diff --git a/package.json b/package.json
index 4197216..6c63963 100644
--- a/package.json
+++ b/package.json
@@ -45,6 +45,7 @@
"d3-geo": "3",
"d3-polygon": "3",
"d3-scale": "4",
+ "d3-scale-chromatic": "^3.1.0",
"d3-selection": "3",
"eslint": "8",
"htl": "^0.3.1",
diff --git a/src/contours.js b/src/contours.js
index 90faf82..dfe3580 100644
--- a/src/contours.js
+++ b/src/contours.js
@@ -1,4 +1,4 @@
-import {extent, nice, thresholdSturges, ticks} from "d3-array";
+import {blur, extent, nice, thresholdSturges, ticks} from "d3-array";
import {slice} from "./array.js";
import ascending from "./ascending.js";
import area from "./area.js";
@@ -6,7 +6,7 @@ import constant from "./constant.js";
import contains from "./contains.js";
import noop from "./noop.js";
-var cases = [
+const cases = [
[],
[[[1.0, 1.5], [0.5, 1.0]]],
[[[1.5, 1.0], [1.0, 1.5]]],
@@ -25,14 +25,20 @@ var cases = [
[]
];
+const blurEdges = 0.5;
+
+function clamp(x, lo, hi) {
+ return x < lo ? lo : x > hi ? hi : x;
+}
+
export default function() {
- var dx = 1,
- dy = 1,
- threshold = thresholdSturges,
- smooth = smoothLinear;
+ let dx = 1;
+ let dy = 1;
+ let threshold = thresholdSturges;
+ let smooth = smoothLinear;
function contours(values) {
- var tz = threshold(values);
+ let tz = threshold(values);
// Convert number of thresholds into uniform thresholds.
if (!Array.isArray(tz)) {
@@ -53,17 +59,46 @@ export default function() {
const v = value == null ? NaN : +value;
if (isNaN(v)) throw new Error(`invalid value: ${value}`);
- var polygons = [],
- holes = [];
+ // Don’t round the corners by clamping values on the edge. Note: to blur, we
+ // need to ensure that the values are valid numbers.
+ const bottom = Array.from(values.slice(0, dx), valid);
+ const top = Array.from(values.slice(-dx), valid);
+ const left = Array.from({length: dy}, (_, i) => valid(values[i * dx]));
+ const right = Array.from({length: dy}, (_, i) => valid(values[i * dx + dx - 1]));
+ blur(bottom, blurEdges);
+ blur(top, blurEdges);
+ blur(left, blurEdges);
+ blur(right, blurEdges);
+
+ function get(x, y) {
+ const x0 = clamp(x, 0, dx - 1);
+ const y0 = clamp(y, 0, dy - 1);
+ if (y < 0) return bottom[x0];
+ if (y >= dy) return top[x0];
+ if (x < 0) return left[y0];
+ if (x >= dx) return right[y0];
+ return values[x0 + y0 * dx];
+ }
- isorings(values, v, function(ring) {
- smooth(ring, values, v);
- if (area(ring) > 0) polygons.push([ring]);
- else holes.push(ring);
+ const polygons = [];
+ const holes = [];
+
+ isorings(get, value, function(ring) {
+ smooth(ring, get, value);
+ const r = [];
+ let x0, y0;
+ for (const point of ring) {
+ const x = clamp(point[0], 0, dx);
+ const y = clamp(point[1], 0, dy);
+ if (x !== x0 || y !== y0) r.push([(x0 = x), (y0 = y)]);
+ }
+ const a = area(r);
+ if (a > 0) polygons.push([r]);
+ else if (a < 0) holes.push(r);
});
holes.forEach(function(hole) {
- for (var i = 0, n = polygons.length, polygon; i < n; ++i) {
+ for (let i = 0, n = polygons.length, polygon; i < n; ++i) {
if (contains((polygon = polygons[i])[0], hole) !== -1) {
polygon.push(hole);
return;
@@ -80,51 +115,52 @@ export default function() {
// Marching squares with isolines stitched into rings.
