Question

how to create a diagonal matrix with the semibandwidth of 4

how to create a matrix like this: <</matlabcentral/answers/uploaded_files/66612/%E6%8D%95%E8%8E%B7.GIF>>

2 years ago | 1 answer | 0

Question

About PID program block issue of simulink

This is a simple step response in simulink： <</matlabcentral/answers/uploaded_files/63330/1.png>> The parameters of the...

3 years ago | 1 answer | 0

Answered

Delaunay problem of a concave object

Hello,Yose. Have you solved the problem of meshing the 3d concave model?

Delaunay problem of a concave object

Hello,Yose. Have you solved the problem of meshing the 3d concave model?

3 years ago | 0

Question

How to triangulate 3D concave model?

I've tried to mesh 3D concave model with Delaunay Triangulation but the shape of the model has changed.Any other ways to get be...

3 years ago | 0 answers | 0

Question

How to import .asc file into matlab as pointcloud data?

How to import .asc file into matlab as pointcloud data?

3 years ago | 1 answer | 0

Question

In the simulation of the control system with a observer,there will be a error .

In the simulation of the control system with a observer,there will be a error .How to solve it? <</matlabcentral/answers/uplo...

3 years ago | 0 answers | 0

Question

How to output STL format flie

I have a point matrix p whose size is 3x98065;the triangulation matrix t whose size is 3x196124 ; How to output the data as a S...

3 years ago | 1 answer | 0

Question

How to input a 294192x294192 array?

I want to get a 294192x294192 zero array:M=zeros(294192,294192) However I got error as follows: Requested 294192x294192 (644...

3 years ago | 1 answer | 0

Question

How to do offset of a STL model when the face normal are very similar to each other?

<</matlabcentral/answers/uploaded_files/47102/%E9%A1%B6%E7%82%B9%E4%B8%8E%E9%9D%A2%E6%B3%95%E5%90%91.PNG>> When the face norm...

3 years ago | 0 answers | 0

Question

cylinder model rebuilt with delaunay triangulation and freeboundary

I got a 3D stl cylinder model,I import the stl file into matlab,and got a matrix p of all the coordinates of the model vertex.A...

3 years ago | 0 answers | 0

Question

how to get the surface patch after delaunay triangulation

I have a set of point cloud ,after delaunay triangulated these points,I got a connectivity of all the points.What can I do to ge...

3 years ago | 1 answer | 0

Question

How to translate 3d-scanned point clouds to .stl format

I scanned a piece with a 3D scanner,and got a set of point clouds.Now I want to triangulate the point cloud with only the patche...

3 years ago | 1 answer | 0

Question

How to do triangulation after insert a new point

As is shown in the image,a new point D(0.5,0.5,0) is interpolated on edge OB.As result,the 2 original triangles are divided into...

3 years ago | 1 answer | 0

Question

after inserting a point on the edge of a triangle,how to generate new triangles

I drew a cubic which was imported into matlabt.Than,I got p(the coordinate of all the vertexes or points),tnorm(all the face nor...

3 years ago | 0 answers | 0

Question

how to check the length of stl model edge in matlab

I drew a cubic whose lengeh is 1mm formating stl.After importing the stl model into matlab,I got p(the coordinate of all the ver...

3 years ago | 1 answer | 0

Question

How to call .dll file in Geomagic Studio into matlab

How to call .dll file in Geomagic Studio into matlab

3 years ago | 1 answer | 0

Question

Any good way to get an intersection of 3planes?

I have three faces,but their face normals are very simlar to each other,and they are almostly paralleled to each other. a=[-0.9...

3 years ago | 0 answers | 0

Question

how to calculate the accurate inversion value of a matrix whose row decimal are very similar to each

a=[-0.996194973121394 -4.18489862633171e-06 -0.0871525989867842; -0.996194973121394 -4.18489862656107e-06 -0.087152598986...

3 years ago | 1 answer | 0

Question

How to interpolate 3D plane by a three-dimensional facenormal and random pointclouds?

ptCloud = pointCloud(3*rand(1000,3,'single')); %create 1000 random points in a 1x1x1 box Vertex=[0,0,0]; ...

4 years ago | 0 answers | 0