arrow code matlab

Call the tiledlayout function to create a 1-by-2 tiled chart layout. ARROW (5/25/2016) Draw a line with an arrowhead. Jocelino Rodrigues: I cannot reproduce your error. an exactly vertical arrow (from [0 0 0] to [0 0 1]) is plotted with a length of ~16 reaching far in the negative z-domain. Error in arrow (line 423) Very useful. lims = get(ax(oldaxlims(:,1)),{'XLim','YLim','ZLim'})'; LINE 962: if isempty(oldh), H=gobjects(narrows,1); else, H=oldh; end; h1 = feval(mfilename,[axlim(1) axlim(4) 4],[-.8 1.2 4], ... Error in arrow (line 142) axis([-1 1 -1 1 -1 1]). Don’t stop learning now. Sign in to comment. Sorry, but does not work for me (revision R2108a): Using arrow with this script yields an unusually long arrow in the z direction, which is quite annoying. Works well with my oldest version of MATLAB. (code) LED fading of Arduino using Matlab. Just exactly what I was looking for! 'Head.Length', 2.5, ... if isempty(oldh), H=zeros(narrows,1); else, H=oldh; end; 'Y', [0 2], ... I'd emphasize that one should call axis(axis) prior to plotting the arrow, or the axis limits will get reset which will render the arrow incorrectly. https://raw.githubusercontent.com/stabix/stabix/master/third_party_code/arrow/arrow.m. Plot Pressure Distribution (Cp) Over an Airfoil / Aerofoil ; Vector Plot ; Arrow Plot, draw, Evenly Spaced Streamlines, Random Boolean Network Toolbox, arrowflow, quiver2.m v1.2 (Nov 2009), displayQuatCurve, genStressStrainStates, The carpetplot class, Ogive optimization toolbox. The function can plot both 2D and 3D vector with arrow … x3 = x1 + v3; hold on; grid on; box on; ax1=subplot(2,1,2); Once I found it everything was working the way I wanted it to in a couple of minutes. >I'm really having trouble with 3-D plots >and arrows pointing along the 3rd axis. function vectarrow(p0,p1) %Arrowline 3-D vector plot. Single-line comments are comments that require only one line. I was trying to make a arrow in a gui window. How to change the line type? If you need to hide mentioning arrows from legend In same cases, like Maltab GUI, one cannot just set the axes before making the plot. hh=arrow_demo3(demo_info); It seems that the ARROW cannot work with Matlab R2015a version. can this function specify the 'LineStyle', such as '-' , '--' , '-.' Popular File 2012 2013, ARROW (5/25/2016) Draw a line with an arrowhead. I only have a couple of minor quibbles - 1) the author didn't make it totally clear what normal MATLAB line properties you should use to change the arrow color and arrowhead color. Superb effort. Error in arrow (line 423) axes(ax1); arrow([x1 y1],[x2 y2]); arrow fixlimits; I always do "fixlimits" just in case. Great work. I _think_ most of the comments below have been incorporated. The current code only supports reading/writing numeric types from/to Feather files. As you can see, this file by Erik was originally submitted back in 2000, which was the year I started using MATLAB. This is a very early stage MATLAB interface to the Apache Arrow C++ libraries. arrow([0 0 0],[0 0 1]) Thank you very much for your hard work and masterful technique. function arrow2(varargin) end Vote. Editor's Note: This file was selected as MATLAB Central Pick of the Week Popular File 2012 2013. plot([startpoint(1) endpoint(1)],[startpoint(2) endpoint(2)],'linewidth',2,'color',[0 0 0]); Useful in many ways but the code is very complicated and it's not clear how to attain specific effects without trawling through the function body. However, today I observed a strange behaviour after calling it twice (different figures) but with identical arguments and I wonder what the reason may be. Follow 32 views (last 30 days) Andrew on 9 Jun 2015. Show Hide all comments. 5 stars for the function. Thanks! I got the same problem on Matlab R2010a (7.10.0). 