Lecture Notes

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• Analysis
• Color modes
• Output considerations: pixels vs resolution

• Resizing
• Changing color modes

• Bitmap and Raster graphics
• Not scaleable
• Vector graphics
• Scaleable
• Specification of a line, (beginning and end points are stored in the database).

• Using Photoshop for analysis
• One can start with any form of documentation (scanned image, digital photo, ect.).
• Arial photo, plans, sandborn maps, topo maps, elevations, sections, ect.
• Using these sources, one can then consider any type of architectural analysis:
• Building massing
• Façade proportion and geometry
• Circulation
• Structure
• Mechanical systems
• Basics of system: start with an image (input)----manipulate that image----print/display the new diagram.
• Important considerations of output: Paper versus Screen.
• This is important because media has different resolutions available for output
• Screens: 72 dpi (dot per inch), although the new screens have 100 dpi.
• Paper: 300 dpi or greater. 300dpi is the minimum for modern inkjet printers.
• Therefore if an image is produced, which is destined for paper, it should be created at 300+ dpi; and 72-100dpi for the screen, as additional pixels will increase files size, but yet they will never be displayed.