Add php files

include/ECM/open_flash_chart2/php-ofc-library/ofc_arrow.php

@@ -0,0 +1,27 @@
+<?php
+
+class ofc_arrow
+{
+	/**
+	 *@param $x as number. Start x position
+	 *@param $y as number. Start y position
+	 *@param $a as number. End x position
+	 *@param $b as number. End y position
+	 *@param $colour as string.
+	 *@param $barb_length as number. Length of the barbs in pixels.
+	 */
+	function ofc_arrow($x, $y, $a, $b, $colour, $barb_length=10)
+	{
+		$this->type     = "arrow";
+		$this->start	= array("x"=>$x, "y"=>$y);
+		$this->end		= array("x"=>$a, "y"=>$b);
+		$this->colour($colour);
+		$this->{"barb-length"} = $barb_length;
+	}
+	
+	function colour( $colour )
+	{
+		$this->colour = $colour;
+		return $this;
+	}
+}