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198 Getting Started with Processing
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}
if (x > width) {
x = 0;
}
Similar to Example 5-8 on page 54 and Example 5-9 on page 55,
this sketch uses the easing technique. Each new byte from the
Arduino board is set as the target value, the difference between
the current value and the target value is calculated, and the current
value is moved closer to the target. Adjust the easing variable
to affect the amount of smoothing applied to the incoming
values.
Example 13-9: Another Way to Look
at the Data
This example is inspired by radar display screens. The values
are read in the same way from the Arduino board, but they are
visualized in a circular pattern using the sin() and cos() functions
introduced earlier in Example 8-12 on page 115, Example
8-13 on page 115, and Example 8-15 on page 116:
import processing.serial.*;
Serial port; // Create object from Serial class
float val; // Data received from the serial port
float angle;
float radius;
void setup() {