2. dx=d(1);dy=d(2);dz=d(3); A shame by the way Matlab doesn't seem to have a builtin function for drawing arrows from the command line. I got an error message as. arrow([0 0 0],xvector, 'EdgeColor','k','FaceColor','k') Generate arrow keys in MATLAB gui. What MATLAB version? curT = viewmtx(azA,elA); Brenton: Piggy-backing on Justin's edits, update with the following: LINE 504: oldaxlims(min(find(oldaxlims(:,1)==0)),:) = [ii reshape(axl',1,6)]; LINE 960: Find the treasures in MATLAB Central and discover how the community can help you! zlabel('z [mm]', 'FontWeight', 'bold'), %Here goes the view setting (code) Interface Arduino with Matlab. 'Shaft.Width', 1, ... Excellent. >arrow([0;0;0],[0;0;1]) If I avoid debugging then the problem disappears. mask = arrow_is2DXY(ax(oldaxlims(:,1))); >> arrow Single arrow, with rectangular shaft. 2. Any help would be greatly appreciated. (x1,y1) = (3,0.5) and (x2,y2) = (6,0.5) how is x and y adjusted for exact location? Before that it didn't work on my version but did on other matlab installs I have at school etc., getting the same error people are talking about. Love this script, but it looks like there's a fundamental incompatibility with the new 2014b graphics system, in which gca no longer returns a number. Accelerating the pace of engineering and science. This is great, I messed around with the annotations for 1.5 hours before finding this. function [h,yy,zz] = arrow(varargin) The axes limits need to be set afterwards. , and ':'? So if someone knows the code to draw a triangle I can merge it with the code for a line to draw an arrow. arrow(tStart,tStop,10,'Ends','Both','Width',1,'FaceColor','k','EdgeColor','k'); Both tStart an tStop are numerical parameters and pre-defined. I'm using arrow.m to draw arrows which represent data on the plot and it would be helpful to have a blue arrow in the legend. Thanks! If you are trying to make the arrow red, arrow(r,u,'Color','r') is the correct syntax. figure(1) Now you can call arrow2([1, 2], [3, 4], 'YouLegend', ...) The following Matlab project contains the source code and Matlab examples used for arrow3 version 5. This code (specifincally including the documentation (which is at the same time incomplete and inadequate) is far too complex for the simple thing(s) it does. the standard Matlab distribution, Inspired: Very Useful and convenient. arrow([0;0;0],[0;0;1]) This brings back memories from my graduate school days. (code) Read Analog from Arduino into Matlab. 'matlab.graphics.axis.Axes'. to set the color of the arrow, see this example: (And "global test" to the top of the arrow function) In 2018b and later (and possibly some earlier versions), the syntax Thanks Justin and Brenton! I'm not sure if this is an arrow.m problem, or Matlab's. does NOT return a patch object handle 'h' for the arrow. Many thanks. so as not to obscure a marker), I've written a slight update (note: not compatible with arrow.m properties directly, but you could easily adapt): function [varargout] = my_arrow(start,stop) Undefined operator '*' for input arguments of type 'matlab.graphics.axis.Axes'. MathWorks is the leading developer of mathematical computing software for engineers and scientists. Error using arrow (line 190) (Email address is in the m-file; or click on my name then "view profile" then "Contact". scatter3(X,Y,Z,'ko') Add a title to the plot by passing the axes to the title function. If you try to zoom in with your script, the function zooms in but the arrow stays where it was before .. i kinda want the arrow to be in the exact same position no matter what.. like if you od it manually and pin it to axes :( i want that but with some code and not manually. % Graph the cycloid curve ax = o * gca; Nice function, but unfortunately it doesn't accept axes handle, like plot. function out = draw_arrow(startpoint,endpoint,headsize) setting the view before the arrow functions solves your problem e.g. hold on, grid on, box on Answers (3) Sanjay Manohar on 14 Feb 2017. x1 = endpoint; This is much better than the built-in annotation.m. MATLAB Library for Apache Arrow Status. In MATLAB, length() gives the length of an array, and size() gives the size of a matrix. annotation= ('arrow'); would not work since you are assigning the string arrow to a variable called annotation. % vectarrow(p0,p1) plots a line