wx.lib.floatcanvas.FCObjects.PointsObjectMixin

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

Class Hierarchy

Inheritance diagram for class PointsObjectMixin:

Methods Summary

CalcBoundingBox	Calculate the bounding box.
Move	Moves the object by delta, where delta is a (dx, dy) pair.
SetPoints	Sets the coordinates of the points of the object to Points (NX2 array).

Class API

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class PointsObjectMixin

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)

Calculate the bounding box.

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Move(self, Delta)

Moves the object by delta, where delta is a (dx, dy) pair.

Parameters:Delta – is a (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).

Parameters:

• Points – takes a 2-tuple, or a (2,) NumPy array of point coordinates

• copy (boolean) – By default, a copy is made, if copy is set to False, a reference is used, if 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
# shifts the points 5 in the x dir, and 10 in the y dir.
Points += (5, 10)
# Sets the points to the same array as it was
Object.SetPoints(Points, False)