def getPartialDerivatives(px, u, v, op, size):
"""
Returns the partial derivatives of the image at the given pixel
coordinate.
Parameters:
px ([]): A 1D list of pixel values from the original image.
uv (integer tuple): A tuple containing two zero-indexed
values for sampling.
op (value function): The operation to be used to get a value
from a pixel.
size((int)): A tuple containing the width and height of the
image.
Returns:
a tuple of two vec3s, each containing the partial derivative
along its
axis.
"""
dy = (op(getPx(px, u, v, size)) * .01 -
op(getPx(px, u, v - 1, size)) * .01)
dx = (op(getPx(px, u, v, size)) * .01 -
op(getPx(px, u - 1, v, size)) * .01)
return (vec3(1.0, dx, 0), vec3(0, dy, 1.0))
def GetNumStepBySource(pos,coreconf):
"""
Retourne le pas de temps où le son direct est censé rejoindre la position pos pour chaque source sonore
"""
ret_tab={}
if coreconf.const["ajouter_son_direct"]:
for src in coreconf.sources_lst:
if coreconf.const["temporel"]:
dist=(vec3(pos)-vec3(src.pos)).length()
ret_tab[src.id]=int(math.floor(dist/(coreconf.const["cel"]*coreconf.const["pasdetemps"])))
else:
ret_tab[src.id]=0
return ret_tab
def project3D_on_2D(point3D, n, p):
v = point3D - p
perp_dist = v.dot(n)
projected = point3D - perp_dist * n
x = int(projected.x)
y = int(projected.y)
return vec3(x, y, 0) # or just use projected if no integer casting
def _get_local_quat(self):
rot = self.get_fixed_attribute("r", default=vec3(0,0,0))
qx = quat().fromAngleAxis(rot[0], (1, 0, 0))
qy = quat().fromAngleAxis(rot[1], (0, 1, 0))
qz = quat().fromAngleAxis(rot[2], (0, 0, 1))
q = qz*qy*qx
return q
def getabsirot(self):
root = self.getphysmaster().getParent()
#print("getabsirot checking", root)
ir = root.gettransformto(None, "inverse_initial_r").decompose()[1]
if root.flipjoints:
ir = ir.rotate(math.pi, vec3(1,0,0))
return ir
def __mul__(self, other):
"""Multiplication with a scalar or dot product.
>>> a=vec3(1.0, 0.5, -1.8)
>>> b=vec3(-0.3, 0.75, 0.5)
>>> print a*2.0
(2.0000, 1.0000, -3.6000)
>>> print 2.0*a
(2.0000, 1.0000, -3.6000)
>>> print a*b
-0.825
"""
T = type(other)
# vec3*scalar
if T==types.FloatType or T==types.IntType or T==types.LongType:
return vec3(self.x*other, self.y*other, self.z*other)
# vec3*vec3
if isinstance(other, vec3):
return self.x*other.x + self.y*other.y + self.z*other.z
# unsupported
else:
# Try to delegate the operation to the other operand
if getattr(other,"__rmul__",None)!=None:
return other.__rmul__(self)
else:
raise TypeError, "unsupported operand type for *"
def __mul__(self, other):
"""Multiplication with a scalar or dot product.
