wefra-odoo11/custom/scripts/d3js/chart/area_chart.js

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JavaScript
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2019-10-02 21:28:58 +00:00
var AreaChart = {
margin: {top: 20, right: 0, bottom: 40, left: 80},
init: function(svg, html_tag_attr, dataset, xTimeParse, xAxisFormat, yTicks){
this.html_tag_attr = html_tag_attr;
//var div = d3.select(this.html_tag_attr).append("div")
d3.select(this.html_tag_attr).append("div")
.attr("class", "tooltip")
.style("opacity", 0);
// set the dimensions and margins of the graph
var width = $(this.html_tag_attr).width() - this.margin.left - this.margin.right,
height = $(this.html_tag_attr).height() - this.margin.top - this.margin.bottom;
// parse the date / time
var parseTime = d3.timeParse(xTimeParse);
// set the ranges
var x = d3.scaleTime().range([0, width]);
var y = d3.scaleLinear().range([(height), this.margin.top]);
// define the area
var area = d3.area()
.x(function(d) { return x(d.x); })
.y0(height)
.y1(function(d) { return y(+d.y); });
// define the line
var valueline = d3.line()
.x(function(d) { return x(d.x); })
.y(function(d) { return y(+d.y); });
//.y(function(d) { return y(d.y); });
//var svg = this.svg(html_tag_attr, width, height, this.margin);
// format the dataset
dataset.forEach(function(d) {
d.x = parseTime(d.x);
d.y = +d.y;
});
// Scale the range of the dataset
x.domain(d3.extent(dataset, function(d) { return d.x; }));
y.domain([0, d3.max(dataset, function(d) { return +d.y + 10; })]).ticks(2);
// set the gradient
//svg.append("linearGradient") <== THIS ONE WORKS
// .attr("id", "area-gradient")
// .attr("gradientUnits", "userSpaceOnUse")
// .attr("x1", 0).attr("y1", y(0))
// .attr("x2", 0).attr("y2", y(20000))
// .selectAll("stop")
// .data([
// {offset: "40%", color: "#efffef"},
// {offset: "80%", color: "#efffef", opacity:0.8}
// ])
// .enter().append("stop")
// .attr("offset", function(d) { return d.offset; })
// .attr("stop-color", function(d) { return d.color; });
var max = d3.max(dataset, function(d) { return +d.y + 10; });
svg.append("linearGradient") //<== THIS ONE IS FOR TEST
.attr("id", "area-gradient")
.attr("gradientUnits", "userSpaceOnUse")
.attr("x1", 0).attr("y1", y(0))
.attr("x2", 0).attr("y2", y(max))
//.attr("x3", 0).attr("y3", y(17000))
//.attr("x4", 0).attr("y4", y(18000))
.selectAll("stop")
.data([
{offset: "20%", color: "red", opacity:0.5},
{offset: "40%", color: "orange", opacity:0.2},
{offset: "80%", color: "yellow", opacity:0.2},
{offset: "100%", color: "green", opacity:0.5}
])
.enter().append("stop")
.attr("offset", function(d) { return d.offset; })
.attr("stop-color", function(d) { return d.color; });
// add the area
svg.append("path")
.data([dataset])
.attr("class", "area")
.attr("d", area);
// Add the valueline path.
svg.append("path")
.data([dataset])
.attr("fill", "none")
.attr("class", "line")
//.attr("stroke", "green")
.attr("stroke-width", "1.5px")
.attr("d", valueline);
// Add the X Axis
svg.append("g")
.attr("class", "axis")
.attr("transform", "translate(0," + height + ")")
.call(d3.axisBottom(x)
.tickFormat(d3.timeFormat(xAxisFormat)))
.selectAll("text")
.attr("dx", "-.8em")
.attr("dy", ".95em");
// Add the Y Axis
svg.append("g")
.attr("class", "axis")
.call(d3.axisLeft(y).ticks(yTicks))
.selectAll("text")
.style("text-anchor", "end")
;
}, //ENDOF init: function()
addLine: function(svg, html_tag_attr, dataset, xTimeParse, color){
// set the dimensions and margins of the graph
var width = $(this.html_tag_attr).width() - this.margin.left - this.margin.right,
height = $(this.html_tag_attr).height() - this.margin.top - this.margin.bottom;
// parse the date / time
var parseTime = d3.timeParse(xTimeParse);
// set the ranges
var x = d3.scaleTime().range([0, width]);
var y = d3.scaleLinear().range([height, 0]);
// define the line
var valueline = d3.line()
.x(function(d) { return x(d.x); })
.y(function(d) { return y(+d.y); });
//.y(function(d) { return y(d.y); });
//var svg = this.svg(html_tag_attr, width, height, this.margin);
// format the dataset
dataset.forEach(function(d) {
d.x = parseTime(d.x);
d.y = +d.y;
});
// Scale the range of the dataset
x.domain(d3.extent(dataset, function(d) { return d.x; }));
y.domain([0, d3.max(dataset, function(d) { return +d.y + 10; })]).ticks(2);
// Add the valueline path.
svg.append("path")
.data([dataset])
.attr("fill", "none")
.attr("stroke", color)
.attr("stroke-width", "2px")
.attr("d", valueline)
;
}, //ENDOG addLine: function()
}; //ENDOF LineChart