Tough Questions - Part 3

AutoCAD 2008

5.) When you insert a large raster image into an autocad drawing there is a noticable performance drop, epecially with zooming and panning. Other than setting the IMAGEQUALITY to draft, does anyone know of any other performance tricks/settings that can be used to increase performance?

6.) This question may be case specific to our hardware but I will ask it just in case. At work we have a large format sheet fed OCE scanner to scan drawings. When you use this scanner to scan a drawing to a .tif format and you insert this .tif into an autocad drawing, it produces almost a negative image (where the background is black and the linework comes out whatever color the layer is set to, for example red layer color = red linework) This is the desired effect that I am looking for which is good. My problem is that When you insert a regular .tif image into autocad, the image will appear exactly how the .tif file looks.

For example, if the background is white in the .tif the background will be white when inserted into autocad drawing. My questions is, does anyone know if there is a setting in autocad that can produce a raster image with a black background and linework based on the color of the layer, or is this a setting specifically created by our scanner?

I thank everyone for taking the time to read my questions, and putting the effort to possibly answering them.

6) never heard of that one before I would say that that is a special setting created by your scanner

5) Probably with a better video card and more RAM but I'm not an expert so let's wait till they come and share their knowledge!!!

when i have an large image in any of my drawings, i usually either unload it, or freeze the layer it was put on; until i am ready to work with the image.

When I have a tiff that's fairly large, I just clip out whatever section I need. That increases the speed tremendously.

Hey guys, thank you again for taking the time to help me answer my questions, it is appreciated. I usually reply with a thank you but I never think people who answer my questions ever come back to see the thank you, which I apologize for.