Cuting nurbs primitive

[bonachela]

Hi,

I`m reading Mastering Maya 3 and on one tutorial the author says: start with a sphere, cut the mouth area and cut it on the half, well it must me a simple question but I have no idea about what he means by 'cut'... is he talking about trim for the mouth? and about cuting half of the sphere..? I went to component mode but I can't realize how to do it...
any help here????

thanks a lot

[pennywise]

I think you need to project a curve on the sphere surface and then use the trim tool.

[bonachela]

Ok, I can use the trim tool to make the mouth hole, but how about cuting half sphere??

[pennywise]

Try creating a NURBS plane and then use Intersect Surfaces and the trim tool.

[artisan00]

in both cases i think it probably means delete patches.....i dont see the point in using trim if you dont have to. for the mouth you could "cut " the tip of the sphere to make a hole, (and if you look in the piocture in the book, thats where the mouth hole is) , and then youd cut the whole sphere in half the same way.
to select patches, RMB ( i think, but it may be left click hold..im not sure) on the faces selection mask button ans make sure patches is x'd . then you can select individual nurbs patches and delet em

In reply to:
Hi,

I`m reading Mastering Maya 3 and on one tutorial the author says: start with a sphere, cut the mouth area and cut it on the half, well it must me a simple question but I have no idea about what he means by 'cut'... is he talking about trim for the mouth? and about cuting half of the sphere..? I went to component mode but I can't realize how to do it...
any help here????

thanks a lot

[bonachela]

I think this is the right way to do it... I will try it!
Thanks everyboby for your help!

[perseus2]

In reply to:
in both cases i think it probably means delete patches.....i dont see the point in using trim if you dont have to. for the mouth you could "cut " the tip of the sphere to make a hole, (and if you look in the piocture in the book, thats where the mouth hole is) , and then youd cut the whole sphere in half the same way.
to select patches, RMB ( i think, but it may be left click hold..im not sure) on the faces selection mask button ans make sure patches is x'd . then you can select individual nurbs patches and delet em

[quote]
In reply to:
Hi,

I`m reading Mastering Maya 3 and on one tutorial the author says: start with a sphere, cut the mouth area and cut it on the half, well it must me a simple question but I have no idea about what he means by 'cut'... is he talking about trim for the mouth? and about cuting half of the sphere..? I went to component mode but I can't realize how to do it...
any help here????

thanks a lot

[/quote]

No, no. You can't select nurbs patches and delete them. Won't work.
To cut the hole for the mouth, position the sphere so that the North Pole is around where you want the mouth hole. RMB click on the model and select "isoparm" from the marking menu that appears. LMB click on one of the "latitude" isoparms, and drag the yellow indicator to where you want to define your hole. Select "edit surfaces -> detach". (Make sure you have "keep originals - off" in the option box). This will detach the cap from the sphere, turning it into a separate object that you can delete, making the hole. Follow the same procedure to split the head in half - select the "equator" isoparm and edit surfaces->detach. I'm not familiar with the tutorial, but it sounds like this is what they're getting at.

[artisan00]

perseus:
what you said makes sense of course....much easier..

my bad