CODEWITHSUNDEEP
qtqpainterqimageqpixmap
Priyanka Vishnoi
Priyanka Vishnoi

Reputation: 1

How do I increase the pixel density in Qpixmap?

I want to increase pixel density per unit area on every zoom operation in 'QPixmap'. To increasing pixel density I create pixmap on every zoom according to the rectangle get from sceneboundingrect() but I think it does not increase the pixel density

Upvotes: 0

Views: 381

Answers (1)

dtech
dtech

Reputation: 49319

The QPixmap is a raster image, that means a finite amount of pixels, making it bigger will not make it clearer (as it does on CSI).

You will need a considerably bigger / larger resolution image to begin with, then you will downsample it when you render it "un-zoomed" and the more you zoom in the closer you render it to its original size.

Upvotes: 1

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