adding tutorial for spline #987
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davepagurek
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davepagurek
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One other thought: do we want to include a mention of beziers here for comparison? Maybe something about why you'd want to use one or the other even if we don't explain the whole bezier API?
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| ### Advanced Spline Shapes and Customization | ||
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| So far we've been drawing a single curve segment defined by four points. Now, let's explore more advanced possibilities: creating complex shapes from multiple spline segments, closing splines into continuous loops, and customizing the spline’s properties (like its tightness or endpoint handling) to achieve different effects. |
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I almost wonder if we should start with beginShape/endShape right after showing a single spline() as the main thing in the tutorial, since I imagine drawing bigger curves and smooth closed curves is a more common use than getting points/tangents along a single segment.
How do you feel about moving this + the closed loop bit up, giving them their own headings (e.g. "Spline Shapes" and "Closed Spline Loops" or something like that?) and then including splinePoint/splineTangent under the advanced section?
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cool thumbnail for the article btw! |
| *Splines vs. Bezier Curves* | ||
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| `bezier()` uses a start point, an end point, and extra control points that pull the curve but are not on the curve. | ||
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| `spline()` makes a curve that passes through all the points you give. | ||
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| Use `splines` when the curve must go through specific coordinates. | ||
| Use `Beziers` when you want to shape the curve with off-curve handles. |
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Btw, I already explain splines and bezier for comparison together. Do you mean adding more description to it?
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As before, I think a very simple image might be a helpful complement to the text
ksen0
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ksen0
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I really appreciate how in-depth this is! My only major request here is to complement the intro and initial descriptions with very, very beginner-friendly graphics, that require no knowledge of any trigonometry at all
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| ## Introduction | ||
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| Splines are smooth curves that interpolate through a series of points,forming gentle, flowing shapes. A spline is a smooth curve defined by a set of points, with a function that lets you compute additional points smoothly between them. This makes it easy to draw natural-looking curves without manually specifying tangents. |
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Minor: "A spline is a smooth curve defined by a set of points" -> "These curves are defined by a set of points"
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"with a function that lets you compute additional points smoothly between them" -> "and a function that determines how additional points are computed between them."
It might be better to give visual example right here of 2 different functions than to describe more verbally
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"This makes it easy to draw natural-looking curves without manually specifying tangents." -> remove "without manually specifying tangents" as the general style of tutorials is more beginner- and learner-friendly, so cannot assume "tangents" is understood
| *Splines vs. Bezier Curves* | ||
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| `bezier()` uses a start point, an end point, and extra control points that pull the curve but are not on the curve. | ||
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| `spline()` makes a curve that passes through all the points you give. | ||
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| Use `splines` when the curve must go through specific coordinates. | ||
| Use `Beziers` when you want to shape the curve with off-curve handles. |
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As before, I think a very simple image might be a helpful complement to the text
| import Callout from "../../../components/Callout/index.astro"; | ||
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| ## Introduction | ||
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One more comment: Though the title connects splines to curves and shapes, the introduction jumps right into splines. I think it would be very helpful to provide a very brief intro summary of when someone would need to learn about splines (when you want to make curvy shapes_
Thanks to @SableRaf for the input and for suggesting this wonderful video: https://www.youtube.com/watch?v=jvPPXbo87ds - maybe the introduction in this video specifically can be an inspiration, or at least a linked resource people could check out?
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This is a WIP PR and will try to complete it as soon as possible.