我想使用packge bubble
中的函数sp
绘制数据,我想添加SpatialPolygons
图层。我可以使用spplot
轻松绘制数据,但出于某种原因,它不适用于bubble
。例如:
library(sp)
# Create SpatialPolygons
Sr1 <- Polygon(cbind(c(2,4,4,1,2),c(2,3,5,4,2)))
Srs1 <- Polygons(list(Sr1), "s1")
SpP <- SpatialPolygons(list(Srs1))
# Create SpatialPointsDataFrame
pp <- data.frame(x1=2:4,x2=2:4,att=2:4)
coordinates(pp) <- ~x1+x2
# Plot using spplot
spplot(pp, sp.layout=list("sp.polygons", SpP, fill="blue"))
# Plot using bubble
bubble(pp, sp.layout=list("sp.polygons", SpP, fill="blue"))
Some通过将SpatialPolygons
转换为SpatialLines
来完成此操作,看起来我可以通过ggplot2(请参阅post)来完成此操作,但我很困惑为什么气泡图不适用于SpatialPolygons
。任何让它运作的技巧?
答案 0 :(得分:2)
解决方法是使用自定义面板功能:
bubble(pp, "att",
panel=function(...) {
sp.polygons(SpP, fill="blue")
sp:::panel.bubble(...)
})
答案 1 :(得分:0)
我不确定为什么你的ggplot
无效,但这是library(sp)
library(ggplot2)
Sr1 <- Polygon(cbind(c(2,4,4,1,2),c(2,3,5,4,2)))
Srs1 <- Polygons(list(Sr1), "s1")
SpP <- SpatialPolygons(list(Srs1))
pp <- data.frame(x1=2:4,x2=2:4,att=2:4)
spdf <- SpatialPolygonsDataFrame(SpP, data=data.frame(row.names="s1", val=1))
sp_map <- fortify(spdf)
gg <- ggplot()
gg <- gg + geom_map(data=sp_map, map=sp_map,
aes(x=long, y=lat, map_id=id),
color="black", fill="blue")
gg <- gg + geom_point(data=pp, aes(x=x1, y=x2, size=att), color="orange")
gg <- gg + scale_size_continuous(range=c(5,10))
gg <- gg + coord_equal(ylim=c(1.5,5), xlim=c(1,4.5))
gg <- gg + labs(x=NULL, y=NULL)
gg <- gg + theme_bw()
gg <- gg + theme(panel.grid=element_blank())
gg <- gg + theme(panel.border=element_blank())
gg
的小巷:
div *{
display:inline-block;
/*
* set your child elements to a set width. If you want them to change
* size you can use % for the width and adjust this using @media
*/
margin-left:20px;//use % if you want it to scale.
}
div:first-child {
margin-left:0px;
}
<div>
<div>1</div>
<div>2</div>
<div>3</div>
<div>4</div>
<div>
(我可能已经混淆了气泡的x&amp; y)
你有(IMO)以这种方式更好地控制美学。