>>> a=vec3(1.0, 0.5, -1.8)
>>> b=vec3(-0.3, 0.75, 0.5)
>>> print a*2.0
(2.0000, 1.0000, -3.6000)
>>> print 2.0*a
(2.0000, 1.0000, -3.6000)
>>> print a*b
-0.825
"""
T = type(other)
# vec3*scalar
if T == types.FloatType or T == types.IntType or T == types.LongType:
return vec3(self.x * other, self.y * other, self.z * other)
# vec3*vec3
if isinstance(other, vec3):
return self.x * other.x + self.y * other.y + self.z * other.z
# unsupported
else:
# Try to delegate the operation to the other operand
if getattr(other, "__rmul__", None) != None:
return other.__rmul__(self)
else:
raise TypeError, "unsupported operand type for *"
def __pos__(self):
"""
>>> a=vec3(3.0, 2.5, -1.8)
>>> print +a
(3.0000, 2.5000, -1.8000)
"""
return vec3(+self.x, +self.y, +self.z)
def _get_local_quat(self):
rot = self.get_fixed_attribute("r", default=vec3(0, 0, 0))
qx = quat().fromAngleAxis(rot[0], (1, 0, 0))
qy = quat().fromAngleAxis(rot[1], (0, 1, 0))
qz = quat().fromAngleAxis(rot[2], (0, 0, 1))
q = qy * qz * qx
return q
def __pos__(self):
"""
>>> a=vec3(3.0, 2.5, -1.8)
>>> print +a
(3.0000, 2.5000, -1.8000)
"""
return vec3(+self.x, +self.y, +self.z)
def __mod__(self, other):
"""Modulo (component wise)
>>> a=vec3(3.0, 2.5, -1.8)
>>> print a%2.0
(1.0000, 0.5000, 0.2000)
"""
T = type(other)
# vec3%scalar
if T == types.FloatType or T == types.IntType or T == types.LongType:
return vec3(self.x % other, self.y % other, self.z % other)
# vec3%vec3
if isinstance(other, vec3):
return vec3(self.x % other.x, self.y % other.y, self.z % other.z)
# unsupported
else:
raise TypeError, "unsupported operand type for %"
def __mod__(self, other):
"""Modulo (component wise)
>>> a=vec3(3.0, 2.5, -1.8)
>>> print a%2.0
(1.0000, 0.5000, 0.2000)
"""
T = type(other)
# vec3%scalar
if T==types.FloatType or T==types.IntType or T==types.LongType:
return vec3(self.x%other, self.y%other, self.z%other)
# vec3%vec3
if isinstance(other, vec3):
return vec3(self.x%other.x, self.y%other.y, self.z%other.z)
# unsupported
else:
raise TypeError, "unsupported operand type for %"
def __neg__(self):
"""Negation
>>> a=vec3(3.0, 2.5, -1.8)
>>> print -a
(-3.0000, -2.5000, 1.8000)
"""
return vec3(-self.x, -self.y, -self.z)
def __neg__(self):
"""Negation
>>> a=vec3(3.0, 2.5, -1.8)
>>> print -a
(-3.0000, -2.5000, 1.8000)
"""
return vec3(-self.x, -self.y, -self.z)
def _fixup(self):
"""Adjust the up vector so that it's orthogonal to the view direction."""
n = unit(self.center - self.eye)
v = cross(n, self.up)
if v == vec3(0, 0, 0):
print >> sys.stderr, "?? up vector (%g,%g,%g) parallel to view vector (%g,%g,%g)" % (
self.up.x, self.up.y, self.up.z, n.x, n.y, n.z)
v = find_basis(n)[0]
self.up = unit(cross(v, n))
def Transform(self, x, y, z):
for c in self.cells:
if c.contains(x, y, z):
x += c.ix
y += c.iy
z += c.iz
p = vec3(x, y, z)
return (dot(p, self.n1), dot(p, self.n2), dot(p, self.n3))
raise RuntimeError, "(%g,%g,%g) not contained in any cell" % (x, y, z)
def normalize(self):
"""Return normalized vector.
>>> a=vec3(1.0, 0.5, -1.8)
>>> print a.normalize()
(0.4719, 0.2360, -0.8495)
"""
nlen = 1.0/math.sqrt(self*self)
return vec3(self.x*nlen, self.y*nlen, self.z*nlen)
def normalize(self):
"""Return normalized vector.
>>> a=vec3(1.0, 0.5, -1.8)
>>> print a.normalize()
(0.4719, 0.2360, -0.8495)
"""
nlen = 1.0 / math.sqrt(self * self)
return vec3(self.x * nlen, self.y * nlen, self.z * nlen)
def isortho(self):
l = [vec4(1,0,0,1), vec4(0,1,0,1), vec4(0,0,1,1)]
p = vec3(self.get_world_translation()[0:3])
t = self.get_world_transform()
for i in range(3):
l[i] = t * l[i]
for i in range(3):
for j in range(3):
if i != j:
k = ((i+1)^(j+1))-1
u = vec3(l[i][0:3])-p
v = vec3(l[j][0:3])-p
w = vec3(l[k][0:3])-p
s = u.cross(v)
a = abs((s * w) / (s.length()*w.length()))
if a <= 0.99:
#print(i,j,k,u,v,w,s)
#print("cos(a) of %s is %f." % (self.getFullName(), a))
return False
return True
def angle(self, other):
"""Return angle (in radians) between self and other.
