FWIW, Im stuck using a R2006b on this project. This alleviates many unforseen issues and coordination conflicts, while providing the best product available. matlab, how to get the data point from the plot. In addition to its computing powers, MATLAB also provides its users the ability to draw and visualize the data for better understanding and drawing How long does it take to fill up the tank? The equation of the plot, like I said, is linear (. 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 This task recommends visualizations based on your workspace variables and generates MATLAB code. Try using an explicit font name (e.g. Am I on the right way? I guess there is also a toolbox in matlab for spline fitting. If you plot x versus y, the values are known and therefore the problem has not relation to the plotting. HG2), and this functionality has changed with it. Im using trisurf(tri,x,y,z,c) to plot a 3D color plot. hold off, Is it possible to add custom data tip for simulink blocks without using the description or Block Name or parameter names and values.To make my statement clear i want to add custom data tip without altering the blocks, IB-Matlab: InteractiveBrokers-Matlab connector, EODML: EODHistoricalData-Matlab connector, % First get the figure's data-cursor mode, activate it, and set some of its properties, % Note: the optional @setDataTipTxt is used to customize the data-tip's content text, % Note: the following code was adapted from %matlabroot%\toolbox\matlab\graphics\datacursormode.m. >> cursorMode.CurrentDataCursor h = handle.listener(hDatatip, 'UpdateCursor', {@localUpdatePanel,hTool}); Disconnect vertical tab connector from PCB. Choose a web site to get translated content where available and see local events and @ Jack_of_All_Trades: I am generating curve from the data myself. Interruptible: 'on' FontAngle: 'normal' You cannot place them programmatically (by executing code to position a data cursor). I think you can see that the plot looks like a curve (than a straight line), and I want to be able to find the equation of that curve. WebLearn more about plot, simulation MATLAB. Learn more about plot, simulation MATLAB. Thanks ! How can I get the program to recognize that? and some small tweaks to the code that assembles the tooltip text (which are specific to my setup, so Ill skip them here). I massively abuse of the handle.listener syntax to listen to property changes of UDD objects. Learn more about the types of MATLAB plots and the functions to generate them programmatically: https://bit.ly/3mcx75vLearn more about the Create Plot Live Task: https://bit.ly/2Uv2lcv0:00 Introduction 0:13 Histogram 1:40 Pie Chart 2:32 Heatmap 2:57 Create Plot Live Editor task --------------------------------------------------------------------------------------------------------Get a free product trial: https://goo.gl/ZHFb5uLearn more about MATLAB: https://goo.gl/8QV7ZZLearn more about Simulink: https://goo.gl/nqnbLeSee what's new in MATLAB and Simulink: https://goo.gl/pgGtod 2021 The MathWorks, Inc. MATLAB and Simulink are registered trademarks of The MathWorks, Inc. See www.mathworks.com/trademarks for a list of additional trademarks. https://fr.mathworks.com/matlabcentral/answers/1869167-how-to-identify-negative-slope-from-plot-data, https://fr.mathworks.com/matlabcentral/answers/1869167-how-to-identify-negative-slope-from-plot-data#answer_1118122, https://fr.mathworks.com/matlabcentral/answers/1869167-how-to-identify-negative-slope-from-plot-data#answer_1118167. set(cursorMode, 'DisplayStyle', 'window'); First off, Im fairly new to Matlab but I love your blog its super informative and Im looking forward to getting more practice so I can appreciate it more! Moreover, do you know if the same handle.listener syntax still works in HG2 to listen to java events ? CreateFcn: [] end, If you read the article youd see that the Matlab warning has always been there. @Mike you can modify the tip background via the TipHandle and/or BackgroundAlpha: hDataTip.TipHandle.FaceColor = 'm'; % or: [1,0,1] WebStep 1: Opening the Program. WebCode Line#1. Ive tried this function based on your code and it works except I get tooltips instead of data in the window: function hDatatip = CustomDataTip(hObj, index, callbackhand) ), % Assuming the click uniquely selects a particular axes, copy it to a new figure along with its contents, %%================================================================================, %How to turn on/off this menu and keep other menus work, % load any image data (here: stored in variable X), 'matlab.graphics.shape.internal.DataCursorManager', 'matlab.graphics.shape.internal.PointDataTip', %Create a copy of teh context menu for the data tip, %set the data-tip orientation to top-right rather than auto, %Move the data tip to the right most data vertex point. @K you need to change the data-cursor objects UpdateFcn property to a custom text-update function handle, as described here. Then, the next call to get the current data cursors does not work anymore. For example, you can get the series that were plotted in a graph: % Some figure is created and data are plotted on it figure; hold on; A DataCursorManager with properties: Figure: [11 Figure] How long does it take to fill up the tank? Yair, UpdateFcn: @(varargin)obj.manageDatatips(varargin{:}) end; (Note that legends and colorbars are handled separately later in the function, since Ive found that COPYOBJ does not seem to handle them correctly, at least on R2006b.). How can I achieve the old behavior? 