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7214: Fix Hexagon shape column span in block diagram #7262

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Merged
ashishjain0512 merged 4 commits into from
Apr 1, 2026
Merged

7214: Fix Hexagon shape column span in block diagram #7262

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7a14a1a
fix: hexagon shape column span
darshanr0107 Dec 19, 2025
13d9bfa
chore: add changeset
darshanr0107 Dec 19, 2025
121fa53
Merge branch 'develop' of https://github.com/mermaid-js/mermaid into …
darshanr0107 Mar 10, 2026
c94dba4
Merge branch 'develop' into fix-7214-hexagon-column-span
ashishjain0512 Apr 1, 2026
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5 changes: 5 additions & 0 deletions .changeset/grumpy-singers-cheer.md
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Original file line number Diff line number Diff line change
@@ -0,0 +1,5 @@
---
'mermaid': patch
---

fix: Ensure block diagram hexagon blocks respect column spanning syntax
12 changes: 12 additions & 0 deletions cypress/integration/rendering/block.spec.js
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Original file line number Diff line number Diff line change
Expand Up @@ -442,6 +442,18 @@ describe('Block diagram', () => {
block:group2:3
l m n o p q r
end
`,
{}
);
});

it('BL34: hexagon shape block should span correctly', () => {
imgSnapshotTest(
`block-beta
columns 3
A1{{"Opening tag"}} space A3{{"Closing tag"}}
B1["<tagname>"] B2["content"] B3["</tagname>"]
C{{"Element"}}:3
`,
{}
);
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4 changes: 2 additions & 2 deletions packages/mermaid/src/dagre-wrapper/nodes.js
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Original file line number Diff line number Diff line change
Expand Up @@ -96,9 +96,9 @@ const hexagon = async (parent, node) => {
);

const f = 4;
const h = bbox.height + node.padding;
const h = node.positioned ? node.height : bbox.height + node.padding;
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const m = h / f;
const w = bbox.width + 2 * m + node.padding;
const w = node.positioned ? node.width : bbox.width + 2 * m + node.padding;
const points = [
{ x: m, y: 0 },
{ x: w - m, y: 0 },
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