def parse(dxf_file, segarc, new_origin=True):
font = Font()
DXF_source = " "
dxf_import = DXF_CLASS()
dxf_import.GET_DXF_DATA(dxf_file, tol_deg=segarc)
dxfcoords = dxf_import.DXF_COORDS_GET(new_origin)
if "POTRACE" in dxf_import.comment.upper():
DXF_source = "POTRACE"
if "INKSCAPE" in dxf_import.comment.upper():
DXF_source = "INKSCAPE"
# save the character to our dictionary
key = ord("F")
stroke_list = []
bbox = BoundingBox()
for line in dxfcoords:
line = Line(line[0:4])
stroke_list.append(line)
bbox.extend(line)
font.add_character(Character(key, stroke_list))
return font, DXF_source
def get_char_bbox_used(self, string):
bbox = BoundingBox()
for char in string:
bbox.extend(self[ord(char)])
return bbox
def get_char_bbox_used(self, string):
bbox = BoundingBox()
for char in string:
bbox.extend(self[ord(char)])
return bbox
def parse(dxf_file, segarc, new_origin=True):
font = Font()
DXF_source = " "
dxf_import = DXF_CLASS()
dxf_import.GET_DXF_DATA(dxf_file, tol_deg=segarc)
dxfcoords = dxf_import.DXF_COORDS_GET(new_origin)
if "POTRACE" in dxf_import.comment.upper():
DXF_source = "POTRACE"
if "INKSCAPE" in dxf_import.comment.upper():
DXF_source = "INKSCAPE"
# save the character to our dictionary
key = ord("F")
stroke_list = []
bbox = BoundingBox()
for line in dxfcoords:
line = Line(line[0:4])
stroke_list.append(line)
bbox.extend(line)
font.add_character(Character(key, stroke_list))
return font, DXF_source
def test_center(self):
bbox = BoundingBox(0, 10, 0, 10)
self.assertEquals(bbox.center(), (5.0, 5.0))
bbox.pad(500)
self.assertEquals(bbox.center(), (5.0, 5.0))
def test_pad(self):
bbox = BoundingBox(0, 100, 0, 100).pad(10)
self.assertEquals(bbox, BoundingBox(-10, 110, -10, 110))
bbox = BoundingBox(10, 12, 10, 12)
bbox.pad(-0.8)
self.assertEquals(bbox, BoundingBox(10.8, 11.2, 10.8, 11.2))
def test_pad(self):
bbox = BoundingBox(0, 100, 0, 100).pad(10)
self.assertEquals(bbox, BoundingBox(-10, 110, -10, 110))
bbox = BoundingBox(10, 12, 10, 12)
bbox.pad(-0.8)
self.assertEquals(bbox, BoundingBox(10.8, 11.2, 10.8, 11.2))
def test_initizialize(self):
bbox = BoundingBox()
self.assertEquals(bbox.xmin, INFINITY)
self.assertEquals(bbox.xmax, -INFINITY)
self.assertEquals(bbox.ymin, INFINITY)
self.assertEquals(bbox.ymax, -INFINITY)
xmin, xmax, ymin, ymax = (0, 12, 123, 400)
bbox = BoundingBox(xmin, xmax, ymin, ymax)
self.assertEquals(bbox.xmin, xmin)
self.assertEquals(bbox.xmax, xmax)
self.assertEquals(bbox.ymin, ymin)
self.assertEquals(bbox.ymax, ymax)
class Font(object):
"""
The complete characterset of a font
"""
def __init__(self):
self.characters = {}
self.bbox = BoundingBox()
def __len__(self):
return len(self.characters)
def __getitem__(self, key):
# Space or Linefeed
if key in (32, 10):
return Character(' ', [])
try:
return self.characters[key]
except: # return a question mark for chars missing in this characterset
return self.characters[63]
def __iter__(self):
for char in self.characters:
yield char
def add_character(self, char):
self.characters[char.key] = char
self.bbox.extend(char.bounds())
def get_char_bbox_used(self, string):
bbox = BoundingBox()
for char in string:
bbox.extend(self[ord(char)])
return bbox
def get_character_width(self):
return max(self.characters[key].get_xmax() for key in self.characters)
def line_height(self):
return self.bbox.ymax
def line_depth(self):
return self.bbox.ymin
def test_extend_with_lines(self):
bbox = BoundingBox()
with open('tests/files/lines.csv', 'r') as csvfile:
lines = [map(float, line) for line in csv.reader(csvfile, delimiter=',')]
minx, maxx, miny, maxy = (INFINITY, -INFINITY, INFINITY, -INFINITY)
for line in lines:
bbox.extend(Line(map(float, line)))
minx = min(minx, line[0], line[2])
maxx = max(maxx, line[0], line[2])
miny = min(miny, line[1], line[3])
maxy = max(maxy, line[1], line[3])
self.assertEquals(str(bbox), str(BoundingBox(minx, maxx, miny, maxy)))
class Font(object):
"""
The complete characterset of a font
"""
def __init__(self):
self.characters = {}
self.bbox = BoundingBox()
def __len__(self):
return len(self.characters)
def __getitem__(self, key):
# Space or Linefeed
if key in (32, 10):
