how to get plot data in matlab

% Create a copy of the context menu for the datatip: % Set the data-tip orientation to top-right rather than auto, % Move the datatip to the right-most data vertex point, % Get the list of all data-tips in the current figure. You see the blank space for the plot. function cp = myupdatefcn(obj,event_obj) hTarget=handle(plotHandle); did you notice that Java was not mentioned anywhere above? % Delete all data-tips QGIS expression not working in categorized symbology. % Creating Data to Animate % Time array t = linspace(0, 6, 100); % Particle coordinates x = 4*sin(t); y = 0.5*x.^2; z = x. Thanks! set(hManager.WindowListenerHandles, 'Enable', 'off'); % HG1 % Delete all data-tips >> cursorMode.CurrentDataCursor.get copyobj(allchild(old_fig),new_fig); this copies everything except for the datacursors. cursorMode.CurrentDataCursor.FontName ='Courier New'; % Note: the following code was adapted from %matlabroot%\toolbox\matlab\graphics\datacursormode.m cursormodeMagnifiedFig = datacursormode(h_magnifiedFig); %set(get(hDatatip,'TextBoxHandle'), 'Visible', 'off'); set(cursorMode, 'DisplayStyle', 'window'); WebSo I'm trying to do some lap simulation work and I want to isolate the braking zones (negative slope) from a velocity vs. time data plot. Im running R2011b & interested in being able to provide links with matlab: href to trigger some activity. % Delete all data-tips Concentration bounds for martingales with adaptive Gaussian steps. Find the treasures in MATLAB Central and discover how the community can help you! Michael. SnapToDataVertex: 'on' Is there a way to do this without also pulling in my original x,y vectors, step size, etc and doing all the math myself? Lets look at another example. String: {'Date: 01/09/11' 'Value: 573.24'} set(get(hDatatip, 'DataCursor'), 'DataIndex', index, 'TargetPoint', pos); TextColor: [0 0 0] I was thinking I could get it to identify mins/maxs but I w Passer au contenu. No appropriate method, property, or field 'DataCursors' for class Any ideas what is wrong? dcm_obj = datacursormode(h); @S_H: That's a problem, then. Contact, info@UptimeAuthority.com @S_H just be to be clear, you actually have the numerical data that generated that plot? set(hDatatip,'UIContextMenu',get(cursorMode,'UIContextMenu')); Try adding a drawnow; pause(0.1); after the figure creation and before you retrieve datacursormode, maybe it will help. rev2022.12.9.43105. Penrose diagram of hypothetical astrophysical white hole, Examples of frauds discovered because someone tried to mimic a random sequence. clf I have already shown how these can be used to customize and control data-tips programmatically (rather than interactively). The variable obj is empty, while eventObj (whose class is graphics.datatipevent) has two properties, Target (a handle) and Position (a 21 matrix) neither of which points to the datacursormode object used in the example. Try using an explicit font name (e.g. How can I pass a third argument to @setDataTipTxt? % I have used programmable datatips to pull various extrema and their time hacks off a telemetry stream during V&V of flight software. This causes subsequent mouse clicks into the new (magnified) figure to be ignored, so they fail to fire the callback. Type clf and press Enter. Do you have any idea why this may be happening? You just need to create a custom UpdateFcn for the figures datacursormode: cursorMode = datacursormode(gcf); end, followed by setting any figure callbacks you want to survive while datacursor mode is enabled, @Yair, I am almost certain that I have read it in one of your answers somewhere but I have forgotten about it. h2=uimenu(hcmenu,'label','Color'); So, after all that, the solution to this problem seems to be a one-liner(!) Then combine X,Y,Z,C into a string that you will set in outputTxt. How can I get (x,y,z) data from point cloud structure data obtained from kinect sensor in MATLAB? Text function writes everytime as I zoom in. graphics.datatip hDatatip = cursorMode.createDatatip(hObj); Do you know how to add two different markers on two ends of a line? DefaultExportVarName: 'cursor_info' dcm = set(j, 'Visible', 'off'); but this doesnt work, since it would appear the property just gets reset in a later callback. Why does my stock Samsung Galaxy phone/tablet lack some features compared to other Samsung Galaxy models? Setting this property to a new location updates the position of the data tip, i.e. @bash0r this looks like a Matlab bug to me. The fread function reads a stream of data at the byte or bit level. This function creates a grid consisting of one row and three columns. @ Oli: I do not know the underlying relationship. Then, the next call to get the current data cursors does not work anymore. @Jacopo in R2019a the property is called PointDataCursors. This example shows how to extract data from a MATLAB figure. Sorry if the indenting looks poor, i already made sure that indenting wasnt the problem!! 