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#6080: Fix for issue with diamond intersections when using elk-layout

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This commit is contained in:
Knut Sveidqvist
2024-11-25 17:15:35 +01:00
parent 69973eaa02
commit c7ae08abc3
2 changed files with 133 additions and 38 deletions
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29
packages/mermaid-layout-elk/src/render.ts
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@@ -484,6 +484,8 @@ export const render = async (
const r3 = a1 * q1.x + b1 * q1.y + c1;
const r4 = a1 * q2.x + b1 * q2.y + c1;
const epsilon = 1e-6;
// Check signs of r3 and r4. If both point 3 and point 4 lie on
// same side of line 1, the line segments do not intersect.
if (r3 !== 0 && r4 !== 0 && sameSign(r3, r4)) {
@@ -502,7 +504,7 @@ export const render = async (
// Check signs of r1 and r2. If both point 1 and point 2 lie
// on same side of second line segment, the line segments do
// not intersect.
if (r1 !== 0 && r2 !== 0 && sameSign(r1, r2)) {
if (Math.abs(r1) < epsilon && Math.abs(r2) < epsilon && sameSign(r1, r2)) {
return /*DON'T_INTERSECT*/;
}
@@ -547,11 +549,11 @@ export const render = async (
{ x: x1 - w / 2, y: y1 },
];
log.debug(
`UIO diamondIntersection calc abc89:
`APA16 diamondIntersection calc abc89:
outsidePoint: ${JSON.stringify(outsidePoint)}
insidePoint : ${JSON.stringify(insidePoint)}
node : x:${bounds.x} y:${bounds.y} w:${bounds.width} h:${bounds.height}`,
polyPoints
node-bounds : x:${bounds.x} y:${bounds.y} w:${bounds.width} h:${bounds.height}`,
JSON.stringify(polyPoints)
);
const intersections = [];
@@ -564,8 +566,8 @@ export const render = async (
minY = Math.min(minY, entry.y);
});
// const left = x1 - w / 2;
// const top = y1 + h / 2;
const left = x1 - w / 2 - minX;
const top = y1 - h / 2 - minY;
for (let i = 0; i < polyPoints.length; i++) {
const p1 = polyPoints[i];
@@ -573,8 +575,8 @@ export const render = async (
const intersect = intersectLine(
bounds,
outsidePoint,
{ x: p1.x, y: p1.y },
{ x: p2.x, y: p2.y }
{ x: left + p1.x, y: top + p1.y },
{ x: left + p2.x, y: top + p2.y }
);
if (intersect) {
@@ -753,7 +755,6 @@ export const render = async (
}
}
});
log.debug('returning points', points);
return points;
};
@@ -968,17 +969,17 @@ export const render = async (
startNode.innerHTML
);
}
if (startNode.shape === 'diamond') {
if (startNode.shape === 'diamond' || startNode.shape === 'diam') {
edge.points.unshift({
x: startNode.x + startNode.width / 2 + offset.x,
y: startNode.y + startNode.height / 2 + offset.y,
});
}
if (endNode.shape === 'diamond') {
if (endNode.shape === 'diamond' || endNode.shape === 'diam') {
const x = endNode.x + endNode.width / 2 + offset.x;
// Add a point at the center of the diamond
if (
Math.abs(edge.points[edge.points.length - 1].y - endNode.y - offset.y) > 0.001 ||
Math.abs(edge.points[edge.points.length - 1].y - endNode.y - offset.y) > 0.01 ||
Math.abs(edge.points[edge.points.length - 1].x - x) > 0.001
) {
edge.points.push({
@@ -997,7 +998,7 @@ export const render = async (
height: startNode.height,
padding: startNode.padding,
},
startNode.shape === 'diamond'
startNode.shape === 'diamond' || startNode.shape === 'diam'
).reverse();
edge.points = cutPathAtIntersect(
@@ -1009,7 +1010,7 @@ export const render = async (
height: endNode.height,
padding: endNode.padding,
},
endNode.shape === 'diamond'
endNode.shape === 'diamond' || endNode.shape === 'diam'
);
const paths = insertEdge(