how to make a patch on geoplot?

Question

Sierra 2022-6-28

评论： Chunru 2022-6-28

I made a patch on plot.

i wanted to make a same patch on a geoplot. but it didn't work.

It would be good if you explain with 4 coordinates. do not mind 'z' value I will make a patch on 2d geoplot.

The coordinates is

x = [126.509 126.508 126.511 126.512]

y = [37.403 37.4063 37.4048 37.4081]

Thanks.

Answer 1

Chunru 2022-6-28

You data is not in correct order. The axis scale is also not proportional. Try geoplot if you have mapping toolbox.

x = [126.509 126.508 126.511 126.512];

y = [37.403 37.4048 37.4081 37.4063]; % The original data order is incorrect

% geoplot

figure

geoplot(y([1:end 1]), x([1:end 1]))

geobasemap streets

% normal plot

figure

plot(x([1:end 1]), y([1:end 1]))

axis equal

Sierra 2022-6-28

How can i merge all rectangular if i make several rectangular on geoplot?

Chunru 2022-6-28

Just "hold on" and plot all rectangles.

Answer 2

KSSV 2022-6-28

编辑：KSSV 2022-6-28

x = [126.509 126.508 126.511 126.512] ;
y = [37.403 37.4063 37.4048 37.4081] ;
patch(x,y,'r')

In case, you looking for:

[val,idx] = sort(x) ;

patch(x(idx),y(idx),'r')

KSSV 2022-6-28

Won't hold on and patch work?

Sierra 2022-6-28

Patch does not work well on geoplot. Thanks