| spt {spt} | R Documentation |
Sierpinski Pedal Triangle
Description
To initial, plot and show a Sierpinski pedal triangles.
Usage
spt(A,B)
Arguments
A, B |
The degrees of two of the three angles of a triangle. |
Details
When the original triangle is an acute triangle, the area of the
smallest SPT/PT to be drawn is determined by (tol * S), where S is
the total area for plotting. No restriction is applied to
iter.
If the original triangle is an obtuse triangle, the largest value of
iter is 12.
tol: A stopping creiteria to draw the sub-SPT. Default value 0.0001.
Value
The dimension of the SPT will be returned if the original triangle is an acute triangle.
The viewport of showing the SPT/ST "abc" can be changed by changing the value of abc$viewport.
Author(s)
B. Wang bwang@jaguar1.usouthal.edu
References
Zhang, XM., Hitt, R. Wang, B. and Ding, J. (2008). Sierpinski Pedal Triangle. Fractals. 16(2): 141-150.
Examples
(abc = spt(50,60))
plot(abc, iter=7)
(abc = spt(50,10))
plot(abc, iter=3)
abc$viewport = c(0,-70,84,100)
plot(abc, iter=6)