Hi Michelle,
It's me again. I just thought of something else:
If you think of a digital image as a 2d plane lying on the ground, then
you can also think of the color/intensity values as displacement off of
the ground plane. The brighter the pixel, the more displacement. This is
a fairly common use of images in 3d computer graphics and maybe that's
what you're talking about.
If this is what you ment by creating STL files from 2d images, it's not
that difficult to do. Contact me directly if this is where you're headed.
Sorry if I misunderstood your original question.
On Fri, 1 Oct 1999, Steven C. Beck wrote:
>
> Hi Michelle,
>
> 1.) The extensions ".tif" and ".bmp" designate digital image (bit
> map) formats.
>
> These file formats represent color/intensity values on
> a pixel by pixel bases so that your computer/printer/outputdevice
> can display 2d images.
>
> TIF (actually TIFF) stands for Tagged Image File (Format) and is
> a widely used and very robust image file format.
>
> BMP is primarily a PC format but seems to be used a little
> more frequently now than it used to be.
>
> 2.) The extension ".dxf" designates an Autodesk (AutoCAD) format that
> was originally designed to contain 2d CAD data but was extended
> a while back to include 3d surface information.
>
> 3.) TIF and BMP files (or any 2d image for that matter) can be used by
> a designer/engineer as a modeling aid when creating 3d geometry
> that might be implied in the image. But these files in and of
> themselves do not contain anything that would provide useful data
> for rp systems.
>
> The DXF files (if they actually contain 3d information) can be
> read by just about any 3d modeling program can be converted
> into whatever output format you wish . . . STL being one of
> them.
>
> Hope this helps.
>
> On Fri, 1 Oct 1999, Michelle Soltysik wrote:
>
> > Dear RP list-
> > How can a drawing with a file extension of .tif, .bmp, or .dxf be converted
> > into .stl? And is one easier to convert than the other?
> >
> > Thank you in advance,
> > Michelle Soltysik
> >
> >
> > Michelle D. Soltysik
> > Industrial & Manufacturing Engineering
> > The Pennsylvania State University
> > 207 Hammond Building
> > University Park, PA 16802
> > Telephone: (814) 863-2686
> >
> >
> > For more information about the rp-ml, see http://ltk.hut.fi/rp-ml/
> >
>
> Steven Craig Beck | beck@galt.iaf.uiowa.edu
> 73 EMRB Image Analysis Facility | http://www.uiowa.edu/~image
> University of Iowa | 319.335.6713 (phone)
> Iowa City, IA 52242 | 319.335.6710 (fax)
>
>
> For more information about the rp-ml, see http://ltk.hut.fi/rp-ml/
>
Steven Craig Beck | beck@galt.iaf.uiowa.edu
73 EMRB Image Analysis Facility | http://www.uiowa.edu/~image
University of Iowa | 319.335.6713 (phone)
Iowa City, IA 52242 | 319.335.6710 (fax)
For more information about the rp-ml, see http://ltk.hut.fi/rp-ml/
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