waitbar -> length ot the bar figure? - matlab

This is probably something trivial, but how can I control the width of the bar figure inside the waitbar ?
My problem is, that when I use the 'Position' property, I can expand only the waitbar, but not simultaneously the bar figure inside it.
So, how is this made ?
hWaitb = waitbar(0,'Titel','Position',[x y width height]);
Than probably I would make
childrenWaitb = get(hWaitb, 'Children');
but what then?

The OP found the solution himself, see comments above:
childrenWaitb = get(hWaitb, 'Children');
set(childrenWaitb, 'Position',[xWait yWait widthBarFigure heightBarFigure]);

Related

Matlab GUI Scrollbar Available

Does anyone know if I can make a horizontal and vertical scroll bar in a MATLAB GUI (not a list box)? Depending on the resolution of a computer it may or may not show all of the figure so I need to be able to scroll (horizontally in my case). How to do that?
This will create a figure with a horizontal scrollbar:
figure
plot(1:3);
b = uicontrol('Parent',gcf,...
'Style','slider',...
'Units','Normalize',...
'Position',[0,0,1,0.05],...
'min',0, 'max',1,...
'Value', 0);
However, if I were you, I would rather make sure the figure fits the screen and allow the user to zoom. Having a graph larger than screensize deprives the user from observing the entire graph at once.
You could
a) let matlab choose default figure size of the figure. Then the user can fullscreen if desired, or b)
screensize = get(groot,'Screensize');
figure('Position',screensize)
I hope this helps.

Aligning axes of different sizes within a GUI

I have a trivial question but not able find a effective solution. I hope somebody could help me in this regard.
I currently have 4 different axes in a GUI. ax1(top left) and ax4(bottom left) should be aligned vertically and similarly ax2(top right) and ax4(bottom right) should be aligned vertically. (I have attached a sample image)
ax1 and ax2 are used to show images that are usually larger in size(~512x512) and ax3 & ax4 are used to display images of size ~43x512. Even though I created the axes with x-axis the same size when I display images they change size and not aligned anymore. No matter what images I display, I want the top and bottom images to of same x length and aligned always.
I tried to keep the XLim the same; XData the same but still doesnt work.
Any help is greatly appreciated.
Thanks, Bala
You can use the align function which is used to do just that. The calling syntax is as follows:
align(HandleList,'HorizontalAlignment','VerticalAlignment')
Therefore in you case, you could write something like this (Note that you wrote ax4 twice in your question, I guess you wish to align axes 1-3 and 2-4):
align([handles.ax1 handles.ax3],'VerticalAlignment','none', 'HorizontalAlignment','center')
and likewise for the other 2 axes:
align([handles.ax2 handles.ax4],'VerticalAlignment','none', 'HorizontalAlignment','center')

Matlab Increase thickness of lines of 3d bars

I have a 3D bar chart. Let me clarify, I do not want to edit the width of the bar graph as I have already done that. However, there are black lines that outline each bar. Is there a way to make these thicker?
Everything I have search pays reference to the width of the bars themselves, not the black lines enclosing them.
At last, I found the answer to my own question the minute after I ask it.
Simply:
set(j,'LineWidth',1.5)
EDIT: As Luis mentioned, j is the handle such that j = bar3(...)
Sorry should have included that.

MATLAB Bar Graph Plotting Over Axes

I have a troubling problem that I've been trying to figure out for quite a while now and I just have no clue why it's happening. I have a self-coded GUI and I have a panel on the main GUI figure. On this panel I have an axes and whenever I plot a bar graph on that axes and try to edit its view with either yLim() or axis(), the axes will be resized to the dimensions I want, but the bar graph will not chop off at the edge of the axes and it will continue to run off the page. After playing around with it for a while in debug mode, I have found out that if I change the axes' parent from the panel it's on to the main figure, the bar graph will properly display only what is inside the axes borders like I want it to. I don't want to use changing the axes' parent as a permanent solution since I have several different panels I want to go between and having an axes on the main figure instead of the panel wouldn't work but I'd like to know if anybody knows why this is happening and how I can fix it.
For example, this code produces the problem I'm experiencing:
mainFig = figure('Units','characters',...
'Position',[40 5 200 50],...
'Color',[100/255 145/255 209/255]);
axesPanel = uipanel('bordertype','etchedin',...
'Parent',mainFig,...
'Title','Axes Panel');
mainAxes = axes('parent',axesPanel,...
'Units','characters');
bar(mainAxes,1:10,1:10)
ylim(mainAxes,[6 10])
And if the axes' parent is changed to be the figure, the problem doesn't exist. This line of code does that:
set(mainAxes,'parent',mainFig)
Thanks for any help or information as to why this is happening!
Just in case anybody else was having this same problem, I contacted MATLAB Technical Support and I was told that this was a bug on MATLAB's end that is being fixed in the next release(R2014b). They said that if you are having the problem I described in my original question, that in order to make the bar graph appear within the axes' boundaries at the moment, that you can edit the figure's 'Renderer' property and set it to either 'opengl' or 'zbuffer'. I have tested this and both options work so hopefully that helps :)
And just for extra clarification if it is needed, all I needed to change from my original code was:
mainFig = figure('Units','characters',...
'Position',[40 5 200 50],...
'Color',[100/255 145/255 209/255]);
To this:
mainFig = figure('Units','characters',...
'Renderer','opengl',...
'Position',[40 5 200 50],...
'Color',[100/255 145/255 209/255]);
And now the bar graph behaves as it should.

