When the image is zoomed in at the desired level, i wish to use the ginput function to pickup and process a point. This function behaves similarly to matlab s ginput, with an added ability to customize the cursor color, line width, and line style. The ginput function wont return, and wont assign any values. How can i use the ginput function to select a point on an image in matlab along with the zoom function. When using ginput a blank figure first appears and then an axis is created. It is something we the team i work in downloaded a while back for use in place of ginput for pretty much the same reason as you. Zooming inout while using ginput function in matlab. Learn more about getpts, ginput, gui, mouse click image processing toolbox. The input of this intersection is the exterior and interior orientation elements of the images and \or camera. The input from the keyboard must come after a request. Ginput 3d in matlab download free open source matlab. I get the length of x from ginput, then in a loop, i plot xi,yi, prompt to enter a thickness for that value then delete that plot marker and move on to the next. How to use matlabs ginput on an image imported by imshow. Ginputsa ginputsa ginputvc ginputvc ginputii ginputii.
Myginput graphical input from mouse with custum cursor pointer. Choose a web site to get translated content where available and see local events and offers. Based on your location, we recommend that you select. X,y ginputcn gets n points from the current axes and returns the x and ycoordinates in length n vectors x and y. Mark the twelve points by a click with the mouse button in the plot use ginput. Press the return key to stop before all n points are selected.
I am using the ginput function in matlab to use the cursor to collect many x,y coordinates on images. But i am not able to implement this in the app designer. It is a fileexchange download so you can simply edit the file and rename it if you want, taking note of any license requirements it has. Very slow ginput in 2014b matlab answers matlab central. Using ginput in matlab on a specific figure without an. I cant set the uifigure as the current figure using figureapp. The user should press the enter key after measuring the point in each image. Did you press the return key after clicking in the axes one or more times. Getting user input in matlab the use of input, ginput. Matlab returns the coordinates of your selected points. I need to use this command in 3d and i havent found any reference. Pointers are handled by the operating system, and are onebit black and white with a 1 bit mask transparent or not.
Just use view to put the axes in the plane you want, the use this function, and it returns in the correct coordinates. Access new product features, new product offerings, or free trials. The mfile should ask for a new number until the vector has 12 elements. Which is a lot of clutter, not to mention used memory. I want to zoom in on an image using the zoom function. After posting the question, i thought of one way to do it. My question is using the ginput function to select points in my plot, how can i fill the plot grids with a color corresponding to the points i select. It worked smoothly in the old version, but extremely slow in 2014b. Below is the code im using, but ginput works slowly even in any circumstances i tried. I tested both of them on matlab r20a and they work fine. However, when i use the function in the same way in the maltab app designer i encounter the described problem. Ginput3d allows you to ginput in xy, yz and zx plane of 3d plot, ginput can do that only in xy plane. Calculate height of object matlab answers matlab central. Older versions% of matlab can copy and paste entirebloc.
This download is a complete standalone installer for windows. Display the matrix in the command window and put a comment there as well. Change mouse cursor appearance in ginput matlab answers. I want to use the ginput command to track the coordinates of clicks as many as i want, which is possible, while plotting a point of each coordinate on the figure before i. Rewritten matlab gait analysis code and associated calculators and setup files. Put these twelve rounded values together with the twelve original values in a matrix different columns. Matlab matrix laboratory is a mathematical calculations software which contains a lot of features. I am following a certain path along the image and need to zoomin to get a precise coordinates, but the zoomin option is disabled while using ginput. The code is able to to compute the x, y, z coordinates of one point by interactively measure the image coordinates in each image from the matlab command ginput. Then round these twelve points towards nearest integer. I would like to obtain the coordinates of a point on a figure actually a displayed image in that figure using the mouse click. Basic plotting commands matlab uses a hierarchical graphics model parameter value pairs printing to files saving a matlab figure putting it all together. Custom ginput file exchange matlab central mathworks.
To choose a point, move your cursor to the desired location and press either a mouse button or a key on the keyboard. The following matlab project contains the source code and matlab examples used for ginput 3d. The figure must have focus before ginput receives input. Most graphics files begin with a header containing formatspecific information tags, and continue with bitmap data that can be read as a continuous stream. X,y myginputn gets n points from the current axes and returns the x and ycoordinates in length n vectors x and y. So i used to be pretty good at matlab, buts its been a few years since i have really used the program and i am pretty rusty. Below, i have code for a plot of lines in the x and y directions to form a large grid. Identify axes coordinates matlab ginput mathworks italia. The main function in this tutorial is objfind, openfig, close all. Getting user input in matlab the use of input, ginput and inputdlg. This function works similar to ginput but only presents the crosshair in axes specified by the user.
Matlab matrix laboratory is a numerical analysis and computing tool for implementation of algorithms, matrix manipulations, plotting of functions and visualizing of data. Read 12 arbitrary numbers from the keyboard to a vector one at a time. This function behaves similarly to matlabs ginput, with an added ability to customize the cursor color, line width, and line style. The program requires that the user species the xaxis and the y. Read, write, and query image files working with image formats. I was working on a matlab gui with guide and used the ginput function to select several points on the predefined axes and it worked perfectly. Idins pick for this week is custom ginput by our very own jiro doke this is the story of how a users request for a feature turned into a file exchange submission by. I would like to have a code in which a blank figure will appear and a user can click multiple times in multiple places. Download matlab, simulink, stateflow and other mathworks. Download the latest matlab and simulink product updates from the mathworks download center. If you are dealing with large models, you are definitely aware that every time you click play to simulate a model, a good amount of time can be spent in initialization. The following simple mle helps digitizing graphs and drawings by picking a series of points from the graph using the mouse pointer provided by the matlab function ginput see the matlab documentation.
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