Go Down

Topic: arduion proccesing graph- problem (Read 5727 times) previous topic - next topic


Apr 19, 2013, 05:55 pm Last Edit: Apr 19, 2013, 08:26 pm by Coding Badly Reason: 1
Hello, im using proccessing for graphs, but i want a linear graph, what function do i need to use to make a normal line like in this graph: http://www.youtube.com/watch?v=iH1bPQOCAH4

Im new to proccesing, ive tried to change and add some code but i get error all the time.

here is the code!

Code: [Select]
// Graphing sketch

// This program takes ASCII-encoded strings
// from the serial port at 9600 baud and graphs them. It expects values in the
// range 0 to 1023, followed by a newline, or newline and carriage return

// Created 20 Apr 2005
// Updated 18 Jan 2008
// by Tom Igoe
// This example code is in the public domain.

import processing.serial.*;

Serial myPort;        // The serial port
int xPos = 1;         // horizontal position of the graph

void setup () {
// set the window size:
size(400, 300);        

// List all the available serial ports
// I know that the first port in the serial list on my mac
// is always my  Arduino, so I open Serial.list()[0].
// Open whatever port is the one you're using.
myPort = new Serial(this, Serial.list()[0], 9600);
// don't generate a serialEvent() unless you get a newline character:
// set inital background:
void draw () {
// everything happens in the serialEvent()

void serialEvent (Serial myPort) {
// get the ASCII string:
String inString = myPort.readStringUntil('\n');

if (inString != null) {
// trim off any whitespace:
inString = trim(inString);
// convert to an int and map to the screen height:
float inByte = float(inString);
inByte = map(inByte, 0, 1023, 0, height);

// draw the line:
line(xPos, height, xPos, height - inByte);

// at the edge of the screen, go back to the beginning:
if (xPos >= width) {
xPos = 0;
else {
// increment the horizontal position:

Moderator edit: [code] [/code] tags added.


Im new to proccesing

The Arduino part of your question is?
The art of getting good answers lies in asking good questions.

Go Up