我试图在A4版PDF版面上 找到一张世界地图的全页图。 当我使用以下
pdf("temp.pdf", paper="a4r")
#par(mar=rep(0,4))
map("world", mar = rep(0,4))
dev.off()
我得到
""https://i.sstatic.net/yGZL1.png" alt="此处输入图像描述"/ >
我似乎找不到图纸填满页面,有什么提示吗?
我试图在A4版PDF版面上 找到一张世界地图的全页图。 当我使用以下
pdf("temp.pdf", paper="a4r")
#par(mar=rep(0,4))
map("world", mar = rep(0,4))
dev.off()
我得到
""https://i.sstatic.net/yGZL1.png" alt="此处输入图像描述"/ >
我似乎找不到图纸填满页面,有什么提示吗?
尝试 :
pdf("temp.pdf", paper="a4r",width=0,height=0)
map("world")
dev.off()
它给我一张世界地图, 填满了左-右页, 而不是上- 下, 因为它保持了纵横比 。
您可以提取坐标 :
coord <- map.poly(database="world", regions=".", exact=FALSE,
xlim=NULL, ylim=NULL, boundary=TRUE, interior=TRUE, fill=FALSE,
as.polygon=TRUE)
然后用 coord$x
和 coord$y
绘制任何您想要的东西。
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