balance-d3/stream.js at main · alee-x/balance-d3 · GitHub

1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
const MARGINTOP    = 30;
const MARGINRIGHT  = 15;
const MARGINBOTTOM = 30;
const MARGINLEFT   = 30;

var data = [{
    colour : '#FF0000',
    values : [],
    range : {
        min : -90,
        max : 90,
        current : 0
    }
}
];


document.addEventListener('DOMContentLoaded', function(){
    generateFirstData();
    initialiseGraph();
    setInterval(function(){ updateGraph() }, 5000);
}, false);


function updateGraph(){
    addData();

    var vis = d3.select("#streaming-chart-svg");

    var xRange = getXRange();
    var yRange = getYRange();

    data.forEach(function(d,index){
        vis.select(".circl"+index)
            .transition()
            .duration(500)
            .attr("cx", xRange(d.values[0].x))
            .attr("cy", yRange(d.values[0].y));
    });
}

function getYRange(){
    var allValues = [];
    data.forEach(function(v,i){
        allValues = allValues.concat(v.values);
    });
    var containerHeight = $("#streaming-chart-svg").parent().height();
    return d3.scaleLinear()
        .range([containerHeight - MARGINBOTTOM, MARGINTOP])
        .domain([-90,90]);
}

function getXRange(){
    var containerWidth = $("#streaming-chart-svg").parent().width();
    return d3.scaleLinear()
        .range([MARGINLEFT, containerWidth - MARGINRIGHT])
        .domain([-90,90]);
}

function initialiseGraph(){

    var vis = d3.select("#streaming-chart-svg");
    var containerHeight = $("#streaming-chart-svg").parent().height();
    var containerWidth = $("#streaming-chart-svg").parent().width();

    var xRange = getXRange();
    var yRange = getYRange();

    var xAxis = d3.axisBottom()
        .scale(xRange)
        .tickSize(5);

    var yAxis = d3.axisLeft()
        .scale(yRange)
        .tickSize(5);

    vis.append("svg:g")
        .attr("class", "x axis")
        .attr("transform", "translate(0," + (containerHeight - MARGINBOTTOM) + ")")
        .call(xAxis);

    vis.append("svg:g")
        .attr("class", "y axis")
        .attr("transform", "translate(" + (MARGINLEFT) + ",0)")
        .call(yAxis);

    data.forEach(function(d,index){
        var svgLine = vis.append('circle')
            .attr("class", "circle")
            .attr("cx", xRange(d.values[0].x))
            .attr("cy", yRange(d.values[0].y))
            .attr("r", 20)
            .attr("fill", "red")
            .attr('class', 'circl'+index);
    });
}

//========================================
//========== DATA GENERATION =============
//========================================
function generateFirstData(){
    data.forEach(function(v,i){
        let runnerData = [];
        runnerData.push({x:0,y:0});
        v.values = runnerData;
    });
}

function addData(){
    // pick some random fuckin coordinates
    let rand_x = getRandomIntInclusive(-90, 90),
        rand_y = getRandomIntInclusive(-90, 90)
    data.forEach(function(v,i){
        let runnerData = [];
        runnerData.push({x:rand_x,y:rand_y});
        v.values = runnerData;
    });
}

function getRandomIntInclusive(min, max) {
    min = Math.ceil(min);
    max = Math.floor(max);
    return Math.floor(Math.random() * (max - min + 1) + min); //The maximum is inclusive and the minimum is inclusive
}

function adjustData(data){
    var rnd = Math.random()*100
    if(rnd < 90){

    } else if(rnd < 93){
        data.range.current = data.range.current + 0.1;
        if(data.range.current > data.range.max){
            data.range.current = data.range.max;
        }
    } else if(rnd < 96){
        data.range.current = data.range.current - 0.1;
        if(data.range.current < data.range.min){
            data.range.current = data.range.min;
        }
    }
}
//========================================