The highway plans I refer to below came as TIFs from PennDOT. When I open them in Windows picture and fax viewer they are black linework on white background. The TIFs come into AutoCAD as white linework on black background. AutoCAD says it is a "Bitonal" image and is not adjustable. When I plot my dwg with points and linework over the image the image plots as black lines on white background. The problem is that it takes my printer or printer driver 1/2 hour to process the image.
Is there a better way? The plan section I requested does not fully cover my P.Q. frontage so I will be requesting and ultimately inserting another image.
Paul in PA
I would try opening with 'IrfanView", "increase color depth" do a 'saveas', and try the new image.
No Problem Direct Printing Of Image At Normal Speed
The viwer must reverse the image prior to putting it on the screen. I zoom in and scan around. I can plot any view just not to scale.
I want to plot it to scale from AutoCAD with an overlay of my points and linework.
Right now the image is aligned with curb on an intersecting street to the South and one dwelling on that street. However that dwelling is not the same size as shown on the design plan. An addition to the rear was removed for the 1929 construction, and different additions added. I spent last night in the kitchen of that house with the owner discussing the demolished bridge and abandoned roadway to the South of the house where the old road once was. His deed description has a gore where the road once was, future survey work. The parcel to the East has a call to the SW wing wall of that bridge which controls a common corner with my main PQ. It was a 3 arch stone bridge, photos show no wing wall. I have located remnants of 2 footers, not matching in dimension to notes on the 1929 plan. There are no survey ties or geometry to it so since it was being abandoned it may have just been sketched. Calls on the bridge are 2 22' arches and a central 28' arch, which does not fit with the surveyed footers.
I can live with the snail slow pace but am wondering if there is a better way.
Paul in PA
I open tiff files in the program "PAINT".
When needed I can invert the colors and save as another type of file for use.
Try printing the Tiff image in pdf format. There are some free pdf utilities online. Then convert the pdf (save as) to an image file again; Tiff, GIF, JPG, etc.. Then re-insert the image.