28. set(cursorMode, 'UpdateFcn',{@setDataTipTxt,sourceFilename}); Id tried what you told me, but it seems there is a problem when appending sourceFilename to the output cell array of @setDataTipTxt. 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. % Creating Data to Animate % Time array t = linspace(0, 6, 100); % Particle coordinates x = 4*sin(t); y = 0.5*x.^2; z = x. I think Ive found a solution. Great article Yair, a nice insight into the workings of data tips. Sorry about the double post earlier, and thanks for cleaning it up. There are various syntaxes that are used to plot the numbers based on set(hDatatip, 'HandleVisibility','off'); cursorMode = datacursormode(figureHandle); The latter is more useful because the cursorMode UpdateFcn is called as, whereas the datatip objects UpdateFcn is called as. In that case, your curves are most likely exponential. Then pass the axes to the findobj function to search for all lines in the axes. 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 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). Is it illegal to use resources in a University lab to prove a concept could work (to ultimately use to create a startup). See an example here: https://undocumentedmatlab.com/blog/transparent-legend. You see the blank space for the plot. If you are plotting lines, you can still have the same behavior.. However, I looked through your list of the hidden properties of the event_obj but couldnt find one that referred to the argument passed to the color input. DataCursorManager with properties: position = [xdata(end),ydata(end),1; xdata(end),ydata(end),-1]; FontSize: 8 plot(z(:,30:35)); Figure: [1x1 Figure], So not nearly as many properties are listed as above. 'UpdateFcn',@FreqRespDataCursor); I then attempt to change the font to FixedWidth (so my formatted strings all line up) by using: set(dcm_obj.CurrentDataCursor,'FontName','FixedWidth'); However, when I use the data cursor, everything is as it should be except the font is still the default Helvetica. Services | [] HG handles for displaying a plot data-tip (a.k.a. Good luck! (Thus, I want the possibility to place the data cursor only on part of the lines that appear on the plot). *cos(t); Initializing Plot. @Nick all you need to do is to set a custom UpdateFcn callback function for the cursorMode object (in my post it was @setDataTipTxt). How To Plot Graph In Matlab Using Excel Data This is my first time using excel. Asking for help, clarification, or responding to other answers. end, * http://blogs.mathworks.com/videos/2012/09/19/making-a-custom-data-tip/ end hcb_r = ['set(gco,''color'',''r'')']; I was thinking I could get it to identify mins/maxs but I would still need to identify if the region is sloped downward. The current data cursor object is similar, but not identical, to the one mentioned in the post. Generally, the numerical differentiation of the velocity data is obtained. mathworks.co.uk/help/matlab/data_analysis/, en.wikipedia.org/wiki/Linear_interpolation. update(hDatatip,position); Type: 'hggroup' objects, or else they are not inherited automatically from the parent figure. cursorMode.CurrentDataCursor.FontName ='Courier New'; The data is Help us identify new roles for community members, Proposing a Community-Specific Closure Reason for non-English content. You place data tips only by clicking data objects on graphs. set(hDatatip,'Host',handle(patchHandle), 'ViewStyle','datatip','OrientationMode','manual','Orientation','top-right'); From the desktop click on the windows button in the bottom left MATLAB has various functions that can be used to display data graphically. In addition, we can also use the self-explanatory getCursorInfo(), getaxes(), makeCurrent(), movetofront() methods, and a few others. 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/. Unable to complete the action because of changes made to the page. Dear Yair An exponential function has the form: y = a*exp(b * x) . Site design / logo 2022 Stack Exchange Inc; user contributions licensed under CC BY-SA. set(cursorMode, 'enable','on', 'UpdateFcn',callbackhand, 'NewDataCursorOnClick',false); @Dani an error means that you have some Matlab error in your callback function, and then Matlab automatically defaults back to the default. Import Text Data Files with Low-Level I/O. 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. * 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 ). 