POV-Ray : Newsgroups : povray.general : Zoomin_inc.inc, mod, int, help needed Server Time
30 Dec 2024 17:15:49 EST (-0500)
  Zoomin_inc.inc, mod, int, help needed (Message 1 to 4 of 4)  
From: StephenS
Subject: Zoomin_inc.inc, mod, int, help needed
Date: 21 Apr 2013 10:25:01
Message: <web.5173f68e47741b706477c72f0@news.povray.org>
I would like to print a 3' x 7' door at a 1 to 1 scale.
My printer outputs 203mm x 270mm, about 1.3300 ratio.

Useing Slime's Zoomin_inc.inc I can chop up a camera statement into 7x7 printed
papers, resulting into about a 1 to 1 scale.

---
#declare Camera7x7 =
#if (frame_number>0 | frame_number<50)
Set_Zoom_Area(
 CameraLocation,
 CameraLookAt,
 concat("+sc",str(mod(frame_number-1,7)/7,1,4),
        " +sr",str(int((frame_number-1)/7)/7,1,4),
        " +ec",str(mod(frame_number,7)/7,1,4),
        " +er",str(int(frame_number/7+1)/7,1,4)
       )
)
Update_Camera_Zoom()
#end
---

Since the ratio of door to printed output is not the same, at this scale I don't
use the last column of pictures. Which is good because the last column is wrong!

I want to go from
0.0 to 1/num.... num-1/num to 1.0
for each column
and then repeat for each row

Suggestions?

Stephen S


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From: StephenS
Subject: Re: Zoomin_inc.inc, mod, int, help needed
Date: 21 Apr 2013 11:35:01
Message: <web.517406e2a4309fa36477c72f0@news.povray.org>
"StephenS" <nomail@nomail> wrote:
....
> #declare Camera7x7 =
> #if (frame_number>0 | frame_number<50)
> Set_Zoom_Area(
>  CameraLocation,
>  CameraLookAt,
>  concat("+sc",str(mod(frame_number-1,7)/7,1,4),
>         " +sr",str(int((frame_number-1)/7)/7,1,4),
>         " +ec",str(mod(frame_number,7)/7,1,4),
>         " +er",str(int(frame_number/7+1)/7,1,4)
>        )
> )
> Update_Camera_Zoom()
> #end
> ---
....
for comparison, 3x3 works with this

---
#declare Camera3x3 =
#if (frame_number=1)
Set_Zoom_Area(CameraLocation, CameraLookAt, "+sc0.0 +sr0.0 +ec0.3333 +er0.3333")
Update_Camera_Zoom()
#end
#if (frame_number=2)
Set_Zoom_Area(CameraLocation, CameraLookAt, "+sc0.3333 +sr0.0 +ec0.6666
+er0.3333")
Update_Camera_Zoom()
#end
#if (frame_number=3)
Set_Zoom_Area(CameraLocation, CameraLookAt, "+sc0.6666 +sr0.0 +ec1 +er0.3333")
Update_Camera_Zoom()
#end
#if (frame_number=4)
Set_Zoom_Area(CameraLocation, CameraLookAt, "+sc0.0 +sr0.3333 +ec0.3333
+er0.6666")
Update_Camera_Zoom()
#end
#if (frame_number=5)
Set_Zoom_Area(CameraLocation, CameraLookAt, "+sc0.3333 +sr0.3333 +ec0.6666
+er0.6666")
Update_Camera_Zoom()
#end
#if (frame_number=6)
Set_Zoom_Area(CameraLocation, CameraLookAt, "+sc0.6666 +sr0.3333 +ec1
+er0.6666")
Update_Camera_Zoom()
#end
#if (frame_number=7)
Set_Zoom_Area(CameraLocation, CameraLookAt, "+sc0.0 +sr0.6666 +ec0.3333 +er1")
Update_Camera_Zoom()
#end
#if (frame_number=8)
Set_Zoom_Area(CameraLocation, CameraLookAt, "+sc0.3333 +sr0.6666 +ec0.6666
+er1")
Update_Camera_Zoom()
#end
#if (frame_number=9)
Set_Zoom_Area(CameraLocation, CameraLookAt, "+sc0.6666 +sr0.6666 +ec1 +er1")
Update_Camera_Zoom()
#end
#if (frame_number = 0 | frame_number >= 10)  // use unmodified camera
 camera {Camera3x3};
#end
---
carefull of word wrap

I would like a more easy to change way of presenting the information:-)

Stephen S


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From: Christian Froeschlin
Subject: Re: Zoomin_inc.inc, mod, int, help needed
Date: 21 Apr 2013 12:55:30
Message: <51741a02@news.povray.org>
StephenS wrote:
> 
> Useing Slime's Zoomin_inc.inc I can chop up a camera statement into 7x7 printed
> papers, resulting into about a 1 to 1 scale.

I don't know about this include, but couldn't you simply render
one large image and split the result for printing afterwards? Either
manually or using image processing software such as image magick.


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From: StephenS
Subject: Re: Zoomin_inc.inc, mod, int, help needed
Date: 21 Apr 2013 15:45:01
Message: <web.5174414aa4309fa352d6acf0@news.povray.org>
Christian Froeschlin <chr### [at] chrfrde> wrote:
....
> I don't know about this include, but couldn't you simply render
> one large image and split the result for printing afterwards? Either
> manually or using image processing software such as image magick.

I have done this for sizes up to 3x3 printed pages.
The memory footprint stays the same with each bigger print size, the render
animation just runs longer.

Both work, I would like to have a choice which to choose.

Stephen S


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