suzanne.soy/FreeCAD
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

Using fuzzy comparison for half circle detection.

Browse Source
This commit is contained in:
ml 2017-03-02 19:09:14 -08:00 committed by Yorik van Havre
parent 450e3d8383
commit ad8cc9b07b
2 changed files with 15 additions and 6 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

16
src/Mod/Path/PathScripts/PathGeom.py
View File

@ -26,11 +26,14 @@ import FreeCAD
import math
import Part
import Path
import PathScripts.PathLog as PathLog
from FreeCAD import Vector
PathGeomTolerance = 0.000001
#PathLog.setLevel(PathLog.Level.INFO, PathLog.thisModule())
class Side:
"""Class to determine and define the side a Path is on, or Vectors are in relation to each other."""
Left = +1
@ -222,7 +225,8 @@ class PathGeom:
B = cls.xy(endPoint - center)
d = -B.x * A.y + B.y * A.x
if d == 0:
if cls.isRoughly(d, 0, 0.005):
PathLog.info("Half circle arc at: (%.2f, %.2f, %.2f)" % (center.x, center.y, center.z))
# we're dealing with half a circle here
angle = cls.getAngle(A) + math.pi/2
if cmd.Name in cls.CmdMoveCW:
@ -230,13 +234,15 @@ class PathGeom:
else:
C = A + B
angle = cls.getAngle(C)
PathLog.info("Arc (%8f) at: (%.2f, %.2f, %.2f) -> angle=%f" % (d, center.x, center.y, center.z, angle / math.pi))
R = A.Length
#print("arc: p1=(%.2f, %.2f) p2=(%.2f, %.2f) -> center=(%.2f, %.2f)" % (startPoint.x, startPoint.y, endPoint.x, endPoint.y, center.x, center.y))
#print("arc: A=(%.2f, %.2f) B=(%.2f, %.2f) -> d=%.2f" % (A.x, A.y, B.x, B.y, d))
#print("arc: R=%.2f angle=%.2f" % (R, angle/math.pi))
if startPoint.z == endPoint.z:
PathLog.debug("arc: p1=(%.2f, %.2f) p2=(%.2f, %.2f) -> center=(%.2f, %.2f)" % (startPoint.x, startPoint.y, endPoint.x, endPoint.y, center.x, center.y))
PathLog.debug("arc: A=(%.2f, %.2f) B=(%.2f, %.2f) -> d=%.2f" % (A.x, A.y, B.x, B.y, d))
PathLog.debug("arc: R=%.2f angle=%.2f" % (R, angle/math.pi))
if cls.isRoughly(startPoint.z, endPoint.z):
midPoint = center + Vector(math.cos(angle), math.sin(angle), 0) * R
PathLog.debug("arc: (%.2f, %.2f) -> (%.2f, %.2f) -> (%.2f, %.2f)" % (startPoint.x, startPoint.y, midPoint.x, midPoint.y, endPoint.x, endPoint.y))
return Part.Edge(Part.Arc(startPoint, midPoint, endPoint))
# It's a Helix

5
src/Mod/Path/PathScripts/PathLog.py
View File

@ -77,6 +77,10 @@ def getLevel(module = None):
return _moduleLogLevel.get(module, _defaultLogLevel)
return _defaultLogLevel
def thisModule():
"""returns the module id of the caller, can be used for setLevel, getLevel and trackModule."""
return _caller()[0]
def _caller():
"""internal function to determine the calling module."""
file, line, func, text = traceback.extract_stack(limit=3)[0]
@ -161,4 +165,3 @@ def track(*args):
return message
return None