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Add method str to linesegment

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The method str returns the line segment coordinates as string.
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Pascal Lais
2020-03-09 07:49:10 +01:00
parent 6f83b57ffb
commit 4a483b939a
1 changed files with 7 additions and 4 deletions
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11
linesegment.py
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@@ -1,5 +1,5 @@
#!/usr/bin/python3 #!/usr/bin/python3
"""The linesegment module defines the class line_segment""" """The linesegment module defines the class line_segment."""
import point import point
@@ -12,14 +12,14 @@ class LineSegment:
self.set_endpoint(endpoint) self.set_endpoint(endpoint)
def set_startpoint(self, new_startpoint): def set_startpoint(self, new_startpoint):
"""Set or change the startpoint of the line segment. If not a Point object is given """Set or change the startpoint of the line segment. If not a Point object is given
the startpoint gets set to a default value of Point(0,0)""" the startpoint gets set to a default value of Point(0,0)."""
self.__startpoint = new_startpoint self.__startpoint = new_startpoint
def get_startpoint(self): def get_startpoint(self):
"""Returns the current startpoint""" """Returns the current startpoint"""
return self.__startpoint return self.__startpoint
def set_endpoint(self, new_endpoint): def set_endpoint(self, new_endpoint):
"""Set or change the endpoint of the line segment. If not a Point object is given """Set or change the endpoint of the line segment. If not a Point object is given
the endpoint gets set to a default value of Point(0,0)""" the endpoint gets set to a default value of Point(0,0)."""
self.__endpoint = new_endpoint self.__endpoint = new_endpoint
def get_endpoint(self): def get_endpoint(self):
"""Returns the current endpoint""" """Returns the current endpoint"""
@@ -29,5 +29,8 @@ class LineSegment:
diff_x = abs(self.__startpoint.get_x() - self.__endpoint.get_x()) diff_x = abs(self.__startpoint.get_x() - self.__endpoint.get_x())
diff_y = abs(self.__startpoint.get_y() - self.__endpoint.get_y()) diff_y = abs(self.__startpoint.get_y() - self.__endpoint.get_y())
return ((diff_x ** 2) + (diff_y ** 2)) ** (1/2.0) return ((diff_x ** 2) + (diff_y ** 2)) ** (1/2.0)
def str(self):
"""Return the line segment values as string."""
return self.__startpoint.str() + "-->" + self.__endpoint.str()
def draw(self): def draw(self):
"""TODO: Draw the line segment in a canvas""" """TODO: Draw the line segment in a canvas."""