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Types of content

Types of content. Contone DEMS Photos Some statistical layers Spot color (drawings, vector) Points Polylines polygons Categorical rasters: Land cover. GoogleMaps. ESRI ArcMap Data Set. Export File Formats. Contone: JPEG TIFF with JPEG compression Spot Color, Line Drawings GIF

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Types of content

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  1. Types of content • Contone • DEMS • Photos • Some statistical layers • Spot color (drawings, vector) • Points • Polylines • polygons • Categorical rasters: • Land cover GoogleMaps ESRI ArcMap Data Set

  2. Export File Formats • Contone: • JPEG • TIFF with JPEG compression • Spot Color, Line Drawings • GIF • PNG • TIFF with LZW or run-length compression • Combined: • JPEG with high quality (low compression) • TIFF without compression

  3. PDF • Portable Document Format • Maintains page layout • Can be high resolution • PDFReader available free from Abobe.com • Many PDF “Print Drivers” available • BullZip PDF Writer rated highest by CNet.com

  4. Map Production • Computer Screens (CRTs, Monitor): • Emit light in a grid • 75-120 dpi • Red, Green, Blue: Millions of colors • Good for contone • Printers: • Place ink on paper • Cyan, Yellow, Magenta, Black (CYMK) • 300 to 2000 dpi • Good for spot color

  5. Color Theory Light: Additive Pigment: Subtractive Computer Screens (CRT) Printers

  6. CIE Color Diagram

  7. Color Separation

  8. Process Color

  9. Color Printer Process • Get the layout right • Test the margins on a black and white printer • Test the color print • Adjust the colors until they look good • Show it to others including target audience • Cut off a white border if desired

  10. Offset Press • Professional grade • Large numbers of copies • $500 for 500 copies • Cheaper for additional copies • Each color on a separate “plate” • Can mix special colors • Almost all magazines and books are printed on offset press

  11. Pre-Press Process • Talk to the printer! • Follow color printer process • Take the file and the color print to the process printer • Process printer creates “photo ready art” • May do a test run • Approve final output

  12. Paper • Paper is graded by “hardness” • Newspaper • Office paper • “Hard” paper (Hammermill) • Glossy paper • Colored paper • Dark colors rarely work with computer printers • Use white paper and print the background solid

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