Refactor layers rendering (#1120)

* feat: render states - use global fn * feat: render states - separate pole detection from layer render * feat: render provinces * chore: unify drawFillWithGap * refactor: drawIce * refactor: drawBorders * refactor: drawHeightmap * refactor: drawTemperature * refactor: drawBiomes * refactor: drawPrec * refactor: drawPrecipitation * refactor: drawPopulation * refactor: drawCells * refactor: geColor * refactor: drawMarkers * refactor: drawScaleBar * refactor: drawScaleBar * refactor: drawMilitary * refactor: pump version to 1.104.00 * refactor: pump version to 1.104.00 * refactor: drawCoastline and createDefaultRuler * refactor: drawCoastline * refactor: Features module start * refactor: features - define distance fields * feat: drawFeatures * feat: drawIce don't hide * feat: detect coastline - fix issue with border feature * feat: separate labels rendering from generation process * feat: auto-update and restore layers * refactor - change layers * refactor - sort layers * fix: regenerate burgs to re-render layers * fix: getColor is not defined * fix: burgs overview - don't auto-show labels on hover * fix: redraw population on change * refactor: improve tooltip logic for burg labels and icons * chore: pump version to 1.104.0 * fefactor: edit coastline and lake * fix: minot fixes * fix: submap --------- Co-authored-by: Azgaar <azgaar.fmg@yandex.com>
2025-12-17 09:41:24 +01:00 · 2024-09-20 12:20:27 +02:00 · 2024-09-20 12:20:27 +02:00 · 05de284e02
commit 05de284e02
parent ec993d1a9b
52 changed files with 2473 additions and 2713 deletions
--- a/modules/renderers/draw-temperature.js
+++ b/modules/renderers/draw-temperature.js
@ -0,0 +1,104 @@
+"use strict";
+
+function drawTemperature() {
+  TIME && console.time("drawTemperature");
+
+  temperature.selectAll("*").remove();
+  lineGen.curve(d3.curveBasisClosed);
+  const scheme = d3.scaleSequential(d3.interpolateSpectral);
+
+  const tMax = +byId("temperatureEquatorOutput").max;
+  const tMin = +byId("temperatureEquatorOutput").min;
+  const delta = tMax - tMin;
+
+  const {cells, vertices} = grid;
+  const n = cells.i.length;
+
+  const checkedCells = new Uint8Array(n);
+  const addToChecked = cellId => (checkedCells[cellId] = 1);
+
+  const min = d3.min(cells.temp);
+  const max = d3.max(cells.temp);
+  const step = Math.max(Math.round(Math.abs(min - max) / 5), 1);
+
+  const isolines = d3.range(min + step, max, step);
+  const chains = [];
+  const labels = []; // store label coordinates
+
+  for (const cellId of cells.i) {
+    const t = cells.temp[cellId];
+    if (checkedCells[cellId] || !isolines.includes(t)) continue;
+
+    const startingVertex = findStart(cellId, t);
+    if (!startingVertex) continue;
+    checkedCells[cellId] = 1;
+
+    const ofSameType = cellId => cells.temp[cellId] >= t;
+    const chain = connectVertices({vertices, startingVertex, ofSameType, addToChecked});
+    const relaxed = chain.filter((v, i) => i % 4 === 0 || vertices.c[v].some(c => c >= n));
+    if (relaxed.length < 6) continue;
+
+    const points = relaxed.map(v => vertices.p[v]);
+    chains.push([t, points]);
+    addLabel(points, t);
+  }
+
+  // min temp isoline covers all graph
+  temperature
+    .append("path")
+    .attr("d", `M0,0 h${graphWidth} v${graphHeight} h${-graphWidth} Z`)
+    .attr("fill", scheme(1 - (min - tMin) / delta))
+    .attr("stroke", "none");
+
+  for (const t of isolines) {
+    const path = chains
+      .filter(c => c[0] === t)
+      .map(c => round(lineGen(c[1])))
+      .join("");
+    if (!path) continue;
+    const fill = scheme(1 - (t - tMin) / delta),
+      stroke = d3.color(fill).darker(0.2);
+    temperature.append("path").attr("d", path).attr("fill", fill).attr("stroke", stroke);
+  }
+
+  const tempLabels = temperature.append("g").attr("id", "tempLabels").attr("fill-opacity", 1);
+  tempLabels
+    .selectAll("text")
+    .data(labels)
+    .enter()
+    .append("text")
+    .attr("x", d => d[0])
+    .attr("y", d => d[1])
+    .text(d => convertTemperature(d[2]));
+
+  // find cell with temp < isotherm and find vertex to start path detection
+  function findStart(i, t) {
+    if (cells.b[i]) return cells.v[i].find(v => vertices.c[v].some(c => c >= n)); // map border cell
+    return cells.v[i][cells.c[i].findIndex(c => cells.temp[c] < t || !cells.temp[c])];
+  }
+
+  function addLabel(points, t) {
+    const xCenter = svgWidth / 2;
+
+    // add label on isoline top center
+    const tc =
+      points[d3.scan(points, (a, b) => a[1] - b[1] + (Math.abs(a[0] - xCenter) - Math.abs(b[0] - xCenter)) / 2)];
+    pushLabel(tc[0], tc[1], t);
+
+    // add label on isoline bottom center
+    if (points.length > 20) {
+      const bc =
+        points[d3.scan(points, (a, b) => b[1] - a[1] + (Math.abs(a[0] - xCenter) - Math.abs(b[0] - xCenter)) / 2)];
+      const dist2 = (tc[1] - bc[1]) ** 2 + (tc[0] - bc[0]) ** 2; // square distance between this and top point
+      if (dist2 > 100) pushLabel(bc[0], bc[1], t);
+    }
+  }
+
+  function pushLabel(x, y, t) {
+    if (x < 20 || x > svgWidth - 20) return;
+    if (y < 20 || y > svgHeight - 20) return;
+    labels.push([x, y, t]);
+  }
+
+  TIME && console.timeEnd("drawTemperature");
+}