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Questions tagged [pixmap]

123 questions
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How to draw rotated image on pixmap (LibGDX)

How can I draw an image to Pixmap, but rotated by some angle, like I can do when drawing on Batch? There is no Pixmap method that has an angle as parameter, like batch drawing methods have.
MilanG
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Tint a pixmap in with libgdx

I posted a question about drawing text onto a pixmap to generate dynamic textures at runtime, and that problem was resolved here Is there an easy way that I can tint the font that I copy to a new pixmap, or do I need to do it manually pixel by…
Will Calderwood
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Using filledcircle and pixmap in libgdx

I am using Libgdx. I want to simulate fog in my game using pixmap, but I have a problem during generating the "fogless" circle. First, I make a pixmap, filled with black (it is transparent a little bit). After filling I want to draw a filled circle…
user2498846
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Overlap Pixmap in a Texture

I would like to overlay two images in a texture in libgdx dynamically. I tried to create two pixmap and then draw them into a texture. The problem is that the region of the transparent png on the highest level delete the picture in the background.…
user1169390
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Upload part of Pixmap into GPU

I would like to upload part of Pixmap (specified Rectangle of it) to Texture in GPU (at specified position). What i would like to achieve is void updateTextureFromPixmap(sourcePixmap,sourceRectangle,destTexture, destRectangle) { …
Paweł
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Convert Gdk.Pixbuf to System.Drawing.Bitmap?

How do you convert a Gdk.Pixbuf (_pixbuf below) into a Windows Forms (System.Drawing) Bitmap? Below is code that uses Gtk.DotNet.Graphics, but it just gives a white image. Is there a better, more direct way, that works? I'm using C# on Mono, but I…
Doug Blank
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ios bitmap pixels manipulation

I want to manipulate individual pixels on iOS, high performance preferably, but I am not sure where to start looking. Any good links to docs and samples? What choices there are?
exebook
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R language: pixmap scale and rotate?

there What is the best way to rotate and scale a pixmap or rtiff object? Perhaps I have missed the facilities, but it seems the pixmap and rtiff packages don't have these features. Appreciate your help.
user1973511
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view image on button click. qt

I created a label in my main window and its size is set to 200x300px. now on a button click i need to view a image in it. here is the slot function of the button. void MainWindow::function1(){ QImage img; img.loadFromData("test.jpg"); img =…
danial weaber
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How to save the image in a resized QLabel?

I have a QLabel that is loaded with a pixmap. I have it set so that when the window/QLlabel is resized, the image of the qlabel resizes as well. However, when I try to save the image and retrieve the pixmap, it is the original loaded. How would I…
carboncomputed
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What is the most efficient way to display multiple pixmaps into a scroll area?

I am trying to make an application that displays a PDF file, using PyQt4 and python-poppler-qt4. So far I have managed to display the entire document by loading pixmaps generated with Poppler, set on a QLabel and appended to a QFrame. The QFrame is…
neydroydrec
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Gdk-WARNING **: /build/....../gdkdrawable-x11.c:952 drawable is not a pixmap or window

My OS is Ubuntu 11.10, I started Sublime Text 2 from the terminal, everytime when I operated it, this Gdk-warning will be shown on the terminal, it's very annoying. How to fix it? $ subl . & [1] 4294 $ (subl:4294): Gdk-WARNING **:…
khakistone
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faster redraw of pygtk drawing area?

I'm creating a paint program based on this program. Dragging the mouse faster results in spotty brush strokes, so I'm wondering if there is a faster way to redraw the drawing area. This is the current redraw function. It is already utilizing…
Claire
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How do you save a .pnm plot in R interactive session?

I'm using the pixmap library here. For instance, I have some grid.pnm file I want to save in interactive mode. It seems like there are only save options for more common extensions such as jpeg, png, etc. > grid <- read.pnm("grid.pnm") >…
CyberShot
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PyQt5 display image of pixel array

He||o, What I want to do : I have an array of 22x22 pixel of value between 0 and 255 (8 bit grayscale). What I have done : I was able to display it using matplotlib but now I want to plot it inside a PyQt5 interface. When I create a pixmap and set…
GaetanG
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