1) if marker one is the reference and if there is 4 markers, I need to calculate 3 distance w.r.t. 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. Thanks! From helping large businesses network and coordinate connectivity across multiple offices, to minimizing downtime for small companies that are needing a competitive edge, we can do that! Sample of my function below: function output_args = createDataCursor(figureHandle,plotHandle,xcoord,ycoord) set (cursormodeMagnifiedFig, 'NewDataCursorOnClick', ); and it is this setup that doesnt work. SelectionHighlight: 'on' 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 This is just a basic idea for identifying the region of negative slope. set(hDatatip,'OrientationMode','manual'); I have explained in the past how to programmatically control data-tips, but doing so relies on the figure datacursormode, which is figure-wide []. Creative_Sushi . https://undocumentedmatlab.com/articles/controlling-plot-data-tips txt = {['Outlier Value', num2str(pos(1))], To subscribe to this RSS feed, copy and paste this URL into your RSS reader. Does anyone know how to copy the datacursors over also? I need to write the x axis difference between two or 4 datatips on the plot like legend. I am using Matlab R2013a and i am trying to adjust your code to my script and i am getting an error that reads: No appropriate method, property, or field CreateDatatip for class graphics.datacursormanager. You just need to create a custom UpdateFcn for the figures datacursormode: cursorMode = datacursormode(gcf); [cs1,h1] = contour(x1,y1,z1); Products Im wondering if there is something scope-related that causes the above to fail. Selected: 'off' I did not know about the other properties youve shown above very cool. Making statements based on opinion; back them up with references or personal experience. Hi, I just figured Id report back, I think I figured it out (please excuse the ugly code, Im sure this can be made much cleaner, but it seems to work). The second sub-plot is placed in the bottom left corner and covers a 2 x 2 sub-grid. hObj = plot(x,y); The data here is of the form {(x_i, y_i) : i = 1,,N}, a discrete set of points. Find centralized, trusted content and collaborate around the technologies you use most. Clipping: 'on' text_to_display = {['X: ',num2str(pos(1))], @Jacopo in R2019a the property is called PointDataCursors. Reload the page to see its updated state. Jacopo. 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. y = sin(x); %Move the data tip to the right most data vertex point Is it possible to maintain the hittest property of a figure after enabling datacursormode? % Create a new data tip 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(hDataip, 'MarkerSize', 5, 'MarkerFaceColor', 'none', following the COPYOBJ statement: set(findobj(gcf,'type','patch'),'hittest','on'). How do I update the position of the data tip to a new location? Thank You Marker: 'o' % Listen to datatip existence and feed to panel P.S. close all, clear all, clc; For example, you can get the series that were plotted in a graph: There must be other informations that you can get from the "findall(gcf,)" methods. Interactively create and explore visualizations for your data using the Create Plot Live Editor task. Parent: 492.005493164063 This seems to be what the poster was referring to: @richard: I have data which I have plotted and shown in the question. Based on set(hDatatip, 'UIContextMenu', get(cursorMode,'UIContextMenu')); We can use these to update (for example) the marker size, color and style; and the texts font, border and colors. Try using the actual figure handle rather than gcf if its a hidden handle then gcf will not return it. 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. Plot data from a txt in a meshgrid. % my_figpanel = findall(gcf,'Tag','figpanel:text field'); >> cursorMode.CurrentDataCursor.get You can also select a web site from the following list: Select the China site (in Chinese or English) for best site performance. % Delete all data-tips Do you have any idea why this may be happening? I have used programmable datatips to pull various extrema and their time hacks off a telemetry stream during V&V of flight software. Enable: 'off' Here is a brief list for reference (R2011b): I am trying to get access to the current list of datacursors programatically, but nothing I have tried seems to work. Im new to matlab so this is likely to be a very basic question but I havent been able to find an answer so far. >> cursorMode.DataCursors Understanding it by simply reading the code (under %matlabroot%\toolbox\matlab\graphics\) is actually pretty difficult. pos = [x(index(i)) y(index(i))]; % 8. Although the default blue line and markers are nice, sometimes you want to make the line and markers stand out a bit more. To do this add the fo pos = get(eventData,'Position'); interp1 will match the graph exactly, but you might be interested in fancier curve-fitting operations, like spline approximations etc. cursorMode = datacursormode(ancestor(hObj, 