1. To begin, the computer you are using should be turned on and logged into. From the desktop click on the windows button in the bottom left hand c Hi Yair, set(dcm_obj,'DisplayStyle','datatip', hDatatip = cursorMode.CreateDatatip(hTarget); The following line doesnt seem to work in Matlab r2011b, but removing it works just fine: set(cursorMode, 'enable','on', 'UpdateFcn',@setDataTipTxt, 'NewDataCursorOnClick',false); I used it to find and mark phase and gain margin on a Bode plot. I was wondering how to plot only a portion of the data. If you are plotting lines, you can still have the same behavior.. Connect and share knowledge within a single location that is structured and easy to search. h = get(datapointhandle, 'DataCursors'); your location, we recommend that you select: . 'matlab.graphics.shape.internal.DataCursorManager'. zoomedAxes = copyobj(figAxes(indAxes), h_magnifiedFig); Enable: 'on' hcmenu = uicontextmenu; Assign the Figure object to the variable 'fig'. Can you suggest any good way to debug the datacursormode process? He's getting the data from the graph itself. catch matlab, how to get the data point from the plot. @MU of course this is possible, but you would need to do this programmatically, by trapping the mouse-movement events in a callback. I simply did not post that part of my code because I used the code you posted, only posting my documented changes to it. Interactively create and explore visualizations for your data using the Create Plot Live Editor task. Unable to complete the action because of changes made to the page. I try to zoom in the graph and get the exact value of the plot at some specific point. * http://blogs.mathworks.com/videos/2011/02/25/creating-a-custom-data-cursor/ >> cursorMode.CurrentDataCursor.get type of access mode in which the file is to be open. >> cursorMode.CurrentDataCursor 1. I suggest that you contact support@mathworks.com to report it, In R2014b, MATLAB has a new graphic handle system, so the image is visualized in a different way, which affect the behavior of setting SnapToDataVertex off. 1. Are defenders behind an arrow slit attackable? cp = {['X: ',num2str(pos(1))], Ready to optimize your JavaScript with Rust? set(cursorMode, 'updatefcn', callbackhand); %Move the data tip to the right most data vertex point Hard to keep track of all the hacks:), @Gep I believe that you found it here: https://undocumentedmatlab.com/blog/enabling-user-callbacks-during-zoom-pan (October 2015), ah yes.. i have stolen this hack years ago:). The data here is of the form {(x_i, y_i) : i = 1,,N}, a discrete set of points. We guarantee our products, materials, and installation to be of the highest quality available anywhere, and offer warranties with all of our services. But even if I set outputTxt = {}, I still get a (default) data tip. They enable users to interactively click on a plot location and see a tool-tip that contains the clicked locations coordinates. Type p1 = plot (x, sin (x), g-) and press Enter. Ive used your datatip undocumented documentation and it helped me a lot with enhancing the information extraction from graphics. Opening graphics.datatip.updatestring.m reveals that the graphics.datatip object itself has an UpdateFcn. I want to introduce another value in the datatip that takes the value of Observation Row as displayed in the data tip and use it to display the subject number that is stored in a separate matrix that is generated before the boxplots are plotted. xData = get(hObj, 'XData'); This works great when the data tip display style is Data Tip..but the appearance of the font reverts to Helvetica when the display style is window even though cursorMode.DisplayStyle still shows Courier New. You cannot expect them to remain unchanged forever. set (cursormodeMagnifiedFig, 'NewDataCursorOnClick', ); and it is this setup that doesnt work. let the user answer questions in a dialog in MATLAB terminal window,let the user provide input on the operating system command line,let the user write input data in a graphical interface,let the user provide input data in a file. @Rick this is possibly an internal Matlab bug. You can get the data from a plot by accessing the XData and YData properties from each Line object in the axes. Help us identify new roles for community members, Proposing a Community-Specific Closure Reason for non-English content. If you did that unwise thing, then it's update(hDatatip, position); Note: If you dont like messing with the code, consider using Tim Farajians MakeDataTip utility, which basically does all this behind the scenes. Products I did not know about the other properties youve shown above very cool. Perhaps it is worth mentioning it both in the current article and in hg2-update. set(hDatatip, 'Host', hObj); (Depending on position above the patch, a different tooltip needs to be displayed) StepsKnow a few things about MATLAB. Semi-colon Operator: If a command is followed by a ';' then the output will not be printed on the screen.Open MATLAB.Create a new Function file. Set up your Function file. Set up your data. Now set up your graph. Make sure the final line in your function file is "end" and save your file. Execute the function. More items ans = Edited: MathWorks Support Team on 17 Mar 2021. I am trying to modify the data tip text for the outliers so that i can use the Observation row value that is displayed in the data tip. To subscribe to this RSS feed, copy and paste this URL into your RSS reader. updateDataCursors(cursorMode); % numerical differentiation of V: cos(2*pi/180*t), The region of negative slope lies between, You may receive