The curveCardinal() method produces a cubic cardinal spline. The curve is also based on these cubic cardinal splines.
Syntax:
d3.curveCardinal()
Parameters: This method does not accept any parameters.
Return Value: This method does not return any value.
Example 1:
HTML
<!DOCTYPE html> < html > < meta charset = "utf-8" > < head > < script src = </ script > </ head > < body > < h1 style = "text-align:center;color:green;" > neveropen </ h1 > < center > < svg id = "gfg" width = "200" height = "200" ></ svg > </ center > < script > var data = [ { x: 0, y: 0 }, { x: 1, y: 3 }, { x: 2, y: 15 }, { x: 5, y: 15 }, { x: 6, y: 1 }, { x: 7, y: 5 }, { x: 8, y: 1 }]; var xScale = d3.scaleLinear() .domain([0, 8]).range([25, 175]); var yScale = d3.scaleLinear() .domain([0, 20]).range([175, 25]); var line = d3.line() .x((d) => xScale(d.x)) .y((d) => yScale(d.y)) .curve(d3.curveCardinal); d3.select("#gfg") .append("path") .attr("d", line(data)) .attr("fill", "none") .attr("stroke", "green"); </ script > </ body > </ html > |
Output:
Example 2:
HTML
<!DOCTYPE html> < html > < meta charset = "utf-8" > < head > < script src = </ script > </ head > < body > < h1 style = "text-align:center; color:green;" > neveropen </ h1 > < center > < svg id = "gfg" width = "200" height = "200" ></ svg > </ center > < script > var points = [ { xpoint: 25, ypoint: 150 }, { xpoint: 75, ypoint: 85 }, { xpoint: 100, ypoint: 115 }, { xpoint: 175, ypoint: 25 }, { xpoint: 200, ypoint: 150 }]; var Gen = d3.line() .x((p) => p.xpoint) .y((p) => p.ypoint) .curve(d3.curveCardinal); d3.select("#gfg") .append("path") .attr("d", Gen(points)) .attr("fill", "none") .attr("stroke", "green"); </ script > </ body > </ html > |
Output: