Mirror or Flip (Page 1 of 2)

Is there any pretense of adding this very useful tool to the program even in a paid version?

Bump!

I found this post regarding mirroring of QGraphicsItems: https://stackoverflow.com/questions/106 … left-right
Apparently you can simply apply

item->setTransform(QTransform::fromScale(-1, 1))

I could not try it out myself, as compiling QET on windows is quite a hassle.

Even if it wouldn't be perfect (as I expect letters and numbers to be mirrored as well) it would be very useful.

In my opinion it wasn't very hard to implement a mirror- or flip-function for QET_ElementScaler!
You need a loop to walk through the x- and y-values of a polygon to get the min- and max-values.
In a second step you loop through the x-and y-values again and calculate the new x- and y-values.

These vertical and horizontal flip-functions are implemented in the new version of QET_ElementScaler!

I do not know the internals of how polygons are saved in QET internally, but I guess it should be possible to implement this with manageable effort for someone who knows the internals...

In QET_ElementScaler it is implemented this way:

double dMin = 9.99e99;
double dMax = -9.99e99;
// first FOR-Loop for x-values:
for (loop through x-values) {
    dMin = min(actValue, dMin);
    dMax = max(actValue, dMax);
}
// second FOR-Loop for x-values:
for (loop through x-values) {
    newValue = (dMin + dMax) - actValue)
} 

It may not be the most elegant way to flip or mirror elements but it works.
I have tried this flipping / mirroring on several elements and could not find any malfunctions! 

But you may try for yourself! 
Create a "scaled" QET-Element and copy-paste the flipped polygon to your Element.

you may call it like this:

QET_ElementScaler --FlipPolyHorizontal -f YourElementFile.elmt
or
QET_ElementScaler --FlipPolyVertical -f YourElementFile.elmt

This results in a new element-file where ALL lines and polygons are flipped.

See post here: https://qelectrotech.org/forum/viewtopi … 808#p16808

the sub-directories need to exist before compiling... 
will add creation of sub-dirs in the shell-scripts later!

EDIT: DONE!   

Fixed! ;-)

laurent@debian:/media/backup6/download/QET_ElementScaler$ mkdir -p obj/inc/pugixml
laurent@debian:/media/backup6/download/QET_ElementScaler$ ./compile.sh 

#!/bin/sh

# compile QET_ElementScaler

g++  -c inc/pugixml/pugixml.cpp -o obj/inc/pugixml/pugixml.o
g++  -c main.cpp -o obj/main.o
g++ -o  QET_ElementScaler obj/inc/pugixml/pugixml.o obj/main.o  -s

Great

laurent@debian:/media/backup6/download$ git clone https://github.com/plc-user/QET_ElementScaler.git
Cloning into 'QET_ElementScaler'...
remote: Enumerating objects: 107, done.
remote: Counting objects: 100% (107/107), done.
remote: Compressing objects: 100% (101/101), done.
remote: Total 107 (delta 53), reused 20 (delta 4), pack-reused 0
Receiving objects: 100% (107/107), 116.45 KiB | 2.48 MiB/s, done.
Resolving deltas: 100% (53/53), done.
laurent@debian:/media/backup6/download$ ^C
laurent@debian:/media/backup6/download$  cd /media/backup6/download/QET_ElementScaler
laurent@debian:/media/backup6/download/QET_ElementScaler$ ./compile.sh 
laurent@debian:/media/backup6/download/QET_ElementScaler$ 

just uploaded new source-code:
- positions for terminals are always rounded without decimals
- when removing all terminals, the "link_type" is set to "thumbnail"

sorry, I don't have any access to mac's ...
upload of new binaries for Linux and ReactOS will follow soon.

Like me also , but I use this KVM for QET OSX packaging on my Debian SID setup, after if users want to send me a mac pro workstation (cost of purchase ~ 24 000 to 45 000 €) why not. But I prefer running Debian..
BTW when you have not money or hardware for you try other workarounds or hacks for run and compile for this OSX, like me whit my Threadripper workstation 3960X.
I have a OSX VM with I send 24 threads CPU and 24G off RAM (my setup: 3960X 24 cores 48 Threads +64G RAM
linux debian 6.0.0-vanilla #1 SMP PREEMPT_DYNAMIC Tue Oct 4 15:13:44 CEST 2022 x86_64 GNU/Linux
), just not time to try GPU passtrough hacks with my old RX 550 (hum lexa model not Baffin shit.!!!..) no GPU acceleration is available yet, for faster and better 2D rendering and debug on OSX.
https://www.reddit.com/r/VFIO/comments/ … x_550_gpu/
Compil and build bundle only takes me a few minutes like others OS packaging..
see https://qelectrotech.org/forum/viewtopi … 576#p16576

The lines and polygons are flipped one-by-one!
That's why I say

in the help of QET_ElementScaler and the README on github.

If we can limit ourselves (at least for now) to applying flipping and mirroring to individual polygons, I can definitely imagine this variant in QET as well!
In the context menu (right-click) there is also the possibility to add or remove points only for polygons.
Maybe this is a way to quickly integrate "flipping"? It seems to be needed every now and then, otherwise this thread would not exist...

Not a binary...

You forgot to make it executable and rename it without point.
Rename it to QET_ElementScaler_x86_64-apple-darwin21-6-0-0

But it 's strange  I don't use if I'm remember chmod to make it executable... saw my previous capture.

After chmod +x is work