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java.awt.Graphics

5 replies on 1 page. Most recent reply: Oct 26, 2006 11:40 PM by Z L

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Nancy

Posts: 11
Nickname: ac121107
Registered: Feb, 2004

java.awt.Graphics

Posted: Mar 16, 2004 6:07 AM

Is there something like g.drawline to draw a dash line?
Thanks
Nancy

Viswanatha Basavalingappa

Posts: 84
Nickname: viswagb
Registered: Nov, 2003

Re: java.awt.Graphics

Posted: Mar 16, 2004 7:37 AM

Hi

java.lang.Object
|
+---java.awt.Component
|
+---java.awt.Canvas
|
+---Curveline

go to this class and method drawBigPointDottedLine ()

here is ..
public void drawBigPointDottedLine(Graphics tempGraphics,
int x1,
int y1,
int x2,
int y2,
int numOfDots)

This routine draws a dotted line between two points, using a large dot.

I hope this helps you..
Viswa
---------

Viswanatha Basavalingappa

Posts: 84
Nickname: viswagb
Registered: Nov, 2003

Re: java.awt.Graphics

Posted: Mar 16, 2004 7:42 AM

SOrry, the early reply I gfave was 3rd party API, if you are uding JDK 1.2 then see bellow code it will help you...

Use Java2D, setting a stroke to the graphics:

Graphics2d g2 = (Graphics2d)g;
float dash1[] = {3.5f};
roundStroke = new BasicStroke(1.5f, BasicStroke.CAP_BUTT, BasicStroke.JOIN_MITER, 10f, dash1, 0.0f);
g2.setStroke(roundStroke);
 
[\java]
 
Viswa
'-------

Viswanatha Basavalingappa

Posts: 84
Nickname: viswagb
Registered: Nov, 2003

Re: java.awt.Graphics

Posted: Mar 16, 2004 7:43 AM

Hi,

Sorry, the early reply I gfave was 3rd party API, if you are uding JDK 1.2 then see bellow code it will help you...

Use Java2D, setting a stroke to the graphics:

Graphics2d g2 = (Graphics2d)g;
float dash1[] = {3.5f};
roundStroke = new BasicStroke(1.5f, BasicStroke.CAP_BUTT, BasicStroke.JOIN_MITER, 10f, dash1, 0.0f);
g2.setStroke(roundStroke);

Viswa
-------

Nancy

Posts: 11
Nickname: ac121107
Registered: Feb, 2004

Re: java.awt.Graphics

Posted: Mar 16, 2004 8:33 AM

Thanks for your help
Nancy

Z L

Posts: 2
Nickname: vitamin
Registered: Oct, 2006

Dashed Line suddenly became Solid Line!

Posted: Oct 26, 2006 11:40 PM

Hi,

Can anyone help me with a problem that I'm facing now?

I managed to draw a dashed line between two rotating objects. However, I noticed that at certain rotating angle, the dashed line become a solid line!

Below is my code:

Graphics2D g2d = (Graphics2D)g;
Line2D line = new Line2D.Double(x1, y1, x2, y2);
float[] dashPattern = {8,18};
g2d.setStroke(new BasicStroke(1.0F, BasicStroke.CAP_BUTT, BasicStroke.JOIN_MITER, 1.0F, dashPattern, 0));
g2d.draw(line);

Thank you.

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