How can I have two x-labels below x axis showing both LATITUDE and LONGITUDE points?

Both lat/lon spacing are equal and forms square grid boxes. I have another variable at y-axis.

I have attached one figure for illustration...

Answer 1

[Star Strider]

I don’t have your code or figure, so this is the best I can do:

x = linspace(0,10*pi,1000);
y = sin(2*pi*sin(x));

figure(1)
plot(x,y)
grid
axis tight
ymin = min(ylim);
yrng = diff(ylim);
xt = get(gca, 'XTick');
set(gca, 'XTickLabel', []);
nrxt = size(xt,2); 
latvct = linspace(71.59, 24.06, nrxt);
lat_txt = cellstr(strsplit(num2str(latvct,'%.2f '),' '));
text([(xt(1)-xt(2))*0.5 xt], ones(1,nrxt+1)*ymin-0.05*yrng, ['Lat ' lat_txt],'HorizontalAlignment','center')
lngvct = linspace(100.71, 75.54, nrxt);
lng_txt = cellstr(strsplit(num2str(lngvct,'%.2f '),' '));
text([(xt(1)-xt(2))*0.5 xt], ones(1,nrxt+1)*ymin-0.1*yrng, ['Lon' lng_txt],'HorizontalAlignment','center')

Everything you likely need is here, but you will obviously have to experiment with it to get the result you want in your application.

It produces:

[Star Strider]

NOTE — For those who do not have the strsplit function, regexp will work:

latcell = cellstr(sprintf('%.2f ',latvct));
lat_txt = regexp(latcell, ' ', 'split');

latcell = {sprintf('%.2f ',latvct)};
lat_txt = regexp(latcell{:}(1:end-1), ' ', 'split');

These produce equivalent results. Make the same changes to the ‘lngcell’ and ‘lng_txt’ assignments.

[sachin patel]

Thank You.

This helped me.

But still i required vertical gap between "Lat" and "Lon". i.e. distance between two rows specified by "Lat" and "Lon". Please help me to solve this.

[Sreeraj T]

@sachin patel, i am not sure you got the answer for the query. Anyway, this is mine. What I found is that the spacing is controlled by

ymin-0.05*yrng

and

ymin-0.12*yrng

You may change the numbers and see it for yourself. If you increase the second no. (i.e. 0.12) substantially, then the label may 'go outside the plot'.

[Sreeraj T]

@Star Strider I am trying to understand this code. If i replace x by

log10(linspace(12.858000,690.02002,605)')

, then the texts 'Lat' and 'Lon' no longer appears. Why is that happening?