class Art(ArtBaseClass):
description = "Kaleidoscope"
FITHALF = 0.45 # squeeze radius into 90% of display area
def __init__(self, matrix, config):
self.angle = 0
self.hue = getHueGen(0.01)
self.radius = sqrt(matrix.numpix) * self.FITHALF
self.center = Point(matrix.midWidth, matrix.midHeight)
self.pieslice = self._pieslice(-30, 30)
# used to help with scaling small displays
# freq will have a value of 1 for kilopix displays and hold a
# larger value for smaller displays (up to 4)
self.freq = min(4, max(1, 1024.0/matrix.numpix))
self.clock = 0
# create mask
self.mask = OPCMatrix(matrix.width, matrix.height, None)
self.mask.fillPoly(self.pieslice, WHITE)
matrix.fillPoly(self.pieslice, WHITE)
# create intermediate buffers
self.intermediate1 = OPCMatrix(matrix.width, matrix.height, None)
self.intermediate2 = OPCMatrix(matrix.width, matrix.height, None)
# create private buffer for final rendering before rotate/display
self.private = OPCMatrix(matrix.width, matrix.height, None)
def _offset(self, angle):
return Point(
self.center.x+self.radius*sin(radians(angle)),
self.center.y+self.radius*cos(radians(angle)),
)
def _pieslice(self, offset1, offset2):
return [
self._offset(offset1).coords(),
self._offset(offset2).coords(),
self.center.coords(),
]
def start(self, matrix):
pass
def _draw(self, matrix):
x = matrix.width*random()
y = self.center.y + (self.pieslice[0][1]-self.center.y)*random()
z = 2 + random()*10/self.freq
if random() < 0.1:
color = WHITE
else:
offset = int(random()*4)/4.0 if random() < 0.5 else 0
color = hsvToRgb(offset+self.hue.next(), 1, 1)
if random() < 0.5:
matrix.drawRect(x, y, z, z, color)
else:
matrix.fillRect(x, y, z, z, color)
def _update(self, matrix):
self.clock += 1
if self.clock % ceil(self.freq/2.0) == 0:
if self.clock % self.freq == 0:
matrix.copy(matrix, 1, 0)
for draws in range(5-self.freq):
self._draw(matrix)
def refresh(self, matrix):
#
# use a copy-flip-rotate strategy to build a set of mirrored segments
#
# modify the display
self._update(self.private)
# we just want the top 1/6th pie slice to start
self.private.mask(self.mask)
# the other slices need to be reversed (see later)
self.private.flip(lr=True)
# create the left and right pie slices
self.intermediate1.copy(self.private)
self.intermediate1.rotate(60)
self.intermediate2.copy(self.private)
self.intermediate2.rotate(-60)
# the original needs to be flipped back to its original state
# if it isn't then there'll be flip-flopping between frames
self.private.flip(lr=True)
# drop the slices into the (flipped) original
self.private.add(self.intermediate1)
self.private.add(self.intermediate2)
# the other half is a mirror of what we already have
self.intermediate1.copy(self.private)
self.intermediate1.flip(ud=True)
# drop the mirror onto the matrix
self.private.add(self.intermediate1)
self.private.flip(ud=True)
matrix.copy(self.private)
self.angle -= 1
matrix.rotate(self.angle)
def interval(self):
if self.freq > 2:
return 200
else:
return 150
class Art(ArtBaseClass):
description = "Kaleidoscope"
FITHALF = 0.45 # squeeze radius into 90% of display area
def __init__(self, matrix, config):
self.angle = 0
self.hue = getHueGen(0.01)
self.radius = sqrt(matrix.numpix) * self.FITHALF
self.center = Point(matrix.midWidth, matrix.midHeight)
self.pieslice = self._pieslice(-30, 30)
# used to help with scaling small displays
# freq will have a value of 1 for kilopix displays and hold a
# larger value for smaller displays (up to 4)
self.freq = min(4, max(1, 1024.0 / matrix.numpix))
self.clock = 0
# create mask
self.mask = OPCMatrix(matrix.width, matrix.height, None)
self.mask.fillPoly(self.pieslice, WHITE)
matrix.fillPoly(self.pieslice, WHITE)
# create intermediate buffers
self.intermediate1 = OPCMatrix(matrix.width, matrix.height, None)
self.intermediate2 = OPCMatrix(matrix.width, matrix.height, None)
# create private buffer for final rendering before rotate/display
self.private = OPCMatrix(matrix.width, matrix.height, None)
def _offset(self, angle):
return Point(
self.center.x + self.radius * sin(radians(angle)),
self.center.y + self.radius * cos(radians(angle)),
)
def _pieslice(self, offset1, offset2):
return [
self._offset(offset1).coords(),
self._offset(offset2).coords(),
self.center.coords(),
]
def start(self, matrix):
pass
def _draw(self, matrix):
x = matrix.width * random()
y = self.center.y + (self.pieslice[0][1] - self.center.y) * random()
z = 2 + random() * 10 / self.freq
if random() < 0.1:
color = WHITE
else:
offset = int(random() * 4) / 4.0 if random() < 0.5 else 0
color = hsvToRgb(offset + self.hue.next(), 1, 1)
if random() < 0.5:
matrix.drawRect(x, y, z, z, color)
else:
matrix.fillRect(x, y, z, z, color)
def _update(self, matrix):
self.clock += 1
if self.clock % ceil(self.freq / 2.0) == 0:
if self.clock % self.freq == 0:
matrix.copy(matrix, 1, 0)
for draws in range(5 - self.freq):
self._draw(matrix)
def refresh(self, matrix):
#
# use a copy-flip-rotate strategy to build a set of mirrored segments
#
# modify the display
self._update(self.private)
# we just want the top 1/6th pie slice to start
self.private.mask(self.mask)
# the other slices need to be reversed (see later)
self.private.flip(lr=True)
# create the left and right pie slices
self.intermediate1.copy(self.private)
self.intermediate1.rotate(60)
self.intermediate2.copy(self.private)
self.intermediate2.rotate(-60)
# the original needs to be flipped back to its original state
# if it isn't then there'll be flip-flopping between frames
self.private.flip(lr=True)
# drop the slices into the (flipped) original
self.private.add(self.intermediate1)
self.private.add(self.intermediate2)
# the other half is a mirror of what we already have
self.intermediate1.copy(self.private)
self.intermediate1.flip(ud=True)
# drop the mirror onto the matrix
self.private.add(self.intermediate1)
self.private.flip(ud=True)
matrix.copy(self.private)
self.angle -= 1
matrix.rotate(self.angle)
def interval(self):
if self.freq > 2:
return 200
else:
return 150
