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using 'custom' colors? #53

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jeffcsauer opened this issue Mar 29, 2019 · 1 comment

jeffcsauer commented Mar 29, 2019

Hello again!

Quick question! Is it possible to use custom color gradients?

For example, is it possible to set the lowest value as "white" and highest value as "dodgerblue4"?

I saw the post about using hex colors but did not have luck...

Member

rCarto commented Mar 29, 2019 •

edited

This is not particularly related to cartography, which uses whatever colors you give it.
Anyway, I would probably use colorRampPalette().

library(cartography)
library(sf)
#> Linking to GEOS 3.5.1, GDAL 2.2.3, PROJ 4.9.3
mtq <- st_read(system.file("gpkg/mtq.gpkg", package="cartography"), quiet = T)

cols <- colorRampPalette(colors = c("white", "dodgerblue4"))(6)

choroLayer(x = mtq, var = "MED", nclass=6, method = "quantile", col = cols)

jeffcsauer closed this as completed

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