PointsObjectMixin

This is a mixin class that provides some methods suitable for use with objects that have a set of (x,y) coordinate pairs.

Inheritance Diagram

Inheritance diagram for class PointsObjectMixin

Methods Summary

CalcBoundingBox
Move	Move(Delta): moves the object by delta, where delta is an (dx,
SetPoints	Sets the coordinates of the points of the object to Points (NX2 array).

Class API

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class PointsObjectMixin

This is a mixin class that provides some methods suitable for use with objects that have a set of (x,y) coordinate pairs.

Methods

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CalcBoundingBox(self)

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Move(self, Delta)

Move(Delta): moves the object by delta, where delta is an (dx, dy) pair. Ideally a Numpy array of shape (2,)

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SetPoints(self, Points, copy = True)

Sets the coordinates of the points of the object to Points (NX2 array).

By default, a copy is made, if copy is set to False, a reference is used, iff Points is a NumPy array of Floats. This allows you to change some or all of the points without making any copies.

For example:

Points = Object.Points Points += (5,10) # shifts the points 5 in the x dir, and 10 in the y dir. Object.SetPoints(Points, False) # Sets the points to the same array as it was