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait
 
Methods inherited from interface cz.cuni.jagrlib.iface.Property
commit
 

Field Detail

join

protected int join
Line-join state.

See Also:
Render.LINE_JOIN

TEMPLATE_NAME

protected static final java.lang.String TEMPLATE_NAME
Object template identifier.

See Also:
Constant Field Values

CATEGORY

protected static final java.lang.String CATEGORY
Object category.

See Also:
Constant Field Values

reg

public static final RegPiece reg
Static registration instance for this class. Automatically initialized in class-loading time.

Constructor Detail

LineBresenham

public LineBresenham()
Method Detail

set

public void set(java.lang.String key,
                java.lang.Object value)
Sets the given property.

Specified by:
set in interface Property
Overrides:
set in class DefaultProperty
Parameters:
key - Key string.
value - The new value.
See Also:
Property.commit()

get

public java.lang.Object get(java.lang.String key)
Gets the given property.

Specified by:
get in interface Property
Overrides:
get in class DefaultProperty
Parameters:
key - Key string.
Returns:
The actual value or null.

drawLine

public void drawLine(int x1,
                     int y1,
                     int x2,
                     int y2)
Draws a line from [x1,y1] to [x2,y2].

Specified by:
drawLine in interface LineRender
Parameters:
x1 - X coordinate of the starting pixel.
y1 - Y coordinate of the starting pixel.
x2 - X coordinate of the line end.
y2 - Y coordinate of the line end.

drawLine

public void drawLine(double x1,
                     double y1,
                     double x2,
                     double y2)
Draws a line from [x1,y1] to [x2,y2]. Calls drawLine(int,int,int,int) directly after rounding the double arguments.

Specified by:
drawLine in interface LineRender
Parameters:
x1 - X coordinate of the starting pixel.
y1 - Y coordinate of the starting pixel.
x2 - X coordinate of the line end.
y2 - Y coordinate of the line end.

setTemplate

public static int setTemplate(Template t,
                              int ord)
General-purpose registration routine. Sets all plugs, strings, etc. to the given Template.