@turf/kinks - npm Package Compare versions

Comparing version 7.1.0-alpha.7 to 7.1.0-alpha.70

dist/esm/index.d.ts

@@ -25,4 +25,4 @@ import { LineString, MultiLineString, Polygon, MultiPolygon, Feature, FeatureCollection, Point } from 'geojson';
  */
-declare function kinks<T extends LineString | MultiLineString | Polygon | MultiPolygon>(featureIn: Feature<T>): FeatureCollection<Point>;
+declare function kinks<T extends LineString | MultiLineString | Polygon | MultiPolygon>(featureIn: Feature<T> | T): FeatureCollection<Point>;
 
 export { kinks as default, kinks };

dist/esm/index.js

 // index.ts
 import { point } from "@turf/helpers";
-
-// lib/sweepline-intersections-export.ts
-import lib from "sweepline-intersections";
-var sweeplineIntersections = lib;
-
-// index.ts
 function kinks(featureIn) {
+  let coordinates;
+  let feature;
   const results = {
@@ -14,3 +10,16 @@ type: "FeatureCollection",
   };
-  if (featureIn.type === "Feature" && (featureIn.geometry.type === "Point" || featureIn.geometry.type === "MultiPoint")) {
+  if (featureIn.type === "Feature") {
+    feature = featureIn.geometry;
+  } else {
+    feature = featureIn;
+  }
+  if (feature.type === "LineString") {
+    coordinates = [feature.coordinates];
+  } else if (feature.type === "MultiLineString") {
+    coordinates = feature.coordinates;
+  } else if (feature.type === "MultiPolygon") {
+    coordinates = [].concat(...feature.coordinates);
+  } else if (feature.type === "Polygon") {
+    coordinates = feature.coordinates;
+  } else {
     throw new Error(
@@ -20,9 +29,77 @@ "Input must be a LineString, MultiLineString, Polygon, or MultiPolygon Feature or Geometry"
   }
-  const intersections = sweeplineIntersections(featureIn, false);
-  for (let i = 0; i < intersections.length; ++i) {
-    const intersection = intersections[i];
-    results.features.push(point([intersection[0], intersection[1]]));
-  }
+  coordinates.forEach((line1) => {
+    coordinates.forEach((line2) => {
+      for (let i = 0; i < line1.length - 1; i++) {
+        for (let k = i; k < line2.length - 1; k++) {
+          if (line1 === line2) {
+            if (Math.abs(i - k) === 1) {
+              continue;
+            }
+            if (
+              // segments are first and last segment of lineString
+              i === 0 && k === line1.length - 2 && // lineString is closed
+              line1[i][0] === line1[line1.length - 1][0] && line1[i][1] === line1[line1.length - 1][1]
+            ) {
+              continue;
+            }
+          }
+          const intersection = lineIntersects(
+            line1[i][0],
+            line1[i][1],
+            line1[i + 1][0],
+            line1[i + 1][1],
+            line2[k][0],
+            line2[k][1],
+            line2[k + 1][0],
+            line2[k + 1][1]
+          );
+          if (intersection) {
+            results.features.push(point([intersection[0], intersection[1]]));
+          }
+        }
+      }
+    });
+  });
   return results;
 }
+function lineIntersects(line1StartX, line1StartY, line1EndX, line1EndY, line2StartX, line2StartY, line2EndX, line2EndY) {
+  let denominator;
+  let a;
+  let b;
+  let numerator1;
+  let numerator2;
+  const result = {
+    x: null,
+    y: null,
+    onLine1: false,
+    onLine2: false
+  };
+  denominator = (line2EndY - line2StartY) * (line1EndX - line1StartX) - (line2EndX - line2StartX) * (line1EndY - line1StartY);
+  if (denominator === 0) {
+    if (result.x !== null && result.y !== null) {
+      return result;
+    } else {
+      return false;
+    }
+  }
+  a = line1StartY - line2StartY;
+  b = line1StartX - line2StartX;
+  numerator1 = (line2EndX - line2StartX) * a - (line2EndY - line2StartY) * b;
+  numerator2 = (line1EndX - line1StartX) * a - (line1EndY - line1StartY) * b;
+  a = numerator1 / denominator;
+  b = numerator2 / denominator;
+  result.x = line1StartX + a * (line1EndX - line1StartX);
+  result.y = line1StartY + a * (line1EndY - line1StartY);
+  if (a >= 0 && a <= 1) {
+    result.onLine1 = true;
+  }
+  if (b >= 0 && b <= 1) {
+    result.onLine2 = true;
+  }
+  if (result.onLine1 && result.onLine2) {
+    return [result.x, result.y];
+  } else {
+    return false;
+  }
+}
 var turf_kinks_default = kinks;
@@ -29,0 +106,0 @@ export {

