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DGM


Last seen: Today Active since 2015

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Hi, I'm nobody. I don't belong here, but I have nothing better to do. Matlab used to be part of my work. Now it's part of my hobbies. That's pretty sad, really.

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Answered
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...

6 dagen ago | 0

Submitted


Generate synthetic test images of resistors
A tool to generate synthetic images of resistors. Depending on how cruel you are, you may find this useful for creating student...

30 dagen ago | 2 downloads |

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Answered
finding longest length
The written description doesn't really describe what the example describes. The example returns the last true element from only...

ongeveer een maand ago | 0

Answered
How to adjust the color bar in an image histogram?
If we are to answer the question directly: % you have an RGB image inpict = imread('peppers.png'); % imhist() cannot plot a...

ongeveer een maand ago | 0

Answered
how to represent the purple color by a string value
See also: https://www.mathworks.com/matlabcentral/fileexchange/48155-convert-between-rgb-and-color-names https://www.tutorialr...

ongeveer een maand ago | 0

Answered
slicing 3D stl file to 2D series of image
If the goal is to produce raster images as output, and your slices are uniformly-distributed, then I suppose that one way would ...

ongeveer een maand ago | 0

Answered
Create triangular mesh
In order to fill the hole, you need three vertices and you need them in the correct direction. Your edge segments aren't in a c...

ongeveer een maand ago | 0

Answered
How to trim the non-manifold triangle off the stl file?
I'd agree with Bruno on this. Especially if it's just a small fix on a single file, it's easier and quicker to just throw it in...

ongeveer een maand ago | 0

Answered
How to export 3D sphere at stl format
If you have gridded xyz data which you can feed to surf(), you can use surf2stl(). https://www.mathworks.com/matlabcentral/file...

ongeveer een maand ago | 0

Answered
Constrain a Delaunay Triangulations With a Surface?
The documentation for delaunayTriangulation() indicates that constrained triangulation is only supported for 2D inputs. If the ...

ongeveer een maand ago | 0

Answered
colored elevation map from STL file
A simple example unzip pringle_top.stl.zip T = stlread('pringle_top.stl'); trisurf(T); shading flat; view(10,33) axis equ...

ongeveer een maand ago | 0

Answered
Can I get an .stl from a spreadsheet?
Surf2stl() expects gridded data unambiguously defining a surface. All you have is a list of scattered points. The way the data...

ongeveer een maand ago | 0

Answered
How can i plot this pic by matlab ??
It looks like an upside-down representation of HSV with some random unknown extra line. I'm going to ignore it, since it looks ...

ongeveer een maand ago | 0

Answered
Generating voxels for stl files
See also: https://www.mathworks.com/matlabcentral/answers/217754-stl-to-matlab-coordinates-conversion

ongeveer een maand ago | 0

Answered
Cross sections of 3D surface (stl)
See also: https://www.mathworks.com/matlabcentral/answers/2175386-surface-area-at-given-hight-of-an-stl-file

ongeveer een maand ago | 0

Answered
Extract information from .stl file
For example: unzip sphere_20.stl.zip % a sphere with a radius of 15 T = stlread('sphere_20.stl'); % get the bounding box...

ongeveer een maand ago | 0

Answered
3d Model view
Since this was already in Meshlab, Filters Menu -> Normals Curvatures and Orientation ->Reorient all faces coherently. If you h...

ongeveer een maand ago | 0

Answered
why my 3D image is not extruded in 3D software?
The object height is clearly unit-scale. It's never changed. c = im2double(bw); % it's unit-scale. d = imgaussfilt3(c,4); %...

ongeveer een maand ago | 0

Answered
how to use stlwrite function options
This obviously refers to FEX #20922. Assuming that the data is gridded, such as could be given to surf(), then: [x y z] = sphe...

ongeveer een maand ago | 0

Answered
What we need to be doing is ignore subtraction of slopes of A.stl, which are too steep...
If I'm gonna guess, I might as well invest in it. unzip saddles.zip % these two files have directly correlated vertex lists ...

ongeveer een maand ago | 0

Answered
Determine the maximum height and maximum width of the cross-sectional section from the stl file
Obtain the sectional geometry: https://www.mathworks.com/matlabcentral/answers/2175386-surface-area-at-given-hight-of-an-stl-fi...

ongeveer een maand ago | 0

Answered
converting a .stl file of 3D polyhedron into a .mat file
If the goal is to convert the object into a volumetric image, then: https://www.mathworks.com/matlabcentral/answers/217754-stl-...

ongeveer een maand ago | 0

Answered
How to read 3D mesh STL file
If your goal is to create a DiscreteGeometry object (for the PDE toolbox), then importGeometry() is what you'd use, but otherwis...

ongeveer een maand ago | 0

Answered
Efficient algorithm for plotting edges detect in a triangular mesh
If you are reading your data from an STL and can represent it as a triangulation object, then this can be simplified tremendousl...

ongeveer een maand ago | 0

Answered
How to get the angles across a 3D surface?
I think this is what was meant. unzip pringle_top.stl.zip % for the forum % an STL file T = stlread('pringle_top.stl'); ...

ongeveer een maand ago | 0

Answered
How to obtain normals from faces?
The easy way would be to use the triangulation class, or since we're pre-R2013a, use TriRep(). The following example was tested...

ongeveer een maand ago | 0

Answered
CAD model cutting slices
Depending on what is meant by "cut a model" means: Find the 2D sectional geometry at a given altitude: https://www.mathworks.c...

ongeveer een maand ago | 0

Answered
How does stlread work?
It looks like you edited the variable names in the function, and then you called the function with no arguments. Don't mess wit...

ongeveer een maand ago | 0

Answered
stlread returns different numbers of vertices/points
As far as I know (and I might be wrong), there weren't STL reader/writer tools in the base toolbox until R2018b. At least that'...

ongeveer een maand ago | 0

Answered
Over 1000 faces when importing stl file to matlab
I thought about this one, and maybe there's an answer. Maybe we're not talking about "faces" as in getting individual triangles...

ongeveer een maand ago | 0

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