// Based on https://github.com/topojson/topojson-client/blob/v3.0.0/src/stitch.js
- function isorings(values, value, callback) {
- var fragmentByStart = new Array,
- fragmentByEnd = new Array,
- x, y, t0, t1, t2, t3;
+ function isorings(get, value, callback) {
+ const test = (x, y) => above(get(x, y), value);
+ const fragmentByStart = new Array;
+ const fragmentByEnd = new Array;
+ let x, y, t0, t1, t2, t3;
// Special case for the first row (y = -1, t2 = t3 = 0).
- x = y = -1;
- t1 = above(values[0], value);
+ x = y = -2;
+ t1 = test(-1, -1);
cases[t1 << 1].forEach(stitch);
- while (++x < dx - 1) {
- t0 = t1, t1 = above(values[x + 1], value);
+ while (++x < dx) {
+ t0 = t1, t1 = test(x + 1, -1);
cases[t0 | t1 << 1].forEach(stitch);
}
cases[t1 << 0].forEach(stitch);
// General case for the intermediate rows.
- while (++y < dy - 1) {
- x = -1;
- t1 = above(values[y * dx + dx], value);
- t2 = above(values[y * dx], value);
+ while (++y < dy) {
+ x = -2;
+ t1 = test(x + 1, y + 1);
+ t2 = test(x + 1, y);
cases[t1 << 1 | t2 << 2].forEach(stitch);
- while (++x < dx - 1) {
- t0 = t1, t1 = above(values[y * dx + dx + x + 1], value);
- t3 = t2, t2 = above(values[y * dx + x + 1], value);
+ while (++x < dx) {
+ t0 = t1, t1 = test(x + 1, y + 1);
+ t3 = t2, t2 = test(x + 1, y);
cases[t0 | t1 << 1 | t2 << 2 | t3 << 3].forEach(stitch);
}
cases[t1 | t2 << 3].forEach(stitch);
}
// Special case for the last row (y = dy - 1, t0 = t1 = 0).
- x = -1;
- t2 = values[y * dx] >= value;
+ x = -2;
+ t2 = test(x, y);
cases[t2 << 2].forEach(stitch);
- while (++x < dx - 1) {
- t3 = t2, t2 = above(values[y * dx + x + 1], value);
+ while (++x < dx) {
+ t3 = t2, t2 = test(x + 1, y);
cases[t2 << 2 | t3 << 3].forEach(stitch);
}
cases[t2 << 3].forEach(stitch);
function stitch(line) {
- var start = [line[0][0] + x, line[0][1] + y],
- end = [line[1][0] + x, line[1][1] + y],
- startIndex = index(start),
- endIndex = index(end),
- f, g;
+ const start = [line[0][0] + x, line[0][1] + y];
+ const end = [line[1][0] + x, line[1][1] + y];
+ const startIndex = index(start);
+ const endIndex = index(end);
+ let f, g;
if (f = fragmentByEnd[startIndex]) {
if (g = fragmentByStart[endIndex]) {
delete fragmentByEnd[f.end];
@@ -165,19 +201,15 @@ export default function() {
return point[0] * 2 + point[1] * (dx + 1) * 4;
}
- function smoothLinear(ring, values, value) {
+ function smoothLinear(ring, get, value) {
ring.forEach(function(point) {
- var x = point[0],
- y = point[1],
- xt = x | 0,
- yt = y | 0,
- v1 = valid(values[yt * dx + xt]);
- if (x > 0 && x < dx && xt === x) {
- point[0] = smooth1(x, valid(values[yt * dx + xt - 1]), v1, value);
- }
- if (y > 0 && y < dy && yt === y) {
- point[1] = smooth1(y, valid(values[(yt - 1) * dx + xt]), v1, value);
- }
+ const x = point[0];
