Class DrawingUtil

java.lang.Object
  DrawingUtil

public class DrawingUtil

extends java.lang.Object

Utility class for rendering.

Author:

Lulin Song

Constructor Summary

DrawingUtil()

Method Summary

static void	drawCentred(java.awt.Graphics2D g2, java.lang.String text, float centerX, float centerY, boolean textLayoutBounds) Draw a text string which is centered in given location.
static void	drawCircle(java.awt.Graphics2D g2d, double[] data, float[] xData, float[] yData, java.awt.Color c, float xs, float ys, float xOff, float yOff, float radius) Draw circles using pass in x and y coordinates.
static void	drawDots(java.awt.Graphics2D g2d, float[] xData, float[] yData, float xs, float ys, java.awt.Color c, float xOff, float yOff) Draw points centered at (xData[i],yData[i]) and radius is 1.
void	drawLegendBox(java.awt.Graphics2D g2, int width, int ht) Draw the legend box.
static void	drawLegendTicks(java.awt.Graphics2D g2, float startX, float startY, float endX, float endY, java.lang.String[] tickMarks, int type) Draw legend's tick marks.
static void	drawLineSegments(java.awt.Graphics2D g2d, float[] xData, float[] yData, float xs, float ys, java.awt.Color c, float xOff, float yOff) Draw line segments using pass in x and y coordinates.
static void	drawLineSegmentsTickMarks(java.awt.Graphics2D g2d, float[] xData, float[] yData, float xs, float ys, java.awt.Color c, float xOff, float yOff, java.lang.String[] strs) Draw line segments using pass in x and y coordinates.
static void	drawPolyLine(java.awt.Graphics2D g2d, float[] xData, float[] yData, float xs, float ys, java.awt.Color c, float xOff, float yOff) Draw a poly line using pass in x and y coordinates.
static void	drawRects(java.awt.Graphics2D g2d, int[][] data, java.awt.Color[] c, float xs, float ys, float xOff, float yOff) Draw points centered at (xData[i],yData[i]) and radius is 1.
static void	drawStringsInBox(java.awt.Graphics2D g2, int width, int ht, java.lang.String[] strs, java.awt.Font f) Draw an array of strings in a bounding box with origin in (0,0).
static void	printFontNames() Will print out all available english font names in the system.

Methods inherited from class java.lang.Object

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

Constructor Detail

DrawingUtil

public DrawingUtil()

Method Detail

drawCentred

public static void drawCentred(java.awt.Graphics2D g2,
                               java.lang.String text,
                               float centerX,
                               float centerY,
                               boolean textLayoutBounds)

Draw a text string which is centered in given location.

Parameters:

g2 - Graphics2D context in which the string will be drawn.

text - text string

centerX - center's x position

centerY - center's y position

textLayoutBounds - if true, will create a new TextLayout,otherwise use the old one

printFontNames

public static void printFontNames()

Will print out all available english font names in the system.

drawLegendTicks

public static void drawLegendTicks(java.awt.Graphics2D g2,
                                   float startX,
                                   float startY,
                                   float endX,
                                   float endY,
                                   java.lang.String[] tickMarks,
                                   int type)

Draw legend's tick marks.

Parameters:

g2 - Graphics2D context which we drawn

startX - start x position

startY - start y position

endX - x end position

endY - y end position

tickMarks - the tick marks' name such 1,2 or 0.2, 0.4, etc

type - =1 draw X ticks, =2 draw Y left ticks, =3 draw Y right ticks ,=4 vertical gray line.

drawPolyLine

public static void drawPolyLine(java.awt.Graphics2D g2d,
                                float[] xData,
                                float[] yData,
                                float xs,
                                float ys,
                                java.awt.Color c,
                                float xOff,
                                float yOff)

Draw a poly line using pass in x and y coordinates. Assume the origin is (0,0).

