Arduino/processing:: troubles with image range
in
Programming Questions
•
3 years ago
hey!
i am new with programming, so i sent you the whole skripts...sorry for so much to read!
the project is about a perescope with virtual view. one potti shall make a parted 360° view.
the problem is, that the potentiometer is 0-256 ( pixels), and move the image only a little.
i need (for a panorama) a range of 2000pixels on the x-achses, the screen shows a part, so processing has to know a wider range 2000/256 to move the whole image!
i would be glad for an idea!!
greetings from vienna
0___1___2___3____4_____[screen]_____6_____7___etc
[____________PICTURE__________ _______________]
//Arduino Skript/*
int firstSensor = 0; // first analog sensor
int secondSensor = 0; // second analog sensor
int thirdSensor = 0; // digital sensor
int inByte = 0; // incoming serial byte
void setup()
{
// start serial port at 9600 bps:
Serial.begin(9600);
pinMode(2, INPUT); // digital sensor is on digital pin 2
establishContact(); // send a byte to establish contact until receiver responds
}
void loop()
{
// if we get a valid byte, read analog ins:
if (Serial.available() > 0) {
// get incoming byte:
inByte = Serial.read();
// read first analog input, divide by 4 to make the range 0-255:
firstSensor = analogRead(0)/4;
// delay 10ms to let the ADC recover:
delay(10);
// read second analog input, divide by 4 to make the range 0-255:
secondSensor = analogRead(1)/4;
// read switch, map it to 0 or 255L
thirdSensor = map(digitalRead(2), 0, 1, 0, 255);
// send sensor values:
Serial.print(firstSensor, BYTE);
Serial.print(secondSensor, BYTE);
Serial.print(thirdSensor, BYTE);
}
}
void establishContact() {
while (Serial.available() <= 0) {
Serial.print('A', BYTE); // send a capital A
delay(300);
}
}
// Processing skript*
import processing.serial.*;
PImage a; // Declare variable "a" of type PImage
int bgcolor; // Background color
int fgcolor; // Fill color
Serial myPort; // The serial port
int[] serialInArray = new int[3]; // Where we'll put what we receive
int serialCount = 0; // A count of how many bytes we receive
int xpos, ypos; // Starting position of the ball
boolean firstContact = false; // Whether we've heard from the microcontroller
void setup() {
size(800, 800); // Stage size
noStroke(); // No border on the next thing drawn
a = loadImage("ladefense1.jpg"); // Load the image into the program
// Set the starting position of the ball (middle of the stage)
xpos = -40;//width/4;
ypos = -40;//height/4;
// Print a list of the serial ports, for debugging purposes:
println(Serial.list());
// I know that the first port in the serial list on my mac
// is always my FTDI adaptor, so I open Serial.list()[0].
// On Windows machines, this generally opens COM1.
// Open whatever port is the one you're using.
String portName = Serial.list()[0];
myPort = new Serial(this, portName, 9600);
}
void draw() {
background(bgcolor);
fill(fgcolor);
// Draw the shape
//ellipse(xpos, ypos, 20, 20);
image(a,xpos, ypos);
}
void serialEvent(Serial myPort) {
// read a byte from the serial port:
int inByte = myPort.read();
// if this is the first byte received, and it's an A,
// clear the serial buffer and note that you've
// had first contact from the microcontroller.
// Otherwise, add the incoming byte to the array:
if (firstContact == false) {
if (inByte == 'A') {
myPort.clear(); // clear the serial port buffer
firstContact = true; // you've had first contact from the microcontroller
myPort.write('A'); // ask for more
}
}
else {
// Add the latest byte from the serial port to array:
serialInArray[serialCount] = inByte;
serialCount++;
// If we have 3 bytes:
if (serialCount > 2 ) {
xpos = serialInArray[0];
ypos = serialInArray[1];
fgcolor = serialInArray[2];
// print the values (for debugging purposes only):
println(xpos + "\t" + ypos + "\t" + fgcolor);
// Send a capital A to request new sensor readings:
myPort.write('A');
// Reset serialCount:
serialCount = 0;
}
}
}
i am new with programming, so i sent you the whole skripts...sorry for so much to read!
