GMT installation and use

Recently, I saw it used by everyone GMT The drawing is very beautiful , Record your study here GMT The notes （ Only record key steps ）.

One 、GMT install
Reference resources https://github.com/zhongpenggeo/GMT_demo/blob/master/GMT%E5%88%B6%E5%9B%BE%E7%BB%8F%E9%AA%8C/0-0-Windows%E4%B8%8B%E5%AE%89%E8%A3%85GMT.md
1. download ：
GMT：https://www.generic-mapping-tools.org/download/
Ghostscript：https://www.ghostscript.com/releases/gsdnld.html
2. install
Test installation ： After installation , Click on “ Start ”→“ All the procedures ”→“ The attachment ”→“ Command prompt ” Start up CMD. stay CMD Typing in the window gmt --version, If it appears GMT Version number means GMT Installation successful .

3. Use
GMT Is a pure command-line software , There is no graphical interface . All drawing operations need to be completed by executing commands in terminals and scripts .Windows The default terminal under is “ Command prompt ”, That is to say CMD Command line .
Usage method ：https://docs.gmt-china.org/latest/tutorial/get-started/windows/#gmt

• One GMT Orders are usually given by gmt + Module name + Options + Parameters constitute .
• Use a text editor to create a suffix named .sh The file of , Write... To it Bash Command and save , You get a Bash Script .
• Git Bash Derived from MinGW, It is used to develop native Window Application development environment , For WIn32 Applied GCC、GNU binutils Tools such as .
• Windows Under the Powershell It's not easy to use. , Or I don't know how to use . Since by contrast , More familiar Linux Command line , Just put Git Bash As the default terminal .

（1） Create a new one .sh file ：https://blog.csdn.net/qq_36920008/article/details/84894242

（4） Drawing knowledge

https://docs.generic-mapping-tools.org/latest/cookbook/features.html#gmt-modern-mode-hierarchical-levels

C = makecpt(cmap="red,green,blue", range="0,100,300,10000");
coast(region=(130,150,35,50), land=:gray, proj=:merc)
plot!("@tut_quakes.ngdc", incols="4,3,5,6s0.1", header=3, symbol="cc", markerline=:faint, color=C, show=true)

Reference material ：
GMT Chinese materials ：https://docs.gmt-china.org/latest/tutorial/basemap/