planning

node_modules/ol/geom/flat/transform.js

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+/**
+ * @module ol/geom/flat/transform
+ */
+/**
+ * @param {Array<number>} flatCoordinates Flat coordinates.
+ * @param {number} offset Offset.
+ * @param {number} end End.
+ * @param {number} stride Stride.
+ * @param {import("../../transform.js").Transform} transform Transform.
+ * @param {Array<number>} [opt_dest] Destination.
+ * @return {Array<number>} Transformed coordinates.
+ */
+export function transform2D(flatCoordinates, offset, end, stride, transform, opt_dest) {
+    var dest = opt_dest ? opt_dest : [];
+    var i = 0;
+    for (var j = offset; j < end; j += stride) {
+        var x = flatCoordinates[j];
+        var y = flatCoordinates[j + 1];
+        dest[i++] = transform[0] * x + transform[2] * y + transform[4];
+        dest[i++] = transform[1] * x + transform[3] * y + transform[5];
+    }
+    if (opt_dest && dest.length != i) {
+        dest.length = i;
+    }
+    return dest;
+}
+/**
+ * @param {Array<number>} flatCoordinates Flat coordinates.
+ * @param {number} offset Offset.
+ * @param {number} end End.
+ * @param {number} stride Stride.
+ * @param {number} angle Angle.
+ * @param {Array<number>} anchor Rotation anchor point.
+ * @param {Array<number>} [opt_dest] Destination.
+ * @return {Array<number>} Transformed coordinates.
+ */
+export function rotate(flatCoordinates, offset, end, stride, angle, anchor, opt_dest) {
+    var dest = opt_dest ? opt_dest : [];
+    var cos = Math.cos(angle);
+    var sin = Math.sin(angle);
+    var anchorX = anchor[0];
+    var anchorY = anchor[1];
+    var i = 0;
+    for (var j = offset; j < end; j += stride) {
+        var deltaX = flatCoordinates[j] - anchorX;
+        var deltaY = flatCoordinates[j + 1] - anchorY;
+        dest[i++] = anchorX + deltaX * cos - deltaY * sin;
+        dest[i++] = anchorY + deltaX * sin + deltaY * cos;
+        for (var k = j + 2; k < j + stride; ++k) {
+            dest[i++] = flatCoordinates[k];
+        }
+    }
+    if (opt_dest && dest.length != i) {
+        dest.length = i;
+    }
+    return dest;
+}
+/**
+ * Scale the coordinates.
+ * @param {Array<number>} flatCoordinates Flat coordinates.
+ * @param {number} offset Offset.
+ * @param {number} end End.
+ * @param {number} stride Stride.
+ * @param {number} sx Scale factor in the x-direction.
+ * @param {number} sy Scale factor in the y-direction.
+ * @param {Array<number>} anchor Scale anchor point.
+ * @param {Array<number>} [opt_dest] Destination.
+ * @return {Array<number>} Transformed coordinates.
+ */
+export function scale(flatCoordinates, offset, end, stride, sx, sy, anchor, opt_dest) {
+    var dest = opt_dest ? opt_dest : [];
+    var anchorX = anchor[0];
+    var anchorY = anchor[1];
+    var i = 0;
+    for (var j = offset; j < end; j += stride) {
+        var deltaX = flatCoordinates[j] - anchorX;
+        var deltaY = flatCoordinates[j + 1] - anchorY;
+        dest[i++] = anchorX + sx * deltaX;
+        dest[i++] = anchorY + sy * deltaY;
+        for (var k = j + 2; k < j + stride; ++k) {
+            dest[i++] = flatCoordinates[k];
+        }
+    }
+    if (opt_dest && dest.length != i) {
+        dest.length = i;
+    }
+    return dest;
+}
+/**
+ * @param {Array<number>} flatCoordinates Flat coordinates.
+ * @param {number} offset Offset.
+ * @param {number} end End.
+ * @param {number} stride Stride.
+ * @param {number} deltaX Delta X.
+ * @param {number} deltaY Delta Y.
+ * @param {Array<number>} [opt_dest] Destination.
+ * @return {Array<number>} Transformed coordinates.
+ */
+export function translate(flatCoordinates, offset, end, stride, deltaX, deltaY, opt_dest) {
+    var dest = opt_dest ? opt_dest : [];
+    var i = 0;
+    for (var j = offset; j < end; j += stride) {
+        dest[i++] = flatCoordinates[j] + deltaX;
+        dest[i++] = flatCoordinates[j + 1] + deltaY;
+        for (var k = j + 2; k < j + stride; ++k) {
+            dest[i++] = flatCoordinates[k];
+        }
+    }
+    if (opt_dest && dest.length != i) {
+        dest.length = i;
+    }
+    return dest;
+}
+//# sourceMappingURL=transform.js.map