POV-Ray : Newsgroups : povray.advanced-users : UV mapping docs confusion Server Time: 27 Jun 2019 03:59:05 GMT
  UV mapping docs confusion (Message 1 to 4 of 4)  
From: Mike Horvath
Subject: UV mapping docs confusion
Date: 19 Nov 2016 23:23:32
Message: <5830def4$1@news.povray.org>
http://wiki.povray.org/content/Reference:UV_Mapping

The docs say, "cone, cylinder : mapping is the same as the lemon object 
listed below, however, keep in mind that a true cone is not a cylinder."

This is confusing because the lemon has a base, spindle and cap and I am 
not sure the cylinder does too. Can someone explain what this means? Thanks.


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From: Mike Horvath
Subject: Re: UV mapping docs confusion
Date: 19 Nov 2016 23:44:22
Message: <5830e3d6$1@news.povray.org>
On 11/19/2016 6:23 PM, Mike Horvath wrote:
> http://wiki.povray.org/content/Reference:UV_Mapping
>
> The docs say, "cone, cylinder : mapping is the same as the lemon object
> listed below, however, keep in mind that a true cone is not a cylinder."
>
> This is confusing because the lemon has a base, spindle and cap and I am
> not sure the cylinder does too. Can someone explain what this means?
> Thanks.

I was able to figure out what the base, spindle and cap are, but it took 
me a while to do so. Could the docs be improved somehow?


Mike


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From: Jim Holsenback
Subject: Re: UV mapping docs confusion
Date: 20 Nov 2016 11:16:39
Message: <58318617$1@news.povray.org>
On 11/19/2016 6:44 PM, Mike Horvath wrote:
> On 11/19/2016 6:23 PM, Mike Horvath wrote:
>> http://wiki.povray.org/content/Reference:UV_Mapping
>>
>> The docs say, "cone, cylinder : mapping is the same as the lemon object
>> listed below, however, keep in mind that a true cone is not a cylinder."
>>
>> This is confusing because the lemon has a base, spindle and cap and I am
>> not sure the cylinder does too. Can someone explain what this means?
>> Thanks.
>
> I was able to figure out what the base, spindle and cap are, but it took
> me a while to do so. Could the docs be improved somehow?

i try to honor developers wording when adding to docs ... perhaps 
spindle wouldn't have been /my/ choice but after looking the term up 
(for additional clarification) i decided it was safe.

base (beginning or bottom) spindle (middle or axis) cap (end or top) is 
the way i rationalized the passage. additionally there are also two more 
clues in the lemon object description that mention cylinder. that is ... 
in the beginning passage and the very end (see also cone) ... unless 
there is ton of confusion i'm leaning towards leaving it as is


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From: Mike Horvath
Subject: Re: UV mapping docs confusion
Date: 20 Nov 2016 11:27:02
Message: <58318886$1@news.povray.org>
On 11/20/2016 6:16 AM, Jim Holsenback wrote:
> i try to honor developers wording when adding to docs ... perhaps
> spindle wouldn't have been /my/ choice but after looking the term up
> (for additional clarification) i decided it was safe.
>
> base (beginning or bottom) spindle (middle or axis) cap (end or top) is
> the way i rationalized the passage. additionally there are also two more
> clues in the lemon object description that mention cylinder. that is ...
> in the beginning passage and the very end (see also cone) ... unless
> there is ton of confusion i'm leaning towards leaving it as is
>

Using those terms is fine. Just tell the reader what they mean.

Mike


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