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Cylinder

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Cylinder

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18 Feb 2007 (Updated )

This function will construct a 3d cylinder connecting two points (centers)

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Description

This function constructs a cylinder connecting two center points

Usage :
[Cylinder EndPlate1 EndPlate2] = Cylinder(X1+20,X2,r,n,'r',closed,lines)
   
Cylinder-------Handle of the cylinder
EndPlate1------Handle of the Starting End plate
EndPlate2------Handle of the Ending End plate
X1 and X2 are the 3x1 vectors of the two points
r is the radius of the cylinder
n is the no. of elements on the cylinder circumference (more--> refined)
cyl_color is the color definition like 'r','b',[0.52 0.52 0.52]
closed=1 for closed cylinder or 0 for hollow open cylinder
lines=1 for displaying the line segments on the cylinder 0 for only
surface

Typical Inputs
X1=[10 10 10];
X2=[35 20 40];
r=1;
n=20;
cyl_color='b';
closed=1;

NOTE: There is a MATLAB function "cylinder" to revolve a curve about an
axis. This "Cylinder" provides more customization like direction and etc

Acknowledgements

This file inspired Cone.

MATLAB release MATLAB 7.0.1 (R14SP1)
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Comments and Ratings (5)
23 Aug 2013 Kuifeng  
28 May 2012 Damith Jinasena  
04 Sep 2007 karl marx

Its very useful to me and all.

23 Mar 2007 Germain Aoun

Nice work ! Error corrected and no glitches here !
Is there a way to detect whether a point (X;Y;Z) belongs (is inside) to the volume delimited by a cylinder generated by your function ?
Thanks

22 Feb 2007 Charles Warren

I get inconsistent results depending on whether I set closed. I think the translation code for the endcaps (lines 82-90) away from the origin, the offsets are wrong (cut and paste typos probably). Line 83 should end with +X1(1); line 85 should end with +X1(3); line 87 should end with +X1(1); line 89 should end with +X1(3). When I make those changes, I get consistent plots for closed=0,1.

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