vector with arrow pointing from point p0 % to point p1. in line 969 or 971 instead of I was able to get it to work in 2014b with 2 changes: Previous: Line 423 ax = o * gca; In MATLAB, comments are of two types: Single-line Comments; Block Comments; Spanning MUltiple Lines; Single-Line Comments. % below line fills the arrowhead (black) oldArrowProps = {'EraseMode'}; It works for one arrow, but not the demo. Instead it's just a double. What version of MATLAB? Frequency Response of Digital System in Matlab. Easy to use!! What version of MATLAB are you using and on what platform? Excellent and easy to use. https://drive.google.com/file/d/0B8e6a9ddS2_aTnBidW5sTVllZUk/view?usp=sharing, https://raw.githubusercontent.com/stabix/stabix/master/third_party_code/arrow/arrow.m, Plot Pressure Distribution (Cp) Over an Airfoil / Aerofoil ; Vector Plot ; Arrow Plot, You may receive emails, depending on your. Any idea how to correct that? When I use this with a LineStyle such as dashed, the dashes look odd, with variable spacing between the dashes, e.g. matlab documentation: Arrows. Jiro's pick this week is arrow by Erik Johnson. I modified your code slightly... instead of doing my own image sampling, I used the imresize command from the image tool box. Please email me (see email address in the m-file) a screenshot, and let me know what version of MATLAB you are using and on what platform. Error in arrow>arrow_demo3 (line 1273) >close all; clc; (Default) 2. But otherwise you have to play with arrow appearance a lot.. I'm seeing some strange behavior when the renderer is painters where part of the tip angles up a little bit. Can you give some code to demonstrate your problem. figure Error in arrow (line 961) Very helpful and thorough! For example, the position can not be adjust by mouse. Very good, better than annotation('arrow') because it is in axis units! Here is an inline function I wrote in about 5 minutes to draw simple arrows. The computed values of mean and stdev appear in the Display blocks. >> set(h,{'FaceColor' 'EdgeColor'},repmat({'r';'g';'b';'m';'k'},1,2)). Tomy's error seems to be with a (very) old version of arrow (circa 2009) and should not occur with the current version. There are various properties of Quiver Plot in Matlab which are discussed below: Arrow color can be modified by ‘Color’ property with the respective values. Please let me know how to change the type of the arrow head. I can find no way to exclude them. Based on your location, we recommend that you select: . Could you give an describtion of how the arrow coordinates are set exactly? The current code only supports reading/writing numeric types from/to Feather files. (code) How to add noise in signal using Matlab. So if someone knows the code to draw a triangle I can merge it with the code for a line to draw an arrow. yvector=[0 1 0]; b = start+[x1 y1 z1]; I hope you continue writing such winderful codes!!! Thanks! Hello Matlab community, I am trying to draw an arrow. The source code and files included in this project are listed in the project files section, please make sure whether the listed source code meet your needs there. As an alternative, there is now the DaVinci Draw toolbox, davinci-draw.com, which uses low-level Matlab commands like plot() and patch() to draw mid-level shapes like arrows. With perfect control of properties, this is exactly what I want! In the legend, the four arrows show up with the labels "data1", "data2", "data3", "data4". Thanks again. Thanks to Justin and Brenton for the recommended mods for R2014b. Note rad = 1; omega = 1; Daisuke, I've not seen this problem before. Show Hide all comments. If possible, please let me know how to have arrow at both the head and tail of the vector. Does this include functionality to depict the arrow at the center of a line (or anywhere really aside from just the tail/head of the line)? Error in Cycloid (line 12) But, i have to deal with seismic waves, and zoom in is more than necessery. I edited the function to add message identifiers so I could turn them off - don't need