def optimizeAlignementOrientation(points, mtg, p_edir=None):
from mtgmanip import mtg2pgltree
import openalea.plantgl.all as pgl
from pointprocessing import np_inertia_axis
from math import pi, degrees
nodes, parents, vertex2node = mtg2pgltree(mtg)
dist = pgl.average_distance_to_shape(points, nodes, parents,
[0 for i in xrange(len(nodes))])
print dist
if p_edir is None:
p_eval, p_edir, p_center = np_inertia_axis(points)
nbtest = 72
rotangle = 2 * pi / nbtest
tangle = 0
def check_rot_angle(crotangle, dist, tangle):
print 'test rotation of', degrees(crotangle), ':',
m = pgl.Matrix3.axisRotation(p_edir[0], crotangle)
nnodes = [m * p for p in nodes]
ndist = pgl.average_distance_to_shape(points, nnodes, parents,
[0 for j in xrange(len(nodes))])
print ndist
if ndist < dist:
tangle = crotangle
dist = ndist
return dist, tangle
for i in xrange(1, nbtest):
crotangle = rotangle * i
dist, tangle = check_rot_angle(crotangle, dist, tangle)
nbtest = 10
rotangle = 2 * rotangle / nbtest
gtangle = tangle
for i in xrange(1, nbtest / 2):
crotangle = gtangle - rotangle * i
dist, tangle = check_rot_angle(crotangle, dist, tangle)
for i in xrange(1, nbtest / 2):
crotangle = gtangle + rotangle * i
dist, tangle = check_rot_angle(crotangle, dist, tangle)
if tangle != 0:
print 'select', degrees(tangle), dist
npos = dict()
m = pgl.Matrix3.axisRotation(p_edir[0], tangle)
for vid, pos in mtg.property('position').items():
npos[vid] = m * pos
mtg.property('position').update(npos)
def optimizeAlignementOrientation(points, mtg, p_edir = None):
from mtgmanip import mtg2pgltree
import openalea.plantgl.all as pgl
from pointprocessing import np_inertia_axis
from math import pi, degrees
nodes, parents, vertex2node = mtg2pgltree(mtg)
dist = pgl.average_distance_to_shape(points, nodes, parents, [0 for i in xrange(len(nodes))])
print dist
if p_edir is None:
p_eval, p_edir, p_center = np_inertia_axis(points)
nbtest = 72
rotangle = 2*pi/nbtest
tangle = 0
def check_rot_angle(crotangle, dist, tangle):
print 'test rotation of',degrees(crotangle),':',
m = pgl.Matrix3.axisRotation(p_edir[0],crotangle)
nnodes = [m*p for p in nodes]
ndist = pgl.average_distance_to_shape(points, nnodes, parents, [0 for j in xrange(len(nodes))])
print ndist
if ndist < dist:
tangle = crotangle
dist = ndist
return dist, tangle
for i in xrange(1,nbtest):
crotangle = rotangle*i
dist, tangle = check_rot_angle(crotangle, dist, tangle)
nbtest = 10
rotangle = 2 * rotangle / nbtest
gtangle = tangle
for i in xrange(1,nbtest/2):
crotangle = gtangle - rotangle*i
dist, tangle = check_rot_angle(crotangle, dist, tangle)
for i in xrange(1,nbtest/2):
crotangle = gtangle + rotangle*i
dist, tangle = check_rot_angle(crotangle, dist, tangle)
if tangle != 0:
print 'select', degrees(tangle), dist
npos = dict()
m = pgl.Matrix3.axisRotation(p_edir[0],tangle)
for vid, pos in mtg.property('position').items():
npos[vid] = m * pos
mtg.property('position').update(npos)
def optimizeAlignementPosition(points,
mtg,
distanceratio=10,
nbtests=10,
p_edir=None):
from mtgmanip import mtg2pgltree
import openalea.plantgl.all as pgl
from pointprocessing import np_inertia_axis
from math import pi, degrees
nodes, parents, vertex2node = mtg2pgltree(mtg)
dist = pgl.average_distance_to_shape(points, nodes, parents,
[0 for i in xrange(len(nodes))])
print dist
if p_edir is None:
p_eval, p_edir, p_center = np_inertia_axis(points)
mtgextent = pgl.Point3Array(mtg.property('position').values()).getExtent()
def test_shift(cshift, dist, tshift):
print 'test shift of', cshift, ':',
nnodes = [p + cshift for p in nodes]
ndist = pgl.average_distance_to_shape(points, nnodes, parents,
[0 for j in xrange(len(nodes))])
print ndist
if ndist < dist:
tshift = cshift
dist = ndist
return dist, tshift
for i in xrange(3):
tshift = None
unitshift = mtgextent[i] * distanceratio / 1000.
