comp.lang.idl-pvwave archive: archive » Re: JPEG2000 Tiling Examples?

Home » Public Forums » archive » Re: JPEG2000 Tiling Examples?

Show: Today's Messages :: Show Polls :: Message Navigator
E-mail to friend

Re: JPEG2000 Tiling Examples? [message #54434 is a reply to message #54319]

Fri, 08 June 2007 03:49

Steven Houston
Messages: 5
Registered: November 2005

Junior Member

mgalloy@gmail.com wrote:
> On Jun 6, 7:32 am, David Fanning <n...@dfanning.com> wrote:
>> What I want to do is use the tiling feature to create
>> an IDLgrImage that I can use as a texture on a polygon.
>> I'm not sure *exactly* what I want. I just know that the
>> original image is VERY big, and I thought to speed up the
>> process by using lower resolution tiles as a stand in until
>> the full resolution was absolutely required.
>
> I have an article about basic widget program that tiles an IDLgrImage
> (but not a texture on a polygon):
>
> http://michaelgalloy.com/2006/04/15/idlgrimage-tiling-in-idl -62.html
>
> Mike
> --
> www.michaelgalloy.com
>

As Mike mentioned you cannot use a tiled IDLgrImage as a texture map on
an IDLgrPolygon.

If this doesn't rule out the use of a tiled IDLgrImage, then search the
IDL Help for "Preloading Tiles". At the bottom of that page there is a
section on how to load an entire low resolution version of your image.
This will be displayed until you read in the full resolution tiles.

Cheers,
Steve.

Report message to a moderator

[Message index]

		Re: JPEG2000 Tiling Examples? By: Michael Galloy on Thu, 07 June 2007 07:32
		Re: JPEG2000 Tiling Examples? By: Gaurav on Thu, 07 June 2007 00:19
		Re: JPEG2000 Tiling Examples? By: Michael Galloy on Wed, 06 June 2007 06:52
		Re: JPEG2000 Tiling Examples? By: David Fanning on Wed, 06 June 2007 06:32
		Re: JPEG2000 Tiling Examples? By: Steven Houston on Fri, 08 June 2007 03:49
		Re: JPEG2000 Tiling Examples? By: Gaurav on Mon, 18 June 2007 02:58

Previous Topic:	FSC_color and loadct clashing
Next Topic:	Re: Yikes! Time for a blow-out party!

-=] Back to Top [=-

[ Syndicate this forum (XML) ] [

] [

]

Current Time: Wed Dec 03 15:10:45 PST 2025

Total time taken to generate the page: 0.80446 seconds