>>> a=vec3(1.0, 0.5, -1.8)
>>> b=vec3(-0.3, 0.75, 0.5)
>>> print a.angle(b)
1.99306755584
"""
other = vec3(other)
return math.acos((self * other) / (abs(self) * abs(other)))
def isortho(self):
l = [vec4(1, 0, 0, 1), vec4(0, 1, 0, 1), vec4(0, 0, 1, 1)]
p = vec3(self.get_world_translation()[0:3])
t = self.get_world_transform()
for i in range(3):
l[i] = t * l[i]
for i in range(3):
for j in range(3):
if i != j:
k = ((i + 1) ^ (j + 1)) - 1
u = vec3(l[i][0:3]) - p
v = vec3(l[j][0:3]) - p
w = vec3(l[k][0:3]) - p
s = u.cross(v)
a = abs((s * w) / (s.length() * w.length()))
if a <= 0.99:
#print(i,j,k,u,v,w,s)
#print("cos(a) of %s is %f." % (self.getFullName(), a))
return False
return True
def refract(self, N, eta):
"""Return the transmitted vector.
N is the surface normal which has to be of unit length.
eta is the relative index of refraction. If the returned
vector is zero then there is no transmitted light because
of total internal reflection.
>>> a=vec3(1.0, -1.5, 0.8)
>>> print a.refract(vec3(0,1,0), 1.33)
(1.3300, -1.7920, 1.0640)
"""
N = vec3(N)
dot = self * N
k = 1.0 - eta * eta * (1.0 - dot * dot)
if k < 0:
return vec3(0.0, 0.0, 0.0)
else:
return eta * self - (eta * dot + math.sqrt(k)) * N
def refract(self, N, eta):
"""Return the transmitted vector.
N is the surface normal which has to be of unit length.
eta is the relative index of refraction. If the returned
vector is zero then there is no transmitted light because
of total internal reflection.
>>> a=vec3(1.0, -1.5, 0.8)
>>> print a.refract(vec3(0,1,0), 1.33)
(1.3300, -1.7920, 1.0640)
"""
N = vec3(N)
dot = self*N
k = 1.0 - eta*eta*(1.0 - dot*dot)
if k<0:
return vec3(0.0,0.0,0.0)
else:
return eta*self - (eta*dot + math.sqrt(k))*N
def _get_local_ar(self):
ra = vec3(self.get_fixed_attribute("ra", default=vec3(0, 0, 0)))
x, y, z = mat4.identity(), mat4.identity(), mat4.identity()
x[1, 1] = +math.cos(ra.x)
x[1, 2] = +math.sin(ra.x)
x[2, 1] = -math.sin(ra.x)
x[2, 2] = +math.cos(ra.x)
y[0, 0] = +math.cos(ra.y)
y[0, 2] = -math.sin(ra.y)
y[2, 0] = +math.sin(ra.y)
y[2, 2] = +math.cos(ra.y)
z[0, 0] = +math.cos(ra.z)
z[0, 1] = +math.sin(ra.z)
z[1, 0] = -math.sin(ra.z)
z[1, 1] = +math.cos(ra.z)
ro = self.getAttrValue("ro", "ro", "int", default=0)
rotorder = ["x*y*z", "y*z*x", "z*x*y", "x*z*y", "y*x*z", "z*y*x"]
mra = eval(rotorder[ro])
#print("Result of rot:", mra*vec4(0,1,0,0))
return mra
def angle(self, other):
"""Return angle (in radians) between self and other.
