如何以最佳方式可视化来自二进制文件的地图? [英] how to visualize a map from a binary file in the best way?

问题描述

下面给出的此代码将读取二进制文件，并简单地可视化地图，如下所示这是文件的链接

this code given bellow will read a binary file and simply visualize the map as shown bellow Here is a link to the file

firsrow <- file("C:\\LaiAverage_2011_WGS84_50km.img", "rb")
row1 = readBin(firsrow, integer(), size = 2, n = 720*360, signed = F)
y <- matrix(data = row1, ncol = 360, nrow = 720)
image(t(t(y)), ylim=c(1,0)).

谁能帮助我以这种方式可视化它:

can anyone help me to visualize it like this instead:

推荐答案

您的问题非常广泛且含糊，因此我的回答将具有这些特质.另外，我将重点介绍基于ggplot2的解决方案.

Your question is quite broad and vague, therefore my answer will share those qualities. In addition, I will focus on a ggplot2 based solution.

• 要更改填充颜色，请查看 scale_fill _ * ，其中*例如连续或渐变.
• 要更改x和y轴的布局，请查看 scale_ {x，y} _ * ，例如 labels 和 breaks 参数.
• 要获得高分辨率输出，请另存为pdf或高分辨率png.我非常喜欢为此使用 ggsave .

• To change the fill color, look at scale_fill_*, where * is e.g. continuous or gradient.
• to change the layout of the x and y axis, look at scale_{x,y}_*, e.g. the labels and breaks arguments.
• To get high-res output, either save as pdf or high res png. I greatly prefer using ggsave for this.

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