GeodataLogger via Matlab with plot_google_map

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Ugue Halden
Ugue Halden 2016-3-24
评论： Ugue Halden 2016-3-25
I am working on a project which requires geodata logging via Matlab, I want it to plot big red dots when acceleration on z-axis goes above 410, and plot normal size blue dots when acc_z value is below 410. I am using plot_google_map function for plotting google maps image.
Here is my code:
lat = [48.8708 51.5188 41.9260 40.4312 52.523 38.274179];
lon = [2.4131 -0.1300 12.4951 -3.6788 13.415 27.074541];
acc = [333 327 405 ; 334 327 440 ; 327 323 412 ; 325 321 425; 325 320 430; 400 400 400];
acc_z=acc(:,end);
i=1:length(lat);
k=1:length(lon);
j=1:length(acc_z);
raw_data=[lat ;lon ;acc_z'];
raw_data_acc=raw_data(3,:);
for m=1:length(j)
if (raw_data_acc(j))>410
plot(lon,lat,'.r','MarkerSize',40)
hold on
else
plot(lon,lat,'.b','MarkerSize',20)
end
end
plot_google_map
and here is my plot:
as you can see 2nd,3rd,4th and 5th dots must be big,red. But unfortunately i am not able to plot them as i want.
Any kind of help is appreciated.

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采纳的回答

Chad Greene
Chad Greene 2016-3-25
I think your whole script can be replaced by this:
lat = [48.8708 51.5188 41.9260 40.4312 52.523 38.274179];
lon = [2.4131 -0.1300 12.4951 -3.6788 13.415 27.074541];
acc = [333 327 405 ; 334 327 440 ; 327 323 412 ; 325 321 425; 325 320 430; 400 400 400];
%
% Get indices 3rd column of acc values greater than 410:
bigthan410 = acc(:,3)>410;
%
% Plot the big ones as big red dots:
plot(lon(bigthan410),lat(bigthan410),'.r','MarkerSize',40)
hold on
%
% Plot the non-big ones as smaller blue dots:
plot(lon(~bigthan410),lat(~bigthan410),'.b','MarkerSize',20)
%
plot_google_map

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