application applet no display
in
Integration and Hardware
•
1 year ago
the following is a simple sketch to display temperature graph by taking value from serial port from an arduino board with temperature sensor..
however the index.html file as well as the application exported from this sketch do not display anything.
i tried after signing the executable jar file in applet folder , however it did not help , is there anything in the program which is preventing the display.
import processing.serial.*;
String temperature = "0";
PFont font;
Serial port;
int xPos=100;
float Maxi=0;
float Mini=100;
int counter=0;
void setup() {
String portName = Serial.list()[2];
port = new Serial(this, portName, 9600);
font = loadFont("Ziggurat-HTF-Black-32.vlw");
textFont(font);
textAlign(CENTER);
size(600, 600);
background(0);
fill(0);
smooth();
}
void draw() {
counter= counter+1;
fill(50,100,180);
text("time >> " , width/2, height-50);
text("temp " ,60,height-250);
text("^",60,height-260);
text("^",60,height-280);
if (port.available()>0) {
delay(100);
temperature = port.readString();
}
//background(255); // Set background to dark gray
fill(255);
rect(0,0,600,200);
stroke(20,20,250);
for(int i=100; i <601 ; i= i+25)
line(i,200,i,500);
for(int j=200;j <501; j= j+25)
line(100,j,600,j);
fill(0);
text("temp : "+temperature+ "Deg. Cel", width/2, height/8);
text("Max. "+ Maxi+"Deg. Cel",width/2,140);
if(counter>200)
text("Min. "+ Mini+"Deg. Cel",width/2,180);
//fill(255);
//text("time >> " , width/2, height-50);
//text("temp " ,80,height-200);
if (temperature != null)
{ // trim off any whitespace
temperature = trim(temperature);
}
//convert to an int and map to the screen height
float tempe = float(temperature);
print(" aftr string2flt="+tempe+" "+" string="+temperature);
//alarm placing
if(Maxi<tempe)
Maxi=tempe;
if(counter>200)
{
if(Mini>tempe)
Mini=tempe;
}
if(tempe > 35.0)
{stroke(200,10,20);
fill(255,10,10);
text("Overheating ",width/2,250);
}
else
stroke(10,200,20);
//mapping
tempe = map(tempe,0,100,0,(height-300));
println("mapped="+tempe+" height="+height+" ");
//draw the line
line( xPos , 500 , xPos ,(height-100)-(int)tempe);
delay(1000);
xPos= xPos+1;
if(xPos >=width)
{xPos=100;
fill(0);
rect(100,200,width-100,height-300);
}
//}
}
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