>>> a=vec3(1.0, 0.5, -1.8)
>>> b=vec3(-0.3, 0.75, 0.5)
>>> print a.angle(b)
1.99306755584
"""
other = vec3(other)
return math.acos((self*other) / (abs(self)*abs(other)))
def _get_local_ar(self):
ra = vec3(self.get_fixed_attribute("ra", default=vec3(0,0,0)))
x, y, z = mat4.identity(), mat4.identity(), mat4.identity()
x[1,1] = +math.cos(ra.x)
x[1,2] = +math.sin(ra.x)
x[2,1] = -math.sin(ra.x)
x[2,2] = +math.cos(ra.x)
y[0,0] = +math.cos(ra.y)
y[0,2] = -math.sin(ra.y)
y[2,0] = +math.sin(ra.y)
y[2,2] = +math.cos(ra.y)
z[0,0] = +math.cos(ra.z)
z[0,1] = +math.sin(ra.z)
z[1,0] = -math.sin(ra.z)
z[1,1] = +math.cos(ra.z)
ro = self.getAttrValue("ro", "ro", "int", default=0)
rotorder = ["x*y*z", "y*z*x", "z*x*y", "x*z*y", "y*x*z", "z*y*x"]
mra = eval(rotorder[ro])
#print("Result of rot:", mra*vec4(0,1,0,0))
return mra
def __init__(self,
width,
height,
center=(0, 0, 0),
eye=(0, 0, 1),
up=(0, 1, 0)):
self.width = width
self.height = height
self.z = 1.0
if eye == center:
print >> sys.stderr, "?? eye and center position coincide"
eye = (center[0], center[1], center[2] + 1)
self.center = vec3(center)
self.eye = vec3(eye)
self.up = vec3(up)
self._fixup()
self.mx = None
self.my = None
self.rotating_graphic = None
self.translating_graphic = None
def __init__(self,filename, layers):
fileText = getFileText( filename )
textLines = getTextLines( fileText )
self.last_pos = vec3()
self.layers = layers
self.layer = None
self.thread = None
self.skeinforge = 0
self.max_z = -9999999999
for line in textLines:
self.parseLine( line )
self.newLayer()
def reflect(self, N):
"""Return the reflection vector.
N is the surface normal which has to be of unit length.
>>> a=vec3(1.0, 0.5, -1.8)
>>> print a.reflect(vec3(1,0,1))
(2.6000, 0.5000, -0.2000)
"""
N = vec3(N)
return self - 2.0*(self*N)*N
def __add__(self, other):
"""Vector addition.
>>> a=vec3(1.0, 0.5, -1.8)
>>> b=vec3(-0.3, 0.75, 0.5)
>>> print a+b
(0.7000, 1.2500, -1.3000)
"""
if isinstance(other, vec3):
return vec3(self.x+other.x, self.y+other.y, self.z+other.z)
else:
raise TypeError, "unsupported operand type for +"
def linearMove( self, splitLine ):
if self.thread != None:
pos = vec3().getFromVec3(self.last_pos)
self.setPointComponent( pos, splitLine )
if pos.z > self.max_z:
self.newLayer()
self.max_z = pos.z
if pos.z < self.last_pos.z:
self.newThread()
if self.skeinforge or pos.z < self.max_z:
self.thread.append(pos)
self.last_pos = pos
def reflect(self, N):
"""Return the reflection vector.
N is the surface normal which has to be of unit length.
>>> a=vec3(1.0, 0.5, -1.8)
>>> print a.reflect(vec3(1,0,1))
(2.6000, 0.5000, -0.2000)
"""
N = vec3(N)
return self - 2.0 * (self * N) * N
def __sub__(self, other):
"""Vector subtraction.
>>> a=vec3(1.0, 0.5, -1.8)
>>> b=vec3(-0.3, 0.75, 0.5)
>>> print a-b
(1.3000, -0.2500, -2.3000)
"""
if isinstance(other, vec3):
return vec3(self.x - other.x, self.y - other.y, self.z - other.z)
else:
raise TypeError, "unsupported operand type for -"
def __sub__(self, other):
"""Vector subtraction.
>>> a=vec3(1.0, 0.5, -1.8)
>>> b=vec3(-0.3, 0.75, 0.5)
>>> print a-b
(1.3000, -0.2500, -2.3000)
"""
if isinstance(other, vec3):
return vec3(self.x-other.x, self.y-other.y, self.z-other.z)
else:
raise TypeError, "unsupported operand type for -"
def __add__(self, other):
"""Vector addition.
