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30 Nov 2022 23:32:59 EST (-0500)
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From: Ton
Subject: Sailing ship Balclutha
Date: 29 Mar 2022 05:05:00
Message: <web.6242cb0b1ff1cfb3ad1330e67597fb06@news.povray.org>
After a long hot summer, with the nights getting longer, and the days getting
colder, it is time to start a new project. Maybe I'm overreaching myself, but
the bar has to be higher every time.
I decided to do the Balclutha, a steel-hulled, full-rigged ship, built in
Glasgow in 1886.
She is now a museum ship in San Fransisco.
(https://en.wikipedia.org/wiki/Balclutha_(1886))
The Library Of Congress website has detailed plans and photos of this ship, so I
have all the information to model this ship. Here is the start:

I've modeled one side of the hull, in Blender, exported the .obj-file, and
created a mesh2-file.

Cheers
Ton.


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From: Thomas de Groot
Subject: Re: Sailing ship Balclutha
Date: 29 Mar 2022 07:57:37
Message: <6242f431$1@news.povray.org>
Op 29-3-2022 om 11:02 schreef Ton:
> After a long hot summer, with the nights getting longer, and the days getting
> colder, it is time to start a new project. Maybe I'm overreaching myself, but
> the bar has to be higher every time.
> I decided to do the Balclutha, a steel-hulled, full-rigged ship, built in
> Glasgow in 1886.
> She is now a museum ship in San Fransisco.
> (https://en.wikipedia.org/wiki/Balclutha_(1886))
> The Library Of Congress website has detailed plans and photos of this ship, so I
> have all the information to model this ship. Here is the start:
> 
> I've modeled one side of the hull, in Blender, exported the .obj-file, and
> created a mesh2-file.
> 
> Cheers
> Ton.

Good start. How did you model the hull: nurbs?

-- 
Thomas


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From: Ton
Subject: Re: Sailing ship Balclutha
Date: 29 Mar 2022 19:05:00
Message: <web.62438fccbeadc5ebad1330e67597fb06@news.povray.org>
>
> Good start. How did you model the hull: nurbs?
>
> --
> Thomas

Bedankt Thomas.
I used Blender, and transformed the obj output in mesh2, with normals.

Cheers
Ton.


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From: Thomas de Groot
Subject: Re: Sailing ship Balclutha
Date: 30 Mar 2022 02:33:04
Message: <6243f9a0$1@news.povray.org>
Op 30/03/2022 om 01:01 schreef Ton:
>>
>> Good start. How did you model the hull: nurbs?
>>
>> --
>> Thomas
> 
> Bedankt Thomas.
> I used Blender, and transformed the obj output in mesh2, with normals.
> 

Indeed, but what I mean: /within/ Blender, how was the hull surface 
modelled? I do not use Blender so I thought maybe it was generated with 
the help of a nurbs tool, which is not available in my Silo package. 
 From my experience, hulls are not very easy to model without it I 
think, or some similar tool.

-- 
Thomas


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From: Ton
Subject: Re: Sailing ship Balclutha
Date: 30 Mar 2022 06:10:00
Message: <web.62442c60beadc5ebad1330e67597fb06@news.povray.org>
Thomas de Groot <tho### [at] degrootorg> wrote:
> Op 30/03/2022 om 01:01 schreef Ton:
> >>
> >> Good start. How did you model the hull: nurbs?
> >>
> >> --
> >> Thomas
> >
> > Bedankt Thomas.
> > I used Blender, and transformed the obj output in mesh2, with normals.
> >
>
> Indeed, but what I mean: /within/ Blender, how was the hull surface
> modelled? I do not use Blender so I thought maybe it was generated with
> the help of a nurbs tool, which is not available in my Silo package.
>  From my experience, hulls are not very easy to model without it I
> think, or some similar tool.
>
> --
> Thomas

With the help of the hull profile plans I can determine the X, Y, and Z
coordinates of the hull. X is forward-backwards, Y is up-down, and Z is
left-right (or port-starboard). I start with a plane I subdivide when necessary.
In that way I work down the hull. When exporting to obj-file I (well, blender)
triangulates those rectangles. You see the result, quite convincing.
I have mirrored the hull, added the keel, which are povray objects from
roundedge.inc.

Cheers
Ton.


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From: Ton
Subject: Re: Sailing ship Balclutha
Date: 30 Mar 2022 06:15:00
Message: <web.62442c92beadc5ebad1330e67597fb06@news.povray.org>


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From: Ton
Subject: Re: Sailing ship Balclutha
Date: 30 Mar 2022 06:15:00
Message: <web.62442cf7beadc5ebad1330e67597fb06@news.povray.org>


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From: Ton
Subject: Re: Sailing ship Balclutha
Date: 30 Mar 2022 06:15:00
Message: <web.62442d1dbeadc5ebad1330e67597fb06@news.povray.org>


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From: Thomas de Groot
Subject: Re: Sailing ship Balclutha
Date: 30 Mar 2022 07:44:54
Message: <624442b6$1@news.povray.org>
Op 30-3-2022 om 12:09 schreef Ton:
> Thomas de Groot <tho### [at] degrootorg> wrote:
>> Op 30/03/2022 om 01:01 schreef Ton:
>>>>
>>>> Good start. How did you model the hull: nurbs?
>>>>
>>>> --
>>>> Thomas
>>>
>>> Bedankt Thomas.
>>> I used Blender, and transformed the obj output in mesh2, with normals.
>>>
>>
>> Indeed, but what I mean: /within/ Blender, how was the hull surface
>> modelled? I do not use Blender so I thought maybe it was generated with
>> the help of a nurbs tool, which is not available in my Silo package.
>>   From my experience, hulls are not very easy to model without it I
>> think, or some similar tool.
>>
>> --
>> Thomas
> 
> With the help of the hull profile plans I can determine the X, Y, and Z
> coordinates of the hull. X is forward-backwards, Y is up-down, and Z is
> left-right (or port-starboard). I start with a plane I subdivide when necessary.
> In that way I work down the hull. When exporting to obj-file I (well, blender)
> triangulates those rectangles. You see the result, quite convincing.
> I have mirrored the hull, added the keel, which are povray objects from
> roundedge.inc.
> 
> Cheers
> Ton.

OK, that is pretty much as I modelled my VOC ship (Dutch East Indies 
Company) many years ago. I also used the profile plans in a similar way.

http://www.irtc.org/ftp/pub/stills/2005-04-30/direpass.jpg

This one was an earlier version (2005) built in Moray.

-- 
Thomas


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From: Thomas de Groot
Subject: Re: Sailing ship Balclutha
Date: 31 Mar 2022 02:24:57
Message: <62454939$1@news.povray.org>
Maybe you know DELFTship? I have been using its free version:

https://www.delftship.net/delftship/

It is very comprehensive.

-- 
Thomas


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