Name: jk109818 Date: 07/22/2002


FULL PRODUCT VERSION :

robo@zwergstern:~/src/java$ java -version
java version "1.4.0"
Java(TM) 2 Runtime Environment, Standard Edition (build 1.4.0-b92)
Java HotSpot(TM) Client VM (build 1.4.0-b92, mixed mode)


FULL OPERATING SYSTEM VERSION :
Debian linux. linux kernel 2.4.18
glibc Version: 2.2.5-6

Problem seems to be the same on windows 2000 with jdk/1.4


A DESCRIPTION OF THE PROBLEM :
I create a GeneralPath with 4 Line2D.Double (I create a
rectangle). After this I call getBounds2D on the GeneralPath
and check that the bounds are what I expect. As it is now
the bounds is different from the coordinates entered.

STEPS TO FOLLOW TO REPRODUCE THE PROBLEM :
1.
Create a file TestGeneralPath.java as given below.

2.
compile the file

3.
run the resulting class.



EXPECTED VERSUS ACTUAL BEHAVIOR :
xmin should be equal to r.xmin.(which is the result of
calling r.getMinX ())
ymin should be equal to r.ymin
xmax should be equal to r.xmax
ymax should be equal to r.ymax

/*********** ACTUAL RESULTS ******************/

robo@zwergstern:~/src/java$ java TestGeneralPath
xmin: 1274316.949063871
ymin: 6397151.433723609
xmax: 1274317.0137960138
ymax: 6397151.517216891
r.xmin: 1274317.0 diff: -0.050936128944158554
r.ymin: 6397151.5 diff: -0.06627639103680849
r.xmax: 1274317.0 diff: 0.013796013779938221
r.ymax: 6397151.5 diff: 0.017216891050338745


Using other values of xmin, ymin, xmax and ymax also seems
to round the r.(x|y)(min|max) the resulting value seems to
be rounded to nearest (?) 0.5.



This bug can be reproduced always.

---------- BEGIN SOURCE ----------
/********* begin file *****************/
import java.awt.geom.*;

public class TestGeneralPath {
    
    public static void main (String[] args) {
double xmin = 1274316.949063871;
double ymin = 6397151.433723609;
double xmax = 1274317.0137960138;
double ymax = 6397151.517216891;

System.out.println ("xmin: " + xmin);
System.out.println ("ymin: " + ymin);
System.out.println ("xmax: " + xmax);
System.out.println ("ymax: " + ymax);

// Create a rectangle..
GeneralPath poly = new GeneralPath ();
Line2D.Double l = new Line2D.Double (xmin, ymin, xmax, ymin);
poly.append (l, true);
l = new Line2D.Double (xmax, ymin, xmax, ymax);
poly.append (l, true);
l = new Line2D.Double (xmax, ymax, xmin, ymax);
poly.append (l, true);
l = new Line2D.Double (xmin, ymax, xmin, ymin);
poly.append (l, true);

Rectangle2D r = poly.getBounds2D ();
System.out.println ("r.xmin: " + r.getMinX () + " diff: " + (xmin - r.getMinX ()));
System.out.println ("r.ymin: " + r.getMinY () + " diff: " + (ymin - r.getMinY ()));
System.out.println ("r.xmax: " + r.getMaxX () + " diff: " + (xmax - r.getMaxX ()));
System.out.println ("r.ymax: " + r.getMaxY () + " diff: " + (ymax - r.getMaxY ()));
    }
    
}
/******************** end file ************/
---------- END SOURCE ----------
(Review ID: 153563)
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