Function trellisLayout

docs/tests/v2/es6/js/sanddance.js:104037–104096

(view, group, opt)

}

function trellisLayout(view, group, opt) {
  var views = gridLayoutGroups(group),
      groups = views.marks,
      bbox = opt.bounds === _constants.Flush ? boundFlush : boundFull,
      off = opt.offset,
      ncols = opt.columns || groups.length,
      nrows = ncols < 0 ? 1 : Math.ceil(groups.length / ncols),
      cells = nrows * ncols,
      x,
      y,
      x2,
      y2,
      anchor,
      band,
      offset; // -- initial grid layout

  const bounds = gridLayout(view, groups, opt); // -- layout grid headers and footers --
  // perform row header layout

  if (views.rowheaders) {
    band = get(opt.headerBand, _constants.Row, null);
    x = layoutHeaders(view, views.rowheaders, groups, ncols, nrows, -get(off, 'rowHeader'), min, 0, bbox, 'x1', 0, ncols, 1, band);
  } // perform column header layout


  if (views.colheaders) {
    band = get(opt.headerBand, _constants.Column, null);
    y = layoutHeaders(view, views.colheaders, groups, ncols, ncols, -get(off, 'columnHeader'), min, 1, bbox, 'y1', 0, 1, ncols, band);
  } // perform row footer layout


  if (views.rowfooters) {
    band = get(opt.footerBand, _constants.Row, null);
    x2 = layoutHeaders(view, views.rowfooters, groups, ncols, nrows, get(off, 'rowFooter'), max, 0, bbox, 'x2', ncols - 1, ncols, 1, band);
  } // perform column footer layout


  if (views.colfooters) {
    band = get(opt.footerBand, _constants.Column, null);
    y2 = layoutHeaders(view, views.colfooters, groups, ncols, ncols, get(off, 'columnFooter'), max, 1, bbox, 'y2', cells - ncols, 1, ncols, band);
  } // perform row title layout


  if (views.rowtitle) {
    anchor = get(opt.titleAnchor, _constants.Row);
    offset = get(off, 'rowTitle');
    offset = anchor === _constants.End ? x2 + offset : x - offset;
    band = get(opt.titleBand, _constants.Row, 0.5);
    layoutTitle(view, views.rowtitle, offset, 0, bounds, band);
  } // perform column title layout


  if (views.coltitle) {
    anchor = get(opt.titleAnchor, _constants.Column);
    offset = get(off, 'columnTitle');
    offset = anchor === _constants.End ? y2 + offset : y - offset;
    band = get(opt.titleBand, _constants.Column, 0.5);
    layoutTitle(view, views.coltitle, offset, 1, bounds, band);