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Bitmaps won't display

PostPosted: Fri Jan 25, 2019 4:16 am
by ggogan
Sometimes I insert Bitmap and see the outline but not the image. They are turned on under Display.
Many times - most times it does work fine.
I suspected the resolution of a jpg, so resaved as gif and then tiff to lower res but still not good.
Thanks for any thoughts.

Re: Bitmaps won't display

PostPosted: Fri Jan 25, 2019 11:29 am
by joshhuggins
Welcome to the forum Geoff!

I would stick with the JPG format for images as it's probably the best supported format for Datacad, especially vs GIF and TIF. You can use most any image editing program to reduce the resolution of your images and still save to the JPG format.

You may want to check your DCADWIN.INI file (located in your Datacad install folder. Open with Notepad to read it's contents) to see what the following values are set at for Bitmaps. Below is what mine is set to.

Code: Select all[Bitmaps]
MaxSize=512
MinSize=0.001

Re: Bitmaps won't display

PostPosted: Fri Jan 25, 2019 2:38 pm
by Neil Blanchard
I would suggest PNG - compressed like JPG, but with lower loss.

Re: Bitmaps won't display

PostPosted: Fri Jan 25, 2019 4:09 pm
by joshhuggins
Do your PNG's come in correctly Neil? Ours always look darker than the original image in Datacad. I usually prefer PNG files as well, but never found a way around this without having to edit the original images contrast / brightness level.

Re: Bitmaps won't display

PostPosted: Sat Jan 26, 2019 11:37 am
by David Porter
I use PNGs and JPGs and I haven't found any tonal differences between the two. The PNGs, to my eye, seem to come in a little crisper than JPGs.

Re: Bitmaps won't display

PostPosted: Mon Jan 28, 2019 7:55 am
by Neil Blanchard
I have not noticed problems with PNG's in DatCAD, on the screen. Our printers tend to be darker than the image, so I sometimes have to lighten them up in IrfanView before inserting them.

Re: Bitmaps won't display

PostPosted: Tue Feb 25, 2020 7:17 pm
by ggogan
Hello all,
Geoff Gogan again. I had forgotten that I posted that question about Bitmaps.
I had to recently upgrade to Win 10 with a complete new install so had to go back and reset all.
I'm sure I have not recalled all of them yet
Just wanted to thank you for your replies as I just had the same problem
and editing the ini file worked. Thanks
and best to all the old Datacad guys out there.
That's all I use and I'm thankful to have it and that they are continuing to support and update.
-Geoff