Method getCharacterSet

packages/sanddance/src/characterSet.ts:15–32

(stage: types.Stage)

    }

    public getCharacterSet(stage: types.Stage) {
        if (!this.chars) {
            const map: { [char: string]: true } = {};
            const addText = (text: string) => {
                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: Insight, newInsight: Insight) {