How to indicate this data.?

http://www.fileconvoy.com/dfl.php?id=g75b89554ede6461199922508637ab5789f8c54f52 http://www.fileconvoy.com/dfl.php?id=g0786e6527970376a9992250871fb1ba5953a9f513

This are two 3D data files..

 point = dlmread('N3d.txt');
 plot3(point(:,1),point(:,2),point(:,3),'r.')
 rotate3d on

 point = dlmread('3d.txt');
 plot3(point(:,1),point(:,2),point(:,3),'g.')
 rotate3d on

I am reading this both using above code.

Now, line image created by N3d.txt have space between it if we compare it with 3d.txt file on same graph.

So, how to differentiate that space with another colour..? (I want to indicate it with another colour)

Answer 1

[Cedric]

Try with this:

 figure(1) ;
 clf ;
 hold on ;
 rotate3d on ;

 point = dlmread('N3d.txt');
 plot3(point(:,1),point(:,2),point(:,3),'r.')

 point = dlmread('3d.txt');
 plot3(point(:,1),point(:,2),point(:,3),'g.')

[Lalit Patil]

Oh sorry...

I change my code above..

But not like this.. I want to indicate difference between two lines, which is space gap.

[Cedric]

Then you'll have to define what "difference" means to you. Do you want to fit lines? Compute some average euclidean distance? Anything else?

[Lalit Patil]

Yes, first i want ti fit lines, so they will be overlapped.

Then if they are far away of 3 pixels maximum from each other then allow them, otherwise indicate them.

so, i have to compare each first integer digit of N3d.txt file with 3d.txt file and if they are not matched at least three times then remeber that value, finally merge all values and indicate them on graph.

This thing i have to do..

[Cedric]

You'll find plenty of tools for fitting lines (just look up for fit line 3d for example) and for computing euclidean distance between points/lines, but how do you define the "dimension" of a pixel in what you are trying to do?

[Lalit Patil]

Ok.. I have done a fitting using iterative closest point algorithm. So, they are getting overlap on each other, and giving rotational and translational parameters. overlapped image is attached here,

http://www.fileconvoy.com/dfl.php?id=g5da0b929e550f4fc9992251197cc269378599062a

And maximum allowable euclidean distance is 3 between two rows.