www.gusucode.com > map 案例源码 matlab代码程序 > map/PlotRegionsOfRobinsonFrameAndGridUsingMapLimitsExample.m

    %% Plot Regions of Robinson Frame and Grid Using Map Limits
% This example shows how to plot four regions of Robinson frame and grid
% using map limits. Initially, each of the plots shows the entire world,
% |FLatLimit| is [-90 90], and |FLonLimit| is |[-180 180]| for each case.
% The frame quadrangle can encompass smaller regions, as well, in which
% case the shape is a section of a full-world outline or simply a
% quadrilateral with straight or curving sides.
%%
% Plot four quandrangles in the Robinson Projection, symmetric about prime
% meridian.

% Copyright 2015 The MathWorks, Inc.

figure('color','white')
subplot(2,2,1);
axesm('MapProjection','robinson',...
    'Frame','on','Grid','on')
title('Lat [-90 90], Map lons [-180 180]','FontSize',10)
subplot(2,2,2);
axesm('MapProjection','robinson',...
    'MapLatLimit',[30 70],'MapLonLimit',[-90 90],...
    'Frame','on','Grid','on')
title('Lat [30 70], Lon [-90 90]','FontSize',10)
subplot(2,2,3);
axesm('MapProjection','robinson',...
    'MapLatLimit',[-90 0],'MapLonLimit',[-180 -30],....
    'Frame','on','Grid','on')
title('Lat [-90 0], Lon [-180 -30]','FontSize',10)
subplot(2,2,4);
axesm('MapProjection','robinson',...
    'MapLatLimit',[-70 -30],'MapLonLimit',[60 150],...
    'Frame','on','Grid','on')
title('Lat [-70 -30], Lon [60 150]','FontSize',10)
%%
% Plot the same regions but with frame limits altered after projecting.
% The projections are not centered on the prime meridian. Instead, the
% projections are symmetric about map limits. 
figure('color','white')
h11 = subplot(2,2,1);
axesm('MapProjection','robinson',...
    'Frame','on','Grid','on')
title('Lat [-90 90], Lon [-180 180]')
h12 = subplot(2,2,2);
axesm('MapProjection','robinson',...
    'Frame','on','Grid','on')
setm(h12,'FLatLimit',[30 70],'FLonLimit',[-90 90])
title('Lat [30 70], Lon [-90 90]')
h21 = subplot(2,2,3);
axesm('MapProjection','robinson',...
    'Frame','on','Grid','on')
setm(h21,'FLatLimit',[-90 0],'FLonLimit',[-180 -30])
title('Lat [-90 0], Lon [-180 -30]')
h22 = subplot(2,2,4);
axesm('MapProjection','robinson',...
    'Frame','on','Grid','on')
setm(h22,'FLatLimit',[-70 -30],'FLonLimit',[60 150])
title('Lat [-70 -30], Lon [60 150]')
%%
% To create a symmetric frame in the lower right subplot, reset the map
% limits instead of the frame limits, but be sure to reset the origin.
setm(h22,'MapLonLimit',[60 150],'Origin',[])
%%
% Alter the properties of the frame, which is actually a patch with face
% color set to |'none'| . Set the face color to |'cyan'| .
setm(gca,'FFaceColor','cyan')