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## plot3c

version 1.0 (2.2 KB) by

Plots data color coded in 3D.

4.57143
14 Ratings

Updated

FUNCTION PLOT3C(X,Y,Z,V,'MARKER',Title') plots the values in vector v colour coded at the positions specified by the vectors x, y, and z in a 3-D axis system. A colourbar is added on the right side of the figure.

The colorbar strectches from the minimum value of v to its maximum in 9 steps (10 values).
The second last argument is optional to define the marker being used. The default is a point. To use a different marker (such as circles, ...) send its symbol to the function (which must be enclosed in '; see example).

This function is an extension of PLOTC.

Example:
The seismic P-velocity (v) depends on the three parameters porosity (por) and the bulk moduli of the saturating fluid (kf) and the elastic frame (kd). To plot the velocity data as a function of these three parameters use (assuming that all data are given in vectors):

plot3c(por,kd,kf,v,'d','Velocity')

EvilDrW

### EvilDrW (view profile)

I really like plot3c, but I recently ran into problems with the color bar not working right. I changed lines 61-63 to

limits = get(h, 'Limits');
yal=linspace(limits(1),limits(2),10);
set(h,'Ticks',yal);

and this seemed to solve the problems.

Juan

### Juan (view profile)

Thanks for sharing!
very useful..

Huaxi Zheng

### Huaxi Zheng (view profile)

Thanks for sharing!

Jean Paul

### Jean Paul (view profile)

Very nice tool. Would be nice if previous made comments on speed improvements could be implemented. But still a nice tool.

Jul Smith

### Jul Smith (view profile)

GREAT, THANKS!
Another question:
If one want to plot a cross section of those points(xzy), what will be the suitable function?
Sorry for basic question but I have tried to included without good results.
Thx, J

mathworks2011

### mathworks2011 (view profile)

basic but effective.

J G

### J G (view profile)

Hi, I'm new to matlab and I'm sure this is the function I've been looking for! My data are three vectors (coordinates) x, y and z. This is probably a stupid question but how do I define v?

Le

### Le (view profile)

Great !!! That's what I've been searching for a year. Very good job, thank you!

john doe

Jason Lee

it is a nice script for researchers.

Jon Morris

Does exactly what I wanted... had an xyz data file from a calculation, and needed to plot the intensity (z) as a function of x and y. It worked with your *.m file. You've given me faith in my calculation!

igor scardanzan

yes... but very slow indeed !!!
it uses a FOR that is known to be slow !
to be a good code it should plot all point at once with their (variable) colors

jindi li

I like your code,quite appreciate for contribute this
however,the interactive colorbar shift doesn't seem to work
I want to make some modification to your code to enable this,but with no clue
can you help me ?

Tim Hattrell

Good, extreamly useful if you have unstructured x,y,z tripples but very slow if you have more than a couple of thousand data points. I've been using this for plotting CFD dumps and it works well if you use it to take a slice through the data. I've tried to speed it up by having all the points plotted at once but to no avail, somebody with more experteese needs to have a go!

Josef Pronek

very useful - thank you!

Kittipat Bot

I love it, looks fantastic. However,you plot them point by point, that makes it pretty slow. If you can make it faster I believe there should be a lot more people use this function :) Thanks a lot.

jeily cervantes

very good!!