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COMP 1001: Introduction to Computers for Arts and Social Sciences Data Representation Wednesday, May 25, 2011.

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Presentation on theme: "COMP 1001: Introduction to Computers for Arts and Social Sciences Data Representation Wednesday, May 25, 2011."— Presentation transcript:

1 COMP 1001: Introduction to Computers for Arts and Social Sciences Data Representation Wednesday, May 25, 2011

2 COMP 1001: Introduction to Computers for Arts and Social Sciences Bits and Bytes 4 bytes = 32 bits → 1 integer = a number up to 4,294,967,296

3 COMP 1001: Introduction to Computers for Arts and Social Sciences ASCII Code

4 COMP 1001: Introduction to Computers for Arts and Social Sciences ASCII Code

5 COMP 1001: Introduction to Computers for Arts and Social Sciences Text Compression The Rain Pitter patter Listen to the rain Pitter patter On the window pane

6 COMP 1001: Introduction to Computers for Arts and Social Sciences Text Compression

7 COMP 1001: Introduction to Computers for Arts and Social Sciences Text Compression

8 COMP 1001: Introduction to Computers for Arts and Social Sciences Text Compression

9 COMP 1001: Introduction to Computers for Arts and Social Sciences Babbage's Difference Engine http://www.youtube.com/watch?v=0 anIyVGeWOI

10 COMP 1001: Introduction to Computers for Arts and Social Sciences Raster/Bitmap Graphics

11 COMP 1001: Introduction to Computers for Arts and Social Sciences Colour by Numbers a

12 COMP 1001: Introduction to Computers for Arts and Social Sciences Colour by Numbers 1,3,1 4,1 1,4 0,1,3,1 1,4

13 COMP 1001: Introduction to Computers for Arts and Social Sciences

14 Colour by Numbers Pros and cons of this approach?

15 COMP 1001: Introduction to Computers for Arts and Social Sciences Raster/Bitmap Graphics

16 COMP 1001: Introduction to Computers for Arts and Social Sciences Vector Graphics http://conichiwua.files.wordpress.com/2006/10/bottle_completa.png

17 COMP 1001: Introduction to Computers for Arts and Social Sciences The Difference Two versions of the same image. One is a raster image, the other vector.

18 COMP 1001: Introduction to Computers for Arts and Social Sciences Intro to 3D Graphics

19 COMP 1001: Introduction to Computers for Arts and Social Sciences Mathematical 3D Objects

20 COMP 1001: Introduction to Computers for Arts and Social Sciences Translation

21 COMP 1001: Introduction to Computers for Arts and Social Sciences Rotation

22 COMP 1001: Introduction to Computers for Arts and Social Sciences Scaling

23 COMP 1001: Introduction to Computers for Arts and Social Sciences 3D Games Have to Deal With: How much can the camera see? http://www.chadvernon.com/blog/wp-content/uploads/2007/07/frustum.jpg

24 COMP 1001: Introduction to Computers for Arts and Social Sciences 3D Games Have to Deal With: Should objects further away look smaller?

25 COMP 1001: Introduction to Computers for Arts and Social Sciences 3D Games Have to Deal With: Should objects further away look smaller? http://o.aolcdn.com/gd-media/games/super-mario-galaxy/wii/93.jpg YES

26 COMP 1001: Introduction to Computers for Arts and Social Sciences 3D Games Have to Deal With: Should objects further away look smaller? http://www.codeguru.com/dbfiles/get_image.php?id=10123&lbl=3DPROJ04_GIF&ds=20061023 NO

27 COMP 1001: Introduction to Computers for Arts and Social Sciences Let’s See Graphics in Action! “Big Buck Bunny” Movie created entirely by free, open source tools http://www.bigbuckbunny.org/


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