1. Lecture 2 COMP1900 Website Construction 2 Michele Huston Web Manager THE AUSTRALIAN WAR MEMORIAL www.awm.gov.au

2. Lecture 2 COMP1900 The Internet & The Web The Internet –Computer network The World Wide Web –Word processor –http: protocol for transferring files –hypertext Graphical interface –Browser

3. Lecture 2 COMP1900 Graphics

4. Lecture 2 COMP1900 Free Images Clip Art, Photos, buttons, lines, etc –http:images.google.comhttp:images.google.com Check for usage conditions

5. Lecture 2 COMP1900 Images & the ALT Tag

6. Lecture 2 COMP1900 Images –Alignment left|center|right top|middle|bottom

7. Lecture 2 COMP1900 Images Formats.gif Graphical Interface Formats Good for images with large block of horizontal colour

8. Lecture 2 COMP1900 Images Formats.jpg JPEG Good for photos

9. Lecture 2 COMP1900 Images Attributes –width & height –Border Horizontal –

10. Lecture 2 COMP1900 Interlaced Images

11. Lecture 2 COMP1900 Dithering True ColourDitheredColour Substitution

12. Lecture 2 COMP1900 Screen Colour Quality depends upon –CPU –Graphics Card –Monitor Lots of variation between platforms –Colours viewed on Windows appear a little darker than on a Mac

13. Lecture 2 COMP1900 Dithering & Backgrounds Dithered background http://www.anu.edu.au/~u8612842/comp1900/dither.htmlbackground Non-dithered background http://www.anu.edu.au/~u8612842/comp1900/ditherno.htmlNon-dithered background

14. Lecture 2 COMP1900 The Web safe Palette Visibone Color Lab –http://www.visibone.com/colorlab/http://www.visibone.com/colorlab/ The Really Websafe Palette http://hotwired.lycos.com/webmon key/00/37/stuff2a/complete_webs afe_216/reallysafe_palette.htmlhttp://hotwired.lycos.com/webmon key/00/37/stuff2a/complete_webs afe_216/reallysafe_palette.html

15. Lecture 2 COMP1900 Antialiasing AntialiasedAliased

16. Lecture 2 COMP1900 Transparent Gifs

17. Lecture 2 COMP1900 Web Colour Attribute - color –note spelling –hexadecimal eg. #FF3366 –name eg. red, green, blue magenta

18. Lecture 2 COMP1900 Contrast and Readability

19. Lecture 2 COMP1900 Links Click here –Link to local file Student Computing –Link to remote file target –Link to target within the page