Letters Rotate?

[Onieh]

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

[StephenG1CMZ]

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

[Han]

(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.