my Command Window cluttered up with a lot of orange text. Yes, I was using an old version of arrow.m function (5/20/09). x2 = x1 + v2; view([1 1 1]), arrow([0 0 0],xvector, 'EdgeColor','k','FaceColor','k') Arrow color, specified as a three-element RGB triplet, a hexadecimal color code, a color name, or a short name. ARROW(Start,Stop) draws a line with an arrow from Start to Stop (points should be vectors of length 2 or 3, or matrices with 2 or 3 columns), and returns the graphics handle of the arrow(s). You must implement all of the suggestions by Justin and Brenton. view([1 1 1]). set(h, 'FaceColor', 'b'); thanks a lot. If i use arrow to plot 4 vectors is it possible to have each vector be a different color? % below line draws line (black) For a custom color, specify an RGB triplet or a hexadecimal color code. Attention reader! Example syntax: davinci( 'arrow', 'X', [0 10], ... Update: ax = repmat(gca,narrows,1); Previous: Line 590 curT = get(curax,'Xform'); In the MATLAB Function Block Editor, a green arrow points down under the last line of code, indicating the completion of the function stats. Choose a web site to get translated content where available and see local events and offers. The following Matlab project contains the source code and Matlab examples used for draw lines with arrows. I'm really having trouble with 3-D plots and arrows pointing along the 3rd axis. Example. d=stop-start; xlim([2000 3000]),ylim([1e5 2e6]) Thanks to Justin A., Brenton, and Bruce Elliott, I have got it to work as well (R2014b). sorry, how to add this graphic handle (return value) to an existing axes, figure. mask = arrow_is2DXY(ax(oldaxlims(:,1))); Strike that. Watch the MATLAB Simulink design workflow for STM32F4 video at Arrow.com. Can you provide a minimal working example to demonstrate it? rotMatrix1 = [cos(theta1) -sin(theta1) ; sin(theta1) cos(theta1)]; I came across this bit of code online. arrow(r,u,'r') Even the arrowheads in the demo look distorted. ah = arrow(b,e); Update: [azA,elA] = view(curax); The arrowheads look distorted. Can you describe the strange behavior? view([180 0]), not in 3D which is good for visualization only. so please, Mathworks do a arrow / arrow3 function!!! When the arrow script is not used, the legend is displayed correctly. arrow([2390, 0.46*1.2e6],[2335, 2.5e5], 'Length', 10) I add the following comment at the file head. h=arrow([3 3 3],[0 0 0],36,'BaseAngle',60); >>figure,xlim([0 2]),ylim([0 1]),arrow([1,0],[1,1],'LineStyle','--'), Arrow looks good but when it's plotted, my subplot(2,1,2) xlabel goes off the figure. test = varargin{3}; Works nicely, but i did find a bug: hold off, 1. When I drew a vertical arrow, the line got off from the arrow head (see the url for a picture). arrow(r,u,'r') For those of you who would like to have a small gap between the arrow and the start and end point (e.g. zlabel('z [mm]', 'FontWeight', 'bold') Did you manage to resolve the problem? Explanations are excellent. Great tool. Thanks! Undefined operator '*' for input arguments of type 'matlab.graphics.axis.Axes'. >arrow([0;0;0],[0;1;0]) I've had quite a bit of trouble with quiver() in the past since it's not meant to draw a shape so much as vectors, but this does the trick! Double arrow, with rectangular shaft. How do I change the arrow head style in quiver plot. I have a function which control an external board I have controlling a motor. >> x=(0.1:.2:.9)'; h=arrow([x .1+x*0],[x .9+x*0]); Example: arrow([0 1e6],[1000 1e6]); - it doesnt produce an arrow one would expect.. arrow([0;0;0],[0;1;0]) grid on @Li, after reading Rajib's comment below, I saw you can change color in one function call: h = arrow(..., 'EdgeColor', 'g', 'FaceColor', 'g'); @Tobias, I don't have 2014b, but you could try replacing line 423 with: After updating Matlab to 2014b, arrow.m is not working. y = rad*(1 - cos(omega*t)); Awesome application! % Add the velocity vectors Vote. plot(x,y) 2) The author didn't assign message identifiers to the warnings (like for changing the axis limits). ------------NEW------------ ARROW3(P1,P2) draws lines from P1 to P2 with directional arrowheads. So works fine on R2018a and even R2018b. I've tried all the solutions suggested in the comments below, but none of them have worked for me. clf This is a very early stage MATLAB interface to the Apache Arrow C++ libraries. Can you let me know what version of arrow you are using (look for the date on the Copyright line in the arrow.m code)? 