+ const y = point[1];
+ const xt = x | 0;
+ const yt = y | 0;
+ const v1 = valid(get(xt, yt));
+ if (x > 0 && x < dx && xt === x) point[0] = smooth1(x, valid(get(xt - 1, yt)), v1, value);
+ if (y > 0 && y < dy && yt === y) point[1] = smooth1(y, valid(get(xt, yt - 1)), v1, value);
});
}
@@ -185,7 +217,8 @@ export default function() {
contours.size = function(_) {
if (!arguments.length) return [dx, dy];
- var _0 = Math.floor(_[0]), _1 = Math.floor(_[1]);
+ const _0 = Math.floor(_[0]);
+ const _1 = Math.floor(_[1]);
if (!(_0 >= 0 && _1 >= 0)) throw new Error("invalid size");
return dx = _0, dy = _1, contours;
};
diff --git a/test/contours-test.js b/test/contours-test.js
index 6cfaa31..d7306be 100644
--- a/test/contours-test.js
+++ b/test/contours-test.js
@@ -252,7 +252,7 @@ it("contours(values) treats null, undefined, NaN and -Infinity as holes", () =>
1, 1, NaN, 1, 1, 1, 2, -Infinity, 2, 1,
1, 1, 1, 1, 1, 1, 2, 2, 2, 1,
1, 1, 1, 1, 1, 1, 1, 1, 1, 1
- ], 0), {"type":"MultiPolygon","value":0,"coordinates":[[[[10,9.5],[10,8.5],[10,7.5],[10,6.5],[10,5.5],[10,4.5],[10,3.5],[10,2.5],[10,1.5],[10,0.5],[9.5,0],[8.5,0],[7.5,0],[6.5,0],[5.5,0],[4.5,0],[3.5,0],[2.5,0],[1.5,0],[0.5,0],[0,0.5],[0,1.5],[0,2.5],[0,3.5],[0,4.5],[0,5.5],[0,6.5],[0,7.5],[0,8.5],[0,9.5],[0.5,10],[1.5,10],[2.5,10],[3.5,10],[4.5,10],[5.5,10],[6.5,10],[7.5,10],[8.5,10],[9.5,10],[10,9.5]],[[1.5,2.5],[0.5,1.5],[1.5,0.5],[2.5,1.5],[1.5,2.5]],[[3.5,5.5],[2.5,4.5],[3.5,3.5],[4.5,4.5],[3.5,5.5]],[[2.5,8.5],[1.5,7.5],[2.5,6.5],[3.5,7.5],[2.5,8.5]],[[7.5,8.5],[6.5,7.5],[7.5,6.5],[8.5,7.5],[7.5,8.5]]]]});
+ ], 0), {"type":"MultiPolygon","value":0,"coordinates":[[[[10,10],[10,9.5],[10,8.5],[10,7.5],[10,6.5],[10,5.5],[10,4.5],[10,3.5],[10,2.5],[10,1.5],[10,0.5],[10,0],[9.5,0],[8.5,0],[7.5,0],[6.5,0],[5.5,0],[4.5,0],[3.5,0],[2.5,0],[1.5,0],[0.5,0],[0,0],[0,0.5],[0,1.5],[0,2.5],[0,3.5],[0,4.5],[0,5.5],[0,6.5],[0,7.5],[0,8.5],[0,9.5],[0,10],[0.5,10],[1.5,10],[2.5,10],[3.5,10],[4.5,10],[5.5,10],[6.5,10],[7.5,10],[8.5,10],[9.5,10],[10,10]],[[1.5,2.5],[0.5,1.5],[1.5,0.5],[2.5,1.5],[1.5,2.5]],[[3.5,5.5],[2.5,4.5],[3.5,3.5],[4.5,4.5],[3.5,5.5]],[[2.5,8.5],[1.5,7.5],[2.5,6.5],[3.5,7.5],[2.5,8.5]],[[7.5,8.5],[6.5,7.5],[7.5,6.5],[8.5,7.5],[7.5,8.5]]]]});
});
it("contours(values) returns the expected result for a +Infinity value", () => {
diff --git a/test/data/volcano.json b/test/data/volcano.json
new file mode 100644
index 0000000..270f6c9
--- /dev/null
+++ b/test/data/volcano.json
@@ -0,0 +1 @@
