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Re: [udig-devel] GeoTiff fast render
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Hi
Thanks Jody for your answer.
I have just one more question. Udig has an tiling cache right? is that cache only on raster image? not for shapes?
Mayby i misunderstanding something but i'm quit sure that i have been read that udig
has been remove shapefilerenderer on 1.2 version. am i right?
Regaards
Kokkonen
> Perhaps you can try prepairing your data; a simple solution would be to dump
> them all into a single folder and use the image moasic wizard. It should
> create a shapefile listing each file; and use that shapefile as an index to
> help with performance.
>
> Other than that you should consider the tradeoff of disk speed / cpu power
> when preparing your data for any purpose. Including display as a background
> layer in uDig.
>
> There is also a lot you can do with the format of the image, in addition to
> the compression, internal tiling you mention uDig also responds well to
> overlays.
>
> --
> Jody Garnett
>
> On Friday, 1 April 2011 at 7:25 AM, Juho Kokkonen wrote:
> > Hi
> >
> > I have a tricky situation. I use geotiff files on my udig and i have a lot
> of them (about 20 geotiff files). Each file has an size of 30mb. So this way
> i've got 20 layers on my udig software.
> >
> > Well if i zoom or pan a map all my layers disappear to map and then comes
> one by one back (yes i now udig use each layer a own render thread). well
> because my layers are a big and they are a many this is a slow oparation and
> causes a lot of white screen each pan or zoom.
> >
> > So i was wondering that what i do wrong because i have understand that
> udig is powerfull gis toolkit.
> >
> > Do i have to handling my geotiff pictures like compress or tiling?
> >
> > Do i have to create own renderer of them?
> >
> > Or do i have to use some software to creating a one gigant big shp file?
> > So i can use shapefilerenderer? and how i use it?
> >
> > I hope u guys getting my idea and could help me!
> >
> > Thanks
> >
> > Kokkonen
> > _______________________________________________
> > User-friendly Desktop Internet GIS (uDig)
> > http://udig.refractions.net
> > http://lists.refractions.net/mailman/listinfo/udig-devel
> >
>
