in sim/visuals/ltc.ts [412:447]
private updateTemperature() {
let state = this.board;
if (!state || !state.thermometerState.usesTemperature) return;
let tmin = -5;
let tmax = 50;
if (!this.thermometer) {
let gid = "gradient-thermometer";
this.thermometerGradient = svg.linearGradient(this.defs, gid);
this.thermometer = <SVGRectElement>svg.child(this.g, "rect", {
class: "sim-thermometer",
x: 120,
y: 110,
width: 20,
height: 160,
rx: 5, ry: 5,
fill: `url(#${gid})`
});
this.thermometerText = svg.child(this.g, "text", { class: 'sim-text no-drag', x: 58, y: 130 }) as SVGTextElement;
this.updateTheme();
let pt = this.element.createSVGPoint();
svg.buttonEvents(this.thermometer,
(ev) => {
let cur = svg.cursorPoint(pt, this.element, ev);
let t = Math.max(0, Math.min(1, (260 - cur.y) / 140))
state.thermometerState.temperature = Math.floor(tmin + t * (tmax - tmin));
this.updateTemperature();
}, ev => { }, ev => { })
}
let t = Math.max(tmin, Math.min(tmax, state.thermometerState.temperature))
let per = Math.floor((state.thermometerState.temperature - tmin) / (tmax - tmin) * 100)
svg.setGradientValue(this.thermometerGradient, 100 - per + "%");
this.thermometerText.textContent = t + "°C";
}