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Graphics - PowerPoint PPT Presentation


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Graphics. The computer screen is made up of pixels. The lower left corner of the screen is the point (0,0). The first number is the x co-ordinate. The second, the y coordinate. . A (0,0). Graphics. The top left corner of the screen has coordinates (0,maxy)

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PowerPoint Slideshow about 'Graphics' - johana


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Presentation Transcript
Graphics
Graphics

  • The computer screen is made up of pixels.

  • The lower left corner of the screen is the point (0,0). The first number is the x co-ordinate. The second, the y coordinate.

A (0,0)


Graphics1
Graphics

  • The top left corner of the screen has coordinates (0,maxy)

  • The top right corner of the screen has coordinates (maxx,maxy)

  • The bottom right corner of the screen has coordinates (maxx,0)


Graphics2
Graphics

(maxx,maxy) C

B(0,maxy)

A(0,0)

(maxx,0)D


Graphics3
Graphics

(maxx div 4,maxy)

(maxx * 3 div 4,maxy)

(maxx div 2,maxy div 2)

(maxx div 4,0)

(maxx *3 div 4,0)


Graphics4
Graphics

Draw.FillBox(x1,y1,x2,y2,colour)

y-axis

(x2,y2)

(x1,y1)

x-axis


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