2D labels size wrong if saved image size not same as window size

[vadim.kotov@…]

The following bug report has been submitted:
Platform:        Linux-3.10.0-1062.9.1.el7.x86_64-x86_64-with-centos-7.7.1908-Core
ChimeraX Version: 0.93 (2020-04-03)
Description
On saved images (and movies, too) 2d labels are only displayed correctly if the saved image size is identical to the window size. I guess this happens because the label size is set in pt, but not in some relative units. An example script is attached.

Log:
UCSF ChimeraX version: 0.93 (2020-04-03)  
© 2016-2020 Regents of the University of California. All rights reserved.  
How to cite UCSF ChimeraX  

> open2 /beegfs/cssb/user/kotovvad/200210_XylE_movie/bug4.cxc

> open 4gby

Summary of feedback from opening 4gby fetched from pdb  
---  
note |  
  
  
| Summary of feedback from opening
/home/kotovvad/Downloads/ChimeraX/PDB/4gby.cif  
  
---  
  
  
  
  
warning | Unable to infer polymer connectivity due to unspecified label_seq_id
for residue "XYP" near line 4750  
  
  
  
  
  
4gby title:  
The structure of the MFS (major facilitator superfamily) proton:xylose
symporter XylE bound to D-xylose [more info...]  
  
Chain information for 4gby #1  
---  
Chain | Description  
A | D-xylose-proton symporter  
  
Non-standard residues in 4gby #1  
---  
BNG — B-nonylglucoside  
XYP — β-D-xylopyranose  
  
  

> windowsize 400 300

> 2dlabels text 2dlabel

> save test1.png

> save test2.png width 1600 height 900

executed bug4.cxc  




OpenGL version: 3.3.0 NVIDIA 440.33.01
OpenGL renderer: Quadro M6000/PCIe/SSE2
OpenGL vendor: NVIDIA Corporation
Manufacturer: Supermicro
Model: SYS-1028GQ-TRT
OS: CentOS Linux 7 Core
Architecture: 64bit ELF
CPU: 40 Intel(R) Xeon(R) CPU E5-2640 v4 @ 2.40GHz
Cache Size: 25600 KB
Graphics:
	02:00.0 VGA compatible controller [0300]: NVIDIA Corporation GM200GL [Quadro M6000] [10de:17f0] (rev a1)
	Subsystem: NVIDIA Corporation Device [10de:1129]
	Kernel driver in use: nvidia
File attachment: bug4.cxc

bug4.cxc​

[vadim.kotov@…]

Added by email2trac

[Tom Goddard]

Fixed.

2D labels were stretched when saved image had different aspect ratio then on screen window. Also an image twice as large in pixels had labels that were half size relative to molecular models compared to on screen. I made the labels have the same relative size in the image as shown on screen.