emails, depending on your. For example if the data is. FontWeight: 'normal' Creative_Sushi . end. The data is set(hDatatip, 'UIContextMenu', get(cursorMode,'UIContextMenu')); ['Y: ',num2str(pos(2))]}; Call the gca command to get the current axes within that figure. Undefined function 'update' for input arguments of type 'matlab.graphics.shape.internal.PointDataTip'. You can still use getcursorinfo(dcmObject) to get a list of all data cursors. MATLAB clears any previous plot you created. Im using trisurf(tri,x,y,z,c) to plot a 3D color plot. Switching the box to white also doesnt solve the problem since its still displayed on top of the plot unless I misunderstood your advice. item7 = uimenu(h2,'Label','black','Callback',hcb_B); CreateFcn: [] set(hDatatip, 'HandleVisibility','off'); UpdateFcn: @(varargin)obj.manageDatatips(varargin{:}) Ready to optimize your JavaScript with Rust? How many transistors at minimum do you need to build a general-purpose computer? Annotation: [1x1 hg.Annotation] So I'm trying to do some lap simulation work and I want to isolate the braking zones (negative slope) from a velocity vs. time data plot. Plot data from a txt in a meshgrid. set(hDatatip,'Host',hTarget); cursorMode = datacursormode(figureHandle); I over-read the ActionPostCallback function from the zoom and pan handles, to replace the position after there where a change on the axis, but this creates an effect like the one you explained here: https://undocumentedmatlab.com/blog/setting-axes-tick-labels-format/. UIContextMenu: [1x1 uicontextmenu] Unrecognized method, property, or field 'DataCursors' for class 'matlab.graphics.shape.internal.DataCursorManager'. Other MathWorks country It's as if you lost your original data, for example by calling the clear('x') command. [] object exposed via the datacursormode function. Accelerating the pace of engineering and science. WebLearn more about plot, simulation MATLAB. Im running out of ideas and was hoping you would be able to point me in the right direction. position = [xdata(end),ydata(end),1; xdata(end),ydata(end),-1]; pos = get(eventData,'Position'); I have plot a graph in matlab. How can I do that, please? ['Y: ',num2str(pos(2))]}; %How to turn on/off this menu and keep other menus work WebThe bar example in the example below has the following command: import matplotlib.pyplot as plt import numpy as np from matplotlib import mline from matlab.defaults import Mplot3DShapes from matmath.mplot2d import mline, Mplot3d from matlib.commander import Command from matx.data import F import argparse import six def mathworks.co.uk/help/matlab/data_analysis/, en.wikipedia.org/wiki/Linear_interpolation. The data is represented as a series of data that is plotted. In that case, your curves are most likely exponential. Find the treasures in MATLAB Central and discover how the community can help you! hMode = getuimode(ancestor(hObj, 'figure'), 'Exploration.Datacursor'); function hDatatip = CustomDataTip(hObj, index, callbackhand) Learn more about plot, simulation MATLAB. Actually some of the functionalities are still correct/working, like querying for the datacursormode (or manager) and set the update string function, but other (like querying for all the datacursor objects) seems broken. Figure: [11 Figure] For that reason, I was willing to pass a third argument with the name of the source file. -first, the middle step settings flash on the screen (and without the pause command between them, they are not accepted); set(dcm_obj, 'DisplayStyle', 'datatip', 'SnapToDataVertex', 'off', 'Enable', 'on'); I just updated to R2014b and Im having problems with code that just worked yesterday before the update. 'MarkerEdgeColor', 'k', 'Marker', 'o', 'HitTest', 'off'); pos = [xData(index) yData(index)]; I was thinking I could get it to identify mins/maxs but I w Saltar al contenido. ')); The Matlab documentation says, You place data tips only by clicking data objects on graphs. WebLearn more about plot, simulation MATLAB. clear all It is much easier to use as a stand-alone utility, although it does not give you the flexiblility with all the data-tip properties as in the code above. Thanks. close all, clear all, clc; You can also select a web site from the following list: Select the China site (in Chinese or English) for best site performance. set(hDatatip,'UIContextMenu',get(cursorMode,'UIContextMenu')); I have not figured out how to do this programmatically unless I am creating the datatips programmatically and then storing them in my own cells. @ Jack_of_All_Trades: I am generating curve from the data myself. WebMATLAB is a system whose basic data element is an array that does not require any dimensioning. How do you plot graphs? Follow these simple steps: First, find the value for x on the x-axis. Next, find the y-value in this case, y=1100, so find 1100 on the y-axis. Your point should be plotted at the intersection of x=0 and y=1100. Finally, plot the point on your graph at the appropriate spot. What is plot Matlab? localUpdatePanel([],[],hTool); Currently, I have to have the user export cursor data to workspace by right clicking the datatip and doing it manually. I guess there is also a toolbox in matlab for spline fitting. Interruptible: 'on' Im using the data cursor for its point selection