Page 340 - Green - Maritime Archaeology: A Technical Handbook. 2nd ed

Chapter 11: Artifact Drawing 319
Figure 11.15 Drawing showing the basics of an isometric. In this case, a gun carriage is shown.
IX. COMPUTER-AIDED GRAPHICS
The CAD packages that followed the computer revolution provide some interesting options for the archaeologist who wants to illustrate artifacts. These techniques, which have been discussed in Chapter 7, consist of using a computer to draw lines rather than using pen and ink to create object drawings. Alternatively, a computer-aided drawing of an object can be made from a scan, a digital camera photograph, or a scan of a conventional pho- tograph. All three options produce a digital image of the object in a raster format (a format where each point or pixel in the image is individual and unique, if the size of the graphic image is doubled, then each pixel will double in size too). The CAD work will be vector graphics whereby lines,