+{"width":87,"height":61,"values":[103,104,104,105,105,106,106,106,107,107,106,106,105,105,104,104,104,104,105,107,107,106,105,105,107,108,109,110,110,110,110,110,110,109,109,109,109,109,109,108,107,107,107,107,106,106,105,104,104,104,104,104,104,104,103,103,103,103,102,102,101,101,100,100,100,100,100,99,98,97,97,96,96,96,96,96,96,96,95,95,95,94,94,94,94,94,94,104,104,105,105,106,106,107,107,107,107,107,107,107,106,106,106,106,106,106,108,108,108,106,106,108,109,110,110,112,112,113,112,111,110,110,110,110,109,109,109,108,107,107,107,107,106,106,105,104,104,104,104,104,104,104,103,103,103,103,102,102,101,101,100,100,100,100,99,99,98,97,97,96,96,96,96,96,96,96,95,95,95,94,94,94,94,94,104,105,105,106,106,107,107,108,108,108,108,108,108,108,108,108,108,108,108,108,110,110,110,110,110,110,110,111,113,115,116,115,113,112,110,110,110,110,110,110,109,108,108,108,108,107,106,105,105,105,105,105,105,104,104,104,104,103,103,103,102,102,102,101,100,100,100,99,99,98,97,97,96,96,96,96,96,96,96,96,95,95,94,94,94,94,94,105,105,106,106,107,107,108,108,109,109,109,109,109,110,110,110,110,110,110,110,111,112,115,115,115,115,115,116,116,117,119,118,117,116,114,113,112,110,110,110,110,110,110,109,109,108,107,106,106,106,106,106,105,105,105,104,104,104,103,103,103,102,102,102,101,100,100,99,99,98,97,97,96,96,96,96,96,96,96,96,95,95,94,94,94,94,94,105,106,106,107,107,108,108,109,109,110,110,110,110,111,110,110,110,110,111,114,115,116,121,121,121,121,121,122,123,124,124,123,121,119,118,117,115,114,112,111,110,110,110,110,110,110,109,109,108,109,107,107,106,106,105,105,104,104,104,104,103,103,102,102,102,101,100,100,99,99,98,97,96,96,96,96,96,96,96,96,95,95,94,94,94,94,94,106,106,107,107,107,108,109,109,110,110,111,111,112,113,112,111,111,112,115,118,118,119,126,128,128,127,128,128,129,130,129,128,127,125,122,120,118,117,115,114,112,110,110,110,110,110,111,110,110,110,109,109,108,107,106,105,105,105,104,104,104,103,103,102,102,102,101,100,99,99,98,97,96,96,96,96,96,96,96,96,95,95,94,94,94,94,94,106,107,107,108,108,108,109,110,110,111,112,113,114,115,114,115,116,116,119,123,125,130,133,134,134,134,134,135,135,136,135,134,132,130,128,124,121,119,118,116,114,112,111,111,111,112,112,111,110,110,110,109,108,108,107,108,107,106,105,104,104,104,103,103,103,102,101,100,99,99,98,97,96,96,96,96,96,96,96,96,95,95,95,94,94,94,94,107,107,108,108,109,109,110,110,112,113,114,115,116,117,117,120,120,121,123,129,134,136,138,139,139,139,140,142,142,141,141,140,137,134,131,127,124,122,120,118,117,115,113,114,113,114,114,113,112,111,110,110,109,108,107,106,105,105,105,104,104,104,103,103,103,101,100,100,99,99,98,97,96,96,96,96,96,96,96,96,96,95,95,94,94,94,94,107,108,108,109,109,110,111,112,114,115,116,117,118,119,121,125,125,127,131,136,140,141,142,144,144,145,148,149,148,147,146,144,140,138,136,130,127,125,123,121,119,118,117,117,116,116,116,115,114,113,113,111,110,109,108,107,106,105,105,103,103,102,102,102,103,101,100,100,100,99,98,98,97,96,96,96,96,96,96,96,96,95,95,95,94,94,94,107,108,109,109,110,110,110,113,115,117,118,119,120,123,126,129,131,134,139,142,144,145,147