property but would rather the textbox not be displayed at all. hcb_r = ['set(gco,''color'',''r'')']; Do non-Segwit nodes reject Segwit transactions with invalid signature? See the top code snippet on this page for an example of setting the property, and look at the link in the previous sentence for an explanation of the actual callback function. Theme. See why all of our clients are repeat clients with our exceptional service, attention to detail, and workmanship. You can find the maximum point using the m a x and f i n d commands in Matlab: y m a x = m a x ( y); x m a x = x ( f i n d ( y == y m a x)); The other points do not exist in your data, i.e. Code is below: function output_txt = track_assess_ppi_data_tip(obj,event_obj) set(hDatatip, 'HandleVisibility', 'off'); I was able to find the handle for that panel and set its font to Courier New. axis(gca, 'tight') I think Ive found a solution. In your case, y is the width of mixing zone, and x is the time in years. Briefly: I create a single empty figure and set its WindowButtonDownFcn property to @myMagnifyFcn. Reload the page to see its updated state. Thanks! An easy way to do this is to click the figure to bring it to the foreground. * http://blogs.mathworks.com/videos/2011/10/19/tutorial-how-to-make-a-custom-data-tip-in-matlab/, (looks like this is a favorite topic for Doug ). How to fit a curve on a discrete sequence data (stem) in Matlab? The equation of the plot, like I said, is linear (. Based on Hello, The underlying grid is of shape 3 x 3. When I make a datatip it displays: X=75 Y=122) but I have to be able to select points in the sub-pixel region (e.g. I found interactive fitting tool in Matlab simple and helpful, though somewhat limited in scope: The graph above seems to be linear interpolation. @Mike you can modify the tip background via the TipHandle and/or BackgroundAlpha: hDataTip.TipHandle.FaceColor = 'm'; % or: [1,0,1] hDatatip = cursorMode.CreateDatatip(hTarget); I am still in work of adjusting this to my script, here are some adjustments that i have made so far: cursorMode = datacursormode(gcf); How can I get the program to recognize that? set(hDatatip, 'Orientation', 'top-right'); set (cursormodeMagnifiedFig, 'NewDataCursorOnClick', true, 'SnapToDataVertex', on, 'UpdateFcn' {@myToolTipFcn, arg1, arg2, arg3}); This is exactly the same code that I have working for other figures. For irregular curves, you might try spline fitting. This is always a risk when using undocumented features such as the ones explained in this blog. The data are represented as ds which are a few lines, each of which i But perhaps you have a Figure file and lost the x and y Home I have the plot working in my ordinary matlab notebook but cannot plot the transformed variables within app designer as the variables I need to plot are within the fucntions. 2) How to plot these mentioned 3 distances on the plot( by zooming into plot it will stay as legend ). h = figure(1); @Nick all you need to do is to set a custom UpdateFcn callback function for the cursorMode object (in my post it was @setDataTipTxt). @Werner you can set a property-change listener on the axiss XLim / YLim properties. On another notice, in some cases using HG2 the data-tips are created (and changed programmatically) faster. You can read the data from excel file into workspace using readtable. hlines = findall(hax,'Type','line'); update(hDatatip, position); function txt = revealData(~, event_obj) If the figure is stored in a file, such as 'example.fig', then open the figure file using 'openfig'. The fgetl and fgets functions read one line of a file at a time, where a newline character separates each line.. Estimate and plot the normalized histogram using the recommended histogram function. Learn more about meshgrid, txt, data import, 3d plots MATLAB Hi, I have a .txt file with a single column of 10000 values, and I'd like to display these values as z-values in a x-y mesh grid made by 100x100 nodes. 4. Now that you have the beginnings of a script file its time to get the data. Many times data has already been obtained from an experiment at this 'SnapToDataVertex','off','Enable','on'). ans = Enable: 'off' I dont like to use Excel By clicking Post Your Answer, you agree to our terms of service, privacy policy and cookie policy. updateDataCursors(cursorMode); set(hDatatip,'Host',hTarget); As Jack_of_All_Trades (@Jack_of_All_Trades) mentioned, there are an infinite number of continuous (and differentiable!) Edited: MathWorks Support Team on 5 Nov 2020. In particular, I would like to know if there is a way to change the default aspect of the markers for a given figure, since the workaround Ive found is to change each property (marker shape, size, edge color, face color,), then force an update (with pause), then change another property and so on. % First get the figure's data-cursor mode, activate it, and set some of its properties Menu de navigation principal. I was thinking I could get it to identify mins/maxs but I would still need to identify if the region is sloped downward. Could you give an example of what the equivalent syntax looks like in HG2 ? % Assuming the click uniquely selects a particular axes, copy it to a new figure along with its contents Any Thoughts? f = figure('WindowButtonUpFcn',@(~,~)disp('UP!! Thanks ! MATLAB provides the following functions for low-level import of text data files . Why does the distance from light to subject affect exposure (inverse square law) while from subject to lens does not? Theme. What is the proper way to create a datatip in window (instead of datatip) mode programmatically? He he he we all arrive to the same places.True Story XD. cursorMode = datacursormode(h); We can increase the efficiency in which information is shared across your organization, saving you time and money. 