[mmhomothin] [Up] [mmintershow] Intervals (hit-or-miss templates)

mminterot
Rotate an interval

Synopsis

Irot = mminterot( Iab, theta = 45, DIRECTION = "CLOCKWISE" )

Implemented in Python.

Input

Iab Interval

theta

Double

Degrees of rotation. Available values are multiple of 45 degrees.

Default: 45

DIRECTION

String

'CLOCKWISE' or ' ANTI-CLOCKWISE'.

Default: "CLOCKWISE"

Output

Irot

Interval

Description

mminterot rotates the interval Iab by an angle theta.

Examples

>>> b1 = mmendpoints()

>>> b2 = mminterot(b1)

>>> print mmintershow(b1)

. . . 
0 1 0 
0 0 0

>>> print mmintershow(b2)

0 . . 
0 1 . 
0 0 0

Equation

Limitations

The rotation angles allowed are multiples of 45 degrees.

Source Code
        def mminterot(Iab, theta=45, DIRECTION="CLOCKWISE"):
    from string import upper
    DIRECTION = upper(DIRECTION)
    A,Bc = Iab
    if DIRECTION != 'CLOCKWISE':
        theta = 360 - theta
    Irot = mmse2hmt(mmserot(A, theta),
                    mmserot(Bc,theta))
    return Irot
    
      

mmfreedom	Control automatic data type conversion.
mmintershow	Visualize an interval.
mmserot	Rotate a structuring element.

[`mmhomothin`] [Up] [`mmintershow`]
Copyright (c) 2003, Roberto A. Lotufo, UNICAMP-University of Campinas; Rubens C. Machado, CenPRA-Renato Archer Research Center.

mminterot Rotate an interval