gistfile1.txt

var PANEL_WIDTH   = 5.2;
var PANEL_HEIGHT  = 2.5;
var PANEL_SPACING = 0.5;

function MountingArea(width, height) {
  this.width = width; this.height = height;
  this.solar_array = new SolarArray(width, height)
}

function SolarArray(width, height) {
  var row_panel_count    = Math.floor(parseFloat(width) / PANEL_WIDTH);
  var column_panel_count = Math.floor(parseFloat(height) / PANEL_HEIGHT);
  this.width  = row_panel_count*(PANEL_WIDTH+PANEL_SPACING)-PANEL_SPACING;
  this.height = column_panel_count*(PANEL_HEIGHT+PANEL_SPACING)-PANEL_SPACING;
  
  this.panels = function() {
    var panel_array = new Array(row_panel_count, column_panel_count)
    for (i=0; i<row_panel_count; i++) {
      for (j=0; j<column_panel_count; j++) {
        panel_array[i, j] = new Panel(i, j);
      }
    }
    return panel_array;
  }
}

function Panel(row_index, column_index) {
  this.width = PANEL_WIDTH; this.height = PANEL_HEIGHT;
  this.row_index = row_index; this.column_index = column_index;
}

var mounting_area = new MountingArea(32.5, 42.8);
console.debug(mounting_area.solar_array.panels);