1) if marker one is the reference and if there is 4 markers, I need to calculate 3 distance w.r.t. From the desktop click on the windows button in the bottom left See the datacursormode documentation for details. It has solid edge color and solid face color. Im wondering if there is something scope-related that causes the above to fail. % Note: the optional @setDataTipTxt is used to customize the data-tip's content text X=75.25 Y=122.78). % adjust properties DisplayStyle: 'datatip' % Otherwise our clicks end up in the default callbacks of data-tips. Luckily, it turns out that the code to create a new data-tip is actually quite simple: first get the data-cursor mode object, then create a new data tip using the modes createDatatip() method, update some data-tip properties and finally update the data-tips position: % First plot the data WebExample #2. % create datatip Does a 120cc engine burn 120cc of fuel a minute? https://www.mathworks.com/matlabcentral/answers/330463-custom-data-tips-for-boxplots. Did the apostolic or early church fathers acknowledge Papal infallibility? Find centralized, trusted content and collaborate around the technologies you use most. hcb1 = ['set(gco,''LineStyle'',''--'')']; How do I arrange multiple quotations (each with multiple lines) vertically (with a line through the center) so that they're side-by-side? WebCode Line#1. Choose a web site to get translated content where available and see local events and Here is a brief list for reference (R2011b): I used the top portion of code on this page to make a function createDataCursor(figureHandle,plotHandle,xcoord,ycoord). cursorMode = In HG2, the data tip object has Cursor property, which itself has a Position property. Inicie sesin cuenta de MathWorks; A critical piece of transporting high bandwidth speeds across large business environments. Does anyone know how to copy the datacursors over also? DataCursorManager with properties: cursorMode = datacursormode(gcf); Under the hood, data tips use a data-cursor mode, which shares many similarities in behavior and programming code with the other plot modes (zoom, pan, data-brushing, etc.). I would like to make some of the lines on the plot unaccessible / invisible for the datacursor mode cursorMode = datacursormode(ancestor(hObj, 'figure')); [cs2,h2] = contour(x2,y2,z2); As I said, the datacursormode stuff works just fine for all the other figures I create in my parent script. hax=gca; set(cursorMode, 'DisplayStyle', 'window'); %Create a copy of teh context menu for the data tip set(get(hDatatip,'Children'), 'HitTest','off'); % Otherwise our clicks end up in the default callbacks of data-tips. hcb_b = ['set(gco,''color'',''b'')']; Ive tried the simple way of just outputting HTML from the UpdateFcn (as below) but without any success. Ive tried almost everything, including suppressing it in the updateFcn callback using: function output_txt = getRidofTextBox(obj,event_obj, datapointhandle) I am trying to make a GUI which gets the xy data from all plotted datacursors. I massively abuse of the handle.listener syntax to listen to property changes of UDD objects. Does rxns stand for reactions? I was wondering if in the datacursor mode, instead of showing the standard datatip, there is an efficient way to draw a vertical line that passes through the graph and intersects the y-value at/above/below the click position. Contact. Yair, Furthermore, I examined the contents of cursormodeMagnifiedFig in the debugger it turns up as a graphics.datacursormanager object, just like the corresponding cursormodeFig does with all my regular figures, and the contents are identical in all cases so Im confident that the arguments to UpdateFcn (= myToolTipFcn) are getting passed correctly. Thanks anyways! See here. MATLAB has various functions that can be used to display data graphically. Id like to be able to edit the datatip function to show X,Y,Z,and Heat (which is what the color represents in my case). DisplayName: '' graphics.datacursormanager datacursormode on; After the update, NewDataCursorOnClick, ViewStyle, and update pop up with errors that they dont work for data tips: The name 'NewDataCursorOnClick' is not an accessible property for an instance of class % enable datatips Where developers & technologists share private knowledge with coworkers, Reach developers & technologists worldwide. is it likely to be exponential, quadratic, etc.? The graphics.datacursormanager and the graphics.datatip objects have several public properties that we can use: >> cursorMode.get graphics.datatip: 2-by-1 Jacopo. -second the changes are only temporary and I should update them every time the markers are drawn again, including during the resize of the figure/axes, I tried to have a look with