I have been testing several note taking applications on my TFP. Although I have lousy handwriting the TFP makes it even worse. At first I blamed myself and the rather clumsy big tipped stylus and to improve the results I downloaded Touchscreen Tuner. A nice application but minimal improvement.
Then I also noticed it is impossible to draw accurate on the TFP.
A straight horizontal or vertical line is possible but when you try to draw a straight diagonal line it becomes a wave line. Now I really got worried. Maybe my drinking habits had given me this unsteady hand. So I got out a ruler and drew a diagonal line along it. I was relieved that I could continue drinking but what a shock to see the result. Again the diagonal line turned out as a wave line. (See the screen shot)
It turns out the grid of the digitizer is much too widely spaced. I estimate the distance between grid points at about 5 millimeters. And apparently the algorithm to interpolate between the grid points is so insufficient that a contact on the digitizer between two grid points is regarded as a contact with the nearest grid point. The algorithm doesn’t calculate a point in between.
Another way to see this is when you pick up an icon on the home screen and slowly drag it diagonally across the screen. It will not follow your finger or stylus smoothly but it will sway from left to right and stay behind a bit and then catch up again.
A big plus for the TFP for me was the possibility to accurately draw and take notes while working in the field.
As it is advertized and showed by Asus in promotional videos.
That is also what the Notes application was designed for.
Again I am afraid that Asus has (next to GPS, Wifi/BT issues, performance and screen faults) promised us to much goodies to be true.
Does anyone have a solution to this shortcoming or maybe can test if they can reproduce my findings. Maybe it is a malfunction in my TFP.
Please let me know your solutions or findings.
By the way. I also tested a HTC Sensation, a HTC HD and an Ipad 2. On these devices it is perfectly possible to draw a perfectly straight diagonal line.