On 24-3-2018 21:18, Sven Littkowski wrote:
> UPDATE
> 
> Having made a small test-run for the transport items that will be, later
> on, inside and around the yellow storage area. Cotton bales and hay
> bales for now, but more to come.
> 

For later correction: the bales intersect the ship.

-- 
Thomas

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Sven Littkowski <I### [at] SvenLittkowskiname> wrote:
> UPDATE
>
> Having made a small test-run for the transport items that will be, later
> on, inside and around the yellow storage area. Cotton bales and hay
> bales for now, but more to come.
>
>
> ---
> Diese E-Mail wurde von AVG auf Viren geprüft.
> http://www.avg.com

That's looking pretty cool so far    :)
For some reason, the way / method it got posted, it doesn't show up as an
in-line image, and it doesn't get listed in the image digest either   :(

Just curious - is it mathematically linked / parameterized so that you can
animate it?

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Yes, I know. The deck at that location goes upwards. But the foreship
locations where the bales are stored (later on), are fully horizontal.
There won't be any cutting. :-)

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Yes, with a little extra work, the wheels and the entire ship can be
animated. But that's not on my list for now. That comes later, much
later. :-)

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On 27-3-2018 1:12, Sven Littkowski wrote:
> Yes, I know. The deck at that location goes upwards. But the foreship
> locations where the bales are stored (later on), are fully horizontal.
> There won't be any cutting. :-)
> 

If you use the trace() function for positioning the bales on the deck, 
you will avoid such problems.

http://wiki.povray.org/content/Reference:Vector_Expressions#Functions


-- 
Thomas

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Thanks. I heard about that function, but have problems to handle it.

But never mind, I have all coordinates of the entire scene in my mind. I
find it difficult to learn to work with so-called WYSIWYG editors, I
hand-code everything. :-)

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UPDATE

The progress continues, and the main deck becomes more and more complete...



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Attachments:
Download 'sl - mississippi paddle-wheel steamer - prow atop side.jpg' (2358 KB)

Preview of image 'sl - mississippi paddle-wheel steamer - prow atop side.jpg'

Le 18-03-27 à 05:28, Sven Littkowski a écrit :
> Thanks. I heard about that function, but have problems to handle it.
> 
> But never mind, I have all coordinates of the entire scene in my mind. I
> find it difficult to learn to work with so-called WYSIWYG editors, I
> hand-code everything. :-)
> 
> ---
> Diese E-Mail wurde von AVG auf Viren geprüft.
> http://www.avg.com
> 

You mostly need to remenber that trace(object, start, direction) use a 
start location and a direction. If you change the last value, you'll 
trace in different directions.

trace(Deck, <PosX, 1000, PosZ>, -y)

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On 27/03/2018 20:04, Alain wrote:
> Le 18-03-27 à 05:28, Sven Littkowski a écrit :
>> Thanks. I heard about that function, but have problems to handle it.
>>
>> But never mind, I have all coordinates of the entire scene in my mind. I
>> find it difficult to learn to work with so-called WYSIWYG editors, I
>> hand-code everything. :-)
>>
>> ---
>> Diese E-Mail wurde von AVG auf Viren geprüft.
>> http://www.avg.com
>>
> 
> You mostly need to remenber that trace(object, start, direction) use a 
> start location and a direction. If you change the last value, you'll 
> trace in different directions.
> 
> trace(Deck, <PosX, 1000, PosZ>, -y)


Even I can use it. ;-)

Use PosX, PosZ to describe a grid with a loop. And check that
   (vlength (Norm)!=0) and do some stuff


Hmm! I had an extra variable:

#declare Inter = trace (Trace_object_,< Pos_x, Pos_y, Pos_z >, z, Norm);

#if (vlength (Norm)!=0)


Then do some stuff.

#end


Alain probably knows and uses a more efficient way of coding it than I 
do/can.


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Regards
     Stephen

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Thanks Alain and Stephen.   :-)

The item is what is to be checked for (like the name of a Declare union,
I would assume).

The first coordinate is from where the search ray is starting?

The second coordinate is towards which direction (destination) the
search ray is heading?

Norm contains the coordinates of a hit?


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