>>> a=vec3(1.0, 0.5, -1.8)
>>> b=vec3(-0.3, 0.75, 0.5)
>>> print a+b
(0.7000, 1.2500, -1.3000)
"""
if isinstance(other, vec3):
return vec3(self.x + other.x, self.y + other.y, self.z + other.z)
else:
raise TypeError, "unsupported operand type for +"
def make_images(layers):
palette = []
for i in range(256):
#resistor colour codes
if i == 1:
palette.extend((134, 100, 57)) # brown
elif i == 2:
palette.extend((255, 0, 0)) # red
elif i == 3:
palette.extend((218, 90, 35)) # orange
elif i == 4:
palette.extend((255, 255, 0)) # yellow
elif i == 5:
palette.extend((0, 255, 0)) # green
elif i == 6:
palette.extend((0, 0, 255)) # blue
elif i == 7:
palette.extend((255, 0, 255)) # purple
else:
palette.extend((i, i, i)) # shades of grey
cube = bounding_cube(layers)
scale = 10
x0 = int(cube[0].x) - 1
y0 = int(cube[0].y) - 1
width = int(round(cube[1].x - x0) + 1) * scale
height = int(round(cube[1].y - y0) + 1) * scale
last_pos = None
images = []
for layer in layers:
image = Image.new('P', (width, height), 255)
image.putpalette(palette)
draw = ImageDraw.Draw(image)
segment = 0
for thread in layer:
if last_pos != None:
draw.line((((last_pos.x - x0) * scale, height -
(last_pos.y - y0) * scale),
((thread[0].x - x0) * scale, height -
(thread[0].y - y0) * scale)),
fill=128)
last_pos = vec3().getFromVec3(thread[0])
for point in thread[1:]:
draw.line((((last_pos.x - x0) * scale, height -
(last_pos.y - y0) * scale),
((point.x - x0) * scale, height -
(point.y - y0) * scale)),
fill=segment % 8)
last_pos.getFromVec3(point)
segment = segment + 1
images.append(image)
return images
def __div__(self, other):
"""Division by scalar
>>> a=vec3(1.0, 0.5, -1.8)
>>> print a/2.0
(0.5000, 0.2500, -0.9000)
"""
T = type(other)
# vec3/scalar
if T==types.FloatType or T==types.IntType or T==types.LongType:
return vec3(self.x/other, self.y/other, self.z/other)
# unsupported
else:
raise TypeError, "unsupported operand type for /"
def ortho(self):
"""Returns an orthogonal vector.
Returns a vector that is orthogonal to self (where
self*self.ortho()==0).
>>> a=vec3(1.0, -1.5, 0.8)
>>> print round(a*a.ortho(),8)
0.0
"""
x=abs(self.x)
y=abs(self.y)
z=abs(self.z)
# Is z the smallest element? Then use x and y
if z<=x and z<=y:
return vec3(-self.y, self.x, 0.0)
# Is y smallest element? Then use x and z
elif y<=x and y<=z:
return vec3(-self.z, 0.0, self.x)
# x is smallest
else:
return vec3(0.0, -self.z, self.y)
def ortho(self):
"""Returns an orthogonal vector.
Returns a vector that is orthogonal to self (where
self*self.ortho()==0).
>>> a=vec3(1.0, -1.5, 0.8)
>>> print round(a*a.ortho(),8)
0.0
"""
x = abs(self.x)
y = abs(self.y)
z = abs(self.z)
# Is x the smallest element?
if x < y and x < z:
return vec3(0.0, -self.z, self.y)
