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OBJ export nurbs curves now export again.

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This commit is contained in:
Campbell Barton 2010-08-27 04:43:42 +00:00
parent 3cdcff9859
commit fb66c93b90
1 changed files with 33 additions and 38 deletions
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71
release/scripts/io/export_obj.py
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@ -184,50 +184,48 @@ def copy_images(dest_dir):
# paths= bpy.util.copy_images(uniqueImages.values(), dest_dir)
print('\tCopied %d images' % copyCount)
# print('\tCopied %d images' % copyCount)
# XXX not converted
def test_nurbs_compat(ob):
if ob.type != 'Curve':
if ob.type != 'CURVE':
return False
for nu in ob.data:
if (not nu.knotsV) and nu.type != 1: # not a surface and not bezier
for nu in ob.data.splines:
if nu.point_count_v == 1 and nu.type != 'BEZIER': # not a surface and not bezier
return True
return False
# XXX not converted
def write_nurb(file, ob, ob_mat):
tot_verts = 0
cu = ob.data
# use negative indices
Vector = Blender.mathutils.Vector
for nu in cu:
for nu in cu.splines:
if nu.type == 'POLY':
DEG_ORDER_U = 1
else:
DEG_ORDER_U = nu.order_u - 1 # odd but tested to be correct
if nu.type==0: DEG_ORDER_U = 1
else: DEG_ORDER_U = nu.orderU-1 # Tested to be correct
if nu.type==1:
if nu.type == 'BEZIER':
print("\tWarning, bezier curve:", ob.name, "only poly and nurbs curves supported")
continue
if nu.knotsV:
if nu.point_count_v > 1:
print("\tWarning, surface:", ob.name, "only poly and nurbs curves supported")
continue
if len(nu) <= DEG_ORDER_U:
print("\tWarning, orderU is lower then vert count, skipping:", ob.name)
if len(nu.points) <= DEG_ORDER_U:
print("\tWarning, order_u is lower then vert count, skipping:", ob.name)
continue
pt_num = 0
do_closed = (nu.flagU & 1)
do_endpoints = (do_closed==0) and (nu.flagU & 2)
do_closed = nu.use_cyclic_u
do_endpoints = (do_closed == 0) and nu.use_endpoint_u
for pt in nu:
pt = Vector(pt[0], pt[1], pt[2]) * ob_mat
for pt in nu.points:
pt = ob_mat * pt.co.copy().resize3D()
file.write('v %.6f %.6f %.6f\n' % (pt[0], pt[1], pt[2]))
pt_num += 1
tot_verts += pt_num
@ -247,7 +245,7 @@ def write_nurb(file, ob, ob_mat):
pt_num += DEG_ORDER_U
curve_ls = curve_ls + curve_ls[0:DEG_ORDER_U]
file.write('curv 0.0 1.0 %s\n' % (' '.join( [str(i) for i in curve_ls] ))) # Blender has no U and V values for the curve
file.write('curv 0.0 1.0 %s\n' % (' '.join([str(i) for i in curve_ls]))) # Blender has no U and V values for the curve
# 'parm' keyword
tot_parm = (DEG_ORDER_U + 1) + pt_num
@ -390,16 +388,13 @@ def write_file(filepath, objects, scene,
for ob, ob_mat in obs:
# XXX postponed
# # Nurbs curve support
# if EXPORT_CURVE_AS_NURBS and test_nurbs_compat(ob):
# if EXPORT_ROTX90:
# ob_mat = ob_mat * mat_xrot90
# totverts += write_nurb(file, ob, ob_mat)
# continue
# end nurbs
# Nurbs curve support
if EXPORT_CURVE_AS_NURBS and test_nurbs_compat(ob):
if EXPORT_ROTX90:
ob_mat = ob_mat * mat_xrot90
totverts += write_nurb(file, ob, ob_mat)
continue
# END NURBS
if ob.type != 'MESH':
continue
@ -881,15 +876,15 @@ class ExportOBJ(bpy.types.Operator):
use_rotate90 = BoolProperty(name="Rotate X90", description="", default= True)
# extra data group
use_edges = BoolProperty(name="Edges", description="", default= True)
use_normals = BoolProperty(name="Normals", description="", default= False)
use_hq_normals = BoolProperty(name="High Quality Normals", description="", default= True)
use_edges = BoolProperty(name="Edges", description="", default=True)
use_normals = BoolProperty(name="Normals", description="", default=False)
use_hq_normals = BoolProperty(name="High Quality Normals", description="", default=True)
use_uvs = BoolProperty(name="UVs", description="", default= True)
use_materials = BoolProperty(name="Materials", description="", default= True)
copy_images = BoolProperty(name="Copy Images", description="", default= False)
use_triangles = BoolProperty(name="Triangulate", description="", default= False)
use_vertex_groups = BoolProperty(name="Polygroups", description="", default= False)
use_nurbs = BoolProperty(name="Nurbs", description="", default= False)
use_materials = BoolProperty(name="Materials", description="", default=True)
copy_images = BoolProperty(name="Copy Images", description="", default=False)
use_triangles = BoolProperty(name="Triangulate", description="", default=False)
use_vertex_groups = BoolProperty(name="Polygroups", description="", default=False)
use_nurbs = BoolProperty(name="Nurbs", description="", default=False)
# grouping group
use_blen_objects = BoolProperty(name="Objects as OBJ Objects", description="", default= True)