13 lines
1.3 KiB
Markdown
13 lines
1.3 KiB
Markdown
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# Tangents
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Tangents define the in and out curvature of a knot's segments.
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Tangents have a length and direction. Length determines how much that tangent affects the curvature of its respective segment. A large length value increases a tangent's influence on a segment's curvature and a small length decreases it. Direction determines where the tangent points to from its parent knot.
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A spline or knot's tangent mode determines how their tangents are calculated. If a knot is in the **Bezier** tangent mode, then you can directly manipulate its tangents in the Scene view. If a knot is in the [Auto](tangent-modes.md#auto-tangent-mode) or [Linear](tangent-modes.md#linear-tangent-mode) tangent mode, its tangents are calculated automatically.
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| **Topic** | **Description** |
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| :-------------------- |:---------------------------------------------------------------------|
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| **[Tangent modes](tangent-modes.md)** | Understand the different tangent modes. |
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| **[Select a tangent mode](select-tangent-mode.md)**| Select a tangent mode for a knot. |
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| **[Select a default tangent mode](select-default-tangent.md)**| Select the default tangent mode that the **Draw Splines Tool** uses. |
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