draw-circle(wt-sprite)
wayland/wio-terminal-lcd/draw-circle(wt-sprite)
Draw a circle on a sprite.
draw-circle(wt-sprite)
@/draw-circle(wt-sprite)
Draw a circle on a sprite.
Sprite@/wt-sprite
A wt-sprite object.
Xnumber
X coordinate of the origin.
Ynumber
Y coordinate of the origin.
Rnumber
Radius
Colorxod/color/color
Color.
Fillboolean
True to fill circle with colour, False to draw outline only.
UPDpulse
Update.
Donepulse
Pulse on completion.
C++ implementation
#pragma XOD evaluate_on_pin disable
#pragma XOD evaluate_on_pin enable input_UPD
node {
void evaluate(Context ctx) {
// The node responds only if there is an input pulse
if (!isInputDirty<input_UPD>(ctx))
return;
// Get a pointer to the `TFT_eSprite sprite` class instance
auto spr = getValue<input_Sprite>(ctx);
XColor color24 = getValue<input_Color>(ctx);
uint16_t color16 = ((color24.r & 0xF8) << 8) | ((color24.g & 0xFC) << 3) | (color24.b >> 3);
if (getValue<input_Fill>(ctx)) {
spr -> fillCircle(getValue<input_X>(ctx), getValue<input_Y>(ctx), getValue<input_R>(ctx), color16);
} else {
spr -> drawCircle(getValue<input_X>(ctx), getValue<input_Y>(ctx), getValue<input_R>(ctx), color16);
}
emitValue<output_Done>(ctx, 1);
}
}