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[varLib.interpolate_layout] Allow disabling avar mapping

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See https://github.com/fonttools/fonttools/issues/950#issuecomment-303641054
This commit is contained in:
Behdad Esfahbod 2017-05-24 00:26:35 -07:00
parent dbc54a2429
commit c96f83cc30
1 changed files with 8 additions and 2 deletions
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10
Lib/fontTools/varLib/interpolate_layout.py
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@ -13,13 +13,18 @@ from pprint import pformat
log = logging.getLogger("fontTools.varLib.interpolate_layout")
def interpolate_layout(designspace_filename, loc, master_finder=lambda s:s):
def interpolate_layout(designspace_filename, loc, master_finder=lambda s:s, mapped=False):
"""
Interpolate GPOS from a designspace file and location.
If master_finder is set, it should be a callable that takes master
filename as found in designspace file and map it to master font
binary as to be opened (eg. .ttf or .otf).
If mapped is False (default), then location is mapped using the
map element of the axes in designspace file. If mapped is True,
it is assumed that location is in designspace's internal space and
no mapping is performed.
"""
axes, internal_axis_supports, base_idx, normalized_master_locs, masters, instances = load_designspace(designspace_filename)
@ -35,7 +40,8 @@ def interpolate_layout(designspace_filename, loc, master_finder=lambda s:s):
font = TTFont(master_ttfs[base_idx])
log.info("Location: %s", pformat(loc))
loc = {name:axes[name].map_forward(v) for name,v in loc.items()}
if not mapped:
loc = {name:axes[name].map_forward(v) for name,v in loc.items()}
log.info("Internal location: %s", pformat(loc))
loc = models.normalizeLocation(loc, internal_axis_supports)
log.info("Normalized location: %s", pformat(loc))