Parameters:

xData - x coordinates

yData - y coordinates

xs - scale for x coordinates so the x position fits the legend box.

ys - scale for y coordinates so the y position fits legend box.

xOff - offset for x axis. x axis start with xOff

yOff - offset for y axis. y axis start with yOff

drawLineSegmentsTickMarks

public static void drawLineSegmentsTickMarks(java.awt.Graphics2D g2d,
                                             float[] xData,
                                             float[] yData,
                                             float xs,
                                             float ys,
                                             java.awt.Color c,
                                             float xOff,
                                             float yOff,
                                             java.lang.String[] strs)

Draw line segments using pass in x and y coordinates. Assume the origin is (0,0).

Parameters:

xData - x coordinates

yData - y coordinates

xs - scale for x coordinates so the x position fits the legend box.

ys - scale for y coordinates so the y position fits legend box.

xOff - offset for x axis. x axis start with xOff

yOff - offset for y axis. y axis start with yOff

strs - tick mark names.

drawLineSegments

public static void drawLineSegments(java.awt.Graphics2D g2d,
                                    float[] xData,
                                    float[] yData,
                                    float xs,
                                    float ys,
                                    java.awt.Color c,
                                    float xOff,
                                    float yOff)

Draw line segments using pass in x and y coordinates. Assume the origin is (0,0).

Parameters:

xData - x coordinates

yData - y coordinates

xs - scale for x coordinates so the x position fits the legend box.

ys - scale for y coordinates so the y position fits legend box.

xOff - offset for x axis. x axis start with xOff

yOff - offset for y axis. y axis start with yOff

drawDots

public static void drawDots(java.awt.Graphics2D g2d,
                            float[] xData,
                            float[] yData,
                            float xs,
                            float ys,
                            java.awt.Color c,
                            float xOff,
                            float yOff)

Draw points centered at (xData[i],yData[i]) and radius is 1. Assume the origin is (0,0).

Parameters:

xData - array of x coordinates

yData - array of y coordinates

xs - scale for x coordinates so the x position fits the legend box.

ys - scale for y coordinates so the y position fits legend box.

xOff - offset for x axis. x axis start with xOff

yOff - offset for y axis. y axis start with yOff

drawRects

public static void drawRects(java.awt.Graphics2D g2d,
                             int[][] data,
                             java.awt.Color[] c,
                             float xs,
                             float ys,
                             float xOff,
                             float yOff)

Draw points centered at (xData[i],yData[i]) and radius is 1. Assume the origin is (0,0).

Parameters:

data - array of x,y coordinates

xs - scale for x coordinates so the x position fits the rectangle box.

ys - scale for y coordinates so the y position fits rectangle box.

xOff - offset for x axis. x axis start with xOff

yOff - offset for y axis. y axis start with yOff

drawLegendBox

public void drawLegendBox(java.awt.Graphics2D g2,
                          int width,
                          int ht)

Draw the legend box.

Parameters:

g2 - Graphic2D where all drawing happens.

width - width of the legend box.

ht - height of the legend box.

drawStringsInBox

public static void drawStringsInBox(java.awt.Graphics2D g2,
                                    int width,
                                    int ht,
                                    java.lang.String[] strs,
                                    java.awt.Font f)

Draw an array of strings in a bounding box with origin in (0,0). The font size will be resized according the string length and bounding box.

Parameters:

g2 - a Graphics2D object to be drawn in.

width - bounding box width

ht - bounding box height

strs - the array of strings

f - default font

drawCircle

public static void drawCircle(java.awt.Graphics2D g2d,
                              double[] data,
                              float[] xData,
                              float[] yData,
                              java.awt.Color c,
                              float xs,
                              float ys,
                              float xOff,
                              float yOff,
                              float radius)

Draw circles using pass in x and y coordinates. Assume the origin is (0,0).

Parameters:

g2d - a Graphics2D object to be drawn in.

xData - x coordinates for the center of the circle

yData - y coordinates for the center of the circle

data - ratios to radius of the circle

xs - scale of x axis

ys - scale of y axis

xOff - offset for x axis. x axis start with xOff

yOff - offset for y axis. y axis END with yOff

radius - radius of the circle