draw-vertical-line(wt-sprite)
wayland/wio-terminal-lcd/draw-vertical-line(wt-sprite)
Draw a vertical line on a sprite (quicker than draw-line node).
draw-vertical-line(wt-sprite)
@/draw-vertical-line(wt-sprite)
Draw a vertical line on a sprite (quicker than draw-line node).
Sprite@/wt-sprite
A wt-sprite object.
Xnumber
X coordinate of the start of the line.
Ynumber
Y coordinate of the start of the line.
Hnumber
Height (pixels)
Colorxod/color/color
Line color.
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);
spr -> drawFastVLine(getValue<input_X>(ctx), getValue<input_Y>(ctx), getValue<input_H>(ctx), color16);
emitValue<output_Done>(ctx, 1);
}
}