Update coordinatesystem.html

7a527878 · Koukofikis · 7018135a · 7a527878
Commit 7a527878 authored May 19, 2021 by Koukofikis
--- a/public/X3DOMTutorial/coordinatesystem.html
+++ b/public/X3DOMTutorial/coordinatesystem.html
-<html>
+<html>

 <head>
 	<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
@@ -111,7 +111,7 @@
 			</td>
 			<td width="50%" align="left" valign="top" scope="col">
 				In X3DOM, a right hand coordinate system is used. The Y-axis is pointing up. <br> <br>
-				<img src="http://flylib.com/books/2/416/1/html/2/images/fig3-3.jpg" width="350" height="310" />
+				<img src="https://flylib.com/books/2/416/1/html/2/images/fig3-3.jpg" width="350" height="310" />
 			</td>
 			<script type="text/javascript" src="x3dom.js"></script>
 </body>