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man/pmPalette.Rd

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+% Generated by roxygen2: do not edit by hand
+% Please edit documentation in R/palette.R
+\name{pmPalette}
+\alias{pmPalette}
+\title{Apply Color Palette to Land Use Categories}
+\usage{
+pmPalette(palette, categories = NULL, n = NULL, background = "#f8f8f8")
+}
+\arguments{
+\item{palette}{Character vector of colors, or a function that generates colors.
+Can be output from viridis::viridis(), RColorBrewer::brewer.pal(), etc.}
+
+\item{categories}{Character vector of category names to map colors to.
+Default maps to common land use types: water, park, wood, residential,
+commercial, industrial.}
+
+\item{n}{Integer. Number of colors to generate if palette is a function.
+Default is NULL (uses length of categories).}
+
+\item{background}{Character. Background/default color for unassigned categories.
+Default is "#f8f8f8".}
+}
+\value{
+A list of color mappings suitable for pmColors() or addProtomaps(colors=).
+}
+\description{
+Maps colors from a palette to land use categories, enabling use of
+viridis, RColorBrewer, and other R color palettes with Protomaps.
+}
+\examples{
+\dontrun{
+library(leaflet)
+library(protomapr)
+
+# Using viridis palette for land use
+if (requireNamespace("viridisLite", quietly = TRUE)) {
+  colors <- pmPalette(viridisLite::viridis(6))
+  leaflet() \%>\%
+    setView(lng = -122.4, lat = 37.8, zoom = 12) \%>\%
+    addProtomaps(url = protomaps_url(), colors = colors)
+}
+
+# Using RColorBrewer
+if (requireNamespace("RColorBrewer", quietly = TRUE)) {
+  colors <- pmPalette(RColorBrewer::brewer.pal(6, "Set2"))
+  leaflet() \%>\%
+    setView(lng = -122.4, lat = 37.8, zoom = 12) \%>\%
+    addProtomaps(url = protomaps_url(), colors = colors)
+}
+
+# Custom category mapping
+colors <- pmPalette(
+  c("#264653", "#2a9d8f", "#e9c46a", "#f4a261", "#e76f51"),
+  categories = c("water", "park", "sand", "buildings", "highway")
+)
+}
+
+}
+\seealso{
+\code{\link{pmPaletteStyle}}, \code{\link{pmColors}}
+}