b34a2ee2ed
This is a flat (without history) import of (some of) the content from our markdown module. We've imported this without history because the repo contains our blog posts and showcases posts content prior to porting them to strapi. Since this contains many images, it would balloon the size of this repo to import the full history. Instead, please refer to the history of the (archived) markdown repo at: https://github.com/freesewing/markdown
1.9 KiB
1.9 KiB
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| pointOnBeam() |
bool utils.pointOnBeam(
Point point1,
Point point2,
Point check,
float precision = 1e6
)
Returns true if the point check lies on the endless line that goes through point1 and point2.
The fourth parameter controls the precision. Lower numbers make the check less precise.
Tweak precision only when needed
Typically, you don't need to worry about precision. But occasionally, you may get unexpected results because of floating point errors, rounding errors, or cubic bezier juggling.
When that happens, you can lower the precision so you get what you expect.
let {
Point,
points,
Path,
paths,
Snippet,
snippets,
utils
} = part.shorthand();
points.from1 = new Point(10, 10);
points.to1 = new Point(90, 60);
points.from2 = new Point(10, 30);
points.to2 = new Point(90, 80);
points.b1 = new Point(170, 110);
points.b2 = new Point(170, 130);
let scatter = [];
for (let i = 1; i < 36; i++) {
for (let j = 1; j < 27; j++) {
scatter.push(new Point(i * 10, j * 10));
}
}
let snippet;
for (let point of scatter) {
if (utils.pointOnBeam(points.from1, points.to1, point)) snippet = "notch";
else snippet = "bnotch";
snippets[part.getId()] = new Snippet(snippet, point);
if (utils.pointOnBeam(points.from2, points.to2, point, 0.01)) {
snippet = "notch";
} else snippet = "bnotch";
snippets[part.getId()] = new Snippet(snippet, point);
}
paths.line1 = new Path()
.move(points.from1)
.line(points.to1)
.attr("class", "fabric stroke-lg");
paths.lne1 = new Path()
.move(points.to1)
.line(points.b1)
.attr("class", "fabric dashed");
paths.line2 = new Path()
.move(points.from2)
.line(points.to2)
.attr("class", "fabric stroke-lg");
paths.lne2 = new Path()
.move(points.to2)
.line(points.b2)
.attr("class", "fabric dashed");