90 lines
3 KiB
TypeScript
90 lines
3 KiB
TypeScript
import { Store, UIEventSource } from "../../Logic/UIEventSource"
|
|
import { SpecialVisualization, SpecialVisualizationState } from "../SpecialVisualization"
|
|
import Histogram from "../BigComponents/Histogram"
|
|
import { Feature } from "geojson"
|
|
|
|
export class HistogramViz implements SpecialVisualization {
|
|
funcName = "histogram"
|
|
docs = "Create a histogram for a list of given values, read from the properties."
|
|
example =
|
|
'`{histogram(\'some_key\')}` with properties being `{some_key: ["a","b","a","c"]} to create a histogram'
|
|
args = [
|
|
{
|
|
name: "key",
|
|
doc: "The key to be read and to generate a histogram from",
|
|
required: true,
|
|
},
|
|
{
|
|
name: "title",
|
|
doc: "This text will be placed above the texts (in the first column of the visulasition)",
|
|
defaultValue: "",
|
|
},
|
|
{
|
|
name: "countHeader",
|
|
doc: "This text will be placed above the bars",
|
|
defaultValue: "",
|
|
},
|
|
{
|
|
name: "colors*",
|
|
doc: "(Matches all resting arguments - optional) Matches a regex onto a color value, e.g. `3[a-zA-Z+-]*:#33cc33`",
|
|
},
|
|
]
|
|
|
|
structuredExamples(): { feature: Feature; args: string[] }[] {
|
|
return [
|
|
{
|
|
feature: <Feature>{
|
|
type: "Feature",
|
|
properties: { values: `["a","b","a","b","b","b","c","c","c","d","d"]` },
|
|
geometry: {
|
|
type: "Point",
|
|
coordinates: [0, 0],
|
|
},
|
|
},
|
|
args: ["values"],
|
|
},
|
|
]
|
|
}
|
|
|
|
constr(
|
|
state: SpecialVisualizationState,
|
|
tagSource: UIEventSource<Record<string, string>>,
|
|
args: string[]
|
|
) {
|
|
let assignColors = undefined
|
|
if (args.length >= 3) {
|
|
const colors = [...args]
|
|
colors.splice(0, 3)
|
|
const mapping = colors.map((c) => {
|
|
const splitted = c.split(":")
|
|
const value = splitted.pop()
|
|
const regex = splitted.join(":")
|
|
return { regex: "^" + regex + "$", color: value }
|
|
})
|
|
assignColors = (key) => {
|
|
for (const kv of mapping) {
|
|
if (key.match(kv.regex) !== null) {
|
|
return kv.color
|
|
}
|
|
}
|
|
return undefined
|
|
}
|
|
}
|
|
|
|
const listSource: Store<string[]> = tagSource.map((tags) => {
|
|
try {
|
|
const value = tags[args[0]]
|
|
if (value === "" || value === undefined) {
|
|
return undefined
|
|
}
|
|
return JSON.parse(value)
|
|
} catch (e) {
|
|
console.error("Could not load histogram: parsing of the list failed: ", e)
|
|
return undefined
|
|
}
|
|
})
|
|
return new Histogram(listSource, args[1], args[2], {
|
|
assignColor: assignColors,
|
|
})
|
|
}
|
|
}
|