Convert a SVG path to a Polygon by sampling the path, but also including all control points in the result. See http://phrogz.net/SVG/convert_path_to_polygon.xhtml

Point-Along-Path Interpolation

Two closed Catmull–Rom splines form two nested loops, and clicking anywhere on the SVG adds a circle that animates along the outer path. The example demonstrates SVG’s `getTotalLength` and `getPointAtLength` methods to compute positions along the path, driving each circle’s transform via a `transition.attrTween` that loops indefinitely. The code uses D3 v3, with `d3.svg.line` and a cardinal-closed interpolation to define the splines, and renders the animation as SVG circles and paths.

67% match

Untitled

A black cubic Bézier path is drawn on an SVG canvas using D3 v4, with its total length queried via `getTotalLength()`. The example marks two points sampled along the path at 50% and 78% of its length, using `getPointAtLength()` to position small red and blue circles. A green line is then constructed between the two points and extended backwards to the canvas edge, demonstrating how to compute a secant line from arbitrary positions along a vector path. The visualization uses inline SVG elements created through D3's selection API, with styling applied via a linked CSS file.

RRSSBDAE

64% match

Point-Along-Path Interpolation

This visualization demonstrates how to interpolate a point along an SVG path using the native `getTotalLength` and `getPointAtLength` methods. Two rectangular Catmull–Rom splines are rendered, with circles animated along each path using custom Vector and Runner classes that apply acceleration, velocity, and edge-bouncing behavior. The animation shows two points moving along the paths, with their motion influenced by simple physics (forces and mass) while remaining constrained to the path geometry. The example is built with D3 v3 and renders using SVG, with the circles styled with white strokes to stand out against the black paths.

64% match

Point-Along-Path Interpolation

A single point traverses a pair of Catmull–Rom splines, using the SVG `getTotalLength` and `getPointAtLength` methods to compute the point’s position along the path at each frame. The example also includes interactive behavior: clicking on the canvas creates new circles that move along the path with simple vector-based steering toward the mouse position. The visualization demonstrates how path interpolation can be combined with animated movement in D3.

63% match

Point-Along-Path Interpolation

This example uses SVG’s `getTotalLength` and `getPointAtLength` methods to animate a point along a Catmull–Rom spline. Two rectangular paths are drawn as black outlines, and a small white-stroked circle follows the second path, moving from corner to corner. The animation is driven by a custom Runner class that applies acceleration and velocity to the point, while the path’s geometry is sampled at successive lengths to position the circle. A small text label and the dark outlines keep the composition minimal. The technique demonstrates dynamic interpolation along a path, in contrast to static stroke-dash interpolation, and is implemented with D3 v3 and SVG animation.

Point-Along-Path Interpolation

Two closed Catmull–Rom splines are drawn as black outlines. Clicking anywhere on the SVG adds a colored circle that then animates along one of the two paths, using the SVG path methods `getTotalLength` and `getPointAtLength` to interpolate its position. A running counter in the top right displays the animation progress as a percentage, and each new click adds another circle with a randomly assigned color, creating multiple points moving simultaneously along the paths.

Point-Along-Path Interpolation

Two nested, closed Catmull–Rom splines define the paths in this SVG animation. Clicking anywhere adds a colored circle that first collapses to the inner path’s start, then follows the outer path via a tween that switches between the two paths partway through the animation. The code uses D3 v3’s `transition.attrTween` with the native SVG `getTotalLength` and `getPointAtLength` methods to interpolate each circle’s position, while a text element displays the tween progress as a percentage.

Point-Along-Path Interpolation

A small circle animates repeatedly along a fixed arc path, demonstrating how to interpolate a point’s position along an existing SVG path. The example uses D3 v3 and SVG’s native `getTotalLength` and `getPointAtLength` methods to compute the circle’s coordinates at each step. A `transition.attrTween` drives the animation, updating the circle’s `transform` attribute over five seconds, then restarting it via the transition’s `each("end")` event. The path itself is drawn with `d3.svg.arc` and rendered as a gray filled shape with a pointer cursor.

Mmbostock