'figure')); set(hDatatip,'Host',hTarget); function cp = myupdatefcn(obj,event_obj) Here are the outputs Ive got at the prompt: >> dcm=datacursormode(figHandle) 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. The data are represented as ds which are a few lines, each of which i Interpreter: 'tex' The Matlab documentation says, You place data tips only by clicking data objects on graphs. Connecting three parallel LED strips to the same power supply. My X values are in the range 0 to 1500000 To create a surface we have to give the values x and y for z, (z= f (x, y)). StringFcn: [] Call the gca command to get the current axes within that figure. ['Y: ',num2str(pos(2))]}; Connectez-vous votre compte MathWorks; Mon compte; Thanks for contributing an answer to Stack Overflow! cursormode = datacursormode(gcf); This video shows how to use some of the Data Distribution plots such as Histograms, Pie charts and Heatmaps to display data. Your excel file has no much data. Im sorry if this is a repeat question as I feel somebody probably has asked it before, but Ive scoured this thread and still havent found the answer to my question. I try to zoom in the graph and get the exact value of the plot at some specific point. MarkerEdgeColor: 'k' MATLAB provides the following functions for low-level import of text data files . Ive tried almost everything, including suppressing it in the updateFcn callback using: function output_txt = getRidofTextBox(obj,event_obj, datapointhandle) (Please ignore the code just see that in code I have also used "plot(app,UIAxes2))" But still no plot for figure 2. position = [X(end),dataExtract(end),1; X(end),dataExtract(end),-1]; Tag: '' I have already shown how these can be used to customize and control data-tips programmatically (rather than interactively). Do you know how to add two different markers on two ends of a line? set(hDatatip, 'MarkerSize',5, 'MarkerFaceColor','none', Ready to optimize your JavaScript with Rust? Then a panel is created to hold the same content that is in the data tip. set(hDatatip, 'HandleVisibility', 'off'); They enable users to interactively click on a plot location and see a tool-tip that contains the clicked locations coordinates. DefaultExportVarName: 'cursor_info' I was thinking I could get it to identify mins/maxs but I w Saltar al contenido. 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.) set(dcm_obj, 'DisplayStyle', 'datatip', 'SnapToDataVertex', 'off', 'Enable', 'on'); I can only select pixel (e.g. hDatatip = cursorMode.createDatatip(hTarget); BTW: 'MarkerEdgeColor', 'k', 'Marker', 'o', 'HitTest', 'off'); DisplayStyle: 'datatip' set(hDatatip, 'Host',hTarget); Does balls to the wall mean full speed ahead or full speed ahead and nosedive? graphics.datacursormanager cursorMode.CurrentDataCursor.FontName ='Courier New'; % this does the data tip copyobj(allchild(old_fig),new_fig); this copies everything except for the datacursors. end I just arrived to this post ,and what a surprise, because I use all this tips for flight test software aswell (data processing of flight parameters)!! hLine = plot(xdata, ydata); Uptime Authority's turnkey solutions and single-point service options save our clients time and money, while allowing us to manage and coordinate every aspect of the procurement and installation process. This causes subsequent mouse clicks into the new (magnified) figure to be ignored, so they fail to fire the callback. DisplayStyle: 'datatip' We can increase the efficiency in which information is shared across your organization, saving you time and money. clf ans = X=75 Y=122) but I have to be able to select points in the sub-pixel region (e.g. BeingDeleted: 'off' Plot data tips are a great visualization aid for Matlab plots. set(dcm_obj,'DisplayStyle','datatip', I am also linking my Matlab Answers post which has an image of the subplots that i am refering to. try Hello, Undefined function 'update' for input arguments of type 'matlab.graphics.shape.internal.PointDataTip'. % See the list above. 1. An easy way to do this is to click the figure to bring it to the foreground. Find the treasures in MATLAB Central and discover how the community can help you! I have a contour plot with multiple data sets plotted on it, i.e. Let us see one more example related to bode plot Matlab for a complex conjugate pole. @Yair Thanks, just what I was looking for. We do not currently allow content pasted from ChatGPT on Stack Overflow; read our policy here. Thanks, MarkerFaceColor: 'none' Copy. 