25 May 2016. It works well if you have some kind of nice axis limits. I believe the only purpose of these lines was to temporarily change the EraseMode and then to reset it to its original value. theta1 = -1*22.5*pi/180; vectarrow(p0,p1) plots a line vector with arrow pointing from point p0 to point p1. However, I use subplots, e. g. 3 x 2, and some of them have arrows. They are usually drafted to explain what a single line of code does or what it is supposed to produce so that it can help someone to refer to the source code. I hate how MATLAB uses normalized figure coordinates in their annotation() call for drawing arrows. You are brilliant. arrow([0 0 0],zvector, 'EdgeColor','r','FaceColor','r') Very useful, thanks. One little problem is that the arrow created is a little different from the one inserted manually through the "insert" menu. does not have a warning.identifier to allow it to be suppressed, but calling "axis(axis)" before using arrow() prevents the error from occurring. for s = linspace(0, 4*pi, 25) Friedhelm Krumm. 0 ⋮ Vote. There are four categories of arrow to choose from, as shownin the table below. set(h, 'EdgeColor', 'r'); If not, could you tell me how I could adjust this ? % You may want to execute AXIS(AXIS) before calling ARROW so it doesn't change Your code of. Very nice utility function. I modified your code slightly... instead of doing my own image sampling, I used the imresize command from the image tool box. Thanks for your reply. arrow (https://www.mathworks.com/matlabcentral/fileexchange/278-arrow), MATLAB Central File Exchange. 4. hold on; thank you. The program is really great with all the aspects of plotting a directed line excellently covered. hold on; Arrow position is refreshed with each zoom callback. % % This version of ARROW uses features of MATLAB 5 and is incompatible with % earlier MATLAB versions (ARROW for MATLAB 4.2c is available separately); % some problems with … The handle argument lists are identical. ARROW DEMO & ARROW DEMO2 show 3-D & 2-D demos of the capabilities of ARROW. Build MATLAB interface to Apache Arrow using MATLAB R2018a: cd arrow/matlab mkdir build cd build cmake .. make Non-standard MATLAB and Arrow … https://drive.google.com/file/d/0B8e6a9ddS2_aTnBidW5sTVllZUk/view?usp=sharing. using your code it works perfectly :). Why not put demo code in a separate file? Thank you for the preceeding comments. Soon after, I was looking for a H(k) = patch(xyz{:}); Probably it would be reasonable to add a feature of automatical swapping baseAngle and tipAngle, if baseAngle < tipAngle. It is stopping in line 423 with the error: Undefined function 'mtimes' for input arguments of type 'matlab.graphics.axis.Axes'. It looks really great...I'll start use instead of quiver! Create scripts with code, output, and formatted text in a single executable document. Great package, it should be incorporated in ARROW requires that the property 'r' be paired with a property value. Other MathWorks country sites are not optimized for visits from your location. Excellent work, thorough documentation. Join ArrowPerks and save $50 off $300+ order with code PERKS50 set(H,'EraseMode','background'); %because 'xor' makes shaft invisible unless Width>1. global test Generally works fine. varargin(3) = []; >figure(1) The categories are: 1. Highly configurable, easy to use and well documented to boot. Thanks. Error in arrow (line 406) Follow 31 views (last 30 days) Andrew on 9 Jun 2015. ylabel('y [mm]', 'FontWeight', 'bold') Can you email me some code? Thanks to the comments of Justin A., Brenton and Bruce Elliott, I got this fantastic file working for the arrows I needed in MATLAB