ShearedPolygon: Creates a sheared polygon from a given one

In LearnGeom: Learning Plane Geometry

Description

ShearedPolygon creates a sheared polygon from a given one

Usage

ShearedPolygon(Poly, k, direction)

Arguments

Poly	Polygon object, previously created with function CreatePolygon or CreateRegularPolygon
k	Number that represents the shear factor which is applied to the original polygon
direction	String with value "horizontal" or "vertical" which indicates the direction in which shearing is applied. Horizontal means the shearing is parallel to the X axis, while vertical means parallel to the Y axis

Value

Returns a sheared polygon, in any of the two axis, to the original one

Examples

x_min <- -5
x_max <- 5
y_min <- -5
y_max <- 5
CoordinatePlane(x_min, x_max, y_min, y_max)
Square <- CreateRegularPolygon(4, c(-2, 0), 1)
Draw(Square, "blue")
k <- 1
Square_shearX <- Translate(ShearedPolygon(Square, k, "horizontal"), c(3,0))
Draw(Square_shearX, "orange")
Square_shearY <- Translate(ShearedPolygon(Square, k, "vertical"), c(3,0))
Draw(Square_shearY, "orange")

LearnGeom documentation built on July 14, 2020, 5:06 p.m.