Java Graph Drawing

1
Java Graph Drawing

• Program development

2
Index

• 1 plot.java pink
• 2 gplot - green
• 3 plotgrafs - white

3
Package gplot

• Version 1 tests methods
• Uses Normalised Device Coordinates NDC
• Test methods, getmin, scale, translate, polyline
  etc
• Uses graph object
• Mygraph mygr new mygraph()

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Package plot

• Improved Version 2
• Low level methods in NormG
• Graph methods in grahobj
• Supports 3 modes of plotting
• Mode 1 autoscaling plotgraphX
• Mode 2 manual scaling
• Mode 3 incremental plotting

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Package gplot cont.

• Additional methods added
• markRect, markOval
• Marks axes using graphics text methods
• Set reference to graphics object
• Ng.setg(g, xMAX, yMAX)
• Gobj.setNgref( Ng )

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Project plotgrafs

• Ver 3 - multiple graph plotting
• Demonstrates use of gplot
• Graphobj GobjX new graphobj()
• Plot 3 different graphs in window
• Model object for maths function
• UML class diagrams
• Design based MVC approach