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speed = 1
if speed == 0:
speed = 1
endTime = time.time_ns()
totalTime = endTime - startTime
delayUS = (1000000.0 / speed) - totalTime
if delayUS < 10000.0:
delayUS = 10000
self.w.after(int(delayUS / 1000), self.Animate)
def Reset(self):
for fp in self.footprints:
fp.Reset()
def Start(self):
self.Animate()
self.w.mainloop()
class Nets:
def __init__(self):
self.nets = []
self.netnames = {}
def Load(self, nets):
#net format: net number, name, count, checked
activenets = 0
for i, net in enumerate(nets):
if net[2] > 1:
self.netnames[nets[i][1]] = []
def calc_electron(self, pos1, pos2):
# return [0,0]
dx = pos2[0] - pos1[0]
dy = pos2[1] - pos1[1]
distance = math.sqrt(dx ** 2 + dy ** 2)
if distance == 0:
return [0, 0]
force = ELECTRON_CONSTANT # * distance
return [force * dx / (distance ** 2), force * dy / (distance ** 2)]
def calc_spring(self, pos1, pos2):
# return [0,0]
dx = pos2[0] - pos1[0]
dy = pos2[1] - pos1[1]
distance = math.sqrt(dx ** 2 + dy ** 2)
if distance == 0:
return [0, 0]
force = SPRING_CONSTANT # * distance
return [force * dx, force * dy]
def calc_torque(self, force, xy):
# return 0
distance = math.sqrt(xy[0] ** 2 + xy[1] ** 2)
torque = xy[0]*force[1] - xy[1]*force[0]
return torque * TORQUE_CONSTANT
def Calc(self, footprints, activenets):
for i1, fp1 in enumerate(footprints):
for i2, fp2 in enumerate(footprints):
if i1 != i2:
if footprints[i1].locked == False:
force = self.calc_electron(fp1.coord_current, fp2.coord_current)
footprints[i1].momentum[0] -= force[0]
footprints[i1].momentum[1] -= force[1]
for net in activenets:
for i, conn in enumerate(self.netnames[net]):
for e, conn in enumerate(self.netnames[net]):
if i != e:
pos1 = self.netnames[net][i]
pos2 = self.netnames[net][e]
if pos1[0] != pos2[0]:
if footprints[pos1[0]].locked == False:
xy1 = [sum(x) for x in zip(footprints[pos1[0]].anchors_rotated[pos1[1]], footprints[pos1[0]].coord_current)]
xy2 = [sum(x) for x in zip(footprints[pos2[0]].anchors_rotated[pos2[1]], footprints[pos2[0]].coord_current)]
force = self.calc_spring(xy1, xy2)
torque = self.calc_torque(force, footprints[pos1[0]].anchors_rotated[pos1[1]])
footprints[pos1[0]].momentum[0] += force[0]
footprints[pos1[0]].momentum[1] += force[1]
footprints[pos1[0]].momentum[2] += torque
for i, fp in enumerate(footprints):
footprints[i].momentum[0] *= DAMPING
footprints[i].momentum[1] *= DAMPING
footprints[i].momentum[2] *= DAMPING
def Associate(self, footprints):
for i_f, fp in enumerate(footprints):
for i_p, pad in enumerate(fp.nets):
if len(pad) > 1:
if pad[1] in self.netnames:
self.netnames[pad[1]].append([i_f, i_p])
class Footprint:
def __init__(self, mod = False):
self.coord_initial = [0,0,0]