the getundoc function, but I couldnt really find anything useful. % my_figpanel = findall(gcf,'Tag','figpanel:text field'); set(hDatatip, 'Host',hTarget); So I'm trying to do some lap simulation work and I want to isolate the braking zones (negative slope) from a velocity vs. time data plot. WebIn Matlab, we use a log plot to plot the graphs in logarithmic scales in both horizontal and vertical axes. Import Text Data Files with Low-Level I/O. s2.AxesProperties (3).LegendVisible='off'. % Create a new data tip Atlanta, GA 30315. set(hlines(line),'uicontextmenu',hcmenu) set(hDataip, 'MarkerSize', 5, 'MarkerFaceColor', 'none', DisplayStyle: 'datatip' You cannot place them programmatically (by executing code to position a data cursor). The problem is that COPYOBJ either also mis-copies the hittest property of some (all?) set(cursorMode,'UpdateFcn',@myDataTip), function text_to_display = myDataTip(cursorMode,eventData) hcb_g = ['set(gco,''color'',''g'')']; The question is: How can I make a datatip display full integer value? Anyway, if an empty string is not allowed, you can always try a sting containing a single space character. Large or small, we have services that can help your organization stay connected. UpdateFcn: [] (Thus, I want the possibility to place the data cursor only on part of the lines that appear on the plot). set(dcm_obj, 'DisplayStyle', 'datatip', 'SnapToDataVertex', 'off', 'Enable', 'on'); I can only select pixel (e.g. 43. Plot data tips are a great visualization aid for Matlab plots. set(hDatatip, 'Host', hObj); position=[xcoord,ycoord]; Thats it. item5 = uimenu(h2,'Label','green','Callback',hcb_g); Should teachers encourage good students to help weaker ones? So, potentially you can have different datatips with different UpdateFcn in the same figure. T = readtable ('test.xlsx') ; You can use the table to plot what you want., Home | FontAngle: 'normal' WebLearn more about plot, simulation MATLAB. h1=uimenu(hcmenu,'label','Line Style'); Finding the distance between two plot curves with unknown equations in MATLAB, MatLab: plot solution curves inside for loop, Adding more points on axis of Matlab plot, Plotting two fitted curves in the same plot (MATLAB). With fiber, distance is not an issue. Learn more about plot, simulation MATLAB. Figure: [1x1 Figure], So not nearly as many properties are listed as above. cursorMode.removeAllDataCursors(); Thanks in advance. There is no unique "curve" which describes this data. FontName: 'Helvetica' I have a contour plot with multiple data sets plotted on it, i.e. You cannot place them programmatically (by executing code to position a data cursor). I dont know if it always said that or if thats updated language as of R2014a/b. set(cursorMode, 'enable','on', 'UpdateFcn',@setDataTipTxt); There is no ViewStyle property on the PointDataTip class. Use these coordinates (which correspond to a single point in the surface objects XData,YData,ZData properties) to extract the corresponding C value from the surface objects CData property (which has the same matrix size as ZData, thus enabling easy match). This can be done using two hidden properties of the datacursormode object: % Get the list of all data-tips in the current figure set(hDatatip,'Orientation','top-right'); After switching to MATLAB R2014b. How do I arrange multiple quotations (each with multiple lines) vertically (with a line through the center) so that they're side-by-side? Thank You @K you need to change the data-cursor objects UpdateFcn property to a custom text-update function handle, as described here. MOSFET is getting very hot at high frequency PWM. call it old_fig. Youd need to dig a bit to find out the required changes in 14b Im too busy working on other things now and do not expect to look into this in the near future. 6. Now that you have a plot of the data it is time to clean it up and make it presentable to be used in a report. Note that all of the code in this Accelerating the pace of engineering and science. When using the histogram function to plot the estimated PDF from the generated random data, use pdf option for Normalization option. >> cursorMode = datacursormode(gcf) @Mahmoud I am not sure I understand your problem exactly. For example the 'Orientation' field changes from 'top-right' to a simple 'topright' etc. SelectionHighlight: 'on' I also noticed that maybe the object itself is a bit different. set(hDatatip,'HandleVisibility','off'); A much easier way to understand the programming flow is to liberally distribute breakpoints (start in datacursormode.m) and interactively activate the functionality, then debug the code step-by-step. matlab, how to get the data point from the plot. I was able to get the contour data accessible within myupdatefnc, however I noticed that eventData.Position returns the absolute x,y position, whereas my contour z data might have a certain step size between data points such that the absolute x,y position doesnt access the array correctly. index = [25 75 100]; Why is apparent power not measured in watts? dcm_obj = datacursormode(h); I was hoping to make a simple plot of a graph as a function of the data. Thank you! To delete a specific data-tip, simply call the cursor modes removeDataCursor() method; to delete all data-tips, call its