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fix: adjust line start position for bidirectional arrows

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on-behalf-of: @Mermaid-Chart <hello@mermaidchart.com>
This commit is contained in:
omkarht
2025-11-11 12:29:10 +05:30
parent e7c78dec87
commit 0d1f6af383
1 changed files with 8 additions and 2 deletions
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10
packages/mermaid/src/diagrams/sequence/sequenceRenderer.ts
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@@ -648,9 +648,14 @@ const drawMessage = async function (diagram, msgModel, lineStartY: number, diagO
if (isBidirectional) {
// For bidirectional arrows, adjust the start position
if (startx < stopx) {
lineStartX = startx + SEQUENCE_NUMBER_RADIUS + (hasCentralConn ? 5 : 0);
lineStartX = startx + SEQUENCE_NUMBER_RADIUS * 2;
} else {
lineStartX = startx - SEQUENCE_NUMBER_RADIUS + (hasCentralConn ? -5 : 0);
lineStartX +=
msg?.centralConnection === diagObj.db.LINETYPE.CENTRAL_CONNECTION_DUAL ||
msg?.centralConnection === diagObj.db.LINETYPE.CENTRAL_CONNECTION_REVERSE
? -7.5
: 0;
}
line.attr('x1', lineStartX);
} else if (isReverseArrowType) {
@@ -1730,7 +1735,8 @@ const calculateCentralConnectionOffset = function (msg, diagObj, isArrowToRight)
}
if (
msg.centralConnection === CENTRAL_CONNECTION_DUAL &&
(msg.centralConnection === CENTRAL_CONNECTION_REVERSE ||
msg.centralConnection === CENTRAL_CONNECTION_DUAL) &&
(msg.type === BIDIRECTIONAL_SOLID || msg.type === BIDIRECTIONAL_DOTTED)
) {
offset += isArrowToRight ? 0 : -CENTRAL_CONNECTION_BIDIRECTIONAL_OFFSET;