def test_circle_with_stroke(self):
r = 5
cx = 10
cy = 20
stroke_half_width = 1.0
circle = Circle(r=str(r), cx=str(cx), cy=str(cy))
circle.style = Style("stroke-width:{};stroke:red".format(stroke_half_width * 2))
self.assert_bounding_box_is_equal(circle,
(cx - (r + stroke_half_width), cx + (r + stroke_half_width)),
(cy - (r + stroke_half_width), cy + (r + stroke_half_width)))
def test_regular_circle(self):
r = 5
cx = 10
cy = 20
circle = Circle(r=str(r), cx=str(cx), cy=str(cy))
self.assert_bounding_box_is_equal(circle, (cx - r, cx + r), (cy - r, cy + r))
def draw_reg_circles(self, cx, cy, r, name, colours, parent):
for i in range(len(colours)):
style = {'stroke': colours[i], 'stroke-width': str(r / len(colours)),
'fill': 'none'}
circle_attribs = {'style': str(inkex.Style(style)),
'inkscape:label': name,
'cx': str(cx), 'cy': str(cy),
'r': str((r / len(colours)) * (i + 0.5))}
parent.add(Circle(**circle_attribs))
def drawCircle(self, group, color, point):
style = inkex.Style({'stroke': 'none', 'fill': color})
startCircle = group.add(
Circle(cx=str(point[0]),
cy=str(point[1]),
r=str(
self.svg.unittouu(str(self.options.dotsize / 2) +
"px"))))
startCircle.style = style
def test_parse(self):
"""Test Circle parsed from XML"""
circle = Circle(attrib={"cx": "10px", "cy": "20px", "r": "30px"})
self.assertEqual(circle.center.x, 10)
self.assertEqual(circle.center.y, 20)
self.assertEqual(circle.radius, 30)
ellipse = Ellipse(attrib={"cx": "10px", "cy": "20px", "rx": "30px", "ry": "40px"})
self.assertEqual(ellipse.center.x, 10)
self.assertEqual(ellipse.center.y, 20)
self.assertEqual(ellipse.radius.x, 30)
self.assertEqual(ellipse.radius.y, 40)
def test_circle_with_stroke_scaled(self):
r = 5
cx = 10
cy = 20
scale_x = 2
scale_y = 3
stroke_half_width = 1.0
circle = Circle(r=str(r), cx=str(cx), cy=str(cy))
circle.style = Style("stroke-width:{};stroke:red".format(stroke_half_width * 2))
circle.transform = Transform(scale=(scale_x, scale_y))
self.assert_bounding_box_is_equal(circle,
(scale_x * (cx - (r + stroke_half_width)),
scale_x * (cx + (r + stroke_half_width))),
(scale_y * (cy - (r + stroke_half_width)),
scale_y * (cy + (r + stroke_half_width))))
def generateCircle(self, x, y, r, strokeWidth, stroke, fill, name):
circle = Circle()
circle.center = (x, y)
circle.radius = r
circle.style = {
'stroke': stroke,
'stroke-width': strokeWidth,
'fill': fill
}
circle.label = name
return circle
def add_dot(self, node):
"""Add a dot label for this path element"""
group = node.getparent().add(inkex.Group())
dot_group = group.add(inkex.Group())
num_group = group.add(inkex.Group())
group.transform = node.transform
style = inkex.Style({'stroke': 'none', 'fill': '#000'})
for step, (x, y) in enumerate(node.path.end_points):
circle = dot_group.add(Circle(cx=str(x), cy=str(y),\
r=str(self.svg.unittouu(self.options.dotsize) / 2)))
circle.style = style
num_group.append(
self.add_text(
x + (self.svg.unittouu(self.options.dotsize) / 2),
y - (self.svg.unittouu(self.options.dotsize) / 2),
self.options.start + (self.options.step * step)))
node.delete()
def draw_SVG_circle(
rad, centre, params, style, name, parent
): # draw an SVG circle with a given radius as trilinear coordinates
if rad == 0: # we want a dot
r = style.d_rad # get the dot width from the style
circ_style = {
'stroke': style.d_col,
'stroke-width': str(style.d_th),
'fill': style.d_fill
}
else:
r = rad # use given value
circ_style = {
'stroke': style.c_col,
'stroke-width': str(style.c_th),
'fill': style.c_fill
}
cx, cy = get_cartesian_pt(centre, params)
circ_attribs = {'cx': str(cx), 'cy': str(cy), 'r': str(r)}
