QImage to Image

Comments

• RawrRanger

  July 2023

  HI TTR572

  Assuming your are trying to save a QImage data into a image file, you can simply use the save function.

  #image is QImage
  image.save("file_path/file_name.png")
  

  If you like to show the image in you widget, you can use QLabel widget to hold thoes Pixels, and add the QLabel into you widget.

  #image is QImage
  imageLabel = RBA::QLabel.new()
  imageLabel.setPixmap(QPixmap::fromImage(image))
  #this turns Qimage into Pixel data
  
• TTR572

  July 2023

  Hi RawrRanger,

  thanks for your suggestion. What I am trying to do is to transmit images from another process to KLayout via Shared Memory. I am asking the question, because I haven't found a method of the Image Class to read the image data from a byte stream, while with QImage, one can do such a thing. So I was wondering if there was a way to turn a QImage into an Image (of the Image Class), because the cell view's insert_image method only takes an instance of the Image Class as an input, but not a QImage.

  Kind Regards
  Thomas
• Matthias

  July 2023

  Hi @TTR572,

  No, right now there is only the temp file approach or using (slow) pixelwise transfer.

  If you want creation from a bytestring or QImage or PixelBuffer (without Qt) raise a ticket on GitHub.

  Matthias
• TTR572

  July 2023

  Hi Matthias,
  thanks for your feedback. I will continue to look for solutions.

  Kind Regards
  Thomas
• Matthias

  July 2023

  I have created this PR to fix your problem: https://github.com/KLayout/klayout/pull/1436

  Matthias