I noticed that Apple IOS 8 enables a graphics system, webGL, for the first time. Although webGL may not be required, I have been thinking about creating a student oriented graphics system around the turtle graphics system in J (TGSJHS) which I have been developing. My imagined system would run off of iPads and other tablets where in each classroom the teacher would initialize a single turtle system with enough turtles for all of the students. (Perhaps, each student could have their own turtle graphics as well, but there would be a single common system). I have not imagined a story line nor have I thought of a game scenario that could motivate the usage of the system, but I am hoping some such scheme would be forthcoming.
Using JHS on a local network for such a system appeals to me because it seems that multiple computers on a single system all have access to the main server of the JHS. So if on one system the value of `a` is assigned the scalar value 5, other clients on the same system can tell that the value of the noun `a` is five, I believe. (I am thinking of the instructor's computer as the server, and the students' computers a clients. That may be the flaw in my plan.) However, I have encountered a difficulty in using my graphics system in this manner. Normally my graphics system is split into a single browser window, with three HTML frames: a JIJX frame, a graphics frame, and a help window text frame in the tradition of demo number 9 of JHS . But, when I try to view the three frame window on my iPad, all I see is the frame outlines and the contents of all three frames are empty. (Honestly, I am not able to even see the 3 frame window on the tablet, presently, but I am sure I did once. I am able to see the Projects directory of files on the server computer in a jfile browser window ((including console.html)), and can select any one of them with a tap, but I cannot perform any action to load/run that file. But I am able to access the jijx from the tablet and view all of the script of TGSJHS.) Below I have supplied the HTML code for the three frame window in the hopes that maybe the problem can be alleviated with some changes there. In any case I am hoping to avoid having to download to each tablet a file like the HTML file. <html><head><title>Turtle Graphics</title></head> <frameset cols="24%,*"> <frame src="http://127.0.0.1:65001/jijx"; name="ijx", scrolling='auto'> <frameset rows="87%,*"> <frame src="http://127.0.0.1:65001/tgsj"; name="ijs", scrolling='auto'> <frame src="http://127.0.0.1:65001/~Projects/tgsjhs/tgsjhshelp.html"; name="help", scrolling='auto'> </frameset> </frameset> </html> TGSJHS can be found here: http://www.jsoftware.com/jwiki/BrianSchott/code/turtleGraphics/tgsjhs . --- (B=) ---------------------------------------------------------------------- For information about J forums see http://www.jsoftware.com/forums.htm
