[postgis-users] fabs() testing for y-coordinates in lwgeom_svg.c

[Klaus Förster]

I've just checked the source of lwgeom_svg.c in postgis-1.3.4rc3 and 
wonder what the fabs() testing in lines 243, 262, 303, 324 and 348 is 
for. Why is it needed?

e.g. line 243:
sprintf(y, "%.*f", precision, fabs(pt->y) > 0 ? (pt->y * -1) : pt->y);

thanks for any hints,

Klaus

-- 
Klaus Förster
Institut für Geographie
Universität Innsbruck
A-6020 Innsbruck, Innrain 52
Tel.: +43 (0)512 507 5434