node-red-contrib-tak-registration
Version:
A Node-RED node to register to TAK and to help wrap files as datapackages to send to TAK
56 lines (49 loc) • 1.94 kB
JavaScript
;Object.defineProperty(exports, "__esModule", {value: true});// index.ts
var _booleanintersects = require('@turf/boolean-intersects');
var _helpers = require('@turf/helpers');
function rectangleGrid(bbox, cellWidth, cellHeight, options = {}) {
const results = [];
const west = bbox[0];
const south = bbox[1];
const east = bbox[2];
const north = bbox[3];
const bboxWidth = east - west;
const cellWidthDeg = _helpers.convertLength.call(void 0, cellWidth, options.units, "degrees");
const bboxHeight = north - south;
const cellHeightDeg = _helpers.convertLength.call(void 0, cellHeight, options.units, "degrees");
const columns = Math.floor(Math.abs(bboxWidth) / cellWidthDeg);
const rows = Math.floor(Math.abs(bboxHeight) / cellHeightDeg);
const deltaX = (bboxWidth - columns * cellWidthDeg) / 2;
const deltaY = (bboxHeight - rows * cellHeightDeg) / 2;
let currentX = west + deltaX;
for (let column = 0; column < columns; column++) {
let currentY = south + deltaY;
for (let row = 0; row < rows; row++) {
const cellPoly = _helpers.polygon.call(void 0,
[
[
[currentX, currentY],
[currentX, currentY + cellHeightDeg],
[currentX + cellWidthDeg, currentY + cellHeightDeg],
[currentX + cellWidthDeg, currentY],
[currentX, currentY]
]
],
options.properties
);
if (options.mask) {
if (_booleanintersects.booleanIntersects.call(void 0, options.mask, cellPoly)) {
results.push(cellPoly);
}
} else {
results.push(cellPoly);
}
currentY += cellHeightDeg;
}
currentX += cellWidthDeg;
}
return _helpers.featureCollection.call(void 0, results);
}
var turf_rectangle_grid_default = rectangleGrid;
exports.default = turf_rectangle_grid_default; exports.rectangleGrid = rectangleGrid;
//# sourceMappingURL=index.cjs.map