{
let container = html`<div style='height:1200px;' />`;
let map;
// Give the container dimensions.
yield container;
let restaurant_locations = filtered.map(
(restaurant) => restaurant.location
);
let restaurant_coords = filtered.map(
(restaurant) => restaurant.cords
);
map = new mapboxgl.Map({
container,
center: [-122.159846, 37.601883],
zoom: 9.95,
style: "mapbox://styles/mapbox/streets-v9"
});
function project(d) {
return map.project(new mapboxgl.LngLat(d[0], d[1]));
}
var svg = d3
.select(container)
.append("svg")
.attr("width", "100%")
.attr("height", "1200")
.style("position", "absolute")
.style("z-index", 2);
var dots = svg
.append("g")
.selectAll("circle")
.data(restaurant_locations)
.enter()
.append("circle")
.attr("r", 1.4)
.style("opacity", 0.85)
.style("fill", "grey");
var circleA = svg
.append("g")
.selectAll("circle")
.data([circleStartPt[0]])
.join("circle")
.attr("id", "circA")
.attr("r", radA)
.attr("cx", (d) => project(d).x)
.attr("cy", (d) => project(d).y)
.attr("fill", "white")
.attr("stroke", "black")
.attr("opacity", 0.6)
.call(drag);
var circleB = svg
.append("g")
.selectAll("circle")
.data([circleStartPt[1]])
.join("circle")
.attr("id", "circB")
.attr("r", radB)
.attr("cx", (d) => project(d).x)
.attr("cy", (d) => project(d).y)
.attr("fill", "red")
.attr("stroke", "black")
.attr("opacity", 0.35)
.call(drag);
function inCircle(a, b, x, y, r) {
var dist_points = (a - x) * (a - x) + (b - y) * (b - y);
r *= r;
if (dist_points < r) {
return true;
}
return false;
}
function inBothCircles(d) {
var dx = project(d).x;
var dy = project(d).y;
var c1x = circleA.attr("cx");
var c1y = circleA.attr("cy");
var c2x = circleB.attr("cx");
var c2y = circleB.attr("cy");
return inCircle(dx, dy, c1x, c1y, radA) && inCircle(dx, dy, c2x, c2y, radB);
}
function setCoords() {
for (let i = 0; i < restaurant_data.length; i++) {
var coords = map.project(new mapboxgl.LngLat(restaurant_data[i].location[0], restaurant_data[i].location[1]));
restaurant_data[i].cords = [coords.x, coords.y];
}
}
function getName(d) {
var dx = project(d).x;
var dy = project(d).y;
var index = restaurant_coords.findIndex(element => element[0] === dx && element[1] === dy);
return filtered[index].name;
}
function getRating(d) {
var dx = project(d).x;
var dy = project(d).y;
var index = restaurant_coords.findIndex(element => element[0] === dx && element[1] === dy);
return filtered[index].rating;
}
function render() {
dots
.attr("cx", function (z) {
return project(z).x;
})
.attr("cy", function (z) {
return project(z).y;
})
.style("fill", function (z) {
return inBothCircles(z) ? "#fa1090" : "grey";
})
.on("mouseover", function (event, z) {
var rest_name = getName(z);
var rest_rat = getRating(z);
const tooltipText = `Name-${rest_name}; Rating-${rest_rat}`;
d3.select("#tooltip")
.transition()
.duration(200)
.style("opacity", 1)
.text(tooltipText);
})
.on("mouseout", function () {
d3.select("#tooltip").style("opacity", 0);
})
.on("mousemove", function (event, z) {
d3.select("#tooltip")
.style("top", event.pageY + 30 + "px")
.style("left", event.pageX - 30 + "px");
})
.style("opacity", 1)
.raise();
}
// Call render method; modified to render every .1s
setCoords();
render();
setInterval(render, 100);
invalidation.then(() => map.remove());
}
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