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TouchShield - Version: 412
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Processing is the language of the TouchShield as programmed through the Arduino Environment for Windows and Mac.
Gadget Serial beginCanvas() – Accept drawing functions from the Arduino delay() – Delay for a passed millisecond amount of time random() – Generates a random number (long number) text() – for printing char[], int, long, and float types to the screen Input Touchscreen gettouch() – Check the touch screen for a press at a pixel location mouseX – Stored variable when “gettouch()” is called (X location of press) mouseY – Stored variable when “gettouch()” is called (Y location of press) touch_get_cursor() – old style single press touch_calibrate() – Reset the previous calibration and prompt a recalibration Shape 2D Primitives ellipse() – Draws an ellipse of a user specified size and location line() – Draw a line from point to point point() – Draw a single pixel rect() – Draw a rectangle with a specified beginning point, width and height triangle() – Draw a triangle with three specified points quad() – Draw a polygon with 4 specified lines from 4 specified points size() – for clipping shapes new for version 1.1.1 bezeir() draw a bezeir curve arc() draw a partial circle/elipse from start angle to end angle Color Setting background() – Color the whole screen any of 16,777,216 different colors fill() – Sets the color used to fill the inside shapes nofill() – Will allow a shape to be drawn with nothing filled in the inside stroke() – Stores the color of shape outlines or text noStroke() – Allows a shape to be drawn without an outline drawn strokeWeight() – changes the outline thickness of an ellipse or rectangle Fonts HersheyDrawCString() Draw vector font based on Hershey font data. Scaling and rotating supported, pen size not. If you have questions or need any additions to these routines, please email msproul Simple Example MikeExample – getting started with my stealth and slide Hardware Description TouchShield Slide: 
Low level pin register descriptions The LiquidWare TouchShield and TouchSlide are add on shields for the Arduino family of processors. They are both fully compatibable with the Arduino develmpment environment. A full graphics library is provided to draw lines, colors, shapes and images on the screen. The library is comptible with the Processing graphics language and an Mac QuickDraw style command set is in the works
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