在下面的示例中:如何使标题“主标题”成为图例的一部分? col和size的标题应保持不变,并用作字幕。
据我了解的文档,它应该可以设置title.snap.to.legend = TRUE
,但是不起作用。最小示例:
library(tmap)
data(World, metro)
tm_shape(World) + tm_fill()+
tm_shape(metro) +
tm_symbols(
size = "pop2020",
col = "pop2020",
title.size = "title 1",
title.col = "title 2",
legend.size.is.portrait=TRUE) +
tm_layout(legend.bg.color = "gray",
legend.frame = "black",
title="Main title",
title.snap.to.legend = TRUE)
我希望将主标题放置在图例框架内的图例元素上方。
答案 0 :(得分:0)
不知道为什么它不起作用,但是下面是一个草率的,快速的技巧,在标题前面添加了几行新的\n
,直到将其推到图例顶部为止。其他人可能会给出更好的答案。这可能是一个问题,因此请考虑打开一个here。
library(tmap)
#> Warning: package 'tmap' was built under R version 3.5.2
data(World, metro)
tm_shape(World) + tm_fill()+
tm_shape(metro) +
tm_symbols(
size = "pop2020",
col = "pop2020",
title.size = "title 1",
title.col = "title 2",
legend.size.is.portrait=TRUE) +
tm_layout(legend.bg.color = "gray",
legend.frame = "black",
title="\n\n\n Main title") # add \n to push the title down
由reprex package(v0.2.1)于2019-02-06创建
devtools::session_info()
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