gts imports surfaces incorrectly (regression from 0.50)

[Václav Šmilauer]

examples/gts-horse/gts-horse.py does not import the givem gts file correctly (all points of the surface as colinear, lying on the x-axis?), while running the same script with 0.50 works. The data are incorrect as soon as they are imported via

 surf=gts.read(open('horse.coarse.gts'))

which can be checked with

 print 'volume:',surf.volume()

(gives 0.00026341826018 with 0.50 and 0 with recent trunk)

Curiously, 0.50 links to the same libgts library (the reason is not an upstream change) and pygts sources in yade tree are always at version 0.3.1. We should investigate when this regression happened and fix it.

Parametrically-constructed surfaces work normally.

[Václav Šmilauer (eudoxos)]

Fixed in r2691