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Alejandro Guerrero 2026-09-27 17:21:39 +02:00
commit e6a42e28e9
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78
libraries/LovyanGFX/examples/Sprite/RadgialGauge/RadgialGauge.ino Normal file
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#define LGFX_USE_V1
#include <LovyanGFX.hpp>
static LGFX lcd;
static LGFX_Sprite sprite(&lcd);
struct meter_t
{
int32_t pivot_x;
int32_t pivot_y;
float angle = 0;
float add = 0;
void advance(void)
{
if ((angle >= 256 && add > 0.0)
|| (angle <= 0 && add < 0.0))
{
add = -add;
}
angle += add;
}
void drawGauge(uint32_t color)
{
lcd.setPivot(pivot_x, pivot_y);
sprite.setPaletteColor(1, color);
sprite.pushRotated(angle - 127);
advance();
}
};
struct meter_t meter1, meter2, meter3;
void setup(void)
{
lcd.init();
if (lcd.width() < lcd.height()) {
lcd.setRotation(lcd.getRotation() ^ 1);
}
sprite.setColorDepth(2);
sprite.createSprite(3,lcd.height() / 8);
sprite.setPivot(1, lcd.height() / 4);
sprite.drawFastVLine(1, 0, sprite.height() , 3);
sprite.drawFastVLine(0, 2, sprite.height() - 4, 1);
meter1.pivot_x = lcd.width() >> 1;
meter1.pivot_y = (lcd.height() >> 2) + 2;
meter1.add = 0.01;
meter2.pivot_x = lcd.width() >> 2;
meter2.pivot_y = (lcd.height() * 3) >>2;
meter2.add = 0.11;
meter3.pivot_x = (lcd.width() * 3) >> 2;
meter3.pivot_y = (lcd.height() * 3) >> 2;
meter3.add = 0.57;
lcd.fillScreen(lcd.color565(0,0,127));
for (int i = 0; i < 20; i++) {
lcd.drawFastHLine(0, (i*2+1) * lcd.height() / 40, lcd.width(), 0xFFFF);
lcd.drawFastVLine((i*2+1) * lcd.width() / 40, 0, lcd.height() , 0xFFFF);
}
}
void loop(void)
{
meter1.drawGauge(sprite.color888(255, meter1.angle, 127));
meter2.drawGauge(sprite.color888(255 - meter2.angle, meter2.angle, 127));
meter3.drawGauge(sprite.color888(0, 127, meter3.angle));
}