Flipping the axis starting value of a plot in matlab

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Yanjika O
Yanjika O 2020-7-31
评论： Yanjika O 2020-8-3
Hi,
Here is the code that I wrote for plotting some points and writing it to a video. When I want to match the plot with the original video the origin value of y axis of my created plot is reversed. How can I change to y axis origin?
clear all;clc;
clear X; clear Y;
filename='test';
Ezfilename=strcat(filename,'_LocationOutput.csv');
col='I':'J';
repeats=1;
X=xlsread(Ezfilename,regexprep(Ezfilename,'.csv',''),strcat(col(1),':',col(1)));
Y=xlsread(Ezfilename,regexprep(Ezfilename,'.csv',''),strcat(col(2),':',col(2)));
for i=1:repeats
writerObj=VideoWriter(strcat('Conditioning',num2str(i),'.mp4'),'MPEG-4');
writerObj.FrameRate=30;
open(writerObj);
figure(i);
dscatter(X,Y);
colorbar;
hold on
plot1=scatter(X(1),Y(1),100,'r+');
grid on;
box on;
xlabel('[px]')
ylabel('[px]')
xlim([0 1280]);
ylim([0 720]);
title('Animal movement during conditioning');
for j=1:length(X)
plot1.XData=X(j);
plot1.YData=Y(j);
%addpoints(curve(X(j),Y(j)));
drawnow
F(j)=getframe(gcf);
writeVideo(writerObj,F(j));
end
close(writerObj);
close all
end
Please give your recommendations,
Thank you

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采纳的回答

J. Alex Lee
J. Alex Lee 2020-7-31
Does this do what you want
figure(i);
dscatter(X,Y);
colorbar;
hold on
set(gca,'YDir','reverse') % <- added this line

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