,148,150,152,154,154,153,154,151,149,146,143,140,136,130,128,126,124,122,121,120,119,118,117,117,117,116,116,115,113,112,110,109,108,107,106,106,105,104,103,102,101,101,100,100,100,100,99,99,98,97,96,96,96,96,96,96,96,96,95,95,95,94,94,94,107,108,109,109,110,110,110,112,115,117,119,122,125,127,130,133,137,141,143,145,148,149,152,155,157,159,160,160,161,162,159,156,153,149,146,142,139,134,130,128,126,125,122,120,120,120,119,119,119,118,117,115,113,111,110,110,109,108,107,106,106,105,104,104,103,102,100,100,100,99,99,98,97,96,96,96,96,96,96,96,96,95,95,95,95,94,94,108,108,109,109,110,110,110,112,115,118,121,125,128,131,134,138,141,145,147,149,152,157,160,161,163,166,169,170,170,171,168,162,158,155,152,148,144,140,136,132,129,127,124,122,121,120,120,120,120,120,119,117,115,113,110,110,110,110,109,108,108,107,107,106,105,104,102,100,100,100,99,98,97,96,96,96,96,96,96,96,96,96,95,95,95,94,94,108,109,109,110,110,111,112,114,117,120,124,128,131,135,138,142,145,149,152,155,158,163,166,167,170,173,175,175,175,173,171,169,164,160,156,153,149,144,140,136,131,129,126,124,123,123,122,121,120,120,120,119,117,115,111,110,110,110,110,110,109,109,110,109,108,106,103,101,100,100,100,98,97,96,96,96,96,96,96,96,96,96,95,95,95,95,94,108,109,110,110,110,113,114,116,119,122,126,131,134,138,141,145,149,152,156,160,164,169,171,174,177,175,178,179,177,175,174,172,168,163,160,157,151,147,143,138,133,130,128,125,125,124,123,122,121,121,120,120,118,116,115,111,110,110,110,110,113,114,113,112,110,107,105,102,100,100,100,98,97,96,96,96,96,96,96,96,96,96,96,95,95,95,94,108,109,110,110,112,115,116,118,122,125,129,133,137,140,144,149,152,157,161,165,169,173,176,179,179,180,180,180,178,178,176,175,171,165,163,160,153,148,143,139,135,132,129,128,127,125,124,124,123,123,122,122,120,118,117,118,115,117,118,118,119,117,116,115,112,109,107,105,100,100,100,100,97,96,96,96,96,96,96,96,96,96,96,95,95,95,95,108,109,110,111,114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diff --git a/test/output/grid2.svg b/test/output/grid2.svg
new file mode 100644
index 0000000..470fdf5
--- /dev/null
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@@ -0,0 +1,29 @@
+
\ No newline at end of file
diff --git a/test/output/matrixContours.svg b/test/output/matrixContours.svg
new file mode 100644
index 0000000..f900e1e
--- /dev/null
+++ b/test/output/matrixContours.svg
@@ -0,0 +1,29 @@
+
\ No newline at end of file
diff --git a/test/output/matrixContours1.svg b/test/output/matrixContours1.svg
new file mode 100644
index 0000000..f900e1e
--- /dev/null
+++ b/test/output/matrixContours1.svg
@@ -0,0 +1,29 @@
+
\ No newline at end of file
diff --git a/test/output/matrixContours2.svg b/test/output/matrixContours2.svg
new file mode 100644
index 0000000..79a9bd9
--- /dev/null