Stair plot to vertical bar plot in Matlab

I want to create a vertical bar plot. This is my code:
bar (x, sensiv);
title ('Promedio X')
xlabel('Nm')
ylabel('Refl.')
The problem is it looks like a stair plot. I've tried to add (x,sensiv, 'stacked') but it doesn't work. It looks grouped, as you can see in the next image:
graph http://imageshack.us/a/img689/9449/capturawv.jpg
I think it's because of x-axis but I couldn't change it. How can I do it? Does somebody knows how can I do it?
EDIT
Thanks Colin! I've tried to zoom and I understand what you mean and I've tried with different values, as slayton and you said.
I think that maybe it's the way I've code the plot, it is possible?
abc=0;
for p=(61:201)
abc(p)=out1_c;
end
for p=(151:301)
abc(p)=out2_c;
end
for p=(231:380)
abc(p)=out3_c;
end
for p=(381:596)
abc(p)=out4_c;
end
for p=(1152:1531)
abc(p)=out5_c;
end
for p=(1651:2051)
abc(p)=out7_c;
end
for p=(2052:2151)
abc(p)= 0;
end
The default value for the width of the bars in a bar plot is 0.8, so given that you're not currently specifying the width, you should have gaps in between each bar. This is going to sound really obvious, but have you tried zooming in on the bar plot that is created? For some datasets, the bar function will return a plot that looks like a stair plot, but in fact has gaps if you zoom in far enough. If this is the case, then you should be able to get the gaps you want by tinkering with the width parameter as suggested by slayton.
EDIT
Okay. First things first. If you want to post additional information, you should add it to your question, NOT post it as a new answer! You can do this by clicking the edit button just below where your question is on the page. To make things more readable, you might preface your edit with a capitalized bold-face heading "EDIT" as I have done here. If you are able, try now to move the additional information you've given back into your question, and then delete the answer.
Second, I have to be honest, the additional information you posted was somewhat confusing. However, I think I understand what you want now. You want 7 bars coming up to the heights out1_c, out2_c, ..., out7_c (variable names taken from your additional information) with a small gap between each bar, and the x-axis to reflect (approximately) the intervals 450-550, 550-650, etc.
Well, if you want 7 bars, then you want your input to only have seven elements. Set:
y = [out1_c; out2_c; out3_c; out4_c; out5_c; out6_c; out7_c];
y now gives you the heights your bars will come up to on the y-axis. To locate the bars on the x-axis, define a vector x that also has seven elements, where each element gives the midpoint of where you want the bar to be on the x-axis. For example:
x = [100; 200; 300; 400; 500; 600; 700];
Then just use bar(x, y). This should get you started.
A final point on the code you posted, you can actually completely avoid the loops: read up on vectorization. But if you are going to insist on loops, the first and most important rule is to preallocate your vectors/matrices. In your code abc starts out as a scalar (a 1 by 1 matrix), but then for every p, you are adding an element at index p. What is actually happening in the background is for every p, matlab is scrapping the current abc you have in memory, and building it again from scratch with the additional element. As you might expect, this will slow down your code by many orders of magnitude.
You can set the width of the individual bars by passing a value between 0 and 1 to bar. Passing 1 indicates that there should be no space between the bars
bar(x,y,1)
Passing anything less than 1 will reduce the bar sizes and introduce spacing between the individual bars
bar(x,y,.5)