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Get section of a sphere remaining after putting constraints?

Posted 7 years ago

Hi,

I want to find out the section of a sphere remaining after putting constraints in terms of cartesian planes. How it can be done ?

For example, if I have a sphere of r = 1, and I put the constraint z > 0 on it, simple imagination would suggest that it leaves half the sphere as defined by limits ? ? [0,?/2] and ? ? [0,2?]. Adding the constraint x > 0 leaves a quarter of the sphere with ? ? [0,?/2] and ? ? [0,?] and so on.

I want to achieve the same using Mathematica for more complex planes/constraints and find out the (?,?) limits for remaining portions of sphere.

Will appreciate any suggestions

thanks

POSTED BY: S G
3 Replies
Posted 7 years ago
POSTED BY: Rohit Namjoshi
Posted 7 years ago
POSTED BY: Michael Helmle
Anonymous User
Anonymous User
Posted 7 years ago

Help: ref/ClipPlanesStyle works by planes, graphics 3D has other tricks too (include ones that operate on invisible object having textures on their surface)

Help ref/RegionFunction applies to plotting and exclusions

the best way to do what your thinking depends on what shapes and exclusions you ultimately want (be careful of what you ask for)

primarily, i would suggest reviewing Plot and Graphics3D to see which of the many features that do clipping, exclusions, and other things have the ultimate effect you seek

for example, if i said "use clipping" i would have no idea if "all of your specifications" might be possible

POSTED BY: Anonymous User
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