src/PythonAPI/model/sketcher/arc.py

   1 """Sketch circle feature interface."""
   2
   3 from GeomDataAPI import geomDataAPI_Point2D
   4 from model.errors import WrongNumberOfArguments
   5 from model.roots import Interface
   6
   7 class Arc(Interface):
   8     """Interface to a sketch arc feature."""
   9     def __init__(self, feature, *args):
  10         Interface.__init__(self, feature)
  11         assert(self._feature.getKind() == "SketchArc")
  12
  13         self._center = geomDataAPI_Point2D(
  14             self._feature.data().attribute("ArcCenter")
  15             )
  16         self._start_point = geomDataAPI_Point2D(
  17             self._feature.data().attribute("ArcStartPoint")
  18             )
  19         self._end_point = geomDataAPI_Point2D(
  20             self._feature.data().attribute("ArcEndPoint")
  21             )
  22         if len(args) == 6:
  23             self.__createByCoordinates(*args)
  24         elif len(args) == 3:
  25             self.__createByPoints(*args)
  26         else:
  27             raise WrongNumberOfArguments(
  28                 "Arc takes 3 or 6 arguments (%s given)" % len(args)
  29                 )
  30
  31     def centerData(self):
  32         """Return the center point data."""
  33         return self._center
  34
  35     def startPointData(self):
  36         """Return the start point data."""
  37         return self._start_point
  38
  39     def endPointData(self):
  40         """Return the end point data."""
  41         return self._end_point
  42
  43     def result(self):
  44         """Return the arc circular line attribute."""
  45         return self._feature.lastResult()
  46
  47     ########
  48     #
  49     # Private methods
  50     #
  51     ########
  52
  53     def __createByCoordinates(self, center_x, center_y,
  54                               start_x, start_y,
  55                               end_x, end_y):
  56         """Create an arc by point coordinates."""
  57         self._center.setValue(center_x, center_y)
  58         self._start_point.setValue(start_x, start_y)
  59         self._end_point.setValue(end_x, end_y)
  60         self._feature.execute()
  61
  62     def __createByPoints(self, center, start, end):
  63         """Create an arc with point objects."""
  64         self._center.setValue(center.x(), center.y())
  65         self._start_point.setValue(start.x(), start.y())
  66         self._end_point.setValue(end.x(), end.y())
  67         self._feature.execute()
  68
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