59 lines
84 KiB
Markdown
59 lines
84 KiB
Markdown
---
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title: "segStart"
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excerpt: "Compute the starting point of the provided line segment."
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layout: manual
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---
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Compute the starting point of the provided line segment.
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```js
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segStart(tag: TagIdentifier) -> [number]
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```
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### Arguments
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| Name | Type | Description | Required |
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|----------|------|-------------|----------|
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| `tag` | [`TagIdentifier`](/docs/kcl/types#tag-identifier) | | Yes |
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### Returns
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`[number]`
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### Examples
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```js
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w = 15
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cube = startSketchOn('XY')
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|> startProfileAt([0, 0], %)
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|> line(end = [w, 0], tag = $line1)
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|> line(end = [0, w], tag = $line2)
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|> line(end = [-w, 0], tag = $line3)
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|> line(end = [0, -w], tag = $line4)
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|> close()
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|> extrude(length = 5)
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fn cylinder(radius, tag) {
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return startSketchOn('XY')
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|> startProfileAt([0, 0], %)
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|> circle({
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radius = radius,
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center = segStart(tag)
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}, %)
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|> extrude(length = radius)
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}
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cylinder(1, line1)
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cylinder(2, line2)
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cylinder(3, line3)
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cylinder(4, line4)
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```
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