removeAllDataCursors() method: % Delete the current data-tip Well, this has never stopped us before, has it? This video shows how to use some of the Data Distribution plots such as Histograms, Pie charts and Heatmaps to display data. I was thinking I could get it to identify mins/maxs but I would still need to identify if the region is sloped downward. Thanks, Seems much more likely that its my fault and not Matlabs, but any chance this could be an HG-related bug? Type subplot (1, 3, 1) and press Enter. It seems that MathWorks makes some really good job under the hood. Im trying to copy an existing figure to a newly created figure. P.S. Learn more about appdesigner, gui, matlab, 2021b MATLAB This is what I get in out put but my code is this. txt = {['Outlier Value', num2str(pos(1))], how to tell MATLAB to rewrite a complex equation into a michaelis-menten form equation? Tag: '' item1 = uimenu(h1,'Label','dashed','Callback',hcb1); indAxes = find(figAxes == gco); Please use this form to request a quote for service for your home or business. How to count the number of symbolic variables in an equation in MATLAB? I change the font from within the data tip function: function output_txt = track_assess_ppi_data_tip(obj,event_obj) Asking for help, clarification, or responding to other answers. @Dani try setting the output_txt to (empty), and datapointhandle.CurrentDataCursors BackgroundColor and EdgeColor properties to w (or rather, to your axes BackgroundColor). @Felipe you probably forgot to declare the extra parameter(s) properly. hDatatip = createDatatip(cursorMode, hObj); We are proud to feature special A/V installation, sourcing, maintenance and service coverage for Barrow, Bartow, Cherokee, Clarke, Clayton, Coweta, Dawson, Dekalb, Forsyth, Gwinnett, Henry, Oconee, Paulding, Pickens Rockdale, and Walton counties, and the greater Metropolitan Atlanta Area. MATLAB has various functions that can be used to display data graphically. The support is looking for a workaround to achieve my task and has additionally contacted the development team. set(hDatatip, 'MarkerSize',5, 'MarkerFaceColor','none', 'MarkerEdgeColor','k', 'Marker','o', 'HitTest','off'); So I'm trying to do some lap simulation work and I want to isolate the braking zones (negative slope) from a velocity vs. time data plot. set(hDatatip, 'MarkerSize',5, 'MarkerFaceColor','none', FWIW, checked that gcf, h_magnifiedFig, and get(gca,Parent) [where gca is the axes copied into the magnified figure] are all equal to one another so the issue isnt with operating on the wrong (or hidden) figure handle. Maybe you can help. Unfortunately Ive tried the empty string and I either get the warning Error in custom datatip string function, or it defaults back to a previous allowable value. This is rather clunky. Moreover, do you know if the same handle.listener syntax still works in HG2 to listen to java events ? I would greatly appreciate any help i can get. It means that you have an error in your setDataTipTxt function. set(hDatatip, 'Position', pos); I want the datatip to tell me (X,Y) plus the name of the source file. set(gca, 'YDir', 'reverse') Then pass the axes to the findobj function to search for all lines in the axes. cursorMode.removeAllDataCursors(). Cambiar a Navegacin Principal. Should I give a brutally honest feedback on course evaluations? close all So I'm trying to do some lap simulation work and I want to isolate the braking zones (negative slope) from a velocity vs. time data plot. I had a hunch that might be an issue, but wrote gcf in my code snippet above for brevity. I believe my setDataTipTxt function is OK, I made it in the same way as it is explained in this blog: http://blogs.mathworks.com/videos/2011/10/19/tutorial-how-to-make-a-custom-data-tip-in-matlab/, I even made the same experiment (changing Y for $) and everything seems fine. % adjust properties end Understanding it by simply reading the code (under %matlabroot%\toolbox\matlab\graphics\) is actually pretty difficult. You can inspect them using my uiinspect utility. Instead, use struct(dcm).PointDataCursors. Other cables have limitations on how far they can carry bandwidth. Services | I have explained in the past how to programmatically control data-tips, but doing so relies on the figure datacursormode, which is figure-wide []. %set the data-tip orientation to top-right rather than auto set(get(hDatatip,'TextBoxHandle'), 'Visible', 'off'); end, * http://blogs.mathworks.com/videos/2012/09/19/making-a-custom-data-tip/ f=figure; Moreover, we can use its aforementioned update method to move the datatip to a different plot position (see example in the code above). Code in excel file Code in excel file How To Plot Graphs From Excel Data In Matlab What are the best way to plot graphs in Matlab? Finally, the last sub-plot is in the bottom right corner and spans the last two rows. Ive managed to solve this issue explicitly overriding the position of the ylabel to a z value lower than the datatip one, but now my ylabel will move around when I zoom or pan my axis. 28. cursorMode.DisplayStyle = 'window'; In my @myMagnifyFcn callback, the relevant part of the code to copy the clicked-upon axes and its contents to the new empty figure window is as follows: % Find all axes that are just axes (as opposed to legends, colorbars, etc.) text_to_display = {['X: ',num2str(pos(1))], I am not aware of a way to change the data-cursor defaults perhaps there is a way, I just never bothered to look for one. I was thinking I could get it to identify mins/maxs but I would still need to identify if the region is sloped downward. 