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? BusyAction: 'queue' % Assuming the click uniquely selects a particular axes, copy it to a new figure along with its contents ['SubName', mat(pos2).name]}; Examples of frauds discovered because someone tried to mimic a random sequence. how to tell MATLAB to rewrite a complex equation into a michaelis-menten form equation? end. Contact, info@UptimeAuthority.com item8 = uimenu(hcmenu,'Label','Cursor Mode','Callback',@update_FCN_call); cursorMode = datacursormode(ancestor(hObj, 'figure')); The datatip function by default displays X Y Z using the Position property of of the event_obj. Host: [1x1 graph2d.lineseries] How can I get the program to recognize that? I had a hunch that might be an issue, but wrote gcf in my code snippet above for brevity. Edited: MathWorks Support Team on 5 Nov 2020. ans = Thank you! MATLAB has various functions that can be used to display data graphically. Connect and share knowledge within a single location that is structured and easy to search. Large or small, we have services that can help your organization stay connected. set(hDatatip, 'OrientationMode', 'manual'); 'MarkerEdgeColor','k', 'Marker','o', 'HitTest','off'); hDatatip = createDatatip(cursorMode, hObj); h = get(datapointhandle, 'DataCursors'); 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). So, after all that, the solution to this problem seems to be a one-liner(!) @MU of course this is possible, but you would need to do this programmatically, by trapping the mouse-movement events in a callback. % Note: the optional @setDataTipTxt is used to customize the data-tip's content text 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. The advice, though there might be better answer, from me is: try to see the rate of increase in the curve. end. item1 = uimenu(h1,'Label','dashed','Callback',hcb1); If you don't know the underlying form for the equation, then you will find an infinite number of different equations that fit the data. So, potentially you can have different datatips with different UpdateFcn in the same figure. addlistener(hDatatip,h); Now, all you need to do is run exponential regression in Matlab to find the optimal values of parameters a and b, and you'll have your equations. Link. set(hDatatip, 'Position', pos); In this example, t is time (labeled in seconds in the animation) and x, y, and z are spatial data to describe a particles location. DefaultExportVarName: 'cursor_info' The first two errors are not a big deal, but I dont know what to do about update no longer working. say.. ive just created a figure with a few subplots and added a bunch of datacursors. Ive tried several ways but always get the same message: Error in custom datatip string function. I tried updating the String field of hDatatip, but that doesnt seem to help. When using the histogram function to plot the estimated PDF from the generated random data, use pdf option for Normalization option. Im using the data cursor for its point selection property but would rather the textbox not be displayed at all. Well, this has never stopped us before, has it? Inicie sesin cuenta de MathWorks; I dont like to use Excel set(hlines(line),'uicontextmenu',hcmenu) >> cursorMode = datacursormode(handles.figure1) Currently, I have to have the user export cursor data to workspace by right clicking the datatip and doing it manually. MATLAB clears any previous plot you created. cursorMode.DisplayStyle = 'window'; hcmenu = uicontextmenu; %set(get(hDatatip,'TextBoxHandle'), 'Visible', 'off'); The question is: How can I make a datatip display full integer value? @S_H: That's a problem, then. At any one time, only a single such mode can be active in any figure window (this is a known limitation of the design). ')); view(gca, 2) hold on For example the 'Orientation' field changes from 'top-right' to a simple 'topright' etc. item5 = uimenu(h2,'Label','green','Callback',hcb_g); 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 You can still use getcursorinfo(dcmObject) to get a list of all data cursors. The helper script myMagnifyFcn determines which of the subplots receives a mouse click, then creates a new figure and copies just that axes into it (using findobj, etc.). By clicking Post Your Answer, you agree to our terms of service, privacy policy and cookie policy. end % % Note: the following code was adapted from %matlabroot%\toolbox\matlab\graphics\datacursormode.m 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 Hey Dr. Altman, Since its a private property of the datacursoremode, you cannot access it directly. set(hDatatip, 'MarkerSize',5, 'MarkerFaceColor','none', 'MarkerEdgeColor','k', 'Marker','o', 'HitTest','off'); 9. Now that you can see the raw data it is time to add labels and a legend to your plot. Following the plot command on a new line enter the followi Thanks again, Yair, for doing all the heavy lifting. We are a technology company that combines Low Voltage Cabling, Access Control, Speaker/Intercom Systems and Phone Services. Site design / logo 2022 Stack Exchange Inc; user contributions licensed under CC BY-SA. 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. catch set(my_figpanel,'FontName','Courier New') Is this an at-all realistic configuration for a DHC-2 Beaver? % enable datatips Since we can access pre-stored handles only of programmatically-created (not interactively-created) data-tips, we need to use a different method. To open a file, the syntax is: f=fopen (File_name, Access_mode) Here, fopen () function accepts two arguments: name of the file or File_identifier. In any case, I will report back if I ever get to the bottom of this. 