Things work pretty well now but plot joins the last data point to the first by a straight line segment. For example
plot (;*:) steps _1 2 100 shows the graph of y = x^2 for x going from _1 to 2 together with a straight line segment from the point 2 4 to the point _1 1. In J602 the same plot command draws the curve correctly, without that straight line segment from the last point of the curve to the first point. On 12/2/2011 7:07 PM, bill lam wrote: > There was a mismatch for suffix htm vs html, please update plot package > (to 1.0.17) and test again. > > Птн, 02 Дек 2011, Kip Murray писал(а): >> The rough edges include absence of ~addons/ide/jhs/jplotdemos.ijs . I >> found jplotdemo.ijs and tried it instead. After several iterations of >> installing addons required by jplotdemo.ijs I was able to do >> >> plotdemo >> NB. requires JAL graphics/plot and graphics/afm installs >> NB. requires JAL general/misc and math/misc installs >> NB. plotdemos 0 through jplot 54 create html plot files >> plot 10?10 >> plotdemos 1 >> plotdemos 10 >> plotdef 'show';600 300 NB. jhsshow width height >> plotdemos 10 >> plotdef 'link';400 200 NB. jhslink >> plotdemos 25 >> plotdef 'none';600 300 NB. create ~temp/plot.html without show or link >> plotdef 'show';600 300 NB. jhsshow >> plotdemos 54 >> >> but none of the listed commands would work correctly with Google Chrome. >> For example, >> >> plot 10?10 >> >> led to a window with address http://127.0.0.1:65001/~temp/plot.html >> and Chrome error message >> >> No data received >> Unable to load the webpage because the server sent no data. >> Here are some suggestions: >> Reload this webpage later. >> Error 324 (net::ERR_EMPTY_RESPONSE): The server closed the connection >> without sending any data. >> >> This was a typical response to the commands I tried. >> >> However, when I used Windows Explorer to find file >> >> C:\Users\Kip Murray\j701-user\temp\plot.htm >> >> and clicked on the file name in Windows Explorer, a J Plot window opened >> showing a jagged line plot passing through ten random points, on a >> "graph paper" grid with labels i.10 on the x and y axes. >> >> So something is working! >> >> It appears to me ~temp/plot.html was incorrect identification of the >> html file. >> >> >> On 12/2/2011 12:34 PM, Eric Iverson wrote: >>> Thanks to a significant contribution by Bill Lam we now have much of the J6 >>> native J plot facility in J7 JHS! >>> >>> This provides plotting in JHS similar to what was available in J6 without >>> the requirement for gnuplot and without the limitations of Google Charts. >>> >>> The plot output is an html file that draws on the html5 canvas element. >>> This is similar to the new gnuplot facility and uses the same jhsshow, >>> jhslink, and related facilities. >>> >>> There are still rough edges that need work, but I strongly encourage you to >>> take an initial look. >>> >>> Use JAL to update JHS then shutdown and restart JHS server. >>> >>> browse to jijx >>> load'~addons/ide/jhs/jplotdemos.ijs' >>> plotdemo >>> >>> One of the big problems in getting labs to run in JHS was that J6 plot >>> wasn't supported. With this new support it should be much easier to get >>> more of the labs running cleanly on JHS. >>> >>> This plot facility will work on your iPad! >>> ---------------------------------------------------------------------- >>> For information about J forums see http://www.jsoftware.com/forums.htm >> ---------------------------------------------------------------------- >> For information about J forums see http://www.jsoftware.com/forums.htm > ---------------------------------------------------------------------- For information about J forums see http://www.jsoftware.com/forums.htm