1. Host: [1x1 graph2d.lineseries] update(hDatatip,position); cursorMode.CurrentDataCursor.FontName ='Courier New'; % this does the data tip But besides that it worked perfectly. % Set the data-tip orientation to top-right rather than auto HitTest: 'off' 2. Uptime Authority is proud to offer our superior customer service and skill to all of the Southeast. But, most importantly, we stand by our work! X: 3.669e+05 h = handle.listener(hDatatip, 'UpdateCursor', {@localUpdatePanel,hTool}); Ive tried several ways but always get the same message: Error in custom datatip string function. This much works just fine. set(cursorMode, 'enable','on', 'UpdateFcn',callbackhand, 'NewDataCursorOnClick',false); Thanks for contributing an answer to Stack Overflow! At any one time, only a single such mode can be active in any figure window (this is a known limitation of the design). Connect and share knowledge within a single location that is structured and easy to search. About Us For example, the current data-cursor object can be gotten via cursorMode.CurrentCursor instead of using CurrentDataCursor. For plotting the surface plot it has surf () which will generate the 3d surface. Find centralized, trusted content and collaborate around the technologies you use most. I am attempting to plot fourior transform of my data along with the variable w_c which is calculated via algorithm in attached code. set(hDatatip, 'UIContextMenu', get(cursorMode, 'UIContextMenu')); UpdateFcn: @setDataTipTxt pos = [x(index(i)) y(index(i))]; I use the data in CTF5.txt in my code, and used the code you posted to read it and assign the variables, since your code otherwise appears to be correct in calculating the frequencies, magnitude, and complex array that the frd or idfrd functions require. I have the plot working in my Thank you very much, and congratulations for this site, it is very useful! Generally, the numerical differentiation of the velocity data is obtained. set(hDatatip,'HandleVisibility','off'); Did MATLAB recently change the syntax to this? I am writing a program with 4-context menus; one of them is related to datacursor mode, I can switch between any of them except datacursormode one, I CANNOT Switch it off, So pleae how to do it in some example demo? set(hDatatip,'OrientationMode','manual'); hLine = plot(xdata, ydata); hTool = localGetObj(hMode); and some small tweaks to the code that assembles the tooltip text (which are specific to my setup, so Ill skip them here). I would like to remove the plot labels from Y axis and instead just place a P, IC, RA and O where the left labels are. I have a small problem I was hoping you can help me resolve. @xiaojidan you can simply use separate plot() commands, each one for a different marker. hTarget = handle(hLine); title ('Right Side') sgtitle ('Sitting MEP for 5 sec') There are a couple of things i would like to clean up from this graph. %Customizes the text of data tips Just initialise the hDataTip hidden and without a cursor and set a timer for making it visible (and reset the timer in a windowbuttonmotionfcn so it displays after your mouse hovers for a certain amount of seconds). yes, this post was originally posted in 2011, more than 5 years ago Matlab has changed a lot since then, including an entirely revised graphics system (HG2). How can I get the program to recognize that? I was thinking I could get it to identify mins/maxs but I w Saltar al contenido. Sorry about the double post earlier, and thanks for cleaning it up. set(0,'ShowHiddenHandles', 'off'); Great tip, thanks a lot! 1. More details available here: http://stackoverflow.com/questions/17584094/put-datatip-stack-on-top-of-axis-label-and-update-axes-label-after-a-change-was. set(cursorMode, 'UpdateFcn',@setDataTipTxt, 'SnapToDataVertex', 'off', 'NewDataCursorOnClick',false); Before writing to a file, we need to open the text file using fopen () function. How to plot like this? end. I would like to see if theres a way to use myupdatefnc to show all 3 z data values at a particular x,y position in a single data cursor. Connectez-vous votre compte MathWorks; Mon compte; How could my characters be tricked into thinking they are on Mars? To learn more, see our tips on writing great answers. hold on In this example, we can take the above transfer function for a bode plot. Good luck! Figure: [1x1 figure] However, the "data cursor" tool in matlab just doesn't give the point I want. HTML tags such as or are accepted. Share. To modify the appearance of a data-tip, we first need to get access to the hDatatip object that we created earlier, either programmatically, or interactively (or both). I have a callback function outputTxt = myCallback(obj, eventObj) to create customized datatips as described here, but I need to limit that behavior to only work for certain objects (specifically, plotted data points only, and not other lines showing mean, standard deviation, etc.). 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