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updated docs

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Justin Lin
2017-06-01 16:51:56 +08:00
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docs/lib-shape_trapezium.md
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@@ -5,7 +5,7 @@ Returns shape points of an isosceles trapezoid. They can be used with xxx_extrud
## Parameters
- `length` : The base length of an isosceles trapezium. It also accepts a vector `[a, b]`. `a` is the bottom base and `b` is the top base.
- `h` : The height of the cylinder or cone.
- `h` : The height of the isosceles trapezium.
- `corner_r` : The circle radius which fits the edges of the bottom and the top.
- `$fa`, `$fs`, `$fn` : Used to control the corner fragments. Check [the circle module](https://en.wikibooks.org/wiki/OpenSCAD_User_Manual/Using_the_2D_Subsystem#circle) for more details.