how to change the direction of this code from right falling into left to left falling into right

Answer 1

[Naga]

Hi Lior,

To change the direction of the falling dots from left-to-right to right-to-left, the initial plot position is shifted from (10, 10) to (0, 10) to start from the left. The loop is modified to iterate from 1 to 9 instead of 9 to 1, and the y-coordinate in the plot function is adjusted to 10-y. Please find the modified code below:

plot(0, 10, 'r.', 'markersize', 40)
axis([-1, 11, -1, 11])

for y = 1:9
    plot(y,10-y, 'r.', 'markersize', 40)
    axis([-1, 11, -1, 11])
    pause(0.3)
end

[lior]

you mistunderstood, I want it to go from the top left to the right bottom

[lior]

more precisly, from (0,10) on the axis to let's say (1,0) or (1,1)

[Naga]

I realized I misunderstood your question, so I've revised my response accordingly.

Answer 2

[Voss]

figure
x = 1:10;
y = 10:-1:1;
for ii = 1:numel(x)
    plot(x(ii),y(ii),'r.','markersize',40)
    axis([-1,11,-1,11])
    pause(0.3)
end

[Voss]

Another option:

x = 1:10;
y = 10:-1:1;

figure
ax = gca();
h = line(ax,'Color','r','Marker','.','MarkerSize',40);
set(ax,'XLim',[-1 11],'YLim',[-1 11])
for ii = 1:numel(x)
    set(h,'XData',x(ii),'YData',y(ii))
    pause(0.3)
end