It worked smoothly in the old version, but extremely slow in 2014b. Mark the twelve points by a click with the mouse button in the plot use ginput. But i am not able to implement this in the app designer. Zooming inout while using ginput function in matlab. Did you press the return key after clicking in the axes one or more times. 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. This function works similar to ginput but only presents the crosshair in axes specified by the user. The ginput function wont return, and wont assign any values. 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. Very slow ginput in 2014b matlab answers matlab central. I try run the matlab coding for box after i fill all the data, and click ok, why it did not display the result for my bmi.
The input of this intersection is the exterior and interior orientation elements of the images and \or camera. I cant set the uifigure as the current figure using figureapp. Access new product features, new product offerings, or free trials. Read 12 arbitrary numbers from the keyboard to a vector one at a time. Change mouse cursor appearance in ginput matlab answers.
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. After posting the question, i thought of one way to do it. Choose a web site to get translated content where available and see local events and offers. The user should press the enter key after measuring the point in each image. 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.
How can i use the ginput function to select a point on an. Press the return key to stop before all n points are selected. Ginput funtion to be used in guis file exchange matlab central. 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. The mfile should ask for a new number until the vector has 12 elements. Ginputsa ginputsa ginputvc ginputvc ginputii ginputii. I would like to obtain the coordinates of a point on a figure actually a displayed image in that figure using the mouse click. This function behaves similarly to matlabs ginput, with an added ability to customize the cursor color, line width, and line style. Then round these twelve points towards nearest integer.
Getting user input in matlab the use of input, ginput. When using ginput a blank figure first appears and then an axis is created. Display the matrix in the command window and put a comment there as well. Matlab matrix laboratory is a mathematical calculations software which contains a lot of features. Based on your location, we recommend that you select. When the image is zoomed in at the desired level, i wish to use the ginput function to pickup and process a point. I need to use this command in 3d and i havent found any reference. 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. The input from the keyboard must come after a request. The program requires that the user species the xaxis and the y. Basic plotting commands matlab uses a hierarchical graphics model parameter value pairs printing to files saving a matlab figure putting it all together. Identify axes coordinates matlab ginput mathworks italia. Most graphics files begin with a header containing formatspecific information tags, and continue with bitmap data that can be read as a continuous stream. 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.
Learn more about getpts, ginput, gui, mouse click image processing toolbox. Using ginput in matlab on a specific figure without an. This function behaves similarly to matlab s ginput, with an added ability to customize the cursor color, line width, and line style. The following matlab project contains the source code and matlab examples used for ginput 3d. The figure must have focus before ginput receives input. I am using the ginput function in matlab to use the cursor to collect many x,y coordinates on images. 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. Read, write, and query image files working with image formats.
Below is the code im using, but ginput works slowly even in any circumstances i tried. Older versions% of matlab can copy and paste entirebloc. Custom ginput file exchange matlab central mathworks. Below, i have code for a plot of lines in the x and y directions to form a large grid. Multiview intersection file exchange matlab central.
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. I want to zoom in on an image using the zoom function. Here is a quick overview of my favorite new simulink features. Which is a lot of clutter, not to mention used memory. 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. Just use view to put the axes in the plane you want, the use this function, and it returns in the correct coordinates. Ginput 3d in matlab download free open source matlab. Pointers are handled by the operating system, and are onebit black and white with a 1 bit mask transparent or not. I tested both of them on matlab r20a and they work fine. Matlab returns the coordinates of your selected points. 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. The main function in this tutorial is objfind, openfig, close all. How can i use the ginput function to select a point on an image in matlab along with the zoom function. Net framework must be installed in version 2 or higher in present windows.
Ginput3d allows you to ginput in xy, yz and zx plane of 3d plot, ginput can do that only in xy plane. To choose a point, move your cursor to the desired location and press either a mouse button or a key on the keyboard. Matlab matrix laboratory is a numerical analysis and computing tool for implementation of algorithms, matrix manipulations, plotting of functions and visualizing of data. Calculate height of object matlab answers matlab central. I would like to have a code in which a blank figure will appear and a user can click multiple times in multiple places. Myginput graphical input from mouse with custum cursor pointer. However, when i use the function in the same way in the maltab app designer i encounter the described problem. Rewritten matlab gait analysis code and associated calculators and setup files.
X,y myginputn gets n points from the current axes and returns the x and ycoordinates in length n vectors x and y. How to use matlabs ginput on an image imported by imshow. X,y ginputcn gets n points from the current axes and returns the x and ycoordinates in length n vectors x and y. Getting user input in matlab the use of input, ginput and inputdlg. 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.
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