# Addison Collins

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**Content Feed**

Question

How to get X and Y points (or function(s)) from a plotted line

Hello all, So I have a instrument that provides a handful of X and Y points based up on bins from a histogram. I plotted the gr...

2 months ago | 1 answer | 0

### 1

answerIssue plotting streamlines (input in ascending order)

ANSWER: I changed the order in which I created the meshgrid, that fixed things.

2 months ago | 0

| accepted

Question

Issue plotting streamlines (input in ascending order)

Hi all, I am having an issue plotting some streamlines. I get an error when I attempt to plot my streamlines because it uses in...

2 months ago | 1 answer | 0

### 1

answerQuestion

How to rotate velocities and corresponding coordinates

Hello everyone. I am trying to rotate my velocity data 90 degrees clockwise. I attempted using rot(90) a couple of times, but I ...

2 months ago | 1 answer | 0

### 1

answerQuestion

How to set values to NaN when they AREN'T within the given indices

Hello, I am attempting to set several values in a large matrix to NaN based on indices that I do not want to have NaN values. I...

3 months ago | 1 answer | 0

### 1

answerQuestion

How to end loop after key is press

Hello everyone, I am attempting to make it so I can have as many iterations as I want in the for loop. I want to choose when I ...

3 months ago | 1 answer | 0

### 1

answerQuestion

How to find the point of highest concentration (plot)

Hello all, I am attempting to find the location of highest datapoint density. I intend on removing datapoints that fall outside...

3 months ago | 1 answer | 0

### 1

answerQuestion

Find matrix (meshgrid) indices near plotted vector (points)

Hi, I am attempting to grab several datapoints that are near a vector of points (represented by a line in the plot). I am unsu...

4 months ago | 1 answer | 0

### 1

answerQuestion

Rotate matrices about a point

Hi everyone, I am trying to rotate the matrix 'V' about the (X,Y) coordinate (-2.117,-8.053) 20 degrees clockwise. I plot the u...

4 months ago | 2 answers | 0

### 2

answersQuestion

How to Rotate a pcolor plot 20 degrees

Hello all, I have taken velocity data from a PIV experiment with a probe at 2 angles, 0 degrees and 20 degrees (see photos). It...

4 months ago | 0 answers | 0

### 0

answersQuestion

Measuring distance in 2D plot

Hello everyone, I am attempting to measure the horizontal length between two almost parallel streamlines. I would like to sim...

4 months ago | 1 answer | 0

### 1

answerQuestion

Draw a rectangle in a plot based upon ZERO values as the boundaries

Hello, I have some PIV data that I have plotted (see images). There is a large rectangle of 0 values that represents a probe th...

4 months ago | 0 answers | 0

### 0

answersQuestion

Plotting streamlines from a dataset (x,y,u,v)

I am attempting to plot streamlines from some location and velocity data provided in a .txt. I have x, y, u, v where x & y are p...

5 months ago | 1 answer | 0

### 1

answerQuestion

Adding images to reach a final composite.

Hello all, I am attempting to add several photos such that I can see the distribution of particles in a laser sheet as they exit...

5 months ago | 1 answer | 0