2017-08-02 7:05 GMT-03:00 Adrien Prokopowicz <adrien.prokopow...@gmail.com>:
Le Wed, 02 Aug 2017 03:38:33 +0200, Fernando Cabral < > fernandojosecab...@gmail.com> a écrit: > > Besides, I have a question: when a drawing area is created, it (0,0) >> supposed to be the central point? >> >> > No. Unlike math where the origin (0,0) is usually represented in the > center, > the origin of screen coordinates is always located in the top-left corner. > > If you want the actual center of your DrawingArea, you will have to use > the following coordinates : > > x = DrawingArea.Width / 2 > y = DrawingArea.Height / 2 > Problem is: this simple instruction "Paint.MoveTo(0, 0)" moves the cursor to the center of the drawing area. I expected it to move it to the left superior corner. I can't figure why. Regards - fernando > Hope this helps. :-) > > Regards, > > [0] http://gambaswiki.org/wiki/comp/gb.qt4/drawingarea > [1] http://gambaswiki.org/wiki/comp/gb.qt4/drawingarea/cached > [2] http://gambaswiki.org/wiki/comp/gb.qt4/drawingarea/refresh > > -- > Adrien Prokopowicz > -- Fernando Cabral Blogue: http://fernandocabral.org Twitter: http://twitter.com/fjcabral e-mail: fernandojosecab...@gmail.com Facebook: f...@fcabral.com.br Telegram: +55 (37) 99988-8868 Wickr ID: fernandocabral WhatsApp: +55 (37) 99988-8868 Skype: fernandojosecabral Telefone fixo: +55 (37) 3521-2183 Telefone celular: +55 (37) 99988-8868 Enquanto houver no mundo uma só pessoa sem casa ou sem alimentos, nenhum político ou cientista poderá se gabar de nada. ------------------------------------------------------------------------------ Check out the vibrant tech community on one of the world's most engaging tech sites, Slashdot.org! http://sdm.link/slashdot _______________________________________________ Gambas-user mailing list Gambas-user@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/gambas-user