# Is y smallest element?
elif y < z:
return vec3(-self.z, 0.0, self.x)
# z is smallest
else:
return vec3(-self.y, self.x, 0.0)
def bounding_cube(layers):
min_x = 999999
min_y = 999999
min_z = 999999
max_x = -999999
max_y = -999999
max_z = -999999
for layer in layers:
for thread in layer:
for point in thread:
if point.x > max_x:
max_x = point.x
if point.y > max_y:
max_y = point.y
if point.z > max_z:
max_z = point.z
if point.x < min_x:
min_x = point.x
if point.y < min_y:
min_y = point.y
if point.z < min_z:
min_z = point.z
return vec3().getFromXYZ(min_x, min_y, min_z), vec3().getFromXYZ(max_x, max_y, max_z)
def __truediv__(self, other):
"""Division by scalar
>>> a=vec3(1.0, 0.5, -1.8)
>>> print a/2.0
(0.5000, 0.2500, -0.9000)
"""
T = type(other)
# vec3/scalar
if T in [int, float, long]:
return vec3(self.x / other, self.y / other, self.z / other)
# unsupported
else:
raise TypeError("unsupported operand type for /")
def __div__(self, other):
"""Division by scalar
>>> a=vec3(1.0, 0.5, -1.8)
>>> print a/2.0
(0.5000, 0.2500, -0.9000)
"""
T = type(other)
# vec3/scalar
if T == types.FloatType or T == types.IntType or T == types.LongType:
return vec3(self.x / other, self.y / other, self.z / other)
# unsupported
else:
raise TypeError, "unsupported operand type for /"
def __truediv__(self, other):
"""Division by scalar
>>> a=vec3(1.0, 0.5, -1.8)
>>> print a/2.0
(0.5000, 0.2500, -0.9000)
"""
T = type(other)
# vec3/scalar
if T in [int, float, long]:
return vec3(self.x/other, self.y/other, self.z/other)
# unsupported
else:
raise TypeError("unsupported operand type for /")
def ortho(self):
"""Returns an orthogonal vector.
Returns a vector that is orthogonal to self (where
self*self.ortho()==0).
>>> a=vec3(1.0, -1.5, 0.8)
>>> print round(a*a.ortho(),8)
0.0
"""
x=abs(self.x)
y=abs(self.y)
z=abs(self.z)
# Is x the smallest element?
if x<y and x<z:
return vec3(0.0, -self.z, self.y)
# Is y smallest element?
elif y<z:
return vec3(-self.z, 0.0, self.x)
# z is smallest
else:
return vec3(-self.y, self.x, 0.0)
def ortho(self):
"""Returns an orthogonal vector.
Returns a vector that is orthogonal to self (where
self*self.ortho()==0).
>>> a=vec3(1.0, -1.5, 0.8)
>>> print round(a*a.ortho(),8)
0.0
"""
x = abs(self.x)
y = abs(self.y)
z = abs(self.z)
# Is z the smallest element? Then use x and y
if z <= x and z <= y:
return vec3(-self.y, self.x, 0.0)
# Is y smallest element? Then use x and z
elif y <= x and y <= z:
return vec3(-self.z, 0.0, self.x)
# x is smallest
else:
return vec3(0.0, -self.z, self.y)
def bounding_cube(layers):
min_x = 999999
min_y = 999999
min_z = 999999
max_x = -999999
max_y = -999999
max_z = -999999
for layer in layers:
for thread in layer:
for point in thread:
if point.x > max_x:
max_x = point.x
if point.y > max_y:
max_y = point.y
if point.z > max_z:
max_z = point.z
if point.x < min_x:
min_x = point.x
if point.y < min_y:
min_y = point.y
if point.z < min_z:
min_z = point.z
return vec3().getFromXYZ(min_x, min_y,
min_z), vec3().getFromXYZ(max_x, max_y, max_z)
def cross(self, other):
"""Cross product.
>>> a=vec3(1.0, 0.5, -1.8)
>>> b=vec3(-0.3, 0.75, 0.5)
>>> c=a.cross(b)
>>> print c
(1.6000, 0.0400, 0.9000)
"""
if isinstance(other, vec3):
return vec3(self.y * other.z - self.z * other.y,
self.z * other.x - self.x * other.z,
self.x * other.y - self.y * other.x)
else:
raise TypeError, "unsupported operand type for cross()"
def centerverts(group, bodies, verbose):
for shape in group:
vtx = shape.get_fixed_attribute("rgvtx", optional=True)
if not vtx:
continue
mesh = shape.getParent();
if not mesh.get_fixed_attribute("center_vertices", optional=True):
continue
# Center around physics position, by removing translational offset for each vertex.
phys,physidx,q,p,s = mesh.get_final_mesh_transform(None, bodies, verbose)
p = quat(q).rotateVec(p)
if verbose:
print("Offsetting %s's %i vertices around %s, moving them %s." % (mesh.getName(), len(vtx)/3, phys.getName(), str(p)))
for idx in range(0, len(vtx), 3):
v = vec3(vtx[idx:idx+3]) + p
vtx[idx:idx+3] = v[:3]
def cross(self, other):
"""Cross product.
