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Full Version: Smith Chart
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This is an update to the very nice Smith Chart program. It paints up to 3 selected fields as colored surface. The original update took about 6 minutes. This version takes about 17 seconds.

// Author: KeithB http://www.hpmuseum.org/forum/thread-8478.html
// Modified by Doug Music Dec 2017
// Expand to fill display
// Add gradients painting allowing 3 parameters to be mapped to RGB
// Add inverting cursor
// Switch to pixel mode because of interactions between apps and the program both setting xmax (OS bug?)
// Usage:
// Tap Freq in upper right to set Frequency
// Tap QUIT to exit
// Tap a parameter to toggle its color thru RGBW - The first parameter for each color (RGB) wins
// Tap Gradients to paint per the selected parameter colors (it is a slow process but cool)
// Only RGB parameters are painted
// To paint new parameter selections, tap "Gradients" twice to toggle it off/on
Wow, someone actually used my program!
Reference URL's