Mapping Toolbox

contourm

Project a contour plot of map data

Syntax

• c = contourm(lat,lon,map)
  c = contourm(lat,lon,map,LineType)
  c = contourm(lat,lon,map,PropertyName,PropertyValue,...)
  
  c = contourm(lat,lon,map,n,...)
  c = contourm(lat,lon,map,v,...)
  [c,h] = contourm(lat,lon,map,...)
  

Description

contourm(lat,lon,map) produces a contour plot of map data projected onto the current map axes. The input latitude and longitude vectors can be the size of map (as in a general matrix map), or can specify the corresponding row and column dimensions for the map.

contourm(map,maplegend) produces a contour plot of map data in a regular matrix map.

contourm(lat,lon,map,LineSpec) uses any valid LineSpec string to draw the contour lines.

contourm(lat,lon,map,PropertyName,PropertyValue,...) uses the line properties specified to draw the contours.

contourm(lat,lon,map,n,...) draws n contour levels, where n is a scalar.

contourm(lat,lon,map,v,...) draws contours at the levels specified by the input vector v.

contourm(map,maplegend,...) takes any of the optional arguments described above.

c = contourm(...) returns a standard contour matrix, with the first row representing longitude data and the second row represents latitude data.

[c,h] = contourm(...) returns the contour matrix and the handles to the contour lines drawn.

contourm, without any inputs, will activate a GUI to project contour lines onto the current map axes.

Examples

• load topo
  axesm robinson; framem
  contourm(topo,topolegend)
  
  
  

See Also

clabelm	Label a contour plot of map data
clegendm	Display a legend for a contour plot of map data
contourc	Contour computation (see online MATLAB Function Reference)
contour3m	Project a 3-D contour plot of map data

contour3m

contourcmap