QPixmap size limit
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wrote on 18 Jun 2019, 06:27 last edited by
Hi,
I need to use a QPixamp with a width of at least 35000, but if I read well from the documentation the QPixamp it is limited to 32768.
Is there a way to overcome this limit?Thanks
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Hi,
I need to use a QPixamp with a width of at least 35000, but if I read well from the documentation the QPixamp it is limited to 32768.
Is there a way to overcome this limit?Thanks
@Gianluca86-0 said in QPixmap size limit:
QPixamp it is limited to 32768
from where exactly do you have this information? Width and height are both int.
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Hi
As far as i know, there is no way to increase it.Can you explain what you need such large bitmap for ?
It will take 1 GB of memory or more and be ultra heavy to do anything with.
Maybe there is another way to archive what you want. -
wrote on 18 Jun 2019, 06:59 last edited by
@mrjj: I need to create and manage images from 3000x50 mm to 400 DPi (even over 3 meters, but always at minimum height).
I only see one image at a time on a QPainter, so I have no memory problems.
I would like to avoid reducing the DPi or dividing the image into 2 or more QPixmaps, any suggestions? -
@mrjj: I need to create and manage images from 3000x50 mm to 400 DPi (even over 3 meters, but always at minimum height).
I only see one image at a time on a QPainter, so I have no memory problems.
I would like to avoid reducing the DPi or dividing the image into 2 or more QPixmaps, any suggestions?@Gianluca86-0
Hi
I think you will have to divide it into 2 or more to handle it.
Not only due to the limitation in QPixmap but also due to limits from the operating system. -
@Gianluca86-0
Hi
I think you will have to divide it into 2 or more to handle it.
Not only due to the limitation in QPixmap but also due to limits from the operating system.wrote on 18 Jun 2019, 07:27 last edited by@mrjj Thanks for the help
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