How to covert a geoplot into an mage file in app designer.

Question

Vishal Tripathi 2021-3-7

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此问题的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/765136-how-to-covert-a-geoplot-into-an-mage-file-in-app-designer

评论： Vishal Tripathi 2021-3-10

I'm designing a application for my project. I have used following code to geoplot a datafile given below. I just want to take screenshot or export the geoplot into an image file.

           latitude = data.Var9;
            longitude = data.Var10; 
            gx = geoaxes(app.GEOGRAPHICALMAPTab); %GEOGRAPHICALMAPTab is a tab used as a geoplot container(where Geoplot is shown)
            geoplot(gx,latitude,longitude,'LineWidth',2,'Color','green');
            text(gx,latitude(1,1),longitude(1,1),'START',"FontName",'Palatino','FontSize',18)
            text(gx,latitude(end,1),longitude(end,1),'END','FontName','Palatino','FontSize',18)
            geobasemap streets
            

I have already used functions like getframe,copyUIAxes etc but none is working. Can anyone please help me ??

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Vishal Tripathi 2021-3-10

gx and mentioned before is a handle.

gx = geoaxes(app.GEOGRAPHICALMAPTab);

I looked into the documents of the copyobj and once i used the previous code, i was getting not enough input error but I figured aout the correct code later

copyobj(gx,app.GEOGRAPHICALMAPTab) \\ by adding the parent name.

Adam Danz 2021-3-10

Ah, ok, gx is a GeographicAxes handle, I see that now.

Looks like you hit the target! You were missing the parent input. However, this doesn't address your original question on how to save an image of the figure. Are you still stuck on that? Matlab recently released a few functions that do just that but other methods are needed in older releases.

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Answer 1

Monisha Nalluru 2021-3-10

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此回答的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/765136-how-to-covert-a-geoplot-into-an-mage-file-in-app-designer#answer_643737

在 MATLAB Online 中打开

Hi Vishal,

From my understanding you want to take the existng plot and save it as an image

This can be done by using print method of matlab which allows you to save the image in required format,

Here is an example

latSeattle = 47.62;
lonSeattle = -122.33;
latAnchorage = 61.20;
lonAnchorage = -149.9;
geoplot([latSeattle latAnchorage],[lonSeattle lonAnchorage],'g-*')
geolimits([45 62],[-149 -123])
print('geoimg','-dpng'); % save a file geoimg.png
imshow(imread("geoimg.png")) % display geoimg.png