return Character(' ', [])
try:
return self.characters[key]
except: # return a question mark for chars missing in this characterset
return self.characters[63]
def __iter__(self):
for char in self.characters:
yield char
def add_character(self, char):
self.characters[char.key] = char
self.bbox.extend(char.bounds())
def get_char_bbox_used(self, string):
bbox = BoundingBox()
for char in string:
bbox.extend(self[ord(char)])
return bbox
def get_character_width(self):
return max(self.characters[key].get_xmax() for key in self.characters)
def line_height(self):
return self.bbox.ymax
def line_depth(self):
return self.bbox.ymin
def test_extend_with_lines(self):
bbox = BoundingBox()
with open('tests/files/lines.csv', 'r') as csvfile:
csv_file = csv.reader(csvfile, delimiter=',')
lines = [list(map(float, line)) for line in csv_file]
minx, maxx, miny, maxy = (INFINITY, -INFINITY, INFINITY, -INFINITY)
for line in lines:
bbox.extend(Line(map(float, line)))
minx = min(minx, line[0], line[2])
maxx = max(maxx, line[0], line[2])
miny = min(miny, line[1], line[3])
maxy = max(maxy, line[1], line[3])
self.assertEquals(str(bbox), str(BoundingBox(minx, maxx, miny, maxy)))
def test_center(self):
bbox = BoundingBox(0, 10, 0, 10)
self.assertEquals(bbox.center(), (5.0, 5.0))
bbox.pad(500)
self.assertEquals(bbox.center(), (5.0, 5.0))
class Shape(object):
def __init__(self, vertices, index_lists):
self.vertices = vertices
self.index_lists = index_lists
self.bounding_box = BoundingBox()
for v in self.vertices:
self.bounding_box.bound_point(v)
def get_lines(self):
return [LineStripe(self.vertices, index_list) for index_list in self.index_lists]
@staticmethod
def load(filename):
with open(filename, 'r') as fobj:
vertices = []
lines = []
for line in fobj:
data = line.split()
if data[0] == 'v':
vertices.append(Vec3(float(data[1]), float(data[2]), float(data[3])))
elif data[0] == 'f':
lines.append([int(d)-1 for d in data[1:]])
print('loaded ' + str(len(vertices)) + ' vertices, ' + str(len(lines)) + ' lines')
return Shape(vertices, lines)
def test_width(self):
bbox = BoundingBox(0, 10, 0, 10)
self.assertEquals(bbox.width(), 10)
bbox = BoundingBox(-10, 10, -10, 10)
self.assertEquals(bbox.width(), 20)
def test_extend_with_2tuple(self):
bbox = BoundingBox(0, 1, 2, 4).extend(100, 500)
self.assertEquals(bbox, BoundingBox(0, 100, 2, 500))
def test_extend_with_4tuple(self):
bbox = BoundingBox(0, 1, 2, 4).extend(0, 1, 3, 8)
self.assertEquals(bbox, BoundingBox(0, 1, 2, 8))
def test_extend_with_line(self):
bbox = BoundingBox(0, 0, 0, 0)
bbox.extend(Line((0, 0, 100, 100)))
self.assertEquals(bbox, BoundingBox(0, 100, 0, 100))
def test_extend_with_bbox(self):
bbox = BoundingBox()
bbox.extend(BoundingBox(0, 1.0, 2, 4))
bbox.extend(BoundingBox(1, 4, 8, 100))
self.assertEquals(bbox, BoundingBox(0.0, 4, 2, 100))
def __init__(self):
self.characters = {}
self.bbox = BoundingBox()
def test_extend_with_line(self):
bbox = BoundingBox(0, 0, 0, 0)
bbox.extend(Line((0, 0, 100, 100)))
self.assertEquals(bbox, BoundingBox(0, 100, 0, 100))
def test_extend_with_bbox(self):
bbox = BoundingBox()
bbox.extend(BoundingBox(0, 1.0, 2, 4))
bbox.extend(BoundingBox(1, 4, 8, 100))
self.assertEquals(bbox, BoundingBox(0.0, 4, 2, 100))
def test_height(self):
bbox = BoundingBox(0, 10, 0, 10)
self.assertEquals(bbox.height(), 10)
def test_str(self):
bbox = BoundingBox(0, 1, 2, 3)
self.assertEquals(str(bbox), 'BoundingBox([0.0, 1.0, 2.0, 3.0])')
def test_width(self):
bbox = BoundingBox(0, 10, 0, 10)
self.assertEquals(bbox.width(), 10)
bbox = BoundingBox(-10, 10, -10, 10)
self.assertEquals(bbox.width(), 20)
def __init__(self, vertices, index_lists):
self.vertices = vertices
self.index_lists = index_lists
self.bounding_box = BoundingBox()
for v in self.vertices:
self.bounding_box.bound_point(v)
def __init__(self):
self.characters = {}
self.bbox = BoundingBox()
def test_height(self):
bbox = BoundingBox(0, 10, 0, 10)
self.assertEquals(bbox.height(), 10)
def bounds(self):
return BoundingBox(self.get_xmin(), self.get_xmax(), self.get_ymin(),
self.get_ymax())
def bounds(self):
return BoundingBox(self.xmin, self.xmax, self.ymin, self.ymax)
