I thought of making gauges or meter dials like nextion displays for pic avr with enough mem to include glcd and trig.
This is first try.
Hard to make a universal any rotation and angle range meter it seems so I'll post a few different ideas and video when I've sorted.
Meters can be done without trig I know, just draw a line from a point x,y to varying x,y constant.
This is more clock like. https://youtu.be/axHTYdH9WW8
If you keep the syntax to just the published Great Cow Methods then this should be highly usable. So, do not use any commands that only exist for that specific GLCD display.
If you would like to refer to this comment somewhere else in this project, copy and paste the following link:
I never learned trig in school '70, not until '83 when I had to convert bbc micro bullseye to amstad 464.
That's why it was iffy...moi :)
I also learnt music notation in the process.
I'm trying to remember now and think a few examples might be useful. I love examples to play with.
This won't match a nextion which needs little resources to run but pics avr have lots of memory..some do.
I'll do something fancy like peak reading,hold and fall for the learning experience.
Posting on youtube gets interest in gcb.
Anobium's scale..or map function, makes gauges much easier to implement. That was a pain before.
If you would like to refer to this comment somewhere else in this project, copy and paste the following link:
A general glcd method is tricky as I only got glcd_width,height to work with and might not want centred display. https://youtu.be/z_CZIEapRk4
This is code to change to horizontal 180.
;needle vars
radius=168
xcentre=160
ycentre=120
oldval=180 ;centre
newval=180 ;of gauge
;---- draw the gauge
start_degrees=90:end_degrees=270
for arc_radius=204 to 210
arc (start_degrees,end_degrees,arc_radius,xcentre,ycentre,ili9341_white)
;arc(start_degrees,end_degrees,arc_radius,arc_centre_x,arc_centre_y,arc_colour)
next arc_radius
FilledCircle (xcentre,ycentre,9,ILI9341_CYAN)
circle (xcentre,ycentre,8,ili9341_red)
;
radius=168
;---- start of main program
If you would like to refer to this comment somewhere else in this project, copy and paste the following link:
I thought of making gauges or meter dials like nextion displays for pic avr with enough mem to include glcd and trig.
This is first try.
Hard to make a universal any rotation and angle range meter it seems so I'll post a few different ideas and video when I've sorted.
Meters can be done without trig I know, just draw a line from a point x,y to varying x,y constant.
This is more clock like.
https://youtu.be/axHTYdH9WW8
Last edit: stan cartwright 2018-04-03
Very niceStan. I have not been keeping up all with glcd stuff.
@Stan. Nice..
If you keep the syntax to just the published Great Cow Methods then this should be highly usable. So, do not use any commands that only exist for that specific GLCD display.
I never learned trig in school '70, not until '83 when I had to convert bbc micro bullseye to amstad 464.
That's why it was iffy...moi :)
I also learnt music notation in the process.
I'm trying to remember now and think a few examples might be useful. I love examples to play with.
This won't match a nextion which needs little resources to run but pics avr have lots of memory..some do.
I'll do something fancy like peak reading,hold and fall for the learning experience.
Posting on youtube gets interest in gcb.
Anobium's scale..or map function, makes gauges much easier to implement. That was a pain before.
A general glcd method is tricky as I only got glcd_width,height to work with and might not want centred display. https://youtu.be/z_CZIEapRk4
This is code to change to horizontal 180.