Autocad and compressed images problem

Hello,

I have a problem with inserting image files to autocad (version 2002).

My photo is 1.5Gb large so there is a problem to work on it. I thought about
compression and so I made a TIFF JPEG compression with q-factor 4 but...
autocad is not able to read it anyway!

So my wuestion is there maybe someone know what is the problem? Is there any
possibility to made compression which autocad is able to read?

Lipa

 

It wouldn't make a difference. Compressed file have to be decompressed to be
opened. To open such a large file, you need more RAM than the size of the
file, say 2Gb. Can't imagine why such a large photo needs to be inserted
into AutoCAD. Can't it be scaled down in an image editor?
bg

 

It wouldn't make a difference. Compressed file have to be decompressed to be
opened. To open such a large file, you need more RAM than the size of the
file, say 2Gb. Can't imagine why such a large photo needs to be inserted
into AutoCAD. Can't it be scaled down in an image editor?
bg

 

It wouldn't make a difference. Compressed file have to be decompressed to be
opened. To open such a large file, you need more RAM than the size of the
file, say 2Gb. Can't imagine why such a large photo needs to be inserted
into AutoCAD. Can't it be scaled down in an image editor?
bg

 

I often use picture to trace on them with cad, indeed some pictures are to
big and cad has a big problem to generate the screen in the drawing so i
always save the picture for the web format in jpg and reduce the resolution
with photoshop that way it reduced the weight of the file and the insertion
is then possible and generates it like a breeze


Regards

R

 

I also like to point out that with reference lines you have to resize it to
fit the needed output.
then your in buisiness.


R

 

The problem is that it is an orthophotomap and the accuracy is about 14um!!
Even small part of photo is really big - we need such accuracy at all.
ie Microstation reads jpeg compression so there is no problem - autocad
makes me sick with this.

If I will scale it down accuracy will not be enough to select all small
parts on photos.

Lipa

 

I haven't had any problems using a JPG file in autocad. It will
handle TIF, but i don't know if it handles TIF with jpg compression.
I'd guess it probably doesn't, but I have no way to try it as nothing
I have will create a TIF with jpg compression.

I have used large JPG's in autocad, though not as big as you are
trying (more in the 500-600Mb range). But MS does seem to handle them
better than autocad. You are definately pushing the upper limits of
the program. Maybe breaking it into tiles may help.

-Tim

 

Why this posted three times beats me.
Oh, I know why, Our ISP's news servers suck.
bg