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authorAnton Tananaev <anton@traccar.org>2022-05-08 11:29:16 -0700
committerAnton Tananaev <anton@traccar.org>2022-05-08 11:29:16 -0700
commit15d7000b16e90db68f52931cc16dfa3ebbd74114 (patch)
treeac336a1ea285fdbc536f71556e473767d6e3c8e2 /modern/src/map/mapUtil.js
parentbe0409f7e855cecceb4e38db611afd3beca255ff (diff)
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Reorganize map folder
Diffstat (limited to 'modern/src/map/mapUtil.js')
-rw-r--r--modern/src/map/mapUtil.js90
1 files changed, 0 insertions, 90 deletions
diff --git a/modern/src/map/mapUtil.js b/modern/src/map/mapUtil.js
deleted file mode 100644
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--- a/modern/src/map/mapUtil.js
+++ /dev/null
@@ -1,90 +0,0 @@
-import { parse, stringify } from 'wellknown';
-import circle from '@turf/circle';
-
-export const loadImage = (url) => new Promise((imageLoaded) => {
- const image = new Image();
- image.onload = () => imageLoaded(image);
- image.src = url;
-});
-
-const canvasTintImage = (image, color) => {
- const canvas = document.createElement('canvas');
- canvas.width = image.width * devicePixelRatio;
- canvas.height = image.height * devicePixelRatio;
- canvas.style.width = `${image.width}px`;
- canvas.style.height = `${image.height}px`;
-
- const context = canvas.getContext('2d');
-
- context.save();
- context.fillStyle = color;
- context.globalAlpha = 1;
- context.fillRect(0, 0, canvas.width, canvas.height);
- context.globalCompositeOperation = 'destination-atop';
- context.globalAlpha = 1;
- context.drawImage(image, 0, 0, canvas.width, canvas.height);
- context.restore();
-
- return canvas;
-};
-
-export const prepareIcon = (background, icon, color) => {
- const canvas = document.createElement('canvas');
- canvas.width = background.width * devicePixelRatio;
- canvas.height = background.height * devicePixelRatio;
- canvas.style.width = `${background.width}px`;
- canvas.style.height = `${background.height}px`;
-
- const context = canvas.getContext('2d');
- context.drawImage(background, 0, 0, canvas.width, canvas.height);
-
- if (icon) {
- const iconRatio = 0.5;
- const imageWidth = canvas.width * iconRatio;
- const imageHeight = canvas.height * iconRatio;
- if (navigator.userAgent.indexOf('Firefox') > 0) {
- context.drawImage(icon, (canvas.width - imageWidth) / 2, (canvas.height - imageHeight) / 2, imageWidth, imageHeight);
- } else {
- context.drawImage(canvasTintImage(icon, color), (canvas.width - imageWidth) / 2, (canvas.height - imageHeight) / 2, imageWidth, imageHeight);
- }
- }
-
- return context.getImageData(0, 0, canvas.width, canvas.height);
-};
-
-export const reverseCoordinates = (it) => {
- if (!it) {
- return it;
- } if (Array.isArray(it)) {
- if (it.length === 2 && !Number.isNaN(it[0]) && !Number.isNaN(it[1])) {
- return [it[1], it[0]];
- }
- return it.map((it) => reverseCoordinates(it));
- }
- return {
- ...it,
- coordinates: reverseCoordinates(it.coordinates),
- };
-};
-
-export const geofenceToFeature = (item) => {
- if (item.area.indexOf('CIRCLE') > -1) {
- const coordinates = item.area.replace(/CIRCLE|\(|\)|,/g, ' ').trim().split(/ +/);
- const options = { steps: 32, units: 'meters' };
- const polygon = circle([Number(coordinates[1]), Number(coordinates[0])], Number(coordinates[2]), options);
- return {
- id: item.id,
- type: 'Feature',
- geometry: polygon.geometry,
- properties: { name: item.name },
- };
- }
- return {
- id: item.id,
- type: 'Feature',
- geometry: reverseCoordinates(parse(item.area)),
- properties: { name: item.name },
- };
-};
-
-export const geometryToArea = (geometry) => stringify(reverseCoordinates(geometry));