how to plot a map

Hi,

i need to know how i can plot this map ?

[Dyuman Joshi]

Please attach the data you are working with.

[ahmad Saad]

@Dyuman Joshi

Hi

i need to just draw it irrespect to the sites of stations..

you can put any site just for example

thanks

[Dyuman Joshi]

As you are working with R2018a, your only option is geobubble.

However, you can't change the markers, thus you are stuck with bubbles.

[ahmad Saad]

@Dyuman Joshi

Hi again

no problem with bubbles.

i need the map to not to be in grey color

i need it to e white

[Dyuman Joshi]

The water bodies will be colored gray/grey, you can not change that.

%% Example
tsunamis = readtable('tsunamis.xlsx');
geobubble(tsunamis.Latitude,tsunamis.Longitude,tsunamis.MaxHeight)

[ahmad Saad]

@Dyuman Joshi

i mean the background to be white not grey

[Dyuman Joshi]

Yes, that's what I am saying.

The countries will be shown as white, but the oceans, seas and any water bodies will be gray in color. You can not change that.

[ahmad Saad]

@Dyuman Joshi

thanks a lot

Answer 1

[Cris LaPierre]

You could use shapefiles (see this answer: https://www.mathworks.com/matlabcentral/answers/361871-plot-india-map-at-the-background), or the built in coastlines.mat (see here: https://www.mathworks.com/help/map/map-limit-properties.html)

load coastlines.mat
axesm('mercator','MapLatLimit',[5 35],'MapLonLimit',[60 100],'grid','on',...
    'MLineLocation',10,'PLineLocation',5,'MeridianLabel','on','ParallelLabel','on',...
    'LabelFormat','none','MLabelParallel',0)

plotm(coastlat,coastlon)
plotm(17.842,73.089,'r*')
plotm(9.177,77.852,'b*')

xlabel('LONGITUDE(Deg. East)')
ylabel('LATITUDE (Deg. North)')

[ahmad Saad]

@Dyuman Joshi

where are the lat and long scales ?

[Cris LaPierre]

Updated.

You can control the appearance of the map via axesm-based map properties. Enter these as Name-Value pairs as input arguments to axesm.

[ahmad Saad]

@Cris LaPierre

thanks for response

but is it possible to improve theshape and the appearance of the map.

(adjust the location of scales to be outside the frame)

[Cris LaPierre]

There are probably better ways to do this, but here's what worked for me

load coastlines.mat
ax = axesm('mercator','MapLatLimit',[5 35],'MapLonLimit',[60 100],'grid','on',...
    'MLineLocation',10,'PLineLocation',5,'MeridianLabel','on','ParallelLabel','on',...
    'LabelFormat','none','MLabelParallel',0,'Frame','on');

plotm(coastlat,coastlon)
plotm(17.842,73.089,'r*')
plotm(9.177,77.852,'b*')

% hide lines
box off
color = get(gcf,'Color');
set(ax,'XColor',color,'YColor',color)

% add labels
xlabel(ax,'LONGITUDE(Deg. East)','Color','k')
ylabel(ax,'LATITUDE (Deg. North)','Color','k')
ax.YLabel.Position(1) = ax.YLabel.Position(1) - 0.05;

[Dyuman Joshi]

Just a note, axesm and plotm requires Mapping Toolbox.

[ahmad Saad]

@Cris LaPierre

Thanks, it is much better.