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How to calculate tiled image width???????

boxui

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  • »boxui« ist der Autor dieses Themas

Beiträge: 16

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1

Montag, 30. Juni 2014, 05:54

How to calculate tiled image width???????

Hi,

I want to manually generated xml when images is cut by krpano tools

First ,in "multires.config":

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# multiresolution settings 
multires=true 
tilesize=512 
levels=auto 
levelstep=2 
maxsize=auto 
maxcubesize=auto 
leveldownload=auto


when i set a pic 12000*6000 then it generated :

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<image type="CUBE" multires="true" tilesize="512" progressive="false"> 
<level tiledimagewidth="3820" tiledimageheight="3820"> 
<cube url="jiulong2.tiles/mres_%s/l4/%v/l4_%s_%v_%h.jpg" /> 
</level> 
<level tiledimagewidth="1910" tiledimageheight="1910"> 
<cube url="jiulong2.tiles/mres_%s/l3/%v/l3_%s_%v_%h.jpg" /> 
</level> 
<level tiledimagewidth="956" tiledimageheight="956"> 
<cube url="jiulong2.tiles/mres_%s/l2/%v/l2_%s_%v_%h.jpg" /> 
</level> 
<level tiledimagewidth="512" tiledimageheight="512"> 
<cube url="jiulong2.tiles/mres_%s/l1/%v/l1_%s_%v_%h.jpg" /> 
</level> 
<mobile> 
<cube url="jiulong2.tiles/mobile_%s.jpg" /> 
</mobile> 
</image>


yes, i guess it may calculated by this: image cube(3820) / levelstep(2),then add a 512 level at last (if tilesize<tiledimagewidth<tilesize*2)

But when i set a pic 10000*5000 then it generated :

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<image type="CUBE" multires="true" tilesize="512" progressive="false"> 
<level tiledimagewidth="3184" tiledimageheight="3184"> 
<cube url="jiulong3.tiles/mres_%s/l3/%v/l3_%s_%v_%h.jpg" /> 
</level> 
<level tiledimagewidth="1536" tiledimageheight="1536"> 
<cube url="jiulong3.tiles/mres_%s/l2/%v/l2_%s_%v_%h.jpg" /> 
</level> 
<level tiledimagewidth="768" tiledimageheight="768"> 
<cube url="jiulong3.tiles/mres_%s/l1/%v/l1_%s_%v_%h.jpg" /> 
</level> 
<mobile> 
<cube url="jiulong3.tiles/mobile_%s.jpg" /> 
</mobile> 
</image>




At first level: it set "tiledimagewidth=3184" and is ok

At second level:it set "tiledimagewidth=1536",how it calculate?????? in my understanding,it will be 3184/2=1592

At third level: it set "tiledimagewidth=768" and it look like ok(1536*2=768)

At last ,in my understanding,it will generated the last level like this:

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<level tiledimagewidth="512" tiledimageheight="512">


But why not generate actually ？？？？

thx!

Dieser Beitrag wurde bereits 3 mal editiert, zuletzt von »boxui« (30. Juni 2014, 07:52)

klaus.krpano

Administrator

Beiträge: 13 499

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2

Donnerstag, 3. Juli 2014, 11:47

Hi,

there is the (by default enabled) adjustlevelsizes setting:
http://krpano.com/tools/kmakemultires/co…djustlevelsizes

This setting will automatically adjust each level size make them better dividable by the tilesize - to avoid too small/narrow tiles - they would be inefficient in several ways (loading and rendering).

That means if you want to be able to calculate the level sizes (btw - why?), then this setting need to be disabled.

Best regards,
Klaus

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