elem = parent.add(Circle(**circ_attribs))
elem.style = circ_style
elem.label = name
def draw_circle(r, cx, cy, width, fill, name, parent):
"""Draw an SVG circle"""
circle = parent.add(Circle(cx=str(cx), cy=str(cy), r=str(r)))
circle.style = {'stroke': '#000000', 'stroke-width': str(width), 'fill': fill}
circle.label = name
def scanContours(self, node):
if node.tag == inkex.addNS('path', 'svg'):
if self.options.removefillsetstroke:
self.adjustStyle(node)
intersectionGroup = node.getparent().add(inkex.Group())
raw = (Path(node.get('d')).to_arrays())
subPaths, prev = [], 0
for i in range(
len(raw)): # Breaks compound paths into simple paths
if raw[i][0] == 'M' and i != 0:
subPaths.append(raw[prev:i])
prev = i
subPaths.append(raw[prev:])
for simpath in subPaths:
closed = False
if simpath[-1][0] == 'Z':
closed = True
if simpath[-2][0] == 'L': simpath[-1][1] = simpath[0][1]
else: simpath.pop()
points = []
for i in range(len(simpath)):
if simpath[i][
0] == 'V': # vertical and horizontal lines only have one point in args, but 2 are required
simpath[i][
0] = 'L' #overwrite V with regular L command
add = simpath[i - 1][1][
0] #read the X value from previous segment
simpath[i][1].append(
simpath[i][1][0]
) #add the second (missing) argument by taking argument from previous segment
simpath[i][1][
0] = add #replace with recent X after Y was appended
if simpath[i][
0] == 'H': # vertical and horizontal lines only have one point in args, but 2 are required
simpath[i][
0] = 'L' #overwrite H with regular L command
simpath[i][1].append(
simpath[i - 1][1][1]
) #add the second (missing) argument by taking argument from previous segment
points.append(simpath[i][1][-2:])
if points[0] == points[
-1]: #if first is last point the path is also closed. The "Z" command is not required
closed = True
if closed == False:
if self.options.highlight_opened:
style = {
'stroke-linejoin':
'miter',
'stroke-width':
str(
self.svg.unittouu(
str(self.options.strokewidth) + "px")),
'stroke-opacity':
'1.0',
'fill-opacity':
'1.0',
'stroke':
self.options.color_opened,
'stroke-linecap':
'butt',
'fill':
'none'
}
node.attrib['style'] = Style(style).to_str()
if self.options.remove_opened:
try:
node.delete()
except AttributeError:
pass #we ignore that parent can be None
if closed == True:
if self.options.highlight_closed:
style = {
'stroke-linejoin':
'miter',
'stroke-width':
str(
self.svg.unittouu(
str(self.options.strokewidth) + "px")),
'stroke-opacity':
'1.0',
'fill-opacity':
'1.0',
'stroke':
self.options.color_closed,
'stroke-linecap':
'butt',
'fill':
'none'
}
node.attrib['style'] = Style(style).to_str()
if self.options.remove_closed:
try:
node.delete()
except AttributeError:
pass #we ignore that parent can be None
#if one of the options is activated we also check for self-intersecting
if self.options.highlight_selfintersecting or self.options.highlight_intersectionpoints:
#Style definitions
closingLineStyle = Style({
'stroke-linejoin':
'miter',
'stroke-width':
str(
self.svg.unittouu(
str(self.options.strokewidth) + "px")),
'stroke-opacity':
'1.0',
'fill-opacity':
'1.0',
'stroke':
self.options.color_intersectionpoints,
'stroke-linecap':
'butt',
'fill':
'none'
}).to_str()
intersectionPointStyle = Style({
'stroke':
'none',
'fill':
self.options.color_intersectionpoints
}).to_str()
intersectionStyle = Style({
'stroke-linejoin':
'miter',
'stroke-width':
str(
self.svg.unittouu(
str(self.options.strokewidth) + "px")),
'stroke-opacity':
'1.0',
'fill-opacity':
'1.0',
'stroke':
self.options.color_selfintersecting,
'stroke-linecap':
'butt',
'fill':
'none'
}).to_str()
try:
if len(
