Hello.
I am developing an app with app designer and I need to animate the plot of a satellite on a fixed orbit.
In the following, a simplified version of what I've always used:
[x, y, z] = ellipsoid(0,0,0, 6378.135, 6378.135,6356.750,1E2);
surf(x,y,z,circshift(flip(C),[0,ceil(size(C,2)/360)]), 'FaceColor', 'texturemap','EdgeColor','none');
plot3(orbit(1,:),orbit(2,:),orbit(3,:),'linewidth',2,'color', .6*ones(1,3));
position = scatter3(orbit(1,1),orbit(2,1),orbit(3,1),'filled','color', 'r');
for j = 2 : size(position,2)
position.XData = orbit(1,j);
position.YData = orbit(2,j);
position.ZData = orbit(3,j);
Lately I came across the geoglobe and geoplot3 functions and I really like the result. geoplot3(earth,latitude,longitude,altitude,'linewidth',2,'color', .6*ones(1,3));
position = geoplot3(earth,latitude(1),longitude(1),altitude(3,1),'ro');
for j = 2 : length(altitude)
position.LatitudeData = latitude(j);
position.LongitudeData = longitude(j);
position.HeightData = altitude(j);
Unfortunately I faced two major problems:
- The Marker can't be set as 'filled' and I don't really like it this way
- The pause command doesn't work properly as the time elapsed between cycles is much larger
- The view of the globe is automatically updated and when the user tries to rotate the view with the figure tools, the values of campos are reset to a reference view automatically
The second problem can be fixed by setting campos before the loop.
The third problem is related to the automatic view update of geoglobe and I did not find a solution on how to disable it.
I am confident that disabling the automatic view update would also solve the second problem.
A side problem is the flickering transition given by the loop update, but I hope I can solve this with timer.
Is there a simple solution to these three problems that you might be aware of?
Are there any alternatives to obtain animated fancy plot like the second one?
Thanks
