WaveshareTouchScreen::normalizeTsPoint( TSPoint &p, uint8_t rotation)

[tdoan95]

The normalizeTsPoint-function is not working properly.

InTouchTest.ino I always wondered why you have to change back to "Waveshield.setRotation(0);"
Turns out the coordinates wouldn't fit if left at "Waveshield.setRotation(1);"

So the TouchTest.ino only works if you set your text horizontally at rotation = 1 and to draw you set back rotation = 0

And ONLY then it will work like this. Like you can't set rotation = 0, write vertical and then change to rotation = 1 to draw. The fillCircle-dots will be off-set and mirrored.

After some troubleshooting I found out normalizeTsPoint-function is the culprit. Please correct me if I'm wrong, I'm still learning. I changed the last part of the function to this:

int16_t t;
switch (rotation)
{
case 0:
break;

case 1:
t = p.y;
p.y = LCD_WIDTH - 1 - p.x;
p.x = t;
break;

case 2:
p.y = LCD_HEIGHT - 1 - p.y;
p.x = LCD_WIDTH - 1 - p.x;
break;

case 3:
t = p.y;
p.y = p.x;
p.x = LCD_HEIGHT - 1 - t;
break;
}

This solved the problem for me but I'm not sure if it is really solved or just superficial solved.

[MikeTosen]

Fantastic - I can confirm - this solved the problem.

Thanks for posting this, saved me allot of headaches