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Update utils.ts (#989)

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Steve Ruiz 2022-09-19 16:54:53 +01:00 committed by GitHub
parent 0e8e000f79
commit 31f0f02adf
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GPG key ID: 4AEE18F83AFDEB23
1 changed files with 38 additions and 26 deletions
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64
packages/core/src/utils/utils.ts
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@ -1335,28 +1335,34 @@ left past the initial left edge) then swap points on that axis.
/**
* Turn an array of points into a path of quadradic curves.
* @param points - the points returned from perfect-freehand
*
* @param points The points returned from perfect-freehand
* @param closed Whether the stroke is closed
*/
static getSvgPathFromStroke(points: number[][]): string {
static getSvgPathFromStroke(points: number[][], closed = true): string {
const len = points.length
if (!len) {
return ''
if (len < 4) {
return ``
}
const first = points[0]
let result = `M${first[0].toFixed(3)},${first[1].toFixed(3)}Q`
let a = points[0]
let b = points[1]
const c = points[2]
for (let i = 0, max = len - 1; i < max; i++) {
const a = points[i]
const b = points[i + 1]
result += `${a[0].toFixed(3)},${a[1].toFixed(3)} ${average(a[0], b[0]).toFixed(3)},${average(
a[1],
b[1]
).toFixed(3)} `
let result = `M${a[0].toFixed(2)},${a[1].toFixed(2)} Q${b[0].toFixed(2)},${b[1].toFixed(
2
)} ${average(b[0], c[0]).toFixed(2)},${average(b[1], c[1]).toFixed(2)} T`
for (let i = 2, max = len - 1; i < max; i++) {
a = points[i]
b = points[i + 1]
result += `${average(a[0], b[0]).toFixed(2)},${average(a[1], b[1]).toFixed(2)} `
}
result += 'Z'
if (closed) {
result += 'Z'
}
return result
}
@ -1365,23 +1371,29 @@ left past the initial left edge) then swap points on that axis.
* Turn an array of stroke points into a path of quadradic curves.
* @param points - the stroke points returned from perfect-freehand
*/
static getSvgPathFromStrokePoints(points: StrokePoint[]): string {
static getSvgPathFromStrokePoints(points: StrokePoint[], closed = false): string {
const len = points.length
if (!len) {
return ''
if (len < 4) {
return ``
}
const first = points[0].point
let result = `M${first[0].toFixed(3)},${first[1].toFixed(3)}Q`
let a = points[0].point
let b = points[1].point
const c = points[2].point
for (let i = 0, max = len - 1; i < max; i++) {
const a = points[i].point
const b = points[i + 1].point
result += `${a[0].toFixed(3)},${a[1].toFixed(3)} ${average(a[0], b[0]).toFixed(3)},${average(
a[1],
b[1]
).toFixed(3)} `
let result = `M${a[0].toFixed(2)},${a[1].toFixed(2)} Q${b[0].toFixed(2)},${b[1].toFixed(
2
)} ${average(b[0], c[0]).toFixed(2)},${average(b[1], c[1]).toFixed(2)} T`
for (let i = 2, max = len - 1; i < max; i++) {
a = points[i].point
b = points[i + 1].point
result += `${average(a[0], b[0]).toFixed(2)},${average(a[1], b[1]).toFixed(2)} `
}
if (closed) {
result += 'Z'
}
return result