Performance Optimization Settings
Performance in CADian can be optimized using various system variables. Some of the most important ones are listed below.
MULTICORE
Some CADian functions can use multiple CPU cores. This system variable controls how many CPU cores are used.
The default value is 0.
Values
-2 = Automatically selects one of the available CPUs.
If other CADian processes are already running, the CPU with the fewest CADian processes is selected. Otherwise, a random available CPU is chosen.
-1 = uses all available CPUs.
0 = uses the CPU(s) assigned when the program was started.
1 = If CADian processes are already running, CADian selects a single CPU with the fewest CADian processes from all available CPUs. If no other CADian processes are running, a random CPU from the originally assigned CPU list is used.
2 to 64 = uses the specified number of CPUs.
If the value is higher than the number of available CPUs, all CPUs are used automatically.
TEXTQLTY
Controls the display quality of TrueType text.
Values
0 = Draft Quality
Text is displayed faster but with lower visual quality.
100 = High Quality
Text is displayed smoother and cleaner but requires more processing power.
RTDISPLAY
Controls the real-time display of raster images during zoom and pan operations.
Values
0 = Images are displayed during real-time zoom/pan
→ smoother visual display, but higher graphics load
1 = Raster images are not displayed during real-time zoom/pan
→ better performance
The default value is 1.
LINESMOOTHING
Controls anti-aliasing for lines on the screen.
Values
0 = Disabled
No line smoothing. Display performance is faster, but lines appear more jagged.
1 = Enabled
Lines are displayed smoother. Visual quality improves, but more graphics performance is required.
GRAPHICSCONFIG
Opens the graphics performance and hardware acceleration settings.
This command allows adjustment of various graphics features that affect display quality and overall performance, including:
- Hardware acceleration
- Line smoothing
- High-quality geometry
- GPU usage
- Display effects
- Graphics performance options
COMMANDPREVIEW
Controls the display of a live preview during editing commands such as OFFSET, TRIM, EXTEND, FILLET, or CHAMFER.
When this system variable is enabled, CADian displays the expected result of the command before it is confirmed.
Values:
- 0 = Preview disabled (default)
- 1 = Preview enabled
Example: When using the OFFSET command, the position of the offset object is displayed before the side is selected.
ETRACKDELAY
Controls the delay time for the Object Snap Tracking (AutoTrack) feature. It determines how long the cursor must remain over an object snap point before an alignment path is displayed.
- Recommended value: 50
Values that are too low may impact performance, as Object Snap Tracking paths are calculated more quickly and more frequently.