Generate Graph (in JSON)

get_station.js is a helper script that will help in generating a graph.json which will be used as the input for juliuste/transit-map.

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The input graph.json must be in the JSON Graph Format. It will look something like -

{
    "nodes": [ // list of all nodes
        {
            "id": "DR", // required
            "label": "Dadar", // optional
            "metadata": {
                "x": 0.702342, // x-coordinate in mercator, required
                "y": 0.444534 // y-coordinate in mercator, required
            }
        }
    ],
    "edges": [ // list of all edges
        {
            "source": "DR", // required
            "target": "PR", // required
            "metadata": {
                "line": "Central" // optional
            }
        }
    ],
    "lines": [ // list of all lines, optional
        {
            "id": "Central",
            "color": "#ABDA1E",
            "group": "Central"
        }
    ]
}

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Requirements

• node.js 8.0+
• gurobi_cl 7.5+ (Free academic license)
• juliuste/projections in parent working directory

Usage

This script has a CLI which will generate a graph.json as shown above by taking inputs from the user as documented below -

USAGE: get_station.js [-n][-e][-l][-m][-c]

Option	Description
-n	Add station nodes
-e	Add station edges
-l	Add a new line
-m	Generate the input file
-c	Set new working city

• -n : adding new station nodes will take the required parameters: (id, label, latitude, longitude)
• -e : adding new station edges will take the required parameters: (source, target, line)
• -l : adding new line will take the required parameters: (id, color, group)
• -m : generating a $city.input.json file needs $city_nodes.json, $city_edges.json and $city_lines.json files present in the working/$city directory
• -c : will set a new working city by modifying config.json file.

Contributing

If you have a question, found a bug, or want to propose a feature, feel free to open a new issue.