inst/htmlwidgets/lib/d3-plugins/geom/contour/README.md

In ropensci/cartographer: Interactive Maps for Data Exploration

Contour Plots

Demo: http://bl.ocks.org/4241134

Computes a contour for a given grid function using the marching squares algorithm. Returns the contour polygon as an array of points. The grid function takes two arguments, x and y, and returns true if the specified point is inside the contour, and false for points outside the contour. The contour plugin can also take an optional starting point [x, y] on the grid.

ropensci/cartographer documentation built on May 18, 2022, 9:49 a.m.