the project is about a perescope with virtual view. one potti shall make a parted 360° view.
the problem is, that the potentiometer is 0-256 ( pixels), and move the image only a little.
i need (for a panorama) a range of 2000pixels on the x-achses, the screen shows a part, so processing has to know a wider range 2000/256 to move the whole image!
i would be glad for an idea!!
greetings from vienna
0___1___2___3____4_____[screen]_____6_____7___etc
[____________PICTURE__________
//Arduino Skript/*
int firstSensor = 0; // first analog sensor
int secondSensor = 0; // second analog sensor
int thirdSensor = 0; // digital sensor
int inByte = 0; // incoming serial byte
void setup()
{
// start serial port at 9600 bps:
Serial.begin(9600);
pinMode(2, INPUT); // digital sensor is on digital pin 2
establishContact(); // send a byte to establish contact until receiver responds
}
void loop()
{
// if we get a valid byte, read analog ins:
if (Serial.available() > 0) {
// get incoming byte:
inByte = Serial.read();
// read first analog input, divide by 4 to make the range 0-255:
firstSensor = analogRead(0)/4;
// delay 10ms to let the ADC recover:
delay(10);
// read second analog input, divide by 4 to make the range 0-255:
secondSensor = analogRead(1)/4;
// read switch, map it to 0 or 255L
thirdSensor = map(digitalRead(2), 0, 1, 0, 255);
// send sensor values:
Serial.print(firstSensor, BYTE);
Serial.print(secondSensor, BYTE);
Serial.print(thirdSensor, BYTE);
}
}
void establishContact() {
while (Serial.available() <= 0) {
Serial.print('A', BYTE); // send a capital A
delay(300);
}
}
// Processing skript*
import processing.serial.*;
PImage a; // Declare variable "a" of type PImage
int bgcolor; // Background color
int fgcolor; // Fill color
Serial myPort; // The serial port
int[] serialInArray = new int[3]; // Where we'll put what we receive
int serialCount = 0; // A count of how many bytes we receive
int xpos, ypos; // Starting position of the ball
boolean firstContact = false; // Whether we've heard from the microcontroller
void setup() {
size(800, 800); // Stage size
noStroke(); // No border on the next thing drawn
a = loadImage("ladefense1.jpg"); // Load the image into the program
// Set the starting position of the ball (middle of the stage)
xpos = -40;//width/4;
ypos = -40;//height/4;
// Print a list of the serial ports, for debugging purposes:
println(Serial.list());
// I know that the first port in the serial list on my mac
// is always my FTDI adaptor, so I open Serial.list()[0].
// On Windows machines, this generally opens COM1.
// Open whatever port is the one you're using.
String portName = Serial.list()[0];
myPort = new Serial(this, portName, 9600);
}
void draw() {
background(bgcolor);
fill(fgcolor);
// Draw the shape
//ellipse(xpos, ypos, 20, 20);
image(a,xpos, ypos);
}
void serialEvent(Serial myPort) {
// read a byte from the serial port:
int inByte = myPort.read();
// if this is the first byte received, and it's an A,
// clear the serial buffer and note that you've
// had first contact from the microcontroller.
// Otherwise, add the incoming byte to the array:
if (firstContact == false) {
if (inByte == 'A') {
myPort.clear(); // clear the serial port buffer
firstContact = true; // you've had first contact from the microcontroller
myPort.write('A'); // ask for more
}
}
else {
// Add the latest byte from the serial port to array:
serialInArray[serialCount] = inByte;
serialCount++;
// If we have 3 bytes:
if (serialCount > 2 ) {
xpos = serialInArray[0];
ypos = serialInArray[1];
fgcolor = serialInArray[2];
// print the values (for debugging purposes only):
println(xpos + "\t" + ypos + "\t" + fgcolor);
// Send a capital A to request new sensor readings:
myPort.write('A');
// Reset serialCount:
serialCount = 0;
}
}
}
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