>>> a=vec3(1.0, 0.5, -1.8)
>>> b=vec3(-0.3, 0.75, 0.5)
>>> c=a.cross(b)
>>> print c
(1.6000, 0.0400, 0.9000)
"""
if isinstance(other, vec3):
return vec3(self.y*other.z-self.z*other.y,
self.z*other.x-self.x*other.z,
self.x*other.y-self.y*other.x)
else:
raise TypeError, "unsupported operand type for cross()"
def crossProduct(first, second):
"""Cross product.
>>> a=vec3(1.0, 0.5, -1.8)
>>> b=vec3(-0.3, 0.75, 0.5)
>>> c=vec3.cross(a, b)
>>> print c
(1.6000, 0.0400, 0.9000)
"""
if isinstance(first, vec3) and isinstance(second, vec3):
return vec3(first.y*second.z-first.z*second.y,
first.z*second.x-first.x*second.z,
first.x*second.y-first.y*second.x)
else:
raise TypeError("unsupported operand type for cross()")
def make_images(layers):
palette = []
for i in range(256):
#resistor colour codes
if i == 1:
palette.extend((134, 100, 57)) # brown
elif i == 2:
palette.extend((255, 0, 0)) # red
elif i == 3:
palette.extend((218, 90, 35)) # orange
elif i == 4:
palette.extend((255, 255, 0)) # yellow
elif i == 5:
palette.extend(( 0, 255, 0)) # green
elif i == 6:
palette.extend(( 0, 0, 255)) # blue
elif i == 7:
palette.extend((255, 0, 255)) # purple
else:
palette.extend((i, i, i)) # shades of grey
cube = bounding_cube(layers)
scale = 10
x0 = int(cube[0].x) - 1
y0 = int(cube[0].y) - 1
width = int(round(cube[1].x - x0) + 1) * scale
height = int(round(cube[1].y - y0) + 1) * scale
last_pos = None
images = []
for layer in layers:
image = Image.new('P', (width, height), 255)
image.putpalette(palette)
draw = ImageDraw.Draw(image)
segment = 0
for thread in layer:
if last_pos != None:
draw.line(((( last_pos.x - x0) * scale, height - ( last_pos.y - y0) * scale),
((thread[0].x - x0) * scale, height - (thread[0].y - y0) * scale)), fill = 128)
last_pos = vec3().getFromVec3(thread[0])
for point in thread[1:]:
draw.line((((last_pos.x - x0) * scale, height - (last_pos.y - y0) * scale),
( (point.x - x0) * scale, height - (point.y - y0) * scale)), fill = segment % 8)
last_pos.getFromVec3(point)
segment = segment + 1
images.append(image)
return images
def on_mouse_press(self, mx, my, button=mouse.LEFT, modifiers=0):
x, y, z, r = self._getbasis()
shift, ctrl = (modifiers & key.MOD_SHIFT, modifiers & key.MOD_CTRL)
if button == mouse.LEFT:
self.rotating_graphic = [
vec3(self.center),
vec3(x),
vec3(y),
vec3(z),
float(r)
]
elif button == mouse.RIGHT:
self.translating_graphic = [
vec3(self.center),
vec3(x),
vec3(y),
vec3(z),
float(r)
]
self.mx = mx
self.my = my
def _get_local_s(self):
return self.get_fixed_attribute("s", default=vec3(1,1,1))
def __init__(self, *args):
"""Constructor.
There are several possibilities how to initialize a vector:
v = vec3() -> v = <0,0,0>
v = vec3(a) -> v = <a,a,a>
v = vec3(x,y) -> v = <x,y,0>
v = vec3(x,y,z) -> v = <x,y,z>
Note that specifying just one value sets all three components to
that value (except when that single value is a another vec3, then
that vector is copied).
