Brian, it definitely looks like it's something with the webgl code instead of what you are doing with J. I am not familiar with webgl so I will need to read up on it.
I can say it's webgl/javascript because I get the same behavior of wiping out the canvas if I just paste lines like this into the javascript console (developer tools) drawPrimitive( gl.LINES, [0,1,0,1], [ 0,-2,0, 0,2,0] ); I suspect it has something to do with the coordinates or drawing logic. I may do some more research tomorrow on it On Sat, Mar 8, 2014 at 5:25 PM, Brian Schott <[email protected]> wrote: > Joe, > > Thanks for the offer. I have put the code here. https://dpaste.de/qJge > Believe it or not it is dumbed down, even though it is long. > The main trick I used to trim it was to replace the usual user input, which > is something like `fd 20`, with the suggested jhrajax input. > > Let me know if there is a problem, please. > > > On Sat, Mar 8, 2014 at 3:47 PM, Joe Bogner <[email protected]> wrote: > >> Hi Brian - It sounds like it should work if you are evaluating a drawLines >> call after each ajax request and not refreshing the whole page. >> >> Can you post the full code or at least the part that handles the ajax >> response to better diagnose? >> >> > > -- > (B=) > ---------------------------------------------------------------------- > For information about J forums see http://www.jsoftware.com/forums.htm ---------------------------------------------------------------------- For information about J forums see http://www.jsoftware.com/forums.htm
