Change the width of the bar identified by Index. See patch: 05-example.
change-width
@/change-width
Change the width of the bar identified by Index. See patch: 05-example.
BChart@/bar-chart
A bar-chart object.
Indexbyte
Index of bar (first bar is indexed as 1).
Widthnumber
Relative width of bar.
UPDpulse
Update.
Donepulse
Pulse on completion.
To use the node in your project you should have the wayland/wio-terminal-bar-chart library installed. Use the “File → Add Library” menu item in XOD IDE if you don’t have it yet. See Using libraries for more info.
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_eSPI tft` class instance
auto barchart = getValue<input_BChart>(ctx);
uint8_t idx = getValue<input_Index>(ctx);
uint32_t width = getValue<input_Width>(ctx);
barchart -> changeWidth(idx, width);
emitValue<output_Done>(ctx, 1);
}
}