for t in xrange(1, nbtests):
cshift = p_edir[i] * t * unitshift
dist, tshift = test_shift(cshift, dist, tshift)
for t in xrange(1, nbtests):
cshift = -p_edir[i] * t * unitshift
dist, tshift = test_shift(cshift, dist, tshift)
if not tshift is None:
print 'select', tshift, dist
npos = dict()
for vid, pos in mtg.property('position').items():
npos[vid] = pos + tshift
mtg.property('position').update(npos)
def optimizeAlignementPosition(points, mtg, distanceratio = 10, nbtests = 10, p_edir = None):
from mtgmanip import mtg2pgltree
import openalea.plantgl.all as pgl
from pointprocessing import np_inertia_axis
from math import pi, degrees
nodes, parents, vertex2node = mtg2pgltree(mtg)
dist = pgl.average_distance_to_shape(points, nodes, parents, [0 for i in xrange(len(nodes))])
print dist
if p_edir is None:
p_eval, p_edir, p_center = np_inertia_axis(points)
mtgextent = pgl.Point3Array(mtg.property('position').values()).getExtent()
def test_shift(cshift, dist, tshift):
print 'test shift of',cshift,':',
nnodes = [p + cshift for p in nodes]
ndist = pgl.average_distance_to_shape(points, nnodes, parents, [0 for j in xrange(len(nodes))])
print ndist
if ndist < dist:
tshift = cshift
dist = ndist
return dist, tshift
for i in xrange(3):
tshift = None
unitshift = mtgextent[i] * distanceratio / 1000.
for t in xrange(1, nbtests):
cshift = p_edir[i]*t*unitshift
dist, tshift = test_shift(cshift, dist, tshift)
for t in xrange(1, nbtests):
cshift = -p_edir[i]*t*unitshift
dist, tshift = test_shift(cshift, dist, tshift)
if not tshift is None:
print 'select', tshift, dist
npos = dict()
for vid, pos in mtg.property('position').items():
npos[vid] = pos + tshift
mtg.property('position').update(npos)
def alignGlobally(points, mtg, verbose = False):
import openalea.plantgl.all as pgl
import numpy as np
from pointprocessing import np_inertia_axis
mtgpoints = pgl.Point3Array(mtg.property('position').values())
axispoints = np_inertia_axis(points, verbose=verbose)
axismtg = np_inertia_axis(mtgpoints, verbose=verbose)
p_eval, p_edir, p_center = axispoints
m_eval, m_edir, m_center = axismtg
pointextent = pgl.norm(points.getExtent())
mtgextent = pgl.norm(mtgpoints.getExtent())
scaleratio = mtgextent / pointextent
from math import log
scale = 1./pow(10, round(log(scaleratio,10)))
normalizeorientation = True
checkorientation = True
if normalizeorientation:
def normalize_frame(edir):
a, b = edir[0], edir[1]
c = np.cross(a,b)
return np.array([a, np.cross(c,a), c])
p_edir = normalize_frame(p_edir)
m_edir = normalize_frame(m_edir)
if verbose:
print 'Point center :', p_center
print 'MTG center :', m_center
print 'Point axis :',p_edir
print 'MTG axis :',m_edir
print 'Point variance :',p_eval
print 'MTG variance :',m_eval
def transform(v,t_edir):
v = (v - m_center)
nval = [ pgl.dot(v,ed) for ed in m_edir]
nv = sum([val * ed for val, ed in zip(nval, t_edir)],pgl.Vector3(0,0,0))
return (nv + p_center)
ppos = mtg.property('position').copy()
npos1 = dict([(vid, transform(pos, p_edir)) for vid, pos in ppos.items()])
#npos1 = dict([(vid, pos*scale) for vid, pos in ppos.items()])
mtg.property('position').update(npos1)
if checkorientation:
if verbose: print 'check orientation'
from mtgmanip import mtg2pgltree
nodes, parents, vertex2node = mtg2pgltree(mtg)
dist1 = pgl.average_distance_to_shape(points, nodes, parents, [0 for i in xrange(len(nodes))])