points
) > 2: #try to find self-intersecting /overlapping polygons. We need at least 3 points to detect for intersections (only possible if first points matched last point)
isect = poly_point_isect.isect_polygon(points)
if len(isect) > 0:
if closed == False and self.options.addlines == True: #if contour is open and we found intersection points those points might be not relevant
closingLine = intersectionGroup.add(
inkex.PathElement())
closingLine.set(
'id',
self.svg.get_unique_id('closingline-'))
closingLine.path = [[
'M', [points[0][0], points[0][1]]
], ['L', [points[-1][0], points[-1][1]]],
['Z', []]]
closingLine.attrib[
'style'] = closingLineStyle
#draw polylines if option is enabled
if self.options.polypaths == True:
polyNode = intersectionGroup.add(
inkex.PathElement())
polyNode.set(
'id',
self.svg.get_unique_id('polypath-'))
polyNode.set('d',
str(self.getPolyline(node)))
polyNode.attrib['style'] = closingLineStyle
#make dot markings at the intersection points
if self.options.highlight_intersectionpoints:
for xy in isect:
#Add a dot label for this path element
intersectionPoint = intersectionGroup.add(
Circle(cx=str(xy[0]),
cy=str(xy[1]),
r=str(
self.svg.unittouu(
str(self.options.
dotsize / 2) +
"px"))))
intersectionPoint.set(
'id',
self.svg.get_unique_id(
'intersectionpoint-'))
intersectionPoint.style = intersectionPointStyle
if self.options.highlight_selfintersecting:
node.attrib['style'] = intersectionStyle
if self.options.remove_selfintersecting:
if node.getparent(
) is not None: #might be already been deleted by previously checked settings so check again
node.delete()
#draw intersections segment lines - useless at the moment. We could use this information to cut the original polyline to get a new curve path which included the intersection points
#isectSegs = poly_point_isect.isect_polygon_include_segments(points)
#for seg in isectSegs:
# isectSegsPath = []
# isecX = seg[0][0] #the intersection point - X
# isecY = seg[0][1] #the intersection point - Y
# isecSeg1X = seg[1][0][0][0] #the first intersection point segment - X
# isecSeg1Y = seg[1][0][0][1] #the first intersection point segment - Y
# isecSeg2X = seg[1][1][0][0] #the second intersection point segment - X
# isecSeg2Y = seg[1][1][0][1] #the second intersection point segment - Y
# isectSegsPath.append(['L', [isecSeg2X, isecSeg2Y]])
# isectSegsPath.append(['L', [isecX, isecY]])
# isectSegsPath.append(['L', [isecSeg1X, isecSeg1Y]])
# #fix the really first point. Has to be an 'M' command instead of 'L'
# isectSegsPath[0][0] = 'M'
# polySegsNode = intersectionGroup.add(inkex.PathElement())
# polySegsNode.set('id', self.svg.get_unique_id('intersectsegments-'))
# polySegsNode.set('d', str(Path(isectSegsPath)))
# polySegsNode.attrib['style'] = closingLineStyle
except AssertionError as e: # we skip AssertionError
if self.options.show_debug is True:
inkex.utils.debug("AssertionError at " +
node.get('id'))
continue
except IndexError as i: # we skip IndexError
if self.options.show_debug is True:
inkex.utils.debug("IndexError at " +
node.get('id'))
continue
#if the intersectionGroup was created but nothing attached we delete it again to prevent messing the SVG XML tree
if len(intersectionGroup.getchildren()) == 0:
intersectionGroupParent = intersectionGroup.getparent()
if intersectionGroupParent is not None:
intersectionGroup.delete()
#put the node into the intersectionGroup to bundle the path with it's error markers. If removal is selected we need to avoid intersectionGroup.insert(), because it will break the removal
elif self.options.remove_selfintersecting == False:
