91 lines
2.2 KiB
TypeScript
91 lines
2.2 KiB
TypeScript
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//% weight=100 color=#0fbc11 icon=""
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namespace datalog {
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let _headers: string[] = undefined;
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let _headersLength: number;
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let _values: number[];
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let _start: number;
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let _filename = "data.csv";
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let _storage: storage.Storage = storage.temporary;
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function clear() {
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_headers = undefined;
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_values = undefined;
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}
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function init() {
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if (!_headers) {
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_headers = [];
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_headersLength = 0;
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_start = control.millis();
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_storage.remove(_filename);
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}
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_values = [];
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}
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function commit() {
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// write row if any data
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if (_values && _values.length > 0) {
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// write headers for the first row
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if (!_headersLength) {
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_storage.appendCSVHeaders(_filename, _headers);
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_headersLength = _storage.size(_filename);
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}
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// commit row data
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_storage.appendCSV(_filename, _values);
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}
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// clear values
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_values = undefined;
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}
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/**
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* Starts a row of data
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*/
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//% weight=100
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//% blockId=datalogAddRow block="datalog add row"
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export function addRow(): void {
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commit();
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init();
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const s = (control.millis() - _start) / 1000;
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addValue("time (s)", s);
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}
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/**
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* Adds a cell to the row of data
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* @param name name of the cell, eg: "x"
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* @param value value of the cell, eg: 0
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*/
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//% weight=99
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//% blockId=datalogAddValue block="datalog add %name|=%value"
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export function addValue(name: string, value: number) {
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if (!_values) return;
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let i = _headers.indexOf(name);
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if (i < 0) {
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_headers.push(name);
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i = _headers.length - 1;
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}
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_values[i] = value;
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if (i > 0) // 0 is time
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console.logValue(name, value)
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}
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/**
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* Starts a new data logger for the given file
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*/
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//%
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export function setFile(fn: string) {
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_filename = fn;
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clear();
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}
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/**
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*
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* @param storage custom storage solution
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*/
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//%
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export function setStorage(storage: storage.Storage) {
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_storage = storage;
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clear();
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}
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}
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