3D APP, How to plot y=0

05292019, 05:30 PM
Post: #1




3D APP, How to plot y=0
Hello
I want to plot a parallel plane to ZX plane (Y= 1, ...) or to ZY plane (X= 1, ...). Just to see the intersection with a surphace like FZ1= X^2 + Y^2 Could you give me some help? Thanks Toni 

05292019, 07:06 PM
Post: #2




RE: 3D APP, How to plot y=0
Since \( y=0 \) is not an equation that can be represented by a function (of \(x\) and \( y\) ), you will not be able to graph such a surface.
Graph 3D  QPI  SolveSys 

05292019, 10:20 PM
(This post was last modified: 05292019 11:27 PM by Voldemar.)
Post: #3




RE: 3D APP, How to plot y=0
Try this:
FZ1(X,Y) = Y/(1E499) 

05292019, 11:15 PM
Post: #4




RE: 3D APP, How to plot y=0
Good trick;
and FZ(X,Y)=(Y2)/(1E499) for Y=2 Etc Etc. 

05292019, 11:24 PM
Post: #5




RE: 3D APP, How to plot y=0
Equation of plane is
ax + by + cz + d = 0 Need plane y = 0 0x + 1y + 0z +0 = 0 0z = y z = y/0 Replace zero with 1E499 

05302019, 12:41 AM
Post: #6




RE: 3D APP, How to plot y=0
It works. Very nice.
Thanks very much to all Toni 

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