Light Level Visualisation

sketch.pde

//table to store data
Table data;

void setup() {
    //set the visualisation resoluton
    size(4000, 2000); 
    
    //load the data file
    data = loadTable("feeds.csv", "header");
    
    //get the amount of rows and index
    int amount = data.getRowCount();
    int index = 0;
    
    //set the white background, black stroke 2pt and no fill
    background(255);
    stroke(0);
    strokeWeight(2);
    noFill();
    
    //begin visualisation
    beginShape();
    
    //loop through the rows
    for(TableRow row : data.rows()) {
       //get light level
       int level = row.getInt("field1"); 
       
       //get the x from the current index and y from the data (0, 1024) mapped to (height - 0)
       float x = map(index, 0, amount, 0, width);
       float y = map(level, 0, 1024, height, 0);
       
       //set the stroke colour and plot the point
       stroke(0);
       vertex(x, y);
       
       //increment index
       index++;
    }
    
    //end the shape
    endShape();
    
    //save the visualisation and quit
    saveFrame("data.png");
    exit();
}