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Stack Overflow for Teams is a private, secure spot for you and your coworkers to find and share information. It contains only values of zero's and ones, where the 1's represent the structure and 0's the "air". I want to visualize the structure in MATLAB and then run an algorithm on it and put an overlay on it, let's say in the color red. I already read the MathWorks tutorials and they didn't help.

I tried using the set command, but it fails completely saying for every property I try "invalid root property". There's an excellent utility called vol3dby mathworks employee Joe Conti.

I think it addresses your visualization needs exactly - give it a try. There is a new version here though. I'm not sure I understand the second part of the question, but here's how you visualize a 3D volume using isosurfaces I'm using the fluid-flow example data. Learn more. Matlab 3d volume visualization and 3d overlay Ask Question. Asked 9 years, 10 months ago. Active 4 years ago. Viewed 15k times. The question is pretty much the title. So to be more precise: How do i visualize the 3d volume.

## Volume Visualization

Plot a line in the 3d visualization as an overlay? Amro k 23 23 gold badges silver badges bronze badges. Active Oldest Votes. Junuxx Ofek Shilon Ofek Shilon 9, 2 2 gold badges 46 46 silver badges 80 80 bronze badges. Amro Amro k 23 23 gold badges silver badges bronze badges.

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### Volume Visualization

You are now following this question You will see updates in your activity feed. You may receive emails, depending on your notification preferences. Jaehoon Jeong on 4 Aug Vote 0. Commented: Andrei Bobrov on 5 Aug I am a new Matlab user. I would like to calculate a volume of thing looking like my attachment below.There is a function behind every Matlab code that performs a computational task, and here is how you can create your own function that will help you go faster while working with Matlab.

We will be creating a simple one-line code function in this post, just to help you have a glimpse into how creating functions in Matlab. Here is what you do when writing your own function in Matlab. Here is how we need to structure our Matlab function.

You need to copy the whole code above and paste it in the file, Save the file with the name vol. And Matlab will call the function vol, compute the volume of the 3D rectangle and display the following. If you are working in an exercise where you will often need this volume, you can just use this function instead of actually computing manually the volume each time you need it.

It might not look very important in this exercise, but when you have a complex operation you need to perform often in Matlabcreating a function doing it automatically will be time-efficient and necessary. Using this technique, you can create more complex functions in Matlab and have an easier life while using them. Learn more about functions in Matlab. Save my name, email, and website in this browser for the next time I comment.

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Search MathWorks. MathWorks Answers Support. Open Mobile Search. Scarica una trial. You are now following this question You will see updates in your activity feed. You may receive emails, depending on your notification preferences. Calculate the volume of shape descibed by 3d points. Lucy on 4 Aug Vote 1.

Commented: Caleb Williams on 12 Jul Given a set of 3d data points, without using the Image Processing Toolbox, what is the best method for working put the volume of the object described by the points? Answers 1. Yu Jiang on 11 Aug Vote 3. Cancel Copy to Clipboard. Edited: Yu Jiang on 11 Aug Hi Lucy. The volume of that object can be approximated by the volume of its convex hull. In mathematics, the convex hull or convex envelope of a set X of points in the Euclidean plane or Euclidean space is the smallest convex set that contains X.

See the following link for more details. The Matlab function convhull can be used to find the convex hull of a given dataset and can return respectively the area or the volume of a 2D-Polygon or of a 3D-Polyaedrons.

You can find more information on this function at the following address:. Here is one example illustrating how you can use this command to compute a volume:. The variable V is the volume of the convex hull.Sign in to comment. Sign in to answer this question. Unable to complete the action because of changes made to the page. Reload the page to see its updated state. Choose a web site to get translated content where available and see local events and offers.

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You may receive emails, depending on your notification preferences. Plotting in 3D volume. Amadeus on 11 Dec Vote 0. Accepted Answer: Walter Roberson. Now I want to visualize it in 3D volume.

