Angular2 and Gantt Chart D3.js

Question

I have an angular2 application that I am trying to implement a Gantt chart from d3.js in. I am trying to use the following example http://bl.ocks.org/dk8996/5538271 . obviously this uses javascript, not typescript. However, I have most of this seems to be fine, but I get one problem.

Here is my method:

createSchedule() {
    var tasks = [{"startDate":new Date("Sun Dec 09 01:36:45 EST 2012"),"endDate":new Date("Sun Dec 09 02:36:45 EST 2012"),"taskName":"E Job","status":"RUNNING"}];
    var taskStatus = {
        "SUCCEEDED" : "bar",
        "FAILED" : "bar-failed",
        "RUNNING" : "bar-running",
        "KILLED" : "bar-killed"
    };

    var taskNames = [ "D Job", "P Job", "E Job", "A Job", "N Job" ];

    tasks.sort(function(a,b) {
        return a.endDate.getTime() - b.endDate.getTime();
    });

    var maxDate = tasks[tasks.length -1].endDate;
    tasks.sort(function(a,b) {
        return a.startDate.getTime() - b.startDate.getTime();
    });
    var minDate = tasks[0].startDate;

    var format = "%H:%M";
    var timeDomainString = "1day";

    var gantt = d3.gantt().taskTypes(taskNames).taskStatus(taskStatus).tickFormat(format).height(450).width(800);
    gantt.timeDomainMode("fixed");
    changeTimeDomain(timeDomainString);

    gantt(tasks);

    function changeTimeDomain(timeDomainString) {
        this.timeDomainString = timeDomainString;
        switch (timeDomainString) {
        case "1hr":
        format = "%H:%M:%S";
        gantt.timeDomain([ d3.time.hour.offset(new Date(getEndDate()), -1), getEndDate() ]);
        break;
        case "3hr":
        format = "%H:%M";
        gantt.timeDomain([ d3.time.hour.offset(new Date(getEndDate()), -3), getEndDate() ]);
        break;

        case "6hr":
        format = "%H:%M";
        gantt.timeDomain([ d3.time.hour.offset(new Date(getEndDate()), -6), getEndDate() ]);
        break;

        case "1day":
        format = "%H:%M";
        gantt.timeDomain([ d3.time.day.offset(new Date(getEndDate()), -1), getEndDate() ]);
        break;

        case "1week":
        format = "%a %H:%M";
        gantt.timeDomain([ d3.time.day.offset(new Date(getEndDate()), -7), getEndDate() ]);
        break;
        default:
        format = "%H:%M"

        }
        gantt.tickFormat(format);
        gantt.redraw(tasks);
    }

    function getEndDate() {
        var lastEndDate = Date.now();
        if (tasks.length > 0) {
            lastEndDate = tasks[tasks.length - 1].endDate.getTime();
        }
        return lastEndDate;
    }

}

Bit where I get the error:

var gantt = d3.gantt().taskTypes(taskNames).taskStatus(taskStatus).tickFormat(format).height(450).width(800);

It says Property 'gantt' does not exist on type 'typeof d3'

I import my d3 as follows

import * as d3 from 'd3';

I have no errors elsewhere and am struggling to identify the problem.

Any ideas?

EDIT

Just like a test, to make sure d3 works, I implement a simple circle as follows:

d3.select("#scheduleDiv").append("svg").attr("width",50).attr("height", 50).append("circle").attr("cx", 25).attr("cy", 25).attr("r", 25).style("fill", "purple");

This works fine, but .gantt () is not

Answer 1

, gantt() d3. <script type="text/javascript" src="http://static.mentful.com/gantt-chart-d3v2.js"> </script‌​> .

gantt, . , , :

declare module d3 {
    export function gantt(input:any, input2:any): any;

}