Method getCharacterSet

docs/app/js/sanddance-app.js:11033–11056

(stage)

        if (forceNewCharacterSet || needsNewCharacterSet(oldInsight, newInsight)) this.chars = undefined;
    }
    getCharacterSet(stage) {
        if (!this.chars) {
            const map = {};
            const addText = (text)=>{
                Array.from(text).forEach((char)=>{
                    map[char] = true;
                });
            };
            stage.textData.forEach((t)=>addText(t.text));
            const { x , y , z  } = stage.axes;
            [
                x,
                y,
                z
            ].forEach((axes)=>{
                axes.forEach((axis)=>{
                    if (axis.tickText) axis.tickText.forEach((t)=>addText(t.text));
                    if (axis.title) addText(axis.title.text);
                });
            });
            this.chars = Object.keys(map);
        }
        return this.chars;
    }
}
function needsNewCharacterSet(oldInsight, newInsight) {
    if (!oldInsight) return true;