Raster Dwgs: Attach vs Load
I have three drawings which incorporate BMP and TIF raster images. These drawings were originally created in AutoCad 14 using the cut to clipboard and paste to dwg method. To the best of my knowledge they have always worked fine until now. I am unable to view or plot the raster images unless the original raster image files are in the same directory as the drawing. This is a problem since I have to provide theses drawing files to a governmental entity (for their records archive) and they specifically prohibits any xrefs. It appears that the images are "loading" as opposed to being "attached" as part of the drawing. What exactly do these terms mean and is there any way I can fix this problem. HELP! - I am in a time crunch to make this submittal to them.
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Mark,to my (still limited) knowledge there are the following ways to use a bitmap image in a dwg file.1. using a tool like Image Enabler or Adeko Raster or similar: basically this stores the full path to where the image is located on your disk into the dwg file, plus some extra settings. When this image needs to be displayed on screen (or printed) then a request is sent to e.g. Image Enabler to generate an appropriate image for the bitmap file that can be found at c:\somepath\somefile.bmp.2. using the _INSERTOBJ command (or Insert...Object from the menu) to insert the image as an OLE object. Basically this means that the image is stored inside the dwg file, in its original format. The hosting application (e.g. BricsCad or AutoCad) does not know how to handle it, so when it needs to be processed, a request is send to the windows operating system to see if an application is installed on the machine that knows how to handle the image.3. using copy/paste or copy/paste special. With this method the bitmap is incorporated in the dwg file either as a Picture (metafile), a DIB (Device Independent Bitmap) or a Bitmap.The 3rd method seems to be what you are looking for.Best regards,Hans
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