matlab-figure

I need to be able to set data tips programmatically from a list of array of x axis values. For example, I create a figure and plot my data. figure;plot(t1,[filter(b,a,Gyro(:,2)),filter(b,a,Gyro(:,4))]) I have a set of timestamp values from t1 variable (time) (e.g. [0.450, 0.854, 1.2343....] ) where I want to place data tips to mark certain events in my data. Without having to place them every time manual by clicking and saving data trip... How can I pass them as array and do this programmatically through matlab script? You can add matlab datatip programatically and customize them to an extent.

I'm trying to make a contour that follows the edges of the 'pixels' in a pcolor plot in Matlab. This is probably best explained in pictures. Here is a plot of my data. There is a distinct boundary between the yellow data (data==1) and the blue data (data==0): Note that this is a pcolor plot so each 'square' is essentially a pixel. I want to return a contour that follows the faces of the yellow data pixels , not just the edge of the yellow data. So the output contour (green line) passes through the mid-points of the face (red dots) of the pixels. Note that I don't want the contour to follow the

Say that I have a matrix Z with some values, and I want to illustrate it by a plotting the values in Z by height. The first solution comes to mind is a surface, but using surf and similar functions with small matrices doesn't look good. So I thought about using something like a 3D bar plot with bar3 . But the problem is that this function always sets the color by the group and not by height, and I can't get it to do so. Here is an example: Z = peaks(5); subplot 121 surf(Z) title('Surface look bad') subplot 122 bar3(Z) title('The color is not by height') I tried to look for the color properties

I am trying to draw a bounding box around the white blob in the image below: I did like this: bw = imread('box.jpg'); bw=im2bw(bw); imshow(bw) L = bwlabel(bw); s = regionprops(L, 'Area', 'BoundingBox'); s(1); area_values = [s.Area]; idx = find((100 <= area_values) & (area_values <= 1000)); % list of all the objects %whose area is between 100 and 1000 bw2 = ismember(L, idx); %construct a binary image containing all the objects whose %area is between 100 and 1000 by passing L and idx to ismember. imshow(bw2) The output bw2, so far is: Can someone one tell me how to draw a bounding box around

I am going to draw a graph in Matlab. The graph is quite simple and I am using the plot function. Suppose the data that I want to plot is (0:1:10) . I also put markers on my graph. Then, we have a line that has markers on coordinates (0,0),(1,1),(2,2),... etc. Now, I want to remove the line between (2,2) and (3,3) without deleting the whole line. That is to say, my purpose is to get rid of a particular segment of the line without loosing the entire line or any marker points. How can I do that? Try the following: y = [0.2751 0.2494 0.1480 0.2419 0.2385 0.1295 0.2346 0.1661 0.1111]; x = 1:numel