Hi James, >If anyone has any information on the extent to which remotely sensed images >(or even aerial photographs) have been used in the place of map products >for >carrying out a Space Syntax analysis of urban areas I would be most >grateful I have used an aerial photographs for parts of Cairo in building me axial model, it is very good in time saving and in accuracy. The base map I used was a redrawn vector map of an aerial map. In fact it does not matter as you are only using it as a background for your axial map. You can import the image file into your CAD package and draw the axial map on top of it. Always follow the rule of fewest and longest set of lines. good luck with your map. Mohamed Salheen Edinburgh College of Art, 79 Grassmarket,Building 6, Edinburgh, EH1 2HG, United Kingdom Tel: 0044 131 221 6280 Fax: 0044 131 221 6157 _________________________________________________________________________ Get Your Private, Free E-mail from MSN Hotmail at http://www.hotmail.com.