heligeo

A library for Isochrone (Time-Distance) Analysis, Routing and Geoprocessing like Union, Intersection, Point Buffer, Line Buffer, Point with in Polygon(return points with in polygon sepratly), line aliasing(get multiple line parallel to linestring at certain distances).

• Isochrone
• Route
• Union
• Intersection
• PointBuffer
• LineBuffer
• PointWithInPolygon
• AliasLinestring

About Heliware

Heliware is a Web-GL Powered Geo-Spatial Analytics Platform for developer ,analytics & data Scientist that provides GIS, Web Mapping, and spatial data science tools which help companies to get InSite in just few click using AI, Data Science & Advance Geo-Processing.For advance library requirements please contact [email protected] .

Installation

Node Module

npm install heligeo

CDN

<script src="https://unpkg.com/[email protected]/dist/heligeo.js"></script>

Usage

Importing Module

import { Isochrone, Route, Union, Intersection, PointBuffer, LineBuffer, PointWithInPolygon, AliasLinestring } from heligeo

new Isochrone(params).loaded().then(res=>{
    console.log(res); // get your data here
})

OR

import * as Heligeo from 'heligeo'

new Heligeo.Isochrone(params).loaded().then(res=>{
    console.log(res); // get your data here
})

Cdn User

<script src="https://unpkg.com/[email protected]/dist/heligeo.js"></script>

<script>
new Heligeo.Isochrone(params).loaded().then((d) => {
      console.log(d); // get your data here
    });
</script>

Direction

• For using this libraray you need Api-Key, You can simply get it by signing up Heliware here.

• Please use the following table for params deatils of different analysis :

| Analysis Type | params | Example | |---------------|----------|---------| | Isochrone | (apikey,lat,long,mode) | ('your-api-key',28.456,78.45567,'drive') | | Route | (apikey,lnglats,mode) | new Route('your-api-key',[[88.3639, 22.5726],[72.8777, 19.076],...]) | | Union | (apikey,polygons) | ('your-api-key',[poly_1,poly_2,...]) | | Intersection | (apikey,polygons) | ('your-api-key',[poly_1,poly_2,...]) | | PointBuffer | (apikey,lnglats,radious) | ('your-api-key',[[88.3639, 22.5726],[72.8777, 19.076],...],20) | | LineBuffer | (apikey,linesCoordinates,radious) | ('your-api-key',[[[88.3639, 22.5726],[88.4143, 22.5797],...],[[88.2636, 22.5958],[88.4789, 22.7248],...],...],20) | | PointWithInPolygon | (apikey,points,polygons) | ('your-api-key',Point_GeoJson,[poly_1,poly_2,...]) | | AliasLinestring | (apikey,line,distance,number) | ('your-api-key',line_GeoJson,30,100) |

• For Isochrone & Route heligeo have mode param ie. transport-mode, You can selectet between 4 below mentined modes.

  • drive
  • walk
  • bike
  • cycling

• For Union, Intersection & PointWithInPolygon polygons param is Array of FeatureCollection/Geojson Object thats contain a single Polygon Feature.

poly_1 = {
            type: "FeatureCollection",
            features: [
              {
                type: "Feature",
                geometry: {
                  type: "Polygon",
                  coordinates: [
                    [
                      [77.4029103817493, 28.36918941103731, 0.0],
                      [77.40184896262588, 28.3722403721131, 0.0],
                      [77.39922678901301, 28.37081966588294, 0.0], 
                      [77.40030856003351, 28.36816909494472, 0.0],
                      [74029103817493, 28.36918941103731, 0.0],
                    ],
                  ],
                },
              },
            ]
        }

• For PointBuffer & LineBuffer radious param denotes distance for buffer in 'meter'.

• For PointWithInPolygon points param is a FeatureCollection/Geojson Object thats contains multiple Point Feature.

Point_GeoJson = {
            type: "FeatureCollection",
            features: [
                {"type":"Feature","geometry":{"type":"Point","coordinates":[76.95513342,28.46301607]}},
                {"type":"Feature","geometry":{"type":"Point","coordinates":[76.58813342,28.64701607]}},
                {"type":"Feature","geometry":{"type":"Point","coordinates":[76.12413342,28.98601607]}},
            ]
        }

• For AliasLinestring line param is a FeatureCollection/Geojson Object thats contains Single LineString Feature with two position coordinates only ie. a straight line. distance param is the distance in 'meter' by which every line will be seprated. number param is number of linestring you want in parallel to line.

line_GeoJson = {
            "type": "FeatureCollection",
            "features":[
                {
                    "type": "Feature",
                    "geometry":{
                        "type":"LineString",
                        "coordinates": [[88.3639,22.5726],[88.4143,22.5797]]
                    }
                }
                ]
        }