def calculate_sphere_intersection(self, sphere_r, sphere_center):
ctr, top = self.coil_center, self.coil_top
self.sphere_intersection = tms_geom.intersect_point_with_sphere(ctr, top - ctr, sphere_r, sphere_center)
def __test_one():
import os
import vtk
from itertools import izip
test_dir = os.path.join(os.path.dirname(__file__), "data")
test_file = os.path.join(test_dir, "TMS-441.csv")
test_file = os.path.join(test_dir, "TMS-758.csv")
#test_file = os.path.join(test_dir, "TMS-310.csv")
points = tms_rt.read_csv_file(test_file)
calibs = tms_rt.extract_calibration_samples(points)
assert set(calibs.keys()) == {1, 2, 3, 4}
ref = calibs[3]
calibs_norm = dict(((k, tms_rt.normalize_point_to_ref(v, ref) ) for k, v in calibs.iteritems() ))
ren_win = vtk.vtkRenderWindow()
iren = vtk.vtkRenderWindowInteractor()
iren.SetInteractorStyle(vtk.vtkInteractorStyleTrackballCamera())
iren.SetRenderWindow(ren_win)
ren = vtk.vtkRenderer()
ren_win.AddRenderer(ren)
date = ref.date
pointer_fun = tms_rt.get_pointer_transform_function(date)
calib_points = [pointer_fun(p) for p in calibs_norm.itervalues()]
r,ctr = tms_geom.adjust_sphere(calib_points)
for p in calib_points:
__add_sphere_to_ren(p,r/20,ren)
ac = __add_sphere_to_ren(ctr,r,ren)
ac.GetProperty().SetColor(1,0,0)
#fit sphere to calibration
coil_samples = tms_rt.extract_coil_samples(points)[:50]
coil_samples_norm = tms_rt.normalize_to_ref(coil_samples, ref)
coil_function = tms_rt.get_coil_transform_function(date)
coil_pairs = [coil_function(p) for p in coil_samples_norm]
cc = (0, 1, 0)
cc2 = (0.2,0.7,0.2)
for (c, t),p in izip(coil_pairs,coil_samples_norm):
ac = __add_sphere_to_ren(c, 0.002, ren)
ac.GetProperty().SetColor(cc)
ac = __add_line_to_ren(c, np.subtract(t, c), ren)
ac.GetProperty().SetColor(cc)
#draw intersection with sphere
intersects = [tms_geom.intersect_point_with_sphere(c,np.subtract(t,c),r,ctr) for c,t in coil_pairs]
for p in intersects:
ac = __add_sphere_to_ren(p, 0.001, ren)
ac.GetProperty().SetColor(cc2)
ac.GetProperty().SetOpacity(0.5)
#find plane
vec, circle_radius = tms_geom.circle_from_points_in_sphere(intersects,r,ctr)
__add_plane_to_ren(ctr+vec,vec,r,ren)
iren.Initialize()
iren.Start()