Hi,
There is nothing wrong with the pattern files themselves.
They should be installed as
*.pat files directly under the folder that you mentioned.
Remark that the Zipper holds two sub-folders, one for MACOSX and one for other OS types.
You need to extract the 25 pattern files for your OS.
QCAD does not search for patterns in sub-folders of
...\QCAD\patterns\imperial or
...\QCAD\patterns\metric
(Where the 3 dots stands for the installation path of QCAD)
The MACOSX files are no valid
*.pat files, I think they are download links or cloud based references.
Another option is to install them in the user local data location path.
See changelog 3.26.2 (2021/04/15)
https://www.ribbonsoft.com/en/documentation/changelog/
Especially for Windows users without Admin rights.
For example Windows:
C:/Users/[Username]/AppData/Local/QCAD/QCAD/patterns/[metric or imperial]/*.pat
These will complement or supersede those of the main pattern folder.
Now don't hold your breath with fancy and elaborated hatch patterns from
www.AUTOCADhatch.com aka
https://www.cadhatch.com/
Systematically these can slow down QCAD.
The main reason why I ceased with further development of
Tile2Hatch, unreleased in general so far.
This QCAD tool can turn every line-art into a hatch pattern matching the highest standards and much more.
The first and simple example I studied (
HWDLN1E1.pat) had 238 definitions and a total cloning load of 244.
Meaning that 244 patterned lines cross every tile.
QCAD has to render all these dashed/dotted lines before cropping them to the hatch boundary(-ies).
5 dots strings are declared twice for no good reason.
The exact same hatch can be written in 211 lines with specialized techniques at no extra rendering effort.
At first glance I am about sure that I can simplify this pattern by at least 50%.
And this by merging a few (N) of the meaningful 196 dots in the same definition line with load = 1 instead of N.
I even think that it is a metric pattern because it repeats every 60 by 60 units.
Then a tile in inches is a piece of wood of about 1.5 by 1.5 meters at unit scale.
The lower the scale the more dashes/dots on more parallel cloned patterned lines ... What renders slower ...
HWOD40E1.pat: 423 definitions, 50x50units tile, total cloning load of 597, can be written in 190 lines.
- HWOD40E1byCVH.pat
- Export by Tile2Hatch beta v0.17 © CVH
- (10.52 KiB) Downloaded 1093 times
Regards,
CVH
