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

Jianhua Ma さんによって質問されました 2015 年 1 月 21 日
最新アクティビティ Walter Roberson
さんによって 回答されました 2016 年 7 月 3 日
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!

  4 件のコメント

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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
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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)
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It seems that I have installed it. But this function still doesn't work
What happens when you type
>> which showPointCloud
I got the exactly same question like "Undefined function 'pointCloud' for input arguments of type 'double'." Have you got your problem solved till now?

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2 件の回答

回答者: Aditya Jain
2015 年 1 月 21 日

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?

  3 件のコメント

Yes, the version I use is MATLAB R2014b. How can I check Computer Vision System Toolbox?
Like Star mentioned, type ver on the command line.
I typed the ver command and I find:
Computer Vision System Toolbox Version 6.1 (R2014b)
But "showPointCloud' still cannot work

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回答者: Walter Roberson
2016 年 7 月 3 日

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.

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