zoomming and panning in plotting software

Jul 18, 2014 at 11:18 AM
Edited Jul 19, 2014 at 12:07 AM
hi.

as recommended here i used WriteableBitmapEx to plot about 100000 points on the screen. not all 100000 points are drawing at once but about 1000 points in 30 ms and the performance is very good. now i want to have zoom and pan for plots without resizing plots so only distance between plot changes.

what's the solution? is blit function help in this case? how to use it? any other idea?

with every zoom key and arrow key pressed i have to clear writablebitmap and redraw all of 100000 points in new positions at once and this is very heavy.

what is the best way for zooming and panning. is there a function?

should i use 3D camera on Image? how (code sample)?

thanks.