class SceneImporter:
_logger = _module_logger.getChild('SceneImporter')
##############################################
def __init__(self, dxf_path):
self._importer = DxfImporter(dxf_path)
self._scene = QtScene()
self._bounding_box = None
for item in self._importer:
self._add_item(item)
self._scene.bounding_box = self._bounding_box # Fixme:
##############################################
@property
def scene(self):
return self._scene
##############################################
def _update_bounding_box(self, item):
if hasattr(item, 'bounding_box'):
interval = item.bounding_box
if self._bounding_box is None:
self._bounding_box = interval
else:
self._bounding_box |= interval
##############################################
def _add_item(self, item):
self._logger.info(item)
line_width = 3.
path_style = GraphicPathStyle(
line_width=line_width,
stroke_color=Colors.black,
stroke_style=StrokeStyle.SolidLine,
)
if isinstance(item, list):
for segment in item:
self._add_item(segment)
elif isinstance(item, BSpline2D):
path_style = GraphicPathStyle(
line_width=line_width,
stroke_color=Colors.blue_blue,
)
self._scene.polyline(
item.points,
path_style,
user_data=item,
)
path_style = GraphicBezierStyle(
line_width=5.0,
stroke_color=Colors.black,
show_control=True,
control_color=Colors.red,
)
self._scene.add_spline(item, path_style)
else:
self._scene.add_geometry(item, path_style)
self._update_bounding_box(item)
class SceneBuilder:
##############################################
def __init__(self):
self._scene = QtScene()
self._bounding_box = None
self._line_width = 5.
for path in self._make_figure1():
self._add_item(path)
self._scene.bounding_box = self._bounding_box # Fixme:
##############################################
@property
def scene(self):
return self._scene
##############################################
def _update_bounding_box(self, item):
interval = item.bounding_box
if self._bounding_box is None:
self._bounding_box = interval
else:
self._bounding_box |= interval
##############################################
def _make_figure1(self):
center = (0, 0)
ellipses = [Ellipse2D(center, 20, 10, angle=angle)
for angle in range(0, 360, 20)]
center = (50, 0)
ellipse_arc = Ellipse2D(center, 20, 10, angle=60, domain=AngularDomain(30, 160))
ellipses_bezier = [ellipse.to_bezier() for ellipse in ellipses]
flat_ellipses_bezier = []
for segments in ellipses_bezier:
flat_ellipses_bezier += list(segments)
return [
*flat_ellipses_bezier,
*ellipse_arc.to_bezier(),
]
##############################################
def _add_item(self, item):
path_style = GraphicPathStyle(
line_width=self._line_width,
stroke_color=Colors.black,
stroke_style=StrokeStyle.SolidLine,
cap_style=CapStyle.RoundCap,
)
self._scene.add_geometry(item, path_style)
# Fixme: why here ???
self._update_bounding_box(item)
class SceneBuilder:
##############################################
def __init__(self):
self._scene = QtScene()
self._bounding_box = None
for item in (self._make_polygon(), ):
self._add_item(item)
self._scene.bounding_box = self._bounding_box # Fixme:
##############################################
@property
def scene(self):
return self._scene
##############################################
def _update_bounding_box(self, item):
interval = item.bounding_box
if self._bounding_box is None:
self._bounding_box = interval
else:
self._bounding_box |= interval
##############################################
def _make_polygon(self):
points = Vector2D.from_coordinates(
(0, 0),
(-1, 2),
(0, 3),
(2, 4),
(1, 5),
(4, 6),
(3, 3),
(5, 3),
(7, 3),
(7, 2),
(6, 1),
(3, 2),
(2, 1),
)
polygon = Polygon2D(*points)
return polygon
##############################################
def _add_item(self, item):
path_style = GraphicPathStyle(
line_width=3.0,
stroke_color=Colors.black,
stroke_style=StrokeStyle.SolidLine,
)
self._scene.add_geometry(item, path_style)
# Fixme: why here ???
self._update_bounding_box(item)
class SceneBuilder:
##############################################
def __init__(self):
self._scene = QtScene()
self._bounding_box = None
self._line_width = 5.
for path in self._make_figure1():
self._add_item(path)
self._scene.bounding_box = self._bounding_box # Fixme:
##############################################
@property
def scene(self):
return self._scene
##############################################
def _update_bounding_box(self, item):
interval = item.bounding_box
if self._bounding_box is None:
self._bounding_box = interval
else:
self._bounding_box |= interval
##############################################
def _make_figure1(self):
items = []
for angle in range(0, 360, 30):
point1 = Vector2D(0, 0)
point2 = Vector2D.from_polar(50, angle)
segment = Segment2D(point1, point2)
items.append(segment)
head = TriangularHead(point2, segment.direction, length=5, width=5)
# head = head.to_path()
items.append(head)
return items
##############################################
def _add_item(self, item):
path_style = GraphicPathStyle(
line_width=self._line_width,
stroke_color=Colors.black,
stroke_style=StrokeStyle.SolidLine,
cap_style=CapStyle.RoundCap,
)
if isinstance(item, ArrowHead):
path_style.fill_color = Colors.black
self._scene.add_geometry(item, path_style)
# Fixme: why here ???
self._update_bounding_box(item)
class SceneBuilder:
##############################################
def __init__(self):
self._scene = QtScene()
self._bounding_box = None
self._line_width = 5.
for path in self._make_figure1():
self._add_item(path)
self._scene.bounding_box = self._bounding_box # Fixme:
##############################################
@property
def scene(self):
return self._scene
##############################################
def _update_bounding_box(self, item):
interval = item.bounding_box
if self._bounding_box is None:
self._bounding_box = interval
else:
self._bounding_box |= interval
##############################################
def _make_figure1(self):
width = 30
space = 2
seam_length = width / 4
long_arm_length = width / 2
short_arm_length = long_arm_length * .6
height = 4
radius = 2
vertical_seam_position = short_arm_length * 2 / 3
vertical_seam_length = height * 1.5
right_side_length = width / 4
y_right_side = height * 1.5
right_side_circle_radius = 1
path1 = Path2D((short_arm_length + space / 2, -height / 2))
path1.west_to(short_arm_length)
path1.north_to(height, radius=radius)
path1.east_to(long_arm_length, radius=radius)
path2 = path1.x_mirror(clone=True)
path3 = Path2D((-seam_length / 2, 0))
path3.east_to(seam_length)
path4 = Path2D((vertical_seam_position, -vertical_seam_length / 2))
path4.north_to(vertical_seam_length)
path5 = path4.x_mirror(clone=True)
path6 = Path2D((-right_side_length / 2, y_right_side))
path6.east_to(right_side_length)
circle = Circle2D((0, y_right_side), right_side_circle_radius)
return [path1, path2, path3, path4, path5, path6, circle]
##############################################
def _add_item(self, item):
if isinstance(item, Path2D):
self._add_path(item)
elif isinstance(item, Circle2D):
self._add_circle(item)
##############################################
def _add_path(self, path):
path_style = GraphicPathStyle(
line_width=self._line_width,
stroke_color=Colors.black,
stroke_style=StrokeStyle.SolidLine,
cap_style=CapStyle.RoundCap,
)
self._scene.add_path(path, path_style)
# Fixme: why here ???
self._update_bounding_box(path)
##############################################
def _add_circle(self, circle):
path_style = GraphicPathStyle(
line_width=self._line_width,
stroke_color=Colors.black,
stroke_style=StrokeStyle.SolidLine,
)
self._scene.add_geometry(circle, path_style)
self._update_bounding_box(circle)