intersectionGroup.insert(0, node)
children = node.getchildren()
if children is not None:
for child in children:
self.scanContours(child)
def render_pie(self, keys, values, pie_abs=False):
"""Draw pie chart"""
pie_radius = self.options.pie_radius
# Iterate all values to draw the different slices
color = 0
x = float(self.width) / 2
y = float(self.height) / 2
# Create the shadow first (if it should be created):
if self.blur:
shadow = Circle(cx=str(x), cy=str(y))
shadow.set('r', str(pie_radius))
shadow.style = self.blur + inkex.Style(fill='#000000')
yield shadow
# Add a grey background circle with a light stroke
background = Circle(cx=str(x), cy=str(y))
background.set("r", str(pie_radius))
background.set("style", "stroke:#ececec;fill:#f9f9f9")
yield background
# create value sum in order to divide the slices
try:
valuesum = sum(values)
except ValueError:
valuesum = 0
if pie_abs:
valuesum = 100
# Set an offsetangle
offset = 0
# Draw single slices
for cnt, value in enumerate(values):
# Calculate the PI-angles for start and end
angle = (2 * 3.141592) / valuesum * float(value)
start = offset
end = offset + angle
# proper overlapping
if self.options.segment_overlap:
if cnt != len(values) - 1:
end += 0.09 # add a 5° overlap
if cnt == 0:
start -= 0.09 # let the first element overlap into the other direction
# then add the slice
pieslice = inkex.PathElement()
pieslice.set('sodipodi:type', 'arc')
pieslice.set('sodipodi:cx', x)
pieslice.set('sodipodi:cy', y)
pieslice.set('sodipodi:rx', pie_radius)
pieslice.set('sodipodi:ry', pie_radius)
pieslice.set('sodipodi:start', start)
pieslice.set('sodipodi:end', end)
pieslice.set(
"style",
"fill:" + self.get_color() + ";stroke:none;fill-opacity:1")
ang = angle / 2 + offset
# If text is given, draw short paths and add the text
if keys:
elem = inkex.PathElement()
elem.path = [
Move(
(self.width / 2) + pie_radius * math.cos(ang),
(self.height / 2) + pie_radius * math.sin(ang),
),
line(
(self.options.text_offset - 2) * math.cos(ang),
(self.options.text_offset - 2) * math.sin(ang),
),
]
elem.style = {
'fill': 'none',
'stroke': self.options.font_color,
'stroke-width': self.options.stroke_width,
'stroke-linecap': 'butt',
}
yield elem
label = keys[cnt]
if self.options.show_values:
label += ' ({}{})'.format(str(value), ('', '%')[pie_abs])
# check if it is right or left of the Pie
anchor = 'start' if math.cos(ang) > 0 else 'end'
text = self.draw_text(label, anchor=anchor)
off = pie_radius + self.options.text_offset
text.set("x", (self.width / 2) + off * math.cos(ang))
text.set("y", (self.height / 2) + off * math.sin(ang) +
self.fontoff)
yield text
# increase the rotation-offset and the colorcycle-position
offset = offset + angle
color = (color + 1) % 8
# append the objects to the extension-layer
yield pieslice
yield self.draw_header(self.width / 2 - pie_radius)
def test_circle_without_center(self):
r = 10
circle = Circle(r=str(r))
self.assert_bounding_box_is_equal(circle, (-r, r), (-r, r))
def test_circle_with_cy(self):
cy = 10
circle = Circle(cy=str(cy))
self.assert_bounding_box_is_equal(circle, (0, 0), (cy, cy))
def test_circle_with_cx(self):
cx = 10
circle = Circle(cx=str(cx))
self.assert_bounding_box_is_equal(circle, (cx, cx), (0, 0))
def test_circle_without_attributes(self):
circle = Circle()
self.assert_bounding_box_is_equal(circle, (0, 0), (0, 0))
def test_new(self):
"""Test new circles"""
elem = Circle.new((10, 10), 50)
self.assertElement(elem, b'<circle cx="10.0" cy="10.0" r="50.0"/>')
elem = Ellipse.new((10, 10), (15, 10))
self.assertElement(elem, b'<ellipse cx="10.0" cy="10.0" rx="15.0" ry="10.0"/>')