@visactor/vgrammar-venn
Version:
Venn layout transform for VGrammar
46 lines (45 loc) • 2.41 kB
JavaScript
import { disjointCluster, getBoundingBox, orientateCircles } from "./common";
export function normalizeSolution(solution, orientation, orientationOrder) {
null === orientation && (orientation = Math.PI / 2);
let circles = [];
for (const setId in solution) if (solution.hasOwnProperty(setId)) {
const previous = solution[setId];
circles.push({
x: previous.x,
y: previous.y,
radius: previous.radius,
setId: setId
});
}
const clusters = disjointCluster(circles);
for (let i = 0; i < clusters.length; ++i) {
orientateCircles(clusters[i], orientation, orientationOrder);
const bounds = getBoundingBox(clusters[i]);
clusters[i].size = (bounds.xRange.max - bounds.xRange.min) * (bounds.yRange.max - bounds.yRange.min),
clusters[i].bounds = bounds;
}
clusters.sort((function(a, b) {
return b.size - a.size;
})), circles = clusters[0];
let returnBounds = circles.bounds;
const spacing = (returnBounds.xRange.max - returnBounds.xRange.min) / 50;
function addCluster(cluster, right, bottom) {
if (!cluster) return;
const bounds = cluster.bounds;
let xOffset, yOffset, centering;
right ? xOffset = returnBounds.xRange.max - bounds.xRange.min + spacing : (xOffset = returnBounds.xRange.max - bounds.xRange.max,
centering = (bounds.xRange.max - bounds.xRange.min) / 2 - (returnBounds.xRange.max - returnBounds.xRange.min) / 2,
centering < 0 && (xOffset += centering)), bottom ? yOffset = returnBounds.yRange.max - bounds.yRange.min + spacing : (yOffset = returnBounds.yRange.max - bounds.yRange.max,
centering = (bounds.yRange.max - bounds.yRange.min) / 2 - (returnBounds.yRange.max - returnBounds.yRange.min) / 2,
centering < 0 && (yOffset += centering));
for (let j = 0; j < cluster.length; ++j) cluster[j].x += xOffset, cluster[j].y += yOffset,
circles.push(cluster[j]);
}
let index = 1;
for (;index < clusters.length; ) addCluster(clusters[index], !0, !1), addCluster(clusters[index + 1], !1, !0),
addCluster(clusters[index + 2], !0, !0), index += 3, returnBounds = getBoundingBox(circles);
const ret = {};
for (let i = 0; i < circles.length; ++i) ret[circles[i].setId] = circles[i];
return ret;
}
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