R2014b. x = 0:pi/100:2*pi; and see. Add to the top of the function this. global test m: it looks fine for me. Nice Job! FYI, Shuliang's error went away when he reinstalled. arrow DEMO Piggy-backing on Justin's edits, update with the following: LINE 960: %by Ryan Molecke. Instead of arrow, please let me know how I can have a dot at both ends of the vector? This package is exactly what I was looking for. Thanks. This can be fixed by a change on line 949: This is great. Couldn't figure out how to make the arrow line and arrow head have a specific color. I tried Tomy's code for a trial and it shows: this program is really good, easy-use. -------------------------------. Instead you would want to do something like. Something like this: e = stop-[x1 y1 z1]; ARROW (Start,Stop) draws a line with an arrow from Start to Stop (points should be vectors of length 2 or 3, or matrices with 2 or 3 columns), and returns the graphics handle of the arrow (s). Many thanks. arrow([0 0 0],yvector, 'EdgeColor','b','FaceColor','b') Nicely done. Terrific. X = [0.5 0.5]; Y = [0 0.5]; annotation ('arrow',X,Y); which would draw an arrow starting at the coordinate (0.5,0) and ending at … I tried to include 'CrossDir',[0 0 1] as suggested by the author of the script, but it didn't help. Learn more about electronic components technology and find events near you. Thanks for sharing it with us. axis([0 3 0 3 0 3]); axes(ax1); > Christopher This code, at least on >R2009a, looks very strange. Sign in to comment. arrow keys input keyboard keypressfcn. Shuliang, It's not clear how that error could occur: there is no '*' operator on line 406 that is giving the error. The default RGB triplet value of [0 0 0] corresponds to black. How to change the size of the arrow? Because I can't find a command that I can direction, length and point, all them together except for arrow command. Quickly leads to appealing graphical output. r=[rad*(omega*s-sin(omega*s)),rad*(1-cos(omega*s))]; 4. Very easy to use with detailed documentation. Get hold of all the important CS Theory concepts for SDE interviews with the CS Theory Course at a student-friendly price and become industry ready. For everybody that has problems running the current arrow.m version on newer Matlab versions, please follow the corrections suggested by Justin and Brenton from 11 Nov 2014. y = sin(x); figure(1) 0. But it's not too hard to figure out. Thanks again. Can you elaborate? Although I've encountered a different problem, the script seems to be working perfectly without any errors but the output figures keep disappearing. The code: Easy to use. xlabel('x label'). Use "zoom out" command after first definition. can you please include the color options that you write on these comments to the code help lines H(k) = patch(xyz{:},'HandleVisibility', 'off'); Jocelino, you probably want to set you xlimits and ylimits before calling arrow, e.g. It's also not obvious that the arrow will be a patch object, so has properties like edgecolor, facecolor, rather than line properties. arrow(Start,Stop,'EdgeColor','b','FaceColor','b') color arrow. close all; clc; One can change the colour of an arrow by specifying 'FaceColor' and 'EdgeColor' properties, which is, unfortunately, not documented. ------------ORIGINAL------------ Z1 = 500; set(gcf,'position',[100,250,750,600]). Double arrow, with line for shaft. How do you turn off the arrow heads at either ends of the start and stop points? It's not obvious that this fixed the subplot resizing problem, but it worked! Neat package, but (unless I'm missing something obvious) renders itself essentially USELESS. However, when using this arrow script, the legend is messed up. ), Dear Erik, I am running several Matlab versions (2016a, 2016b and 2017a) and the "strange behavior" is that the arrows are distorted in both, length and shape of the arrow head. When I call arrow fixlimits I get a message: "ARROW does not remember any axis limits to reset. By itself, ARROW will use the mouse to allow selection. Can you give a minimal working example to demonstrate