mirror of
https://github.com/excalidraw/excalidraw.git
synced 2025-10-31 19:04:35 +01:00
bbdcd30a73
* new collision api * isPointOnShape * removed redundant code * new collision methods in app * curve shape takes starting point * clean up geometry * curve rotation * freedraw * inside curve * improve ellipse inside check * ellipse distance func * curve inside * include frame name bounds * replace previous private methods for getting elements at x,y * arrow bound text hit detection * keep iframes on top * remove dependence on old collision methods from app * remove old collision functions * move some hit functions outside of app * code refactor * type * text collision from inside * fix context menu test * highest z-index collision * fix 1px away binding test * strictly less * remove unused imports * lint * 'ignore' resize flipping test * more lint fix * skip 'flips while resizing' test * more test * fix merge errors * fix selection in resize test * added a bit more comment --------- Co-authored-by: dwelle <5153846+dwelle@users.noreply.github.com>
67 lines
1.9 KiB
TypeScript
67 lines
1.9 KiB
TypeScript
import { Point, Polygon, GeometricShape } from "./geometry/shape";
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import {
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pointInEllipse,
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pointInPolygon,
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pointOnCurve,
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pointOnEllipse,
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pointOnLine,
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pointOnPolycurve,
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pointOnPolygon,
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pointOnPolyline,
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close,
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} from "./geometry/geometry";
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// check if the given point is considered on the given shape's border
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export const isPointOnShape = (
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point: Point,
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shape: GeometricShape,
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tolerance = 0,
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) => {
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// get the distance from the given point to the given element
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// check if the distance is within the given epsilon range
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switch (shape.type) {
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case "polygon":
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return pointOnPolygon(point, shape.data, tolerance);
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case "ellipse":
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return pointOnEllipse(point, shape.data, tolerance);
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case "line":
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return pointOnLine(point, shape.data, tolerance);
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case "polyline":
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return pointOnPolyline(point, shape.data, tolerance);
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case "curve":
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return pointOnCurve(point, shape.data, tolerance);
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case "polycurve":
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return pointOnPolycurve(point, shape.data, tolerance);
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default:
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throw Error(`shape ${shape} is not implemented`);
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}
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};
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// check if the given point is considered inside the element's border
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export const isPointInShape = (point: Point, shape: GeometricShape) => {
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switch (shape.type) {
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case "polygon":
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return pointInPolygon(point, shape.data);
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case "line":
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return false;
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case "curve":
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return false;
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case "ellipse":
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return pointInEllipse(point, shape.data);
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case "polyline": {
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const polygon = close(shape.data.flat()) as Polygon;
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return pointInPolygon(point, polygon);
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}
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case "polycurve": {
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return false;
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}
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default:
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throw Error(`shape ${shape} is not implemented`);
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}
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};
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// check if the given element is in the given bounds
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export const isPointInBounds = (point: Point, bounds: Polygon) => {
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return pointInPolygon(point, bounds);
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};
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