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Obtain 3D shape cross section
Sorting model vertices by z-position is not a practical solution. There is no reason to assume that model vertices are anywhere...

7 meses hace | 0

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How to project a line on a surface?
This isn't quite the same, but it's close enough to be refined if the goals required it. We are given a triangulated surface in...

7 meses hace | 0

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Cylindrical ring of implicit surfaces
I think part of the unevenness is because you're using the colon operator to set up your meshes. When you do that, you need to ...

7 meses hace | 0

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How to calculate the coordinates of the overlaped points over a polygon?
Plot the data and look at it. The data points don't appear to be anywhere near the polygons. % the data load trialdataofcoord...

7 meses hace | 0

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how do I convert my patch function into a surface function
This is the same question: https://www.mathworks.com/matlabcentral/answers/1957-trisurf-to-surf https://www.mathworks.com/matl...

7 meses hace | 0

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trisurf to surf
The surf() tool works on gridded data. There's no reason to assume that triangulated F,V data is constrained to a grid. Is the...

7 meses hace | 0

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The points read with stlread are different from when the same points are saved with stlwrite and read again.
When writing to an STL from vertex data generated in the workspace, you're losing precision. Your vertex data in memory is repr...

7 meses hace | 1

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Filling with colour the space inside object
I didn't notice that there were multiple questions posted on this. Here's my response to a different thread about the same proj...

7 meses hace | 0

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getting this error with stlwrite
I think @Rami Ali Al-Khulaidi is about right in an oblique way. If you want the object geometry, you already have it. You don'...

7 meses hace | 0

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Get vertices that create surface mesh from trisurf
It really sounds like this question isn't the question that's been asked. You don't need to get the vertices from trisurf(), be...

7 meses hace | 0

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How can I create a 3D solid body from a surface plot (x y z data points) and export it (preferably as STL) to a CAD software?
Well, nobody caught this one. OP was likely working off of examples that used stlwrite() from FEX #20922, but since R2018b, MATL...

7 meses hace | 0

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Triangle centroid
Another example for emphasis: unzip stepholecube.stl.zip % for the forum % so you have some triangles in 3D T = stlread('st...

7 meses hace | 0

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How can I analyze stl files and then redraw them in matlab? I need to write some code
For context: https://www.mathworks.com/matlabcentral/answers/405855-how-do-i-redraw-a-picture-given-to-me-using-its-data-poin...

7 meses hace | 0

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How do I redraw a picture given to me using its data points that I've found using the curve fitting app?
I don't think anyone needs this answer now, but I came here from a related question that was more interesting, and got caught by...

7 meses hace | 0

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Changing from 2D plot to 3D plot and to STL file
Oof. I spent way too much time on trying to get the triangulation to work on this, especially considering that nobody needs it ...

7 meses hace | 0

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how to turn .m into .stl if i have already a .m file
I'm pretty sure I see where this was going, so let's go there. There are three problems: We're creating way too much data. Yo...

7 meses hace | 0

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How to Export MatLab (fsurf) into .stl file please? [surf2stl not working]
Let's start with a basic example: % an example hfs = fsurf(@(x,y) 5*besselj(1,hypot(x,y))); axis equal % reshape the fsurf d...

7 meses hace | 0

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Is it possible to rotate a rectangle?
The rotate() function only applies to certain types of graphics objects, and rectangle() objects are not included. You can stil...

8 meses hace | 1

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tiff file tags not saved
I think the main problem here is that you're not closing the file. There are also some annoyances you'll run into if you're try...

8 meses hace | 2

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Unsharp Masking producing different results (imsharpen)
The error is largely due to order of operations and numeric class. You're working with a uint8 image. Tools like imfilter() wi...

8 meses hace | 1

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Unsimultaneously-changing color semi-transparent surfaces
You're trying to create 2002 surface objects. It's not that they're timed wrong; it's just that you've nuked yourself with grap...

8 meses hace | 0

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MATLAB to CAD file
See also: An example of saving a gyroid as a solid volume (using both isosurface() and isocaps()) https://www.mathworks.com/ma...

8 meses hace | 0

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How to export a 3D surface (gyroid) as an stl file
See the full example here: https://www.mathworks.com/matlabcentral/answers/1732640-how-to-export-a-3d-surface-gyroid-into-an-st...

8 meses hace | 0

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How to export a 3D surface (gyroid) into an STL file
FEX surf2stl() accepts gridded data, as would be used with surf(), but isosurface(), isocaps() produce FV data. This can be exp...

8 meses hace | 0

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Writing a .stl file from a plot
The given code does a ton of things in duplicate. I'm going to start from scratch. % PARAMETERS %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%...

8 meses hace | 0

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how can i apply otsu threshold on "A ‟ component of filtered LAB color space?
The unspoken part of the question here is the fact that A and B are zero-centered and the data distribution is typically asymmet...

8 meses hace | 0

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How can i convert an Indexed Image To a Binary Image ?
The attached image is a JPG; as such, it is not an indexed image. So we now have two interpretations of the question: "The ima...

8 meses hace | 0

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HOW CAN I CONVERT HSI TO BINARY IMAGE WITH THRESHOLDING
See: https://www.mathworks.com/matlabcentral/answers/397100-hsi-thresholding-mat-lab-code

8 meses hace | 0

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Conversion to grayscale image from binary image
If your binary image is a logical image, as returned from im2bw() or imbinarize(), then it can be converted to a numeric class u...

8 meses hace | 0

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Programmatically create histograms like Color Thresholder
In this answer I give a couple ways to create colorcoded histograms for multichannel images the long way. In the comments, I de...

9 meses hace | 0