How to highlight a moving data point

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Hans123
Hans123 2019-4-11
评论： Hans123 2019-4-17
Hi,
I have an animated plot, the dynamic graph is a mathermatical model based on the 2 points on the other static graph. The 2 points are - one that is fixed at the start of the static graph, the other is a moving point that moves as k (loop control variable) increases. I want to highlight these two points to improve my graph. Below I have pasted a still of my graph and what I am trying to achieve and my code.
Hope my question is clear, any help is really appreciated.
MATLABhelp.png
%best fit calculations
y1 = Mean(1);
x1 = Mean_step(1);
y2 = max_cap./10;
x2 = 0;
aaa = (x1*y1)+(y1)*(-x1*y1)/(y1-y2);
bbb = (x2*y2-x1*y1)/(y1-y2);
dist = 0:1/3:1600;
model = aaa./(dist + bbb);
legend('Coarse Approach','Fine Approach','Best Fit Line')
hp = plot(dist, model, 'r-', 'Linewidth', 1.5);
txt1 = ['V_{preamp} = ' num2str(aaa) ' / (Tool-Substrate Gap + (' num2str(bbb) '))'];
ht = text(580, 700, txt1, 'FontSize', 9);
for k = 2:352
y2=Mean(k);
x2=Mean(k);
aaa=(x1*y1)+(y1)*(x2*y2-x1*y1)/(y1-y2);
bbb=(x2*y2-x1*y1)/(y1-y2);
model = aaa./(dist + bbb);
hp.YData = model;
txt1 = ['V_{preamp} = ' num2str(aaa) ' / (Tool-Substrate Gap + (' num2str(bbb) '))'];
ht.String = txt1;
drawnow()
end
  2 个评论
Walter Roberson
Walter Roberson 2019-4-11
Should only the current value be displayed, or do you want to leave everything up to that point on the line drawn (tracing out the path) ?
Hans123
Hans123 2019-4-11
Just the current value highlighted.

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采纳的回答

Walter Roberson
Walter Roberson 2019-4-12
Before the loop,
h = plot(nan, nan, 'yo', 'MarkerSize', 20, 'MarkerFaceColor, 'y'); %yellow, filled, large
Inside the loop,
set(h, 'XData', x_of_position_to_highlight, 'YData', y_of_position_to_highlight);
  6 个评论
显示 4更早的评论
Walter Roberson
Walter Roberson 2019-4-17
Create an animatedline with larger LineWidth and color gray and no marker, and do that before creating the handle for the yellow marker (so that the plot for the yellow marker is on "top" of the animated line.)
Each iteration,
addpoints(animated_line_handle, x_of_position_to_highlight, y_of_position_to_highlight)
do that as well as the set() that moves the highlight marker.
Hans123
Hans123 2019-4-17
you have no idea how much I appreciate your help!!!
Thank you

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