Shape distortions of the triangular faces and subfaces

This function will return a value that is proportional to the irregularity of a triangonal face or subface. The ratio of the lengths of the shortest and the longest edges.

Usage

trishape(gridObj)

# S4 method for class 'trigrid'
trishape(gridObj)

# S4 method for class 'hexagrid'
trishape(gridObj)

Arguments

gridObj

(trigrid, hexagrid) Object.

Value

A named numeric vector, one value for every face of the grid.

Details

The value is exactly 1 for an equilateral triangle, and becomes 0 as one of the edges approach 0. The values for hexagrid objects are face-specific means of subface values.

Examples

g <- trigrid(3)
shape <- trishape(g)