how to export tm object without chart borders

Question

I am trying to plot a map without the 'box border' around it.

Does anybody know how to work around the tmap package to not print the 'outer box border'? - not to be confused with tm_borders as it is a segment plotting the border of the polygons in the map.

Here's my example code:

tm_obj <- tm_shape(area_spdf) + 
          tm_fill(col = var, palette = "Blues", legend.show = FALSE) +
          tm_borders(col = "burlywood4", lwd = 0.25)`

save_tmap(tm = tm_obj, 
          filename = paste("plot_tm_output_", var, ".png", sep = ""))`

By any chance we can set the background to be transparent too? — gemkeeper, Dec 23 '16 at 00:38

score 11 · Accepted Answer · answered Dec 22 '16 at 23:20

11

You can use tm_layout to specify not to draw frame:

 tm_obj <- tm_shape(area_spdf) + 
           tm_fill(col = var, palette = "Blues", legend.show = FALSE) +
           tm_borders(col = "burlywood4", lwd = 0.25) +
           tm_layout(frame = FALSE)

answered Dec 22 '16 at 23:20

HubertL

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Excellent. Thank you! I am not very familiar with `tmap` – gemkeeper Dec 23 '16 at 00:10

how to export tm object without chart borders

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