GMT 入门
GMT 实例
GMT 进阶
- 基础知识
- 表数据
- 网格文件
- 颜色表 CPT
- 标准选项
- 地图投影
- -JX: Linear, logarithmic, power, and time
- -JP: Polar/Cylindrical
- -JA: Lambert azimuthal equal area
- -JB: Albers conic equal area
- -JC: Cassini cylindrical
- -JCyl_stere: Cylindrical stereographic
- -JD: Equidistant conic
- -JE: Azimuthal equidistant
- -JF: Azimuthal gnomonic
- -JG: Azimuthal orthographic/General perspective
- -JH: Hammer equal area
- -JI: Sinusoidal equal area
- -JJ: Miller cylindrical
- -JK: Eckert equal area
- -JL: Lambert conic conformal
- -JM: Mercator cylindrical
- -JN: Robinson
- -JO: Oblique Mercator
- -JPoly: (American) polyconic
- -JQ: Equidistant cylindrical
- -JR: Winkel Tripel
- -JS: General stereographic
- -JT: Transverse Mercator
- -JU: Universal Transverse Mercator (UTM)
- -JV: Van der Grinten
- -JW: Mollweide
- -JY: Cylindrical equal area
- 配置参数
- 地学数据集
- 中国地理空间数据集
- 中文支持
- API
- 模块手册
- basemap
- begin
- clear
- clip
- coast
- colorbar
- contour
- coupe
- end
- figure
- filter1d
- fitcircle
- gmt
- gmt-config
- gmtbinstats
- gmtconnect
- gmtdefaults
- gmtget
- gmtinfo
- gmtlogo
- gmtmath
- gmtselect
- gmtset
- gmtsimplify
- gmtspatial
- gmtsplit
- gmtvector
- gmtwhich
- grd2cpt
- grd2xyz
- grdblend
- grdclip
- grdcontour
- grdconvert
- grdcut
- grdedit
- grdfill
- grdimage
- grdinfo
- grdlandmask
- grdmask
- grdmath
- grdpaste
- grdproject
- grdsample
- grdtrack
- grdtrend
- grdvector
- grdview
- grdvolume
- gshhg
- histogram
- image
- img2google
- img2grd
- kml2gmt
- makecpt
- mapproject
- mask
- meca
- nearneighbor
- plot
- polar
- project
- psconvert
- rose
- sac
- sample1d
- solar
- spectrum1d
- sph2grd
- sphdistance
- sphinterpolate
- sphtriangulate
- surface
- ternary
- text
- triangiulate
- velo
- wiggle
- x2sys_binlist
- x2sys_cross
- x2sys_datalist
- x2sys_get
- x2sys_init
- x2sys_list
- x2sys_merge
- x2sys_put
- x2sys_report
- x2sys_solve
- xyz2grd
- mgd77manage
- mgd77convert
- mgd77header
- mgd77info
- mgd77list
- mgd77magref
- mgd77path
- mgd77sniffer
- mgd77track
- legend
- docs
- subplot
- inset
附录
其他
文章来源于网络收集而来,版权归原创者所有,如有侵权请及时联系!
grdcontour
- 官方文档
- 简介
根据网格文件绘制等值线
语法
gmt grdcontour grid
grdcontour 读取一个二维grid网格文件,并绘制等值线
必选选项
- grid
二维grid网格文件
- -Jprojection (more …)
设置地图投影方式
可选选项
- -A[n]|[contours][labelinfo]
-Acontours 设置标注间隔,如果在
使用网格文件AK_gulf_grav.nc,以25为间隔绘制等值线,以50为间隔标注,标注文字大小10p:
gmt grdcontour AK_gulf_grav.nc -JM16c -C25 -A50+f10p -B
只绘制50和150两条等值线,只标注100等值线:
gmt grdcontour AK_gulf_grav.nc -JM16c -C50,150 -A100,+f10p -B
以10为间隔绘制等值线,以50为间隔标注,设置图标题为”Gravity Anomalies”。将有标注的等值线设置为粗红线,将无标注的等值线设置为蓝色的细短划线:
gmt grdcontour AK_gulf_grav.nc -C10 -A50 -B -B+t"Gravity Anomalies" -Wathick,red -Wcthinnest,blue,-
将负值等值线设置为蓝色,正值等值线设置为红色,0等值线设置为黑色:
gmt begin alaska_grav4 grdcontour AK_gulf_grav.nc -C10 -A50 -B -B+t"Gravity Anomalies" -Ln -Wathick,blue -Wcthinnest,blue,- grdcontour AK_gulf_grav.nc -C10 -A50 -Lp -Wathick,red -Wcthinnest,red,- grdcontour AK_gulf_grav.nc -A0, gmt end show
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