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How to plot a surface in 3D space from 4 points

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Katerina F
Katerina F 2017-8-7
评论： Adam 2017-8-9
Hello, I would like to plot a flat, vertical, surface in Matlab that is passing through the points A=(3.5,0,0), B=(0,8.59,0), C=(3.5,0,100), D=(0,8.59,100). Could you please help me with this? Thank you, K.

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KSSV
KSSV 2017-8-7
编辑：KSSV 2017-8-8
A=[3.5,0,0] ;
B=[0,8.59,0] ;
C =[3.5,0,100] ;
D = [0,8.59,100] ;
coor = [A ; B; D; C ] ;
fill3(coor(:,1),coor(:,2),coor(:,3),'r', 'FaceAlpha', 0.5)
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Jan
Jan 2017-8-8
This works fine under R2016b:
fill3(coor(:,1),coor(:,2),coor(:,3),'r', 'FaceAlpha', 0.5)
Please explain, what "does not work" mean.
Katerina F
Katerina F 2017-8-8
Thanks. It works. Probably I was applying it in a wrong way and it was showing me an error.

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John BG
John BG 2017-8-7
Hi Katerina
this is John BG <mailto:jgb2012@sky.com jgb2012@sky.com>
while
A=[3.5,0,0]
B=[0,8.59,0]
C=[3.5,0,100]
D=[0,8.59,100]
P=[A;B;C;D]
X=P(:,1);Y=P(:,2);Z=P(:,3);
h1=patch('XData',X,'YData',Y,'ZData',Z,'EdgeColor','green','FaceColor',[.2 .8 .2],'LineWidth',2)
.
delivers a bow tie .
.
if you swap points order, B with A .
P=[B;A;C;D]
.
.
then one gets the sought flat vertical surface.
if you find this answer useful would you please be so kind to consider marking my answer as Accepted Answer?
To any other reader, if you find this answer useful please consider clicking on the thumbs-up vote link
thanks in advance
John BG
<mailto:jgb2012@sky.com jgb2012@sky.com>
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