Professional Interests: Geodetic calculations

Question

Select first n nonzero elements in each row of matrix

Hello How to select first n nonzero elements from each row? If I have matrix A, and I want result like B (three nonzero elemen...

4 months ago | 2 answers | 0

Question

Search and select points form each quadrant

Hello How to select two or any number of nearest points from each quadrant? I have point T and I want to select only two neare...

7 months ago | 1 answer | 0

Question

Speed up for loop in voronoi?

Hello I need to calculate area of Voronoi polygons for around 3000 points. I use VoronoiLimit function to bound it (specific re...

8 months ago | 0 answers | 0

Question

Matrix creation combining vectors

Hello I have two vectors V1 and V2 which I want to combine in one matrix M (size V1*V2,2): V1=[1 2 3 4 5 6]; V2=[5 10 15]; ...

9 months ago | 1 answer | 0

Question

Put area of Voronoi polygon to exact location

Hello How to match area of each voronoi polygon with location of points used to create that polygon. I calculate area of each ...

1 year ago | 0 answers | 0

Question

Voronoi polygons distance between points

Hello I have set of 2D points and after creation of voronoi polygons I want to calculeate distance between poit from one polygo...

1 year ago | 1 answer | 1

Question

Double sum of this formula

Hello I need help about this formula: _{E_n}=\sum_{k=1}^{n}\left ( _{d_k} \sum_{l=0}^{1-k}_{K_l}*{sin^{2l}{b_n_-_1}}\right ) ...

1 year ago | 1 answer | 0

Question

Sorting columns in classes

Hello I have table T = Distance ddfi ddla _________ ________ ______ 0.25445 0.0...

2 years ago | 2 answers | 0

Question

Multiplying vector members without repeating

Hi I need to multiply values from one vector in all combinations. For example Lets say that vector A=[1 2 3 4]' I need to get...

2 years ago | 1 answer | 0

Answered

Print point numbers with velocities

If someone else need it, here is answer for my question: % Plot 2D point velocities and point numbers % input 2D coordin...

Print point numbers with velocities

If someone else need it, here is answer for my question: % Plot 2D point velocities and point numbers % input 2D coordin...

3 years ago | 0

Answered

Print point numbers with velocities

Thanks, but this is not what I am looking for. I have points with x and y coordinates, and their velocities. I want to plot vel...

Print point numbers with velocities

Thanks, but this is not what I am looking for. I have points with x and y coordinates, and their velocities. I want to plot vel...

3 years ago | 0

Question

Print point numbers with velocities

Hello I have data like this: PN x y vx vy R397 6358409 4976666 -0.35822 0.13043 R356 6358725 4981623 -0.31862 0.02681 R372 ...

3 years ago | 3 answers | 0