Image import restricted to pixel size?

QCAD Professional QCAD Troubleshooting and Problems
1

QCAD Version: 3.33.0.0
Downloaded package (file name): qcad-3.33.0-pro-linux-qt6-x86_64.run
Operating System: Linux (OpenSuse Tumbleweed)

I proceed like this:

Importing/inserting an image (here: *.jpg) with shortcut “IM”

This is what I expect to happen:

Image is inserted at the choosen location with the appropriate width and height.

This is what happens instead:

  • Large images (here: 18000 x 15000) are not shown at the cursor.
  • Image is inserted as a point with width 0 and height 0.
  • No possibility to apply width and height before and after insertion (input gets reset to zero).

There is no problem with smaller images (e.g. 2000 x 2000 pixels).

There is also no problem in QCADPro version qcad-3.32.6-pro-linux-qt5.14-x86_64.

I have attached to screenshots. Second one shows the selection of the image missing at the cursor. First one shows the inserted and selected image as a point with size zero.

QCADPro_Image_Import_2
QCADPro_Image_Import_22560×1440 321 KB

QCADPro_Image_Import_1
QCADPro_Image_Import_12560×1440 297 KB

2

Thanks for the detailed report.

This is caused by the image memory limit that was introduced to keep QCAD from running out of memory with very large raster images. At 18000 x 15000 pixels the decoded image needs roughly 1GB of RAM, which is well above the default limit of 256MB, so the image is rejected and ends up with zero width and height (the image is still inserted and will be rendered once preferences allow for it).

You can raise the limit in:
Edit > Application Preferences > Graphics View > Appearance > Display and Performance > Allocation limit for bitmaps (MB)

Set it high enough to cover your image (e.g. 2048MB), restart QCAD and try the import again.

A helpful warning message has been added for the next release.