if verbose: print 'check flipped orientation'
p_edir2 = np.array([-p_edir[0], -p_edir[1], np.cross(-p_edir[0], -p_edir[1])])
npos2 = dict([(vid, transform(pos, p_edir2)) for vid, pos in ppos.items()])
mtg.property('position').update(npos2)
nodes, parents, vertex2node = mtg2pgltree(mtg)
dist2 = pgl.average_distance_to_shape(points, nodes, parents, [0 for i in xrange(len(nodes))])
if verbose: print dist1, dist2
if dist1 < dist2:
if verbose: print 'Use first orientation'
mtg.property('position').update(npos1)
else:
if verbose: print 'Use flipped orientation'
def optimizeAlignementAll(points, mtg):
from pointprocessing import np_inertia_axis
scale_and_center(points, mtg)
p_eval, p_edir, p_center = np_inertia_axis(points)
optimizeAlignementOrientation(points, mtg, p_edir)
optimizeAlignementPosition(points, mtg, p_edir=p_edir)
def alignGlobally(points, mtg, verbose=False):
import openalea.plantgl.all as pgl
import numpy as np
from pointprocessing import np_inertia_axis
mtgpoints = pgl.Point3Array(mtg.property('position').values())
axispoints = np_inertia_axis(points, verbose=verbose)
axismtg = np_inertia_axis(mtgpoints, verbose=verbose)
p_eval, p_edir, p_center = axispoints
m_eval, m_edir, m_center = axismtg
pointextent = pgl.norm(points.getExtent())
mtgextent = pgl.norm(mtgpoints.getExtent())
scaleratio = mtgextent / pointextent
from math import log
scale = 1. / pow(10, round(log(scaleratio, 10)))
normalizeorientation = True
checkorientation = True
if normalizeorientation:
def normalize_frame(edir):
a, b = edir[0], edir[1]
c = np.cross(a, b)
return np.array([a, np.cross(c, a), c])
p_edir = normalize_frame(p_edir)
m_edir = normalize_frame(m_edir)
if verbose:
print 'Point center :', p_center
print 'MTG center :', m_center
print 'Point axis :', p_edir
print 'MTG axis :', m_edir
print 'Point variance :', p_eval
print 'MTG variance :', m_eval
def transform(v, t_edir):
v = (v - m_center)
nval = [pgl.dot(v, ed) for ed in m_edir]
nv = sum([val * ed for val, ed in zip(nval, t_edir)],
pgl.Vector3(0, 0, 0))
return (nv + p_center)
ppos = mtg.property('position').copy()
npos1 = dict([(vid, transform(pos, p_edir)) for vid, pos in ppos.items()])
#npos1 = dict([(vid, pos*scale) for vid, pos in ppos.items()])
mtg.property('position').update(npos1)
if checkorientation:
if verbose: print 'check orientation'
from mtgmanip import mtg2pgltree
nodes, parents, vertex2node = mtg2pgltree(mtg)
dist1 = pgl.average_distance_to_shape(points, nodes, parents,
[0 for i in xrange(len(nodes))])
if verbose: print 'check flipped orientation'
p_edir2 = np.array(
[-p_edir[0], -p_edir[1],
np.cross(-p_edir[0], -p_edir[1])])
npos2 = dict([(vid, transform(pos, p_edir2))
for vid, pos in ppos.items()])
mtg.property('position').update(npos2)
nodes, parents, vertex2node = mtg2pgltree(mtg)
dist2 = pgl.average_distance_to_shape(points, nodes, parents,
[0 for i in xrange(len(nodes))])
if verbose: print dist1, dist2
if dist1 < dist2:
if verbose: print 'Use first orientation'
mtg.property('position').update(npos1)
else:
if verbose: print 'Use flipped orientation'
def optimizeAlignementAll(points, mtg):
from pointprocessing import np_inertia_axis
scale_and_center(points, mtg)
p_eval, p_edir, p_center = np_inertia_axis(points)
optimizeAlignementOrientation(points, mtg, p_edir)
optimizeAlignementPosition(points, mtg, p_edir=p_edir)
