goals = {
// this some placeholder text you can replace with real data
const csv_text =
`date,quadrant
1/20/2021,1
2/21/2021,2
3/22/2021,3
1/23/2021,4
1/24/2021,5
1/25/2021,6
1/26/2022,1
1/26/2022,6
1/27/2022,1
1/27/2022,1
`
return d3.csvParse(csv_text).map(d => ({...d, date:new Date(d.date)})); // parse out the dates
}
viewof filteredGoals = rangeSlider(goals, d=>d.date, value=>d3.sum(value.values.map(d=>1)));
chart = {
const svg = d3.create("svg")
.attr("width", width)
.attr("height", config.height);
// draw a background hockey rink shape
const rinkRectTop = (config.width-config.rinkWidth)/2;
const rinkRectLeft = (config.height-config.rinkHeight)/2;
const rinkWrapper = svg.append('svg')
.attr('x', rinkRectTop)
.attr('y', rinkRectLeft)
.attr('width', config.rinkWidth)
.attr('height', config.rinkHeight);
rinkWrapper.append('svg:image')
.attr('x', 0)
.attr('y', 0)
.attr('opacity', 0.4)
.attr('width', config.rinkWidth)
.attr('height', config.rinkHeight)
.attr('xlink:href', 'https://media.istockphoto.com/id/459298881/vector/vector-ice-hockey-rink-with-skate-marks.jpg?s=1024x1024&w=is&k=20&c=LqPeqxljyf0MyP9kPRV7IscPTSsrVZI1RN6S2Fjotjg=');
rinkWrapper
.selectAll("svg")
.data(filteredGoalsByQuadrant.keys())
.join("svg") // each quadrant gets its own box to draw pucks in - one for each goal scored from that quadrant
// this resets the 0,0 point to the be top-left of the rink, not teh large `svg` defined previously
.attr('x', d => quandrantToXY(d)[0])
// have to offset the y so that the stack of pucks goes up, not down from base position
.attr('y', d => quandrantToXY(d)[1] - (5+config.iconRadius+filteredGoalsByQuadrant.get(d).length*config.iconRadius))
.attr('width', 5+config.iconRadius*2) // one puck wide
.attr('height', d => 5+config.iconRadius+filteredGoalsByQuadrant.get(d).length*config.iconRadius) // taller if more goals
// now inside the quadrant's box draw one puck per goal
.selectAll("circle")
.data(d => filteredGoalsByQuadrant.get(d))
.join("circle")
.attr("cx", 2+config.iconRadius)
.attr("cy", (d, idx) => 2+(config.iconRadius)+(idx*config.iconRadius))
.attr("r", config.iconRadius)
.attr("stroke", "#333")
.attr("fill", "#af0");
return svg.node();
}
filteredGoalsByQuadrant = d3.group(filteredGoals.data, d => d.quadrant);
quandrantToXY = function(quandrant) {
// for each quadrant this needs to return an [x-coordinate, y-coordinate] array
if (quandrant == 1) return [(config.rinkWidth / 6), ( config.rinkHeight/ 4)*1];
if (quandrant == 2) return [(config.rinkWidth / 6), (config.rinkHeight / 4)*2];
if (quandrant == 3) return [(config.rinkWidth / 6), (config.rinkHeight / 4)*3];
if (quandrant == 4) return [(config.rinkWidth / 6)*2, (config.rinkHeight / 4)*1];
if (quandrant == 5) return [(config.rinkWidth / 6)*2, (config.rinkHeight / 4)*2];
if (quandrant == 6) return [(config.rinkWidth / 6)*2, (config.rinkHeight / 4)*3];
return [0,0]; // just here as a failsafe
}
import {rangeSlider} from "@bumbeishvili/utils"
config = ({
rinkWidth: 200*4, // the internet said hockey rinks are 200x85
rinkHeight: 85*4,
height: 400,
width: width, // this uses the Observable magic `width` variable - would need to be replaced with a number
iconRadius: 10
});
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