**Volume bounded by surface rotated in Matlab**

But how can I do it? I saw too many questions about this problem. But I could not make use of any them. Could you please suggest me a basic solution to my problem? I only need to unite all of those slices and plot them in 3D volume. I will be really grateful for your help. Accepted Answer. Walter Roberson on 11 Dec Cancel Copy to Clipboard. Should the locations be treated as point-like objects, or should they have a definite volume e.

You have three spacial dimensions and one data dimension the data value at each location. How do you want to represent this 4th dimension? Across for x, up for y, perspective for slice number, and what for the data value? Walter, thank you so much for your detailed reply. Sorry that I will not be able to give you a good, sophisticated answer because of my ignorance, but let me try: What I am doing is, currently I am viewing my mapping slice by slice:.

These slices will construct a brain mapping.Sign in to comment. Sign in to answer this question. Unable to complete the action because of changes made to the page. Reload the page to see its updated state. Based on your location, we recommend that you select:. Select the China site in Chinese or English for best site performance. Other MathWorks country sites are not optimized for visits from your location.

Toggle Main Navigation. Cerca Answers Clear Filters. Answers Support MathWorks. Search Support Clear Filters. Support Answers MathWorks. Search MathWorks. MathWorks Answers Support. Open Mobile Search. Scarica una trial. You are now following this question You will see updates in your activity feed. You may receive emails, depending on your notification preferences. Fatma Elzahraa Ahmed on 30 Jan Vote 0. Commented: Fatma Elzahraa Ahmed on 31 Jan For this volume, I have specific coordinates that reflects some features and I want to highlight these coordinates e.

I searched and found a code like that:. The problem is that, this code works with gray scale image. When I tried to generalize it to the volume I got something with the size: x,y,z,3 through:. Is this generalization right? Answers 1. Walter Roberson on 31 Jan Cancel Copy to Clipboard. Yes, that should work, if you use it together with a routine such as vol3d v2 from the File Exchange.

Other viewer routines might prefer that the RGB be the 3rd dimension rather than 4th, but vol3d prefers RGB to be the 4th dimension. Fatma Elzahraa Ahmed on 31 Jan Thank you very much. I tried it in this form. But I get a rendering results without a capability to move through the slices.

In addition, the colored areas do not appear in red.

### Plotting in 3D volume

I am I miss something? I suggest that you have a look in the File Exchange at the various slice routines. I tried another way.Sign in to comment. Sign in to answer this question. Unable to complete the action because of changes made to the page. Reload the page to see its updated state. 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:. Select the China site in Chinese or English for best site performance. Other MathWorks country sites are not optimized for visits from your location.

Toggle Main Navigation. Search Answers Clear Filters. Answers Support MathWorks. Search Support Clear Filters. Support Answers MathWorks. Search MathWorks. MathWorks Answers Support. Open Mobile Search.

Trial software. You are now following this question You will see updates in your activity feed. You may receive emails, depending on your notification preferences. Calculate the volume of shape descibed by 3d points. Lucy on 4 Aug Vote 1. Commented: Caleb Williams on 12 Jul Given a set of 3d data points, without using the Image Processing Toolbox, what is the best method for working put the volume of the object described by the points?

Answers 1. Yu Jiang on 11 Aug Vote 3. Cancel Copy to Clipboard. Edited: Yu Jiang on 11 Aug Hi Lucy. The volume of that object can be approximated by the volume of its convex hull.

In mathematics, the convex hull or convex envelope of a set X of points in the Euclidean plane or Euclidean space is the smallest convex set that contains X.

See the following link for more details. The Matlab function convhull can be used to find the convex hull of a given dataset and can return respectively the area or the volume of a 2D-Polygon or of a 3D-Polyaedrons. You can find more information on this function at the following address:. Here is one example illustrating how you can use this command to compute a volume:. The variable V is the volume of the convex hull.

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3d volume matlab