HP Forums

With what order can I turn the writing about 90 degrees with the HP Prime?

IIRC the best way is to place the text into another graphic screen, rotate it, then overlay that onto the desired graphic.
Or,

http://www.hpmuseum.org/forum/thread-713...ght=Rotate

(03-10-2017 09:37 PM)StephenG1CMZ Wrote: [ -> ]IIRC the best way is to place the text into another graphic screen, rotate it, then overlay that onto the desired graphic.

http://www.hpmuseum.org/forum/thread-713...ght=Rotate

Erwin's program to rotate a graphics object is really nice. There is an alternative method that might produce slightly different results (perhaps better quality?). Rather than taking a pixel from the source graphics object and rotating it into the destination graphics object, you might get better quality by taking a destination position, applying an inverse rotation, sample the the color there, and then color the destination position with the sample color. This will enable you to have a finer handle on how to color a pixel (in the destination location) that would have presumably come from in between two pixels in the source position.

The mathematics is more or less the same, just in a slightly different order.