MobileRead Forums - View Single Post - 903 real annotations and note taking (903, 603)

review · 02-19-2011, 06:47 AM

1) I've looked at the source code of Xournal
2) ported the render engine mupdf successfully.
3) tried my own "scribble" application directly in djviewer

Now we reached a dead end at point 3:
Using the inofficial SDK, header and libraries I used the event handler which gives access to the coordinates of the pen on the screen. I've managed to get some hand written text on the screen. Within the djviewer application. The dead end is that we receive only about 50 events per second (or less). This makes it really slooooooooow to write and the delay is significant. This makes it virtually impossible to use.

I have to assume that scribble uses a new method to directly access a stream of coordinates and that it doesn't have to process each move event.

So that's where I'm at the moment.

Any thoughts or suggestions?

02-19-2011, 06:47 AM	#39
review Addict Posts: 315 Karma: 6448 Join Date: Nov 2010 Device: 903	Progress update for real - real annotations: 1) I've looked at the source code of Xournal 2) ported the render engine mupdf successfully. 3) tried my own "scribble" application directly in djviewer Now we reached a dead end at point 3: Using the inofficial SDK, header and libraries I used the event handler which gives access to the coordinates of the pen on the screen. I've managed to get some hand written text on the screen. Within the djviewer application. The dead end is that we receive only about 50 events per second (or less). This makes it really slooooooooow to write and the delay is significant. This makes it virtually impossible to use. I have to assume that scribble uses a new method to directly access a stream of coordinates and that it doesn't have to process each move event. So that's where I'm at the moment. Any thoughts or suggestions?