初始

api/v1/common/tool/turf/turf.go

@@ -0,0 +1,26 @@
+package turf
+
+import (
+	_ "embed"
+	"github.com/dop251/goja"
+)
+
+//go:embed turf.min.js
+var turf_min string
+
+//go:embed turf.js
+var turf string
+var Tin func(wgs84 [][]string) [][]string
+var BooleanPointInPolygon func(point []float64, polygon [][]float64) bool
+
+//// 初始化
+//func init() {
+//	InitTurfjs()
+//}
+
+func InitTurfjs() {
+	vm := goja.New()
+	vm.RunString(turf_min + turf)
+	vm.ExportTo(vm.Get("Tin"), &Tin)
+	vm.ExportTo(vm.Get("BooleanPointInPolygon"), &BooleanPointInPolygon)
+}

api/v1/common/tool/turf/turf.js

@@ -0,0 +1,26 @@
+function Tin(points=[]) {
+    let arr = []
+    points.forEach(p=>{
+        arr.push(turf.point( [parseFloat(p[0]), parseFloat(p[1])]))
+    })
+    var tin = turf.tin(turf.featureCollection(arr));
+    let polylines=[]
+    tin.features.forEach((feature, index) => {
+        feature.geometry.coordinates.forEach((coordinate,) => {
+            polylines.push([
+                coordinate[0],
+                coordinate[1],
+                coordinate[2],
+            ])
+        })
+    })
+    return polylines
+    return JSON.stringify(polylines)
+}
+
+function BooleanPointInPolygon(point,polygon=[]) {
+    var pt = turf.point([point[0],point[1]]);
+    var poly = turf.polygon([polygon]);
+    var scaledPoly = turf.transformScale(poly, 2);
+    return turf.booleanPointInPolygon(pt, poly)
+}