def draw_polyline_nice_corners(cr, points, arrow_degrees, arrow_len, arrow_start = False, arrow_end = False):
ex, ey = points[-1]
prev = points[0]
if arrow_start:
cr.move_to(prev[0],prev[1])
draw_arrow(cr, utils.make_vector(points[1], points[0]), arrow_degrees, arrow_len)
cr.move_to(prev[0],prev[1])
for i in xrange(1, len(points) - 1):
a = utils.make_vector(points[i-1], points[i])
b = utils.make_vector(points[i], points[i + 1])
la = utils.vector_len(a)
lb = utils.vector_len(b)
if la < 0.01 or lb < 0.01:
continue
v = utils.vector_mul_scalar(utils.normalize_vector(a), min(la, 20.0))
w = utils.vector_mul_scalar(utils.normalize_vector(b), min(lb, 20.0))
t = utils.vector_diff(points[i], v)
cr.line_to(t[0], t[1])
cr.rel_curve_to(v[0], v[1], v[0], v[1], v[0] + w[0], v[1] + w[1])
cr.line_to(ex,ey)
cr.stroke()
if arrow_end:
cr.move_to(ex, ey)
draw_arrow(cr, utils.make_vector(points[-2], points[-1]), arrow_degrees, arrow_len)
def draw_polyline_nice_corners(cr,
points,
arrow_degrees,
arrow_len,
arrow_start=False,
arrow_end=False):
ex, ey = points[-1]
prev = points[0]
if arrow_start:
cr.move_to(prev[0], prev[1])
draw_arrow(cr, utils.make_vector(points[1], points[0]), arrow_degrees,
arrow_len)
cr.move_to(prev[0], prev[1])
for i in xrange(1, len(points) - 1):
a = utils.make_vector(points[i - 1], points[i])
b = utils.make_vector(points[i], points[i + 1])
la = utils.vector_len(a)
lb = utils.vector_len(b)
if la < 0.01 or lb < 0.01:
continue
v = utils.vector_mul_scalar(utils.normalize_vector(a), min(la, 20.0))
w = utils.vector_mul_scalar(utils.normalize_vector(b), min(lb, 20.0))
t = utils.vector_diff(points[i], v)
cr.line_to(t[0], t[1])
cr.rel_curve_to(v[0], v[1], v[0], v[1], v[0] + w[0], v[1] + w[1])
cr.line_to(ex, ey)
cr.stroke()
if arrow_end:
cr.move_to(ex, ey)
draw_arrow(cr, utils.make_vector(points[-2], points[-1]),
arrow_degrees, arrow_len)
def draw(self, cr):
NetEditCanvasConfig.draw(self, cr)
if self.start_position:
cr.set_source_rgba(1,1,1,0.5)
px, py = self.start_position
sx, sy = utils.vector_diff(self.mouse_position, self.start_position)
cr.rectangle(px, py, sx, sy)
cr.fill()
cr.set_line_width(0.5)
cr.set_source_rgb(0,0,0)
cr.rectangle(px, py, sx, sy)
cr.stroke()
def draw(self, cr):
NetEditCanvasConfig.draw(self, cr)
if self.start_position:
cr.set_source_rgba(1,1,1,0.5)
px, py = self.start_position
sx, sy = utils.vector_diff(self.mouse_position, self.start_position)
cr.rectangle(px, py, sx, sy)
cr.fill()
cr.set_line_width(0.5)
cr.set_source_rgb(0,0,0)
cr.rectangle(px, py, sx, sy)
cr.stroke()
def is_at_position(self, position):
p1 = self.point1.get_position()
p2 = self.point2.get_position()
return utils.position_on_rect(position, p1, utils.vector_diff(p2, p1),
5)
def set_position(self, position):
self.position = utils.vector_diff(position,
self.parent_placement.get_position())
def is_at_position(self, position):
p1 = self.point1.get_position()
p2 = self.point2.get_position()
return utils.position_on_rect(position, p1, utils.vector_diff(p2, p1), 5)
def set_position(self, position):
self.position = utils.vector_diff(position,
self.parent_placement.get_position())