it? Thanks for this excellent tool. Does anyone know how to add an arrow to the legend? hold on; grid on; box on; I strongly encourage the author update this function according to the comments made. If anyone can help it would be immensely appreciated and have my eternal thanks. Excellent documentation, and very useful packaged function! [x1,y1,z1] = sph2cart(th,phi,arrow_gap); But nonetheless it would be nice if they would be perfect by default ;-), This code, at least on R2009a, looks very strange. if nargout == 1 Overall, the script is very useful. Adding the 'Linestyle',':' for dashed line option makes the arrows look rather strange. By far the easiest way to draw arrow compared with arrow3.m and mArrow3.m. lims = get(ax(oldaxlims(:,1)),{'XLim','YLim','ZLim'})'; LINE 962: The line certainly is not dotted (on Matlab 6.5). 3. ARROW PROPERTIES shows the properties that can be set (length, base angle, tip angle, width, which ends have arrowheads, etc.). >> h = arrow(start, stop); xlabel('x [mm]', 'FontWeight', 'bold') Here the suggested changes copied from their posts: Justin: oldArrowValue = get(H,oldArrowProps); if ~isempty(crossdir). In MATLAB, a string is a character array. Ruins the figure when plotting 3-D arrows with z-components. These changes will suppress warnings about use of the graphics object property "EraseMode", which is no longer used. See: Arrow CPP README. set(gcf,'position',[100,250,750,600]) Thanks alot. It makes no sense and someone at MathWorks got lazy, so it becomes nearly useless. v3 = v1*rotMatrix1; Hope this helps others who are struggling to get the handle to the arrows. Hello Matlab community, I am trying to draw an arrow. hold on I want to put this function in an if else type code so that if the button is pushed the function powers the board (sets value to 1) else the board return to no power (sets value to zero). Excellent package. Undefined operator '*' for input arguments of type 'matlab.graphics.axis.Axes'. draw_line2 draw directional vector points in 2D with directional arrows draw_line2(p1, p2) draw line with defulat optional parameters; draw_line2(p1, p2 , param1, val1, . Please click on my name, click "view profile" and click on "Contact" to e-mail me. I just wonder if it is possible to fix the arrow head size so that it does not change with axis- zoom or resize. Previous: Line 423 ax = o * gca; Undefined operator '*' for input arguments of type 'matlab.graphics.axis.Axes'. What version of MATLAB on what platform? Takes some getting used to, but the comments are a huge help and once I got the hang of it, this was really useful. x and y need to be between 0 and 1 within annotation, so if I want the arrow to go from e.g. u=[rad*omega*(1-cos(omega*s)),rad*omega*sin(omega*s)]; Any help would be highly appreciated. mask = arrow_is2DXY(oldaxlims(:,1)); Works well on 8.6.0.267246 (R2015b) after putting in the exact changes that Johannes recommends (2 posts down). If you know anything about this that I can, could you give me a sample code? >> arrow DEMO Same here in 2015b, not working properly Arrow color, specified as an RGB triplet, a hexadecimal color code, a color name, or a short name. Any help would be greatly appreciated. This is the case no matter how one tries to set its size. Sign in to answer this question. arrow(varargin{:}). I wish the z arrow didn't become long. But it can only draw 2d arrows, whose heads are patches. Thanks in advance! Great function. grid on Thank you for the comments - I've got it to work now too. The reason I tried this was because in the help file: MATLAB: Reading Arrow Key Input. Help topics very comprehensive. rotMatrix = [cos(theta) -sin(theta) ; sin(theta) cos(theta)]; Here is my line of the code: "You may want to execute AXIS(AXIS) before calling arrow so it doesn't change the axes on you; arrow determines the sizes of arrow components BEFORE the arrow is plotted, so if arrow changes axis limits, arrows may be malformed.". Impulse & Step Response of Dynamic System in Matlab.

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