rotate_coord: Rotate Cartesian coordinates

In maartenpaul/SMoLR: Single Molecule Localization Microscopy visualization and analysis in R

Description

Rotate Cartesian Coordinates around a given center. Translate or flip cartesian coordinates. Stretch cartesian coordinates.

Usage

rotate_coord(x, y, angle, type = c("degrees", "radial"), method = c("transform", "polar", "polar_extended"), center = c(0, 0), translate = NULL, stretch = NULL, flip = FALSE)

Arguments

x	X coordinates
y	Y coordinates
angle	Angle the points should be rotated. Positive angles rotate clockwise, negative counterclock.
type	Define the type of angle that is given. Default is "degrees", alternative is "radial"
method	Define method to be used for rotation. Default method is "transform" uses an transformation matrix. Other method "polar" transforms coordinates to polar, "polar_extended" additionally returns distances of points from center. Results are the same for both methods.
center	Center around which coordinates should be rotated, give a vector containing and x and y coordinate.
translate	Move coordinates in x and y direction, give a vector containing x and y coordinate
stretch	Stretch or shrink coordinates around the center by a given factor (i.e. 1.5 stretch 50 procent, 0.5 shrink 50
flip	Flip coordinates around the x axis at the center

Value

Returns rotated coordinates

Author(s)

Optical Imaging Centre ErasmusMC Rotterdam

Examples

rotate_coord(c(25,50,100,150),c(150,125,50,25),angle=1.2,type="radial",method="polar_extended")

maartenpaul/SMoLR documentation built on May 21, 2019, 10:14 a.m.