Additionally you can wrap those values in a list or a tuple or
specify them as a string:
v = vec3([1,2,3]) -> v = <1,2,3>
v = vec3("4,5") -> v = <4,5,0>
"""
if len(args) == 0:
self.x, self.y, self.z = (0.0, 0.0, 0.0)
elif len(args) == 1:
T = type(args[0])
# scalar
if T == types.FloatType or T == types.IntType or T == types.LongType:
self.x, self.y, self.z = (args[0], args[0], args[0])
# vec3
elif isinstance(args[0], vec3):
self.x, self.y, self.z = args[0]
# Tuple/List
elif T == types.TupleType or T == types.ListType:
if len(args[0]) == 0:
self.x = self.y = self.z = 0.0
elif len(args[0]) == 1:
self.x = self.y = self.z = args[0][0]
elif len(args[0]) == 2:
self.x, self.y = args[0]
self.z = 0.0
elif len(args[0]) == 3:
self.x, self.y, self.z = args[0]
else:
raise TypeError, "vec3() takes at most 3 arguments"
# String
elif T == types.StringType:
s = args[0].replace(",", " ").replace(" ",
" ").strip().split(" ")
if s == [""]:
s = []
f = map(lambda x: float(x), s)
dummy = vec3(f)
self.x, self.y, self.z = dummy
# error
else:
raise TypeError, "vec3() arg can't be converted to vec3"
elif len(args) == 2:
self.x, self.y, self.z = (args[0], args[1], 0.0)
elif len(args) == 3:
self.x, self.y, self.z = args
else:
raise TypeError, "vec3() takes at most 3 arguments"
def _pointup_adjust_mat(self): if hasattr(self, "pointup") and self.pointup: # Some primitives have different orientation in the editor compared to # the runtime environment (Maya along Y-axis, RGE along Z-axis). return mat4.rotation(-math.pi/2, vec3(1,0,0)) return mat4(1)
def _get_local_rpivot(self):
return self.get_fixed_attribute("rp", default=vec3(0,0,0))
def ang0(self):
C = vec3(1.0, 0.0, 0.0)
try:
return self.angle(C)
except:
return 0.0
def __init__(self, *args):
"""Constructor.
There are several possibilities how to initialize a vector:
v = vec3() -> v = <0,0,0>
v = vec3(a) -> v = <a,a,a>
v = vec3(x,y) -> v = <x,y,0>
v = vec3(x,y,z) -> v = <x,y,z>
Note that specifying just one value sets all three components to
that value (except when that single value is a another vec3, then
that vector is copied).
Additionally you can wrap those values in a list or a tuple or
specify them as a string:
v = vec3([1,2,3]) -> v = <1,2,3>
v = vec3("4,5") -> v = <4,5,0>
"""
if len(args)==0:
self.x, self.y, self.z = (0.0, 0.0, 0.0)
elif len(args)==1:
T = type(args[0])
# scalar
if T==types.FloatType or T==types.IntType or T==types.LongType:
f = float(args[0])
self.x, self.y, self.z = (f, f, f)
# vec3
elif isinstance(args[0], vec3):
self.x, self.y, self.z = args[0]
# Tuple/List
elif T==types.TupleType or T==types.ListType:
if len(args[0])==0:
self.x = self.y = self.z = 0.0
elif len(args[0])==1:
self.x = self.y = self.z = float(args[0][0])
elif len(args[0])==2:
self.x = float(args[0][0])
self.y = float(args[0][1])
self.z = 0.0
elif len(args[0])==3:
x,y,z = args[0]
self.x = float(x)
self.y = float(y)
self.z = float(z)
else:
raise TypeError, "vec3() takes at most 3 arguments"
# String
elif T==types.StringType:
s=args[0].replace(","," ").replace(" "," ").strip().split(" ")
if s==[""]:
s=[]
f=map(lambda x: float(x), s)
dummy = vec3(f)
self.x, self.y, self.z = dummy
# error
else:
raise TypeError,"vec3() arg can't be converted to vec3"
elif len(args)==2:
self.x, self.y, self.z = (float(args[0]), float(args[1]), 0.0)
elif len(args)==3:
x,y,z = args
self.x = float(x)
self.y = float(y)
self.z = float(z)
else:
raise TypeError, "vec3() takes at most 3 arguments"