+++ b/test/output/matrixContours2.svg
@@ -0,0 +1,20 @@
+
\ No newline at end of file
diff --git a/test/output/matrixContours3.svg b/test/output/matrixContours3.svg
new file mode 100644
index 0000000..a86f09e
--- /dev/null
+++ b/test/output/matrixContours3.svg
@@ -0,0 +1,23 @@
+
\ No newline at end of file
diff --git a/test/output/matrixContours4Holes.svg b/test/output/matrixContours4Holes.svg
new file mode 100644
index 0000000..0954799
--- /dev/null
+++ b/test/output/matrixContours4Holes.svg
@@ -0,0 +1,25 @@
+
\ No newline at end of file
diff --git a/test/output/volcanoContours.svg b/test/output/volcanoContours.svg
new file mode 100644
index 0000000..a6edd49
--- /dev/null
+++ b/test/output/volcanoContours.svg
@@ -0,0 +1,27 @@
+
\ No newline at end of file
diff --git a/test/output/volcanoContoursRugged.svg b/test/output/volcanoContoursRugged.svg
new file mode 100644
index 0000000..815c7bd
--- /dev/null
+++ b/test/output/volcanoContoursRugged.svg
@@ -0,0 +1,27 @@
+
\ No newline at end of file
diff --git a/test/snapshots/index.js b/test/snapshots/index.js
index 53a663c..3a225fb 100644
--- a/test/snapshots/index.js
+++ b/test/snapshots/index.js
@@ -1,12 +1,13 @@
import {extent, ticks} from "d3-array";
import {axisBottom, axisLeft} from "d3-axis";
import {autoType} from "d3-dsv";
-import {tsv} from "d3-fetch";
-import {geoPath} from "d3-geo";
-import {scaleLinear} from "d3-scale";
-import {select} from "d3-selection";
+import {tsv, json} from "d3-fetch";
+import {geoIdentity, geoPath} from "d3-geo";
+import {scaleLinear, scaleSequential} from "d3-scale";
+import {interpolateTurbo} from "d3-scale-chromatic";
+import {create, select} from "d3-selection";
import {svg} from "htl";
-import {contourDensity} from "d3-contour";
+import {contours, contourDensity} from "d3-contour";
export async function faithfulContours() {
const faithful = await tsv("data/faithful.tsv", autoType);
@@ -80,3 +81,163 @@ export async function faithfulContour() {
${thresholds.map(t => svg``)}
`;
}
+
+function svgContours(data, {width = 500, smooth = true} = {}) {
+ const n = data.width;
+ const m = data.height;
+ const height = Math.round(m / n * width);
+ const path = geoPath().projection(geoIdentity().scale(width / n));
+ const color = scaleSequential(interpolateTurbo).domain(extent(data.values, (d) => isFinite(d) ? d : NaN)).nice();
+ const svg = create("svg")
+ .attr("width", width)
+ .attr("height", height)
+ .attr("viewBox", [0, 0, width, height])
+ .attr("style", "max-width: 100%; height: auto;");
+ svg.append("g")
+ .attr("stroke", "black")
+ .selectAll()
+ .data(color.ticks(20))
+ .join("path")
+ .attr("d", (d) => path(contours().smooth(smooth).size([n, m]).contour(data.values, d)))
+ .attr("fill", color);
+ return svg.node();
+}
+
+export async function volcanoContours() {
