Function handleFileList

src/main.js:354–395

(fileList)

}

function handleFileList(fileList) {
  const file = fileList?.[0];
  if (!file) return;
  setStatus("Parsing CSV...");
  parseCSV(file)
    .then((result) => {
      state.dataset = {
        rows: result.rows,
        headers: result.headers
      };
      state.columnStats = result.columnStats;
      state.mapping.categoryStyles = createDefaultCategoryStyles();
      state.mapping.categoryColumn = "";
      state.mapping.layerColumn = "";
      state.mapping.visibleLayers = null;
      state.mapping.categoryUniverse = new Set();
      state.mapping.visibleCategories = null;
      state.mapping.layerStyles = createDefaultCategoryStyles();
      state.mapping.colorMode = "category";
      if (dom.colorMode) dom.colorMode.value = state.mapping.colorMode;
      state.mapping.pointScale = 1;
      state.mapping.pointScaleMin = 0;
      state.mapping.pointScaleMax = 1;
      state.mapping.labelScale = 1;
      state.mapping.labelScaleMin = 0;
      state.mapping.labelScaleMax = 1;
      syncPointScaleControls();
      syncLabelScaleControls();
      scene.requestFrame();
      setStatus(`Loaded ${result.rows.length} rows, ${result.headers.length} columns.`);
      refreshColumnSelects();
      autoAssignAxes();
      renderStyleConfig();
      renderLayerFilters();
      renderScene();
    })
    .catch((error) => {
      console.error(error);
      setStatus("Failed to parse CSV. Please check the file format.");
      resetUI();
    });
}

function refreshColumnSelects() {
  if (!state.dataset) {