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Java Forum / GUI / October 2007rotating text problem
Hi, I have problem with a piece of code (see below). When the text is rotated on my panel it seems that the coordinate system is corrupt. If I put something on x,y = 100, 200 it looks that the object is put somewhere else. I think it has to do with the rotation. How can i go back to the norm coordinate system/ PS : The rotation works fine for the first time Johan void paintComponent() { Graphics2D g2 = (Graphics2D)g; AffineTransform af = new AffineTransform(); af.translate(100.,50.); af.rotate(Math.PI / 2); FontRenderContext renderContext = new FontRenderContext(null, false, false); g2.transform(af); TextLayout layout = new TextLayout("This text is rotated", g2.getFont(), renderContext ); layout.draw(g2, 0, 0); } > Hi, > > I have problem with a piece of code (see below). When the text is rotated on > my panel it seems that the coordinate system is corrupt. The coordinate system is not corrupt, it is rotated. Reset it to its original specs and it behaves like it originally did. ... >I have problem with a piece of code (see below). Why are you wasting your time, and our bandwith, posting these rubbish snippets. Not only is this incompilable because it is incomplete, but it is not even the code being used. I can infer that because.. >void paintComponent() { > Graphics2D g2 = (Graphics2D)g; D:\RotatedTextPanel.java:N: cannot find symbol symbol : variable g location: class RotatedTextPanel Graphics2D g2 = (Graphics2D)g; ^ Note also that the method you are attempting to override there, is public. Why not progress this by posting an SSCCE? <http://www.physci.org/codes/sscce.html>  SignatureAndrew Thompson http://www.athompson.info/andrew/ > .. >>I have problem with a piece of code (see below). [quoted text clipped - 3 lines] > incompilable because it is incomplete, but it is not > even the code being used. I can infer that because.. Please don't waste our time and bandwidth posting rubbish that doesn't even attempt to help the orignal poster. The problems is that you're not getting a fresh Graphics object each time the paint is called, it an retain the transformation from the previous time. You need to either reset the transformations before you return on instead get a copy of the Graphics object using something like Graphics2D g2Copy = (Graphics2D)g.create(); and work with that instead. Probably best to dispose of the copy at the end of the method g2Copy.dispose() >> .. >>>I have problem with a piece of code (see below). [quoted text clipped - 17 lines] > Probably best to dispose of the copy at the end of the method > g2Copy.dispose() Hi, thanks, using a copy was the trick Johan > .. >>I have problem with a piece of code (see below). [quoted text clipped - 18 lines] > Why not progress this by posting an SSCCE? > <http://www.physci.org/codes/sscce.html> I am interrested in solving my problem and do not want to put a complete java program here. I understand that it needs several import etc to get this working. I find it very stupid if you try this piece of code and try to run. Every idiot understand this is not a complete java program. So stick to the question. In fact you did not give a solution, maybe yo not understand java. The poster John Burton has a good solution. Johan >I find it very stupid if you try this piece of code and try to run. Every >idiot understand this is not a complete java program. So stick to the >question. In fact you did not give a solution, maybe yo not understand java. >The poster John Burton has a good solution. If you post a SSCCE it makes it much easier for others to explore your problem. You will get more responses and higher quality ones. See http://mindprod.com/jgloss/sscce.html Be careful about biting the hand attempting to feed you, even when that hand is connected to a scolding mouth. You can find yourself quickly killfiled by people other than the scolder. The reason is simple. They don't want to be snapped at too if they produce a less than perfect response for your highness. SignatureRoedy Green Canadian Mind Products The Java Glossary http://mindprod.com "Bruintje Beer" wrote, quoted or indirectly quoted someone who said : >> I find it very stupid if you try this piece of code and try to run. Every >> idiot understand this is not a complete java [sic] program. So stick to the >> question. In fact you did not give a solution, maybe yo [sic] not understand java. >> The poster John Burton has a good solution. I see no reason for you to insult Andrew. He didn't insult you. You asked for our help, remember? You might try being less rude. SignatureLew > "Bruintje Beer" wrote, quoted or indirectly quoted someone who said : >>> I find it very stupid if you try this piece of code and try to run. [quoted text clipped - 4 lines] > I see no reason for you to insult Andrew. He didn't insult you. You > asked for our help, remember? You might try being less rude. No hard feelings Johan >I see no reason for you to insult Andrew. He didn't insult you. You asked >for our help, remember? You might try being less rude. "Why are you wasting your time, and our bandwidth, posting these rubbish snippets." ~ Andrew Andrew was doing his usual haze the newbies thing that at times tempts to me have contract put out on him. It is no wonder newbies snap back at his needlessly sharp barbs. However my comments about not complaining about responses to requests for help no matter how socially inept still stands. SignatureRoedy Green Canadian Mind Products The Java Glossary http://mindprod.com >> I see no reason for you to insult Andrew. He didn't insult you. You asked >> for our help, remember? You might try being less rude. [quoted text clipped - 10 lines] > However my comments about not complaining about responses to requests > for help no matter how socially inept still stands. I saw no comment from Andrew about the poster, only the code. And he had a point. I agree with you, Roedy. Even to the rudest of posters it is more high-minded to respond high-mindedly. I just don't think we should rename this group comp.lang.java.dont.step.on.my.namby.pamby.feelings. SignatureLew >: The rotation works fine for the first time see http://mindprod.com/jgloss/affinetransform.html for sample code to save and restore the transform. SignatureRoedy Green Canadian Mind Products The Java Glossary http://mindprod.com Free MagazinesGet these publications absolutely FREE for up to 12 months. There are no hidden fees and no obligation. Simply choose a title, complete the application form and submit it. Read more ...
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