+ return svgContours(await json("data/volcano.json"), {width: 928});
+}
+
+export async function volcanoContoursRugged() {
+ return svgContours(await json("data/volcano.json"), {width: 928, smooth: false});
+}
+
+export function matrixContours1() {
+ const n = 16;
+ const data = {values: new Uint32Array(n * n), width: n, height: n};
+ for (let i = 0; i < n; ++i)
+ for (let j = 0; j < n; ++j)
+ data.values[i + n * j] = i * j;
+ return svgContours(data);
+}
+
+export function matrixContours2() {
+ const n = 16;
+ const data = {values: new Float32Array(n * n), width: n, height: n};
+ for (let i = 0; i < n; ++i)
+ for (let j = 0; j < n; ++j)
+ data.values[i + n * j] = i + j;
+ return svgContours(data);
+}
+
+export function matrixContours3() {
+ const n = 200;
+ const data = {values: new Float32Array(n * n), width: n, height: n};
+ for (let i = 0; i < n; ++i)
+ for (let j = 0; j < n; ++j)
+ data.values[i + n * j] = Math.sin(2 * i / n + 2 * (j / n)**2);
+ return svgContours(data);
+}
+
+
+export function matrixContours4Holes() {
+ const n = 200;
+ const data = {values: new Float32Array(n * n), width: n, height: n};
+ for (let i = 0; i < n; ++i)
+ for (let j = 0; j < n; ++j)
+ data.values[i + n * j] = Math.cos(2 * i / n + 2 * (j / n)**2);
+ data.values[1256] = NaN;
+ data.values[6900] = -Infinity;
+ data.values[18700] = +Infinity;
+ return svgContours(data);
+}
+
+export function grid2() {
+ return svgContours({
+ values: [
+ [
+ 3.931884, 3.949764, 3.967644, 3.985524, 4.003405, 4.021285,
+ 4.039165, 4.057045, 4.074925, 4.092805, 4.110685, 4.128565,
+ 4.146446, 4.164326, 4.182206, 4.200086
+ ],
+ [
+ 3.890766, 3.910306, 3.929845, 3.949385, 3.968925, 3.988464,
+ 4.008004, 4.027544, 4.047084, 4.066623, 4.086163, 4.105703,
+ 4.125243, 4.144782, 4.164322, 4.183862
+ ],
+ [
+ 3.849648, 3.870847, 3.892046, 3.913245, 3.934445, 3.955644,
+ 3.976844, 3.998043, 4.019242, 4.040442, 4.061641, 4.08284, 4.10404,
+ 4.125239, 4.146438, 4.167637
+ ],
+ [
+ 3.808529, 3.831388, 3.854247, 3.877106, 3.899965, 3.922824,
+ 3.945683, 3.968542, 3.991401, 4.014259, 4.037118, 4.059978,
+ 4.082836, 4.105695, 4.128554, 4.151413
+ ],
+ [
+ 3.767411, 3.791929, 3.816448, 3.840966, 3.865485, 3.890004,
+ 3.914522, 3.939041, 3.963559, 3.988078, 4.012596, 4.037115,
+ 4.061633, 4.086152, 4.11067, 4.135189
+ ],
+ [
+ 3.726293, 3.752471, 3.778649, 3.804827, 3.831005, 3.857183,
+ 3.883361, 3.909539, 3.935718, 3.961896, 3.988074, 4.014252, 4.04043,
+ 4.066608, 4.092786, 4.118965
+ ],
+ [
+ 3.685174, 3.713012, 3.74085, 3.768687, 3.796525, 3.824363, 3.852201,
+ 3.880038, 3.907876, 3.935714, 3.963552, 3.991389, 4.019227,
+ 4.047065, 4.074903, 4.10274
+ ],
+ [
+ 3.644056, 3.673553, 3.703051, 3.732548, 3.762045, 3.791543, 3.82104,
+ 3.850537, 3.880035, 3.909532, 3.939029, 3.968527, 3.998024,