package.json

 {
   "name": "@turf/kinks",
-  "version": "7.1.0-alpha.7+0ce6ecca0",
+  "version": "7.1.0-alpha.70+948cdafaf",
   "description": "turf kinks module",
@@ -54,3 +54,3 @@ "author": "Turf Authors",
   "devDependencies": {
-    "@turf/meta": "^7.1.0-alpha.7+0ce6ecca0",
+    "@turf/meta": "^7.1.0-alpha.70+948cdafaf",
     "@types/benchmark": "^2.1.5",
@@ -68,7 +68,7 @@ "@types/tape": "^4.2.32",
   "dependencies": {
-    "@turf/helpers": "^7.1.0-alpha.7+0ce6ecca0",
-    "sweepline-intersections": "^1.5.0",
+    "@turf/helpers": "^7.1.0-alpha.70+948cdafaf",
+    "@types/geojson": "^7946.0.10",
     "tslib": "^2.6.2"
   },
-  "gitHead": "0ce6ecca05829690270fec6d6bed2003495fe0ea"
+  "gitHead": "948cdafaf70606d2e27fcc79973fa48ee1182067"
 }

README.md

@@ -13,3 +13,3 @@ # @turf/kinks
 
-*   `featureIn` **[Feature][6]<([LineString][7] | [MultiLineString][8] | [MultiPolygon][9] | [Polygon][10])>** input feature
+*   `featureIn` **[Feature][6]<([LineString][1] | [MultiLineString][2] | [MultiPolygon][3] | [Polygon][4])>** input feature
 
@@ -33,3 +33,3 @@ ### Examples
 
-Returns **[FeatureCollection][11]<[Point][12]>** self-intersections
+Returns **[FeatureCollection][7]<[Point][5]>** self-intersections
 
@@ -48,14 +48,4 @@ [1]: https://tools.ietf.org/html/rfc7946#section-3.1.4
 
-[7]: https://tools.ietf.org/html/rfc7946#section-3.1.4
+[7]: https://tools.ietf.org/html/rfc7946#section-3.3
 
-[8]: https://tools.ietf.org/html/rfc7946#section-3.1.5
-
-[9]: https://tools.ietf.org/html/rfc7946#section-3.1.7
-
-[10]: https://tools.ietf.org/html/rfc7946#section-3.1.6
-
-[11]: https://tools.ietf.org/html/rfc7946#section-3.3
-
-[12]: https://tools.ietf.org/html/rfc7946#section-3.1.2
-
 <!-- This file is automatically generated. Please don't edit it directly. If you find an error, edit the source file of the module in question (likely index.js or index.ts), and re-run "yarn docs" from the root of the turf project. -->
@@ -62,0 +52,0 @@

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Fixed alerts

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Improved metrics

Total package byte prevSize

28056

increased by90.49%

Lines of code

236

increased by202.56%

Worsened metrics

Number of lines in readme file

67

decreased by-12.99%

Dependency changes

• + Added@types/geojson@^7946.0.10

• - Removedsweepline-intersections@^1.5.0

• - Removedsweepline-intersections@1.5.0(transitive)

• - Removedtinyqueue@2.0.3(transitive)

• Updated@turf/helpers@^7.1.0-alpha.70+948cdafaf