- GD (works with versions 1.2 - 1.8.3 (GIF, PNG, JPEG) )
- PHP3 or PHP4 (works with both). For PHP2 and PHP3 see the older routines here
- Does NOT require TTF, but if you have it then PHPLOT can use it.
- Scalings: Log-log, text-log, text-linear, linear-linear linear-log, log-linear
- TTF and Non-TTF fonts
- Moving Averages (subclass _data)
- Scaling of data. (subclass _data)
- Movable X and Y axes.
- Adjustable Tick scalings (autoscalling and manual scaling)
- Legends
- Ability to draw multiple graphs on one image.
- Browser Cache settings (on or off)
- Inteligent Color Allocation for smaller images.
- Types of Charts:
Bar
Thinbarline (for stock volume charts)
Area
Line
Scatter
Error (for stock high-low-close or scientific plots)
Pie Chart:
Combinations of the above
3-D Bar Charts (50% done)
3-D Surface: (50% Done)
GPL and PHP
Lots of stuff posted on PHP code exhange, Rasmus Lerdorf, Bjørn Borud, Jean-Marc Libs, Benjamin Stocker, James Pine, Ariel Garza. Diffs and Code sent by Marlin Viss, Joao Rochate, Theimo Nagel, Remi Ricard. Documentation help by Theimo Nagel. General Discussions with Tan Bhatnagar. Data for real world examples from Stephen C. Grubb.
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