+ 4.027521, 4.057019, 4.086516
+ ],
+ [
+ 3.602938, 3.634095, 3.665252, 3.696409, 3.727566, 3.758723,
+ 3.789879, 3.821036, 3.852193, 3.88335, 3.914507, 3.945664, 3.976821,
+ 4.007978, 4.039135, 4.070292
+ ],
+ [
+ 3.56182, 3.594636, 3.627453, 3.660269, 3.693086, 3.725902, 3.758719,
+ 3.791535, 3.824352, 3.857168, 3.889985, 3.922801, 3.955618,
+ 3.988434, 4.021251, 4.054067
+ ],
+ [
+ 3.520701, 3.555177, 3.589653, 3.62413, 3.658606, 3.693082, 3.727558,
+ 3.762034, 3.79651, 3.830986, 3.865462, 3.899939, 3.934415, 3.968891,
+ 4.003367, 4.037843
+ ],
+ [
+ 3.479583, 3.515719, 3.551854, 3.58799, 3.624126, 3.660262, 3.696397,
+ 3.732533, 3.768669, 3.804804, 3.84094, 3.877076, 3.913212, 3.949347,
+ 3.985483, 4.021619
+ ],
+ [
+ 3.438465, 3.47626, 3.514055, 3.551851, 3.589646, 3.627441, 3.665237,
+ 3.703032, 3.740827, 3.778623, 3.816418, 3.854213, 3.892009,
+ 3.929804, 3.967599, 4.005394
+ ],
+ [
+ 3.397346, 3.436801, 3.476256, 3.515711, 3.555166, 3.594621,
+ 3.634076, 3.673531, 3.712986, 3.752441, 3.791896, 3.83135, 3.870805,
+ 3.91026, 3.949715, 3.98917
+ ],
+ [
+ 3.356228, 3.397343, 3.438457, 3.479572, 3.520686, 3.561801,
+ 3.602915, 3.64403, 3.685144, 3.726259, 3.767373, 3.808488, 3.849602,
+ 3.890717, 3.931831, 3.972946
+ ],
+ [
+ 3.31511, 3.357884, 3.400658, 3.443432, 3.486206, 3.52898, 3.571754,
+ 3.614529, 3.657303, 3.700077, 3.742851, 3.785625, 3.828399,
+ 3.871173, 3.913947, 3.956722
+ ]
+ ]
+ .flat()
+ .map((d) => 5 * d),
+ width: 16,
+ height: 16
+ });
+}
\ No newline at end of file
diff --git a/yarn.lock b/yarn.lock
index 9ef1fc1..fe4efe9 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -438,7 +438,7 @@ d3-geo@3:
dependencies:
d3-array "2.5.0 - 3"
-"d3-interpolate@1.2.0 - 3":
+"d3-interpolate@1 - 3", "d3-interpolate@1.2.0 - 3":
version "3.0.1"
resolved "https://registry.yarnpkg.com/d3-interpolate/-/d3-interpolate-3.0.1.tgz#3c47aa5b32c5b3dfb56ef3fd4342078a632b400d"
integrity sha512-3bYs1rOD33uo8aqJfKP3JWPAibgw8Zm2+L9vBKEHJ2Rg+viTR7o5Mmv5mZcieN+FRYaAOWX5SJATX6k1PWz72g==
@@ -450,6 +450,14 @@ d3-polygon@3:
resolved "https://registry.yarnpkg.com/d3-polygon/-/d3-polygon-3.0.1.tgz#0b45d3dd1c48a29c8e057e6135693ec80bf16398"
integrity sha512-3vbA7vXYwfe1SYhED++fPUQlWSYTTGmFmQiany/gdbiWgU/iEyQzyymwL9SkJjFFuCS4902BSzewVGsHHmHtXg==
+d3-scale-chromatic@^3.1.0:
+ version "3.1.0"
+ resolved "https://registry.yarnpkg.com/d3-scale-chromatic/-/d3-scale-chromatic-3.1.0.tgz#34c39da298b23c20e02f1a4b239bd0f22e7f1314"
+ integrity sha512-A3s5PWiZ9YCXFye1o246KoscMWqf8BsD9eRiJ3He7C9OBaxKhAd5TFCdEx/7VbKtxxTsu//1mMJFrEt572cEyQ==
+ dependencies:
+ d3-color "1 - 3"
+ d3-interpolate "1 - 3"
+
d3-scale@4:
version "4.0.2"
resolved "https://registry.yarnpkg.com/d3-scale/-/d3-scale-4.0.2.tgz#82b38e8e8ff7080764f8dcec77bd4be393689396"