diff --git a/.changeset/fresh-bears-doubt.md b/.changeset/fresh-bears-doubt.md
new file mode 100644
index 0000000000..911ef74c1d
--- /dev/null
+++ b/.changeset/fresh-bears-doubt.md
@@ -0,0 +1,5 @@
+---
+'mermaid': patch
+---
+
+fix: Intersection calculations for tilted cylinder/DAS when using handdrawn look. Some random seeds could cause the calculations to break.
diff --git a/cypress/platform/knsv2.html b/cypress/platform/knsv2.html
index 66fc0f2d31..a69804655e 100644
--- a/cypress/platform/knsv2.html
+++ b/cypress/platform/knsv2.html
@@ -89,70 +89,105 @@
+---
+config:
+ look: handDrawn
+ theme: default
+---
+flowchart LR
+ n00@{ shape: triangle, label: 'This is a label for triangle shape' }
+ n11@{ shape: sloped-rectangle, label: 'This is a label for sloped-rectangle shape' }
+ n22@{ shape: horizontal-cylinder, label: 'This is a label for horizontal-cylinder shape' }
+ n33@{ shape: flipped-triangle, label: 'This is a label for flipped-triangle shape' }
+ n44@{ shape: hourglass, label: 'This is a label for hourglass shape' }
+ n00 --> n11
+ n00 --> n22
+ n00 --> n33
+ n00 --> n44
+ n11 --> n22
+ n11 --> n33
+ n11 --> n44
+ n22 --> n33
+ n22 --> n44
+ n33 --> n44
+
+
+---
+config:
+ look: handDrawn
+ theme: default
+---
+flowchart LR
+ n22@{ shape: h-cyl }
+ n00 --> n11
+ n00 --> n22
+ n11 --> n22
+
+
flowchart LR
nA[Default] --> A@{ icon: 'fa:bell', form: 'rounded' }
-
+
flowchart LR
nA[Style] --> A@{ icon: 'fa:bell', form: 'rounded' }
style A fill:#f9f,stroke:#333,stroke-width:4px
-
+
flowchart LR
nA[Class] --> A@{ icon: 'fa:bell', form: 'rounded' }
A:::AClass
classDef AClass fill:#f9f,stroke:#333,stroke-width:4px
-
+
flowchart LR
nA[Class] --> A@{ icon: 'logos:aws', form: 'rounded' }
-
+
flowchart LR
nA[Default] --> A@{ icon: 'fa:bell', form: 'square' }
-
+
flowchart LR
nA[Style] --> A@{ icon: 'fa:bell', form: 'square' }
style A fill:#f9f,stroke:#333,stroke-width:4px
-
+
flowchart LR
nA[Class] --> A@{ icon: 'fa:bell', form: 'square' }
A:::AClass
classDef AClass fill:#f9f,stroke:#333,stroke-width:4px
-
+
flowchart LR
nA[Class] --> A@{ icon: 'logos:aws', form: 'square' }
-
+
flowchart LR
nA[Default] --> A@{ icon: 'fa:bell', form: 'circle' }
-
+
flowchart LR
nA[Style] --> A@{ icon: 'fa:bell', form: 'circle' }
style A fill:#f9f,stroke:#333,stroke-width:4px
-
+
flowchart LR
nA[Class] --> A@{ icon: 'fa:bell', form: 'circle' }
A:::AClass
classDef AClass fill:#f9f,stroke:#333,stroke-width:4px
-
+
flowchart LR
nA[Class] --> A@{ icon: 'logos:aws', form: 'circle' }
A:::AClass
classDef AClass fill:#f9f,stroke:#333,stroke-width:4px
-
+
flowchart LR
nA[Style] --> A@{ icon: 'logos:aws', form: 'circle' }
style A fill:#f9f,stroke:#333,stroke-width:4px
diff --git a/packages/mermaid/src/rendering-util/rendering-elements/shapes/tiltedCylinder.ts b/packages/mermaid/src/rendering-util/rendering-elements/shapes/tiltedCylinder.ts
index f8a2fb52b2..29f2c267f5 100644
--- a/packages/mermaid/src/rendering-util/rendering-elements/shapes/tiltedCylinder.ts
+++ b/packages/mermaid/src/rendering-util/rendering-elements/shapes/tiltedCylinder.ts
@@ -125,7 +125,7 @@ export async function tiltedCylinder(
) {
let x = rx * rx * (1 - (y * y) / (ry * ry));
if (x != 0) {
- x = Math.sqrt(x);
+ x = Math.sqrt(Math.abs(x));
}
x = rx - x;
if (point.x - (node.x ?? 0) > 0) {