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Code Issues Releases Wiki Activity

Edits to splitting section. (#183)

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Simon Cozens
2019-06-11 01:06:11 +01:00
committed by Pomax
parent 8989cee2c6
commit 284cc28770
1 changed files with 2 additions and 2 deletions
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components/sections/splitting/content.en-GB.md
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@@ -1,6 +1,6 @@
# Splitting curves
With de Casteljau's algorithm we also find all the points we need to split up a Bézier curve into two, smaller curves, which taken together form the original curve. When we construct de Casteljau's skeleton for some value `t`, the procedure gives us all the points we need to split a curve at that `t` value: one curve is defined by all the inside skeleton points found prior to our on-curve point, with the other curve being defined by all the inside skeleton points after our on-curve point.
Using de Casteljau's algorithm, we can also find all the points we need to split up a Bézier curve into two, smaller curves, which taken together form the original curve. When we construct de Casteljau's skeleton for some value `t`, the procedure gives us all the points we need to split a curve at that `t` value: one curve is defined by all the inside skeleton points found prior to our on-curve point, with the other curve being defined by all the inside skeleton points after our on-curve point.
<Graphic title="Splitting a curve" setup={this.setupCubic} draw={this.drawSplit} />
@@ -29,7 +29,7 @@ function drawCurve(points[], t):
drawCurve(newpoints, t)
```
After running this function for some value `t`, the `left` and `right` arrays will contain all the coordinates for two new curves - one to the "left" of our `t` value, the other on the "right", of the same order as the original curve, and overlaid exactly on the original curve.
After running this function for some value `t`, the `left` and `right` arrays will contain all the coordinates for two new curves - one to the "left" of our `t` value, the other on the "right". These new curves will have the same order as the original curve, and can be overlaid exactly on the original curve.
</div>