get_ellipse: Calculate ellipse polygon coordinates from foci and...
In mrc-ide/PlasmoMAPI: Mapping Plasmodium Spatial Connectivity from Genetic Data
Description
Calculate ellipse polygon coordinates from foci and eccentricity.
Usage
1
get_ellipse(f1 = c(-3, -2), f2 = c(3, 2), ecc = 0.8, n = 100)
Arguments
f1
x- and y-coordinates of the first focus.
f2
x- and y-coordinates of the first focus.
ecc
eccentricity of the ellipse, defined as half the distance between
foci divided by the semi-major axis. We can say e = sqrt{1 -
b^2/a^2}, where e is the eccentricity, a is the length of the
semi-major axis, and b is the length of the semi-minor axis.
Eccentricity ranges between 0 (perfect circle) and 1 (straight line between
foci).
n
number of points in polygon.
mrc-ide/PlasmoMAPI documentation built on Oct. 1, 2020, 9:41 a.m.
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Description
Calculate ellipse polygon coordinates from foci and eccentricity.
Usage
1 | get_ellipse(f1 = c(-3, -2), f2 = c(3, 2), ecc = 0.8, n = 100)
|
Arguments
f1 |
x- and y-coordinates of the first focus. |
f2 |
x- and y-coordinates of the first focus. |
ecc |
eccentricity of the ellipse, defined as half the distance between foci divided by the semi-major axis. We can say e = sqrt{1 - b^2/a^2}, where e is the eccentricity, a is the length of the semi-major axis, and b is the length of the semi-minor axis. Eccentricity ranges between 0 (perfect circle) and 1 (straight line between foci). |
n |
number of points in polygon. |
R Package Documentation
Browse R Packages
We want your feedback!
Note that we can't provide technical support on individual packages. You should contact the package authors for that.
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