Mirroring in LDPE

[Willy Tschager]

I know that for example scaling on Y for -1 mirrors this:

2 2 15.315 -9.5 8.75 25.452 -9.5 8.75
2 2 25.452 -9.5 -8.75 15.315 -9.5 -8.75
2 2 25.452 -9.5 -8.75 25.452 -9.5 8.75
2 2 32.5 -12 8.75 15.315 -12 8.75
2 2 28.5 -12 8.75 32.5 -12 8.75
2 2 28.5 -12 -8.75 15.315 -12 -8.75
2 2 15.315 -12 -8.75 32.5 -12 -8.75
1 2 28.5 -12 -8.75 -2.82843 0 2.82843 2.82843 0 2.82843 0 17.5 0 3-8cylo.dat
1 2 28.5 -12 8.75 4 0 0 0 0 4 0 -1 0 3-8disc.dat
1 2 28.5 -12 -8.75 4 0 0 0 0 4 0 1 0 3-8disc.dat
4 2 15.315 -12 8.75 28.5 -12 8.75 25.452 -9.5 8.75 15.315 -9.5 8.75
4 2 15.315 -12 -8.75 15.315 -9.5 -8.75 25.452 -9.5 -8.75 28.5 -12 -8.75
4 2 25.672 -9.172 -8.75 25.452 -9.5 -8.75 25.452 -9.5 8.75 25.672 -9.172 8.75
3 2 15.315 -9.5 -8.75 19.105 -9.5 -6.056 25.452 -9.5 -8.75
3 2 25.452 -9.5 -8.75 19.105 -9.5 -6.056 21.225 -9.5 -3.616
3 2 25.452 -9.5 -8.75 21.225 -9.5 -3.616 21.849 -9.5 -1.594
4 2 21.849 -9.5 -1.594 21.905 -9.5 0 25.452 -9.5 8.75 25.452 -9.5 -8.75
3 2 25.452 -9.5 8.75 21.905 -9.5 0 21.849 -9.5 1.594
3 2 25.452 -9.5 8.75 21.849 -9.5 1.594 21.225 -9.5 3.616
3 2 25.452 -9.5 8.75 21.225 -9.5 3.616 19.105 -9.5 6.056
3 2 25.452 -9.5 8.75 19.105 -9.5 6.056 15.315 -9.5 8.75
3 2 15.315 -12 8.75 20.4 -12 0 32.5 -12 8.75
4 2 15.315 -12 -8.75 32.5 -12 -8.75 32.5 -12 8.75 20.4 -12 0
3 2 25.672 -9.172 -8.75 28.5 -12 -8.75 25.452 -9.5 -8.75
2 2 32.5 -12 8.75 32.5 -12 -8.75
5 2 25.672 -9.172 8.75 25.672 -9.172 -8.75 24.5 -10.343 8.75 26.969 -8.304 8.75
5 2 25.672 -9.172 -8.75 25.672 -9.172 8.75 26.969 -8.304 8.75 25.452 -9.5 8.75

to

2 1 15.315 9.5 8.75 25.452 9.5 8.75
2 1 25.452 9.5 -8.75 15.315 9.5 -8.75
2 1 25.452 9.5 -8.75 25.452 9.5 8.75
2 1 32.5 12 8.75 15.315 12 8.75
2 1 28.5 12 8.75 32.5 12 8.75
2 1 28.5 12 -8.75 15.315 12 -8.75
2 1 15.315 12 -8.75 32.5 12 -8.75
1 1 28.5 12 -8.75 -2.82843 0 2.82843 -2.82843 0 -2.82843 0 17.5 0 3-8cylo.dat
1 1 28.5 12 8.75 4 0 0 0 0 -4 0 -1 0 3-8disc.dat
1 1 28.5 12 -8.75 4 0 0 0 0 -4 0 1 0 3-8disc.dat
4 1 25.452 9.5 8.75 28.5 12 8.75 15.315 12 8.75 15.315 9.5 8.75
4 1 25.452 9.5 -8.75 15.315 9.5 -8.75 15.315 12 -8.75 28.5 12 -8.75
4 1 25.452 9.5 8.75 25.452 9.5 -8.75 25.672 9.172 -8.75 25.672 9.172 8.75
3 1 19.105 9.5 -6.056 15.315 9.5 -8.75 25.452 9.5 -8.75
3 1 19.105 9.5 -6.056 25.452 9.5 -8.75 21.225 9.5 -3.616
3 1 21.225 9.5 -3.616 25.452 9.5 -8.75 21.849 9.5 -1.594
4 1 25.452 9.5 8.75 21.905 9.5 0 21.849 9.5 -1.594 25.452 9.5 -8.75
3 1 21.905 9.5 0 25.452 9.5 8.75 21.849 9.5 1.594
3 1 21.849 9.5 1.594 25.452 9.5 8.75 21.225 9.5 3.616
3 1 21.225 9.5 3.616 25.452 9.5 8.75 19.105 9.5 6.056
3 1 19.105 9.5 6.056 25.452 9.5 8.75 15.315 9.5 8.75
3 1 20.4 12 0 15.315 12 8.75 32.5 12 8.75
4 1 32.5 12 8.75 32.5 12 -8.75 15.315 12 -8.75 20.4 12 0
3 1 28.5 12 -8.75 25.672 9.172 -8.75 25.452 9.5 -8.75
2 1 32.5 12 8.75 32.5 12 -8.75
5 1 25.672 9.172 8.75 25.672 9.172 -8.75 24.5 10.343 8.75 26.969 8.304 8.75
5 1 25.672 9.172 -8.75 25.672 9.172 8.75 26.969 8.304 8.75 25.452 9.5 8.75

but how do I mirror AND compensate the -24 LDU on the y axis on the same time to get a mirror of the selection right above the parent parts?

w.