Created
August 30, 2013 16:44
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| import cherrypy | |
| import StringIO | |
| js = """ | |
| function image_adder(xhr, out) { | |
| return function() { | |
| if (xhr.readyState == 4 && xhr.status == 200) { | |
| var img = document.createElement('img') | |
| img.src = 'data:image/png;base64,' + xhr.responseText; | |
| out.insertBefore(img, out.children[0]); | |
| } | |
| } | |
| } | |
| function request_plot() { | |
| var url = "/plot?cmd=" + document.getElementById('cmd').value | |
| , out = document.getElementById('output') | |
| , xhr = new XMLHttpRequest(); | |
| xhr.onreadystatechange = image_adder(xhr, out); | |
| xhr.open("GET", url, true); | |
| xhr.send(); | |
| } | |
| """ | |
| ui = """ | |
| <html> | |
| <script>{js}</script> | |
| <body> | |
| <form method="get" action="javascript:request_plot()"> | |
| <input id="cmd" type="text" name="cmd"> | |
| </form> | |
| <div id="output"> | |
| <div><h6>output goes here</h6></div> | |
| </div> | |
| </body> | |
| </html> | |
| """.format(js=js) | |
| code_templ = """ | |
| from pylab import * | |
| from numpy import * | |
| fig = figure() | |
| {} | |
| fig.savefig(fd, format='png') | |
| """ | |
| class plotter(object): | |
| @cherrypy.expose | |
| def index(self): | |
| return ui | |
| @cherrypy.expose | |
| def plot(self, cmd=None): | |
| fd = StringIO.StringIO() | |
| exec code_templ.format(cmd) in {'fd': fd} | |
| return fd.getvalue().encode('base64') | |
| cherrypy.config.update({'server.socket_port': 8081}) | |
| cherrypy.quickstart(plotter()) | |
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