def __init__(self, seconds: float, freq: float, points: List[List[float]],
**kwargs):
Source.__init__(self)
self.seconds = seconds
self.freq = float(freq)
self.points = np.array(points)
self.curve = Curve.from_nodes(points)
def _interp_bezier(curve: bezier.Curve, detail: float) -> np.ndarray:
"""Strategy: interpolate at 1/5th target resolution and generate s param based
on resulting segment length.
"""
s = np.linspace(0, 1, max(3, math.ceil(curve.length / detail / 5)))
x, y = curve.evaluate_multi(s)
curv_absc = np.cumsum(np.hstack([0, np.hypot(np.diff(x), np.diff(y))]))
new_s = np.interp(
np.linspace(0, curv_absc[-1],
max(3, math.ceil(1.15 * curve.length / detail))),
curv_absc,
s,
)
x, y = curve.evaluate_multi(new_s)
return x + 1j * y
def __init__(self,
screen: pygame.Surface,
size: int = 50,
pos=(0, 0),
thick=None,
twoPoint=False):
"""
进度条加载
:param screen:
:param size:
:param pos:
:param thick: 默认随着size变化而变化
:param twoPoint: 弧线头尾都会动
"""
self.__p = 0
self.screen = screen
self.size = (size, size)
self.surfaceFrame = pygame.Surface(self.size)
self.pos = pos
self.font = Base.getFont(Con.Font, size // 5)
self.thick = thick or size // 20
self.twoPoint = twoPoint
self.bezier_line = Curve(((.0, .15, .31, 1.0), (.0, .75, .86, 1.0)), 3)
import matplotlib.pyplot as plt
from bezier import Curve
# line
c = Curve((0, 0), (1, 1))
plt.plot(*zip(*c.curve))
plt.scatter(*zip(*c.points))
plt.savefig("line_0-0-1-1.png")
plt.show()
c = Curve((0, 0), (0, 1), (1, 1))
plt.plot(*zip(*c.curve))
plt.scatter(*zip(*c.points))
plt.savefig("curve_0-0-0-1-1-1.png")
plt.show()
# integral
c = Curve((0.4, 0), (0.5, 0), (0.5, 1), (0.6, 1))
plt.plot(*zip(*c.curve))
plt.scatter(*zip(*c.points))
plt.xlim([0, 1])
plt.savefig("curve_0_4-0-0_5-0-0_5-1-0_6-1.png")
plt.show()
# loop
c = Curve((0, 0), (1, 0.5), (0, 1), (0.5, 0))
plt.plot(*zip(*c.curve))
plt.scatter(*zip(*c.points))
plt.savefig("curve_0-0-1-0_5-0-1-0_5-0.png")
plt.show()
return -1
pygame.init()
pygame.display.set_caption("Bezier Curve Editor")
display = pygame.display.set_mode((600, 600))
display.fill((255, 255, 255))
font = pygame.font.Font('freesansbold.ttf', 15)
controls_text = "Left click: add point | Right click: remove point | Drag: Move point"
controls = font.render(controls_text, True, (0, 0, 0), (255, 255, 255))
textRect = controls.get_rect()
display.blit(controls, textRect)
c = Curve(auto_generate=False)
moving_point = -1
modified = False
mouse_down = False
running = True
while running:
for event in pygame.event.get():
if event.type == pygame.QUIT:
running = False
if event.type == pygame.MOUSEBUTTONDOWN:
mouse_down = pygame.mouse.get_pressed()[0]
modified = True
coord = pygame.mouse.get_pos()
moving_point = nearest(c, coord)
if pygame.mouse.get_pressed()[0]:
class Loader:
def __init__(self,
screen: pygame.Surface,
size: int = 50,
pos=(0, 0),
thick=None,
twoPoint=False):
"""
进度条加载
:param screen:
:param size:
:param pos:
:param thick: 默认随着size变化而变化
:param twoPoint: 弧线头尾都会动
"""
self.__p = 0
self.screen = screen
self.size = (size, size)
self.surfaceFrame = pygame.Surface(self.size)
self.pos = pos
self.font = Base.getFont(Con.Font, size // 5)
self.thick = thick or size // 20
self.twoPoint = twoPoint
self.bezier_line = Curve(((.0, .15, .31, 1.0), (.0, .75, .86, 1.0)), 3)
@property
def percent(self):
self.__p = self.__p % 1
return self.__p
@percent.setter
def percent(self, p):
self.__p = p % 1
def generateAngle(self):
if self.twoPoint:
x, y = self.bezier_line.evaluate(float(self.__p))
startAngle, endAngle = Base.angleToFloat(
(-(y[0]) * 360) + 90), Base.angleToFloat(-self.__p * 360 + 90)
startAngle, endAngle = min(startAngle,
endAngle), max(startAngle, endAngle)
return startAngle, endAngle
else:
return Base.angleToFloat((-self.__p) * 360 +
90), Base.angleToFloat(90)
def flush(self, screen=None):
if screen:
self.screen = screen
self.surfaceFrame.fill(Con.BackGround)
start, end = self.generateAngle()
pygame.draw.arc(self.surfaceFrame,
Con.ProgressBarColor, (*(0, 0), *self.size),
start,
end,
width=self.thick)
text = self.font.render(f'{self.percent:.2%}', True, Con.TextColor)
Base.printToCenter(self.surfaceFrame, text)
if self.pos == Const.CENTER_POSITION:
Base.printToCenter(self.screen, self.surfaceFrame)
else:
self.screen.blit(self.surfaceFrame, self.pos)