2D array into graphicview to create Objects from 2D-Array
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QPixmap outPixmap = QPixmap(xarrSize,yarrSize); outPixmap.loadFromData(grid); // Bild-Datei anzeigen ui->label->setPixmap(outPixmap); ui->label->show();but doesn't know the loadFromData..
i will try morewrote on 25 May 2020, 13:12 last edited by@projectbavaria said in 2D array into graphicview to create Objects from 2D-Array:
outPixmap.loadFromData(grid);
but doesn't know the loadFromData..What type is
grid? If it's yourchar grid[xarrSize][yarrSize]then your call does not correspond to either overload https://doc.qt.io/qt-5/qpixmap.html#loadFromData or https://doc.qt.io/qt-5/qpixmap.html#loadFromData-1. -
@projectbavaria said in 2D array into graphicview to create Objects from 2D-Array:
outPixmap.loadFromData(grid);
but doesn't know the loadFromData..What type is
grid? If it's yourchar grid[xarrSize][yarrSize]then your call does not correspond to either overload https://doc.qt.io/qt-5/qpixmap.html#loadFromData or https://doc.qt.io/qt-5/qpixmap.html#loadFromData-1.wrote on 25 May 2020, 13:15 last edited by projectbavaria@JonB it is a 2D Array -> array Char [x][y]
yeah i will look on your link -
wrote on 25 May 2020, 15:40 last edited by
can't go on i will look From Matrix to QImage and QPixmap on forum.. maybe that will help
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Hi,
Do you mean you have a two dimensional array of chars that you want to build a grid with and that each of the cell of that grid shall contain the letter at that point of the array ?
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Hi,
Do you mean you have a two dimensional array of chars that you want to build a grid with and that each of the cell of that grid shall contain the letter at that point of the array ?
wrote on 26 May 2020, 00:49 last edited byThis post is deleted! -
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wrote on 26 May 2020, 12:37 last edited by@projectbavaria 
image url) -
wrote on 26 May 2020, 15:09 last edited by
now i getting a black screen and try to go on
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From what you posted, there's nothing added to the scene and your view seems to be a local variable so unless it's in your main function body, it will be destroyed before you can even see it.
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From what you posted, there's nothing added to the scene and your view seems to be a local variable so unless it's in your main function body, it will be destroyed before you can even see it.
wrote on 26 May 2020, 19:05 last edited by projectbavaria@SGaist but before i destroying it i have to handle that i want to save my array(inside there are my chars) as a QtPiximap -> after that i can show it in GraphisScene ?
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Except that you are not using your array to draw anything. You are using a QBitArray which contains nothing to draw on a image that you then use as brush.
You should start by just drawing on that QImage properly and set it on a QLabel to see what it would look like. And once you have that working, come back to your QGraphicsView part.
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Except that you are not using your array to draw anything. You are using a QBitArray which contains nothing to draw on a image that you then use as brush.
You should start by just drawing on that QImage properly and set it on a QLabel to see what it would look like. And once you have that working, come back to your QGraphicsView part.
wrote on 26 May 2020, 21:34 last edited by@SGaist okey i will try
12/14