Why do I get the message "Undefined function 'showPointCloud' for input arguments of type 'double'."

Dear all

When I test the simple code in page (<http://www.mathworks.com/help/vision/ref/showpointcloud.html>) to plot 3D point cloud. I get the message

"Undefined function 'showPointCloud' for input arguments of type 'double'.

Error in test_sphere1 (line 9)
showPointCloud([x(:),y(:),z(:)]);"

Why do I get this, I just use the example code:

close all

clc

clear all

numFaces = 600;

[x,y,z] = sphere(numFaces);

figure;

showPointCloud([x(:),y(:),z(:)]);

title('Sphere with the default color map');

xlabel('X');

ylabel('Y');

zlabel('Z');

Thank you!

[Star Strider]

Do you have the Computer Vision System Toolbox installed?

In the Command Window type:

ver

to find the version of MATLAB and all toolboxes you have installed. If you have the Computer Vision System Toolbox, it should be listed.

[Jianhua Ma]

----------------------------------------------------------------------------------------------------
MATLAB Version: 8.4.0.150421 (R2014b)
MATLAB License Number: ••••••
Operating System: Mac OS X  Version: 10.10.1 Build: 14B25 
Java Version: Java 1.7.0_55-b13 with Oracle Corporation Java HotSpot(TM) 64-Bit Server VM mixed mode
----------------------------------------------------------------------------------------------------
MATLAB                                                Version 8.4        (R2014b)
Simulink                                              Version 8.4        (R2014b)
Bioinformatics Toolbox                                Version 4.5        (R2014b)
Communications System Toolbox                         Version 5.7        (R2014b)
*Computer Vision System Toolbox*                        Version 6.1        (R2014b)
Control System Toolbox                                Version 9.8        (R2014b)
Curve Fitting Toolbox                                 Version 3.5        (R2014b)
DSP System Toolbox                                    Version 8.7        (R2014b)
Database Toolbox                                      Version 5.2        (R2014b)
Financial Toolbox                                     Version 5.4        (R2014b)
Fixed-Point Designer                                  Version 4.3        (R2014b)
Fuzzy Logic Toolbox                                   Version 2.2.20     (R2014b)
Global Optimization Toolbox                           Version 3.3        (R2014b)
Image Acquisition Toolbox                             Version 4.8        (R2014b)
Image Processing Toolbox                              Version 9.1        (R2014b)
Instrument Control Toolbox                            Version 3.6        (R2014b)
MATLAB Coder                                          Version 2.7        (R2014b)
MATLAB Compiler                                       Version 5.2        (R2014b)
MATLAB Report Generator                               Version 4.0        (R2014b)
Mapping Toolbox                                       Version 4.0.2      (R2014b)
Neural Network Toolbox                                Version 8.2.1      (R2014b)
Optimization Toolbox                                  Version 7.1        (R2014b)
Parallel Computing Toolbox                            Version 6.5        (R2014b)
Partial Differential Equation Toolbox                 Version 1.5        (R2014b)
Robust Control Toolbox                                Version 5.2        (R2014b)
Signal Processing Toolbox                             Version 6.22       (R2014b)
SimBiology                                            Version 5.1        (R2014b)
SimDriveline                                          Version 2.7        (R2014b)
SimElectronics                                        Version 2.6        (R2014b)
SimHydraulics                                         Version 1.15       (R2014b)
SimMechanics                                          Version 4.5        (R2014b)
SimPowerSystems                                       Version 6.2        (R2014b)
Simscape                                              Version 3.12       (R2014b)
Simulink Coder                                        Version 8.7        (R2014b)
Simulink Control Design                               Version 4.1        (R2014b)
Simulink Design Optimization                          Version 2.6        (R2014b)
Simulink Report Generator                             Version 4.0        (R2014b)
Stateflow                                             Version 8.4        (R2014b)
Statistics Toolbox                                    Version 9.1        (R2014b)
Symbolic Math Toolbox                                 Version 6.1        (R2014b)
System Identification Toolbox                         Version 9.1        (R2014b)
Wavelet Toolbox                                       Version 4.14       (R2014b)

It seems that I have installed it. But this function still doesn't work

[Dima Lisin]

What happens when you type

>> which showPointCloud

[forest tracker]

I got the exactly same question like "Undefined function 'pointCloud' for input arguments of type 'double'." Have you got your problem solved till now?

Answer 1

[Aditya Jain]

What version of MATLAB are you using?

showPointCloud is only available from MATLAB R2014b.

Also as Star mentioned, do you have Computer Vision System Toolbox?

[Jianhua Ma]

Yes, the version I use is MATLAB R2014b. How can I check Computer Vision System Toolbox?

[Image Analyst]

Like Star mentioned, type ver on the command line.

[Jianhua Ma]

I typed the ver command and I find:

Computer Vision System Toolbox Version 6.1 (R2014b)

But "showPointCloud' still cannot work

Answer 2

[Walter Roberson]

I have tested in R2014b and showPointCloud does work.

If ver('Vision') shows the product installed, it is possible that you do not have it licensed. See what license('test','video_and_image_blockset') returns: it should return 1 if you have the product license. Also try

which -all showPointCloud

if the software is installed but there is no license for it you will probably see a note about no license beside it.