@ -1,10 +1,15 @@
// ymageMatrix.java
// ---------------------------
// (C) by Michael Peter Christen; mc@anomic.de
// first published on http://www.anomic.de
// Frankfurt, Germany, 2005
// last major change: 16.09.2005
// (C) 2005 by Michael Peter Christen; mc@yacy.net, Frankfurt a. M., Germany
// first published 16.09.2005 on http://yacy.net
//
// This is a part of YaCy, a peer-to-peer based web search engine
//
// $LastChangedDate: 2006-04-02 22:40:07 +0200 (So, 02 Apr 2006) $
// $LastChangedRevision: 1986 $
// $LastChangedBy: orbiter $
//
// LICENSE
//
// This program is free software; you can redistribute it and/or modify
// it under the terms of the GNU General Public License as published by
// the Free Software Foundation; either version 2 of the License, or
@ -18,25 +23,6 @@
// You should have received a copy of the GNU General Public License
// along with this program; if not, write to the Free Software
// Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
//
// Using this software in any meaning (reading, learning, copying, compiling,
// running) means that you agree that the Author(s) is (are) not responsible
// for cost, loss of data or any harm that may be caused directly or indirectly
// by usage of this softare or this documentation. The usage of this software
// is on your own risk. The installation and usage (starting/running) of this
// software may allow other people or application to access your computer and
// any attached devices and is highly dependent on the configuration of the
// software which must be done by the user of the software; the author(s) is
// (are) also not responsible for proper configuration and usage of the
// software, even if provoked by documentation provided together with
// the software.
//
// Any changes to this file according to the GPL as documented in the file
// gpl.txt aside this file in the shipment you received can be done to the
// lines that follows this copyright notice here, but changes must not be
// done inside the copyright notive above. A re-distribution must contain
// the intact and unchanged copyright notice.
// Contributions and changes to the program code must be marked as such.
/ *
This Class implements some convenience - methods to support drawing of statistical Data
@ -110,17 +96,18 @@ public class ymageMatrix /*implements Cloneable*/ {
//gr.clearRect(0, 0, width, height);
grid = image . getRaster ( ) ;
// fill grid with background color
byte bgR = ( byte ) ( 0xFF - ( backgroundColor > > 16 ) ) ;
byte bgG = ( byte ) ( 0xFF - ( ( backgroundColor > > 8 ) & 0xff ) ) ;
byte bgB = ( byte ) ( 0xFF - ( backgroundColor & 0xff ) ) ;
int [ ] c = new int [ ] { bgR , bgG , bgB } ;
for ( int i = 0 ; i < width ; i + + ) {
for ( int j = 0 ; j < height ; j + + ) {
grid . setPixel ( i , j , c ) ;
//if (backgroundColor != SUBTRACTIVE_WHITE) {
// fill grid with background color
byte bgR = ( byte ) ( 0xFF - ( backgroundColor > > 16 ) ) ;
byte bgG = ( byte ) ( 0xFF - ( ( backgroundColor > > 8 ) & 0xff ) ) ;
byte bgB = ( byte ) ( 0xFF - ( backgroundColor & 0xff ) ) ;
int [ ] c = new int [ ] { bgR , bgG , bgB } ;
for ( int i = 0 ; i < width ; i + + ) {
for ( int j = 0 ; j < height ; j + + ) {
grid . setPixel ( i , j , c ) ;
}
}
}
//}
}
public BufferedImage getImage ( ) {
@ -215,6 +202,32 @@ public class ymageMatrix /*implements Cloneable*/ {
}
}
public void lineDot ( int x0 , int y0 , int x1 , int y1 , int radius , int distance , long lineColor , long dotColor ) {
// draw a line with a dot at the end.
// the radius value is the radius of the dot
// the distance value is the distance of the dot border to the endpoint
// compute first the angle of the line between the points
double angle = ( x1 - x0 > 0 ) ? Math . atan ( ( ( double ) ( y0 - y1 ) ) / ( ( double ) ( x1 - x0 ) ) ) : Math . PI - Math . atan ( ( ( double ) ( y0 - y1 ) ) / ( ( double ) ( x0 - x1 ) ) ) ;
// now find two more points in between
// first calculate the radius' of the points
double ra = Math . sqrt ( ( double ) ( ( x0 - x1 ) * ( x0 - x1 ) + ( y0 - y1 ) * ( y0 - y1 ) ) ) ; // from a known point x1, y1
double rb = ra - radius - distance ;
double rc = rb - radius ;
//System.out.println("CONTROL angle = " + angle);
//System.out.println("CONTROL x1 = " + x1 + ", x1calc = " + ((x0 + ((int) ra * Math.cos(angle)))));
//System.out.println("CONTROL y1 = " + y1 + ", y1calc = " + ((y0 - ((int) ra * Math.sin(angle)))));
// the points are on a circle with radius rb and rc
int x2 = x0 + ( ( int ) ( rb * Math . cos ( angle ) ) ) ;
int y2 = y0 - ( ( int ) ( rb * Math . sin ( angle ) ) ) ;
int x3 = x0 + ( ( int ) ( rc * Math . cos ( angle ) ) ) ;
int y3 = y0 - ( ( int ) ( rc * Math . sin ( angle ) ) ) ;
setColor ( lineColor ) ;
line ( x0 , y0 , x3 , y3 ) ;
setColor ( dotColor ) ;
dot ( x2 , y2 , radius , true ) ;
}
public int [ ] getColor ( int x , int y ) {
int [ ] c = new int [ 3 ] ;
return grid . getPixel ( x , y , c ) ;
orbiter
18 years ago