def create_lines(linepar):
'''
Expect 4 line parameters, i.e. icxy, slxy, icxz, slxz
to create a line3 object used in extrapolation.
Intercepts are taken at foil x=0 by construction.
'''
best = linepar[0]
err = linepar[1]
icxy = best[0]
slxy = best[1]
icxz = best[2]
slxz = best[3]
err_icxy = err[0]
err_slxy = err[1]
err_icxz = err[2]
err_slxz = err[3]
# center
p = EU.Point3(0.0, icxy, icxz)
vec = EU.Vector3(1.0, slxy, slxz)
lc = EU.Line3(p, vec)
# left
vec = EU.Vector3(1.0, slxy - err_slxy, slxz)
ll = EU.Line3(p, vec)
# right
vec = EU.Vector3(1.0, slxy + err_slxy, slxz)
lr = EU.Line3(p, vec)
# top
vec = EU.Vector3(1.0, slxy, slxz - err_slxz)
lt = EU.Line3(p, vec)
# bottom
vec = EU.Vector3(1.0, slxy, slxz + err_slxz)
lb = EU.Line3(p, vec)
return [lc, ll, lr, lt, lb]
def __init__(self, id, par, bplist):
self.id = id
self.bplist = bplist # contains break points (bpx,bpy,bplayer) if any
vec = euclid.Vector3(par[0], par[1], par[2])
pt = euclid.Point3(par[3], par[4], par[5])
self.line = euclid.Line3(
pt, vec) # convenience, not useful for helix truth
self.parstore = par # in case the bare data is requested
def hits(self, line=None, side=0):
"""
Input: A euclid line3 object
The tracker side (=0 -> left tracker default)
Process: Determine the nearest wires given a line throught the
initial grid and cut on those wires closer than the
lattice constant.
Output: 2 Lists of wire coordinates and radii = shortest distance
wire to line
"""
zvec = euclid.Vector3(0.0,0.0,1.0) # zaxis vector for 3D wire line
darr = np.zeros((self.rows, self.columns))
zcoord = np.zeros((self.rows, self.columns))
if side < 1:
sign = -1
tracker = self.grid_left
else:
sign = 1
tracker = self.grid_right
self.wireinfo = [] # clean start
m = 0
for entry in tracker: # rows
for n in range(len(entry)): # columns
if isinstance(line, euclid.Line3): # input was a Line3 object
pos = euclid.Point3(entry[n][0], entry[n][1], 0.0) # point of wire in grid
wire = euclid.Line3(pos,zvec) # wire into a vertical 3D line
segm = wire.connect(line)
zcoord[m][n] = segm.p.z
darr[m][n] = segm.length # shortest distance line to line in 3D
elif isinstance(line, HX.helix): # input was a Helix object
distance = line.GetDistanceToPoint((entry[n][0]*1.0e-3, entry[n][1]*1.0e-3, 0.0)) # input in [m]
zcoord[m][n] = sign*line.tanlambda * entry[n][0] # [mm]
darr[m][n] = distance[0]*1.0e3 # [mm] shortest distance helix to wire point in 2D
else:
print 'grid ERROR: input type unknown, not line nor helix'
return [], []
m += 1
cells = []
radius = []
iarr,jarr = np.where(darr <= (0.51*self.d)) #allow minimal overlap
for ind,item in enumerate(iarr):
jind = jarr[ind]
pair = list(tracker[item][jind])
pair.append(zcoord[item][jind])
#print 'hit: ',pair
self.wireinfo.append((side, jind, item)) # side, row, column
cells.append(pair) # wire (x,y) and z concatenated
radius.append(darr[item][jind])
return cells, radius
def single_line_manual_atplane(self, slope, interceptx, intercepty):
# no container needed
vec = euclid.Vector3(1.0, slope,0.0)
pos = euclid.Point3(interceptx, intercepty, 0.0) # fix at icx, iy point
return euclid.Line3(pos,vec)
def single_line_manual_with_z(self, slopey, slopez, intercepty = 0.0, interceptz = 0.0):
# no container needed
vec = euclid.Vector3(1.0, slopey, slopez)
pos = euclid.Point3(0.0, intercepty, interceptz) # fix at x=0 plane -> foil plane
return euclid.Line3(pos,vec)
def single_line_manual(self, slope, intercept = 0.0):
# no container needed
vec = euclid.Vector3(1.0, slope,0.0)
pos = euclid.Point3(0.0, intercept, 0.0) # fix at x=0 plane -> foil plane
return euclid.Line3(pos,vec)
euclid.Vector2(0.0, 1.0))
breakpoint = original.intersect(layerline)
bpoints.append((breakpoint.x, breakpoint.y))
blayer.append(bl)
c, r, i = remove_hits(bl + 1, 9, cells, radii,
info) # return numpy arrays
cluster[1] = (c, r, i)
# next line continuing from breakpoint
scat_angle = random.gauss(0.0, scatter_angle * math.pi /
180.0) # random scattering angle
newangle = angle + scat_angle # altering original slope angle with new angle
sl = math.tan(newangle)
nextdummy = euclid.Line3(
euclid.Point3(breakpoint.x, breakpoint.y, 5.0),
euclid.Vector3(1.0, sl, 0.0))
caloinfo = dcalo.calohits(nextdummy, lrtracker)
while len(caloinfo) < 1: # no calo was hit, try again
scat_angle = random.gauss(0.0, scatter_angle * math.pi /
180.0) # random scattering angle
newangle = angle + scat_angle # altering original slope angle with new angle
sl = math.tan(newangle)
nextdummy = euclid.Line3(
euclid.Point3(breakpoint.x, breakpoint.y, 5.0),
euclid.Vector3(1.0, sl, 0.0))
caloinfo = dcalo.calohits(nextdummy, lrtracker)
bangles.append(scat_angle)
lines.append(nextdummy)
ncells, nradii = wgr.hits(nextdummy,
lrtracker) # left/right tracker half