From this post:
OpenCPN Beta Version 3.3.2410 Released
I just noticed that some marks are not drawn when panning ENC charts. The effect is bigger when panning slowly using cursor keys. It can be "fixed" by changing zoom levels back and forth (or probably anything that triggers a redraw).
The following 2 sceenshots showing the San Mateo Bridge in San Mateo, CA illustrate the problem. The first one shows the display after panning so that the center span of the bridge is no longer shown and then - using cursor keys - slowly getting the center span of the bridge back into the view. The second one shows the same after a `-`,`+` (ie zooming out and in again).
I can't try right now if that also happens when on the boat but if so that could be potentially bad because you could miss lots of marks etc. on the charts as you sail along.
Missing buoys, San Mateo. I cannot reproduce this effect. Are you using OpenGL? Same without OpenGL? Logfile output related to OpenGL?
Anyone else see missing symbols on slow pan?
Yes, only seems to happen in OpenGL (on Ubuntu 14.10 64bit with Intel i915 driver). Also only seems to happen on upper and left border of the view, not on lower or right one. log file is appended, but I see nothing special in there.
3.3.1606 aka git commit f481afa and that has the same behavior.
Bdcat San Mateo buoys... Just to confirm the situation: I can reproduce this only if...
1. Start O
2. Shift to non OpenGL mode
3. Exit O
4. Start O
5. Shift to OpenGL mode
6. pan slowly, bringing the buoys onto screen from left.
This is the only scenario I can reproduce. If I start in OpenGL mode, all is well.
Its only when switching from dc into OpenGL for the first time that I see this.
Attached are two files. Win7 system recent compile.
SanMateo-Pan-nobouy.png - When you zoom in the Red shows slightly, no green
SanMateo-Zoom-bouy.png - Both bouys show.
--Are the bouys actually there, but sized too small to see?