def point_altitude(self, p, face_hint=None):
p = to_cgal_point(p)
fh, vh_or_i = self.locate_point(p, face_hint=face_hint)
if fh is None: # point p is out of the convex hull of the triangulation
return UNSPECIFIED_ALTITUDE
if (isinstance(vh_or_i, Vertex_handle)
and vh_or_i in self._input_vertices_infos):
# Point is on a vertex, which is part of an input constraint.
return self.altitude_for_input_vertex(vh_or_i)
# point is on an edge and get a finite face if needed
if isinstance(vh_or_i, int) and self.cdt.is_infinite(fh):
fh, _ = self.mirror_half_edge(fh, vh_or_i)
assert not self.cdt.is_infinite(fh)
triangle = self.triangle3d_for_face(fh)
p2 = Point_3(p.x(), p.y(), 0)
vline = Line_3(p2, Z_VECTOR)
inter = intersection(triangle, vline)
if not inter.is_Point_3():
raise InconsistentGeometricModel("Can not compute elevation",
witness_point=(p.x(), p.y()))
p3 = inter.get_Point_3()
alti = p3.z()
dist = abs((p3 - p2).squared_length() - alti**2)
assert dist <= _PROXIMITY_THRESHOLD * 1e-3 + _PROXIMITY_THRESHOLD * (
alti**2
), ("unexpected distance between point and its projection : %f (threshold = %f, altitude = %f)"
% (dist, _PROXIMITY_THRESHOLD, alti))
return alti
def getSurfaceInfoAndCentroidnormal(rootObj, SurfaceInfo, centroidNormals, rootCentroid = None, rootPolygon = None) :
for subObj in rootObj.findall('t2_node') :
pointsTest = []
zCor = float(infoMap[subObj.get('lid')])
xCor = float(subObj.get('x'))
yCor = float(subObj.get('y'))
currentPoint = Point_3(xCor, yCor, zCor)
pointsTest.append(currentPoint)
if rootObj.tag == 't2_node' :
pointsTest.append(Point_3(float(rootObj.get('x')), float(rootObj.get('y')), float(infoMap[rootObj.get('lid')])))
for childNode in subObj.findall('t2_node') :
pointsTest.append(Point_3(float(childNode.get('x')), float(childNode.get('y')), float(infoMap[childNode.get('lid')])))
if len(pointsTest) == 1 : return
if len(pointsTest) == 2 : pointsTest.append(pointsTest[0])
finalDirection = leastsq(lineFitFunc, [pointsTest[-2].x() - pointsTest[0].x(), pointsTest[-2].y() - pointsTest[0].y(), pointsTest[-2].z() - pointsTest[0].z()], (pointsTest[0], pointsTest))
finalNormal = Vector_3(finalDirection[0][0], finalDirection[0][1], finalDirection[0][2])
if math.isnan(finalNormal.x()) or math.isnan(finalNormal.y()) or math.isnan(finalNormal.z()) or (finalNormal.x() == 0 and finalNormal.y() == 0 and finalNormal.z() == 0):
finalNormal = Vector_3(pointsTest[-1].x() - pointsTest[0].x(), pointsTest[-1].y() - pointsTest[0].y(), pointsTest[-1].z() - pointsTest[0].z())
centroidNormals.append((Point_3(xCor, yCor, zCor), finalNormal))
pointList = []
for newArea in subObj.findall('t2_area') :
for newPath in newArea.findall('t2_path') :
pathCorStr = newPath.get('d').split()
allCors = [float(pathCorStr[i]) for i in range(0, len(pathCorStr)) if i % 3 != 0]
pointList = [Point_3(allCors[i], allCors[i + 1], zCor) for i in range(0, len(allCors), 2)]
# pointList = [Point_2(allCors[i], allCors[i + 1]) for i in range(0, len(allCors), 2)]
subPolygon = None
if pointList :
subPolygon = [Segment_3(pointList[i], pointList[i + 1]) for i in range(0, len(pointList) - 1)]
if rootPolygon :
# rootTree = AABB_tree_Segment_3_soup(rootPolygon)
for newPt in pointList :
newRay = Ray_3(rootCentroid, Vector_3(currentPoint, newPt))
# newIntersections = []
# rootTree.all_intersections(newRay, newIntersections)
newIntersections = [newObj.get_Point_3() for newObj in [intersection(newRay, newSegment) for newSegment in rootPolygon] if (not newObj.empty()) and newObj.is_Point_3()]
# newRay = Ray_2(Point_2(rootCentroid.x(), rootCentroid.y()), Vector_2(Point_2(currentPoint.x(), currentPoint.y()), newPt))
# newIntersections = [newObj.get_Point_2() for newObj in [intersection(newRay, newSegment) for newSegment in rootPolygon] if (not newObj.empty()) and newObj.is_Point_2()]
if len(newIntersections) == 0 :
print 'opps!'