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). Im plotting an image in MATLAB using imagesc and then selecting points with the datacursormode. All off the functions called I simply stole verbatim from datacursormode.m and pasted into the same file as this function. But, most importantly, we stand by our work! set (cursormodeMagnifiedFig, 'NewDataCursorOnClick', true, 'SnapToDataVertex', on, 'UpdateFcn' {@myToolTipFcn, arg1, arg2, arg3}); This is exactly the same code that I have working for other figures. cursorMode = datacursormode(gcf); p.s. 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. % Delete all data-tips I would like to cleanly delete this. rev2022.12.9.43105. You cannot expect them to remain unchanged forever. set(cursorMode, 'enable','on', 'UpdateFcn',@setDataTipTxt); cursorMode.removeAllDataCursors(); I would really appreciate any suggestions! Ive tried the simple way of just outputting HTML from the UpdateFcn (as below) but without any success. Annotation: [1x1 hg.Annotation] When I use your code above, the datatip is displayed in the right location on the curve, but instead of having the X and Y values, it contains a message that says Error in datacursor datatip string function. 2) How to plot these mentioned 3 distances on the plot( by zooming into plot it will stay as legend ). Could you give an example of what the equivalent syntax looks like in HG2 ? Instead, use struct(dcm).PointDataCursors. h_magnifiedFig = figure('tag', 'magnifiedAxes', 'keyPressFcn', get(hobj, 'keyPressFcn'), 'Name', 'Magnified Axes'); Note that this specific functionality requires a different syntax in the future HG2 compared to the current HG1. For each data-tip, we will get two such handles: one for the marker (Type=line) and the other for the text box tooltip (Type=text). If youd like me to look at your code, please contact me via email (the link is at the top left of every page here) for a short consultancy. Code is below: function output_txt = track_assess_ppi_data_tip(obj,event_obj) position=[xcoord,ycoord]; MarkerSize: 5 The cursor nethertheless snaps to the data vertex. Does a 120cc engine burn 120cc of fuel a minute? Thanks in advance. do you know any other turnaround? hDatatip = cursorMode.CreateDatatip(hTarget); -first, the middle step settings flash on the screen (and without the pause command between them, they are not accepted); Data Cursor not moving upon pressing the arrow keys in scatter plot. % Set the data-tip orientation to top-right rather than auto 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. z = peaks; Interactively create and explore visualizations for your data using the Create Plot Live Editor task. % Create a copy of the context menu for the datatip: But in this case, even though I can toggle the data cursor button in the latter figure just fine, @myToolTipFcn never seems to get called I put a debug print statement at the top and it never executes. WebMATLAB is a system whose basic data element is an array that does not require any dimensioning. function update_FCN_call(~,~) Go to matlab r/matlab Posted by ferociouspeach. %How to turn on/off this menu and keep other menus work Using MATLAB 2018b, I have been able to change the EdgeColor and TextColor of the datatip, but the BackgroundColor will not update properly. By clicking Accept all cookies, you agree Stack Exchange can store cookies on your device and disclose information in accordance with our Cookie Policy. datacursormode on; 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. data cursor). The support is looking for a workaround to achieve my task and has additionally contacted the development team. Draggable: 'on' cursorMode = As a last resort, I tried executing this inside the callback: dummy = datacursormode(gcf); h_magnifiedFig = figure('tag', 'magnifiedAxes', 'keyPressFcn', get(hobj, 'keyPressFcn'), 'Name', 'Magnified Axes'); Thank you very much, and congratulations for this site, it is very useful! HandleVisibility: 'off' Any ideas what is wrong? % set up listener to datatip 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. Any suggestions are appreciated thanks! HitTestArea: 'off' Courier New) or use HTML formatting in your string (e.g., my data tip string here). This is always a risk when using undocumented features such as the ones explained in this blog. set(get(hDatatip,'DataCursor'), 'DataIndex',index(i), 'TargetPoint',pos); % numerical differentiation of V: cos(2*pi/180*t), The region of negative slope lies between, You may receive emails, depending on your. 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 was thinking I could get it to identify mins/maxs but I would still need to identify if the region is sloped downward. Asking for help, clarification, or responding to other answers. 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