SurfaceInfo.extend([Segment_3(newPt, newPoint) for newPoint in newIntersections])
# SurfaceInfo.extend([Segment_3(Point_3(newPt.x(), newPt.y(), zCor), Point_3(newPoint.x(), newPoint.y(), rootCentroid.z())) for newPoint in newIntersections])
# subPolygon = [Segment_2(pointList[i], pointList[i + 1]) for i in range(0, len(pointList)) if i != len(pointList) - 1]
if subPolygon is not None :
SurfaceInfo.extend(subPolygon)
# SurfaceInfo.extend([Segment_3(Point_3(newSegment.source().x(), newSegment.source().y(), zCor), Point_3(newSegment.target().x(), newSegment.target().y(), zCor)) for newSegment in subPolygon])
getSurfaceInfoAndCentroidnormal(subObj, SurfaceInfo, centroidNormals, currentPoint, subPolygon)
else :
getSurfaceInfoAndCentroidnormal(subObj, SurfaceInfo, centroidNormals, rootCentroid, rootPolygon)
def get_fucking_correspondence(tri, ray):
result = intersection(tri, ray)
if result.is_Point_3():
return result.get_Point_3()
return 0
fucking_ray.append(ray)
back_ray.append(ray_back)
count = 0
nomiss_points_ind = []
for i in range(len(fucking_ray)):
tmp = []
Points = []
for j in range(len(faces)):
a = Point_3(vertics[faces[j][0] - 1][0], vertics[faces[j][0] - 1][1],
vertics[faces[j][0] - 1][2])
b = Point_3(vertics[faces[j][1] - 1][0], vertics[faces[j][1] - 1][1],
vertics[faces[j][1] - 1][2])
c = Point_3(vertics[faces[j][2] - 1][0], vertics[faces[j][2] - 1][1],
vertics[faces[j][2] - 1][2])
tri = Triangle_3(a, b, c)
result = intersection(fucking_ray[i], tri)
if result.is_Point_3():
#print("before: ", str(vertics[faces[j][0]-1]))
#print("after: ", str(result.get_Point_3()))
inter = str(result.get_Point_3)
tmp.append(str(result.get_Point_3()))
break
try:
Points.append(tmp[len(tmp) - 1])
#print(tmp[len(tmp)-1])
nomiss_points_ind.append(i)
except:
for j in range(len(faces)):
a = Point_3(vertics[faces[j][0] - 1][0],
vertics[faces[j][0] - 1][1],
tail = [
Point_2(1, 0),
Point_2(2, 2),
Point_2(1, 2),
Point_2(2, 1),
Point_2(-1, 2),
Point_2(2, -1)
]
#point_2 untuk 2 dimensi dan segment_2 untuk 2 dimensi juga
intersectionPoint = []
for i in range(len(segments)):
for j in range(i + 1, len(segments)):
inter = intersection(
segments[i], segments[j]) #untuk cek ada intersection atau engga
if inter.is_Point_2() == True:
k = Point_2(inter.get_Point_2().x(), inter.get_Point_2().y())
#karena kalau bertemu sama-sama diujung bukan intersection
if k in head:
if head[i] == head[j] or tail[i] == head[j] or head[i] == tail[
j]:
continue
elif k in tail:
if tail[i] == tail[j] or tail[i] == head[j] or head[i] == tail[
j]:
continue
else:
print('Titik potong segment ', i + 1, 'dengan ', j + 1, ': ',
'(',
inter.get_Point_2().x(), ',',
if len(SurfaceInfo) == 0 :
print newTree.get('oid') + ' no surface!'
continue
areaMap = {};
normalMap = {}
for newNode in nodeMap :
planeNormal = findRightNormal(newNode[1], centroidNormals)
sqLen = math.sqrt(planeNormal.squared_length())
cosinXY = abs(planeNormal.z()) / sqLen
cosinXZ = abs(planeNormal.y()) / sqLen
cosinYZ = abs(planeNormal.x()) / sqLen
if cosinXY == 0 and cosinXZ == 0 and cosinYZ == 0 :
areaMap[newNode[0]] = 0
continue
planeQuery = Plane_3(newNode[1], planeNormal)
newIntersections = [newObj.get_Point_3() for newObj in [intersection(planeQuery, newSegment) for newSegment in SurfaceInfo] if (not newObj.empty()) and newObj.is_Point_3()]
if len(newIntersections) == 0 :
print 'big opps!'
allCrossSectionPoints = []
maxDist = newNode[2] * 1.2
for newPt in newIntersections :
if squared_distance(newPt, newNode[1]) > maxDist : continue
if cosinXY != 0 :
allCrossSectionPoints.append(Point_2(newPt.x(), newPt.y()))
elif cosinXZ != 0 :
allCrossSectionPoints.append(Point_2(newPt.x(), newPt.z()))
else :
allCrossSectionPoints.append(Point_2(newPt.y(), newPt.z()))
convexPoints = []
CGAL_Convex_hull_2.convex_hull_2(allCrossSectionPoints, convexPoints)
AAA = Polygon_2(convexPoints)
