After successfully working with plain JavaScript to create an interactive D3.js map, I am now attempting to convert it into a Vue.js component. I have defined all functions as methods, but I am facing a challenge where none of the mouse events are being triggered. I have tried using both the D3.js approach (.on("click", this.clickBG)) and the Vue approach (.attr("v-on:click","clickBG")), but neither method seems to be working.
// Template: https://dev.to/ignoreintuition/binding-data-to-charts-using-vue-components-and-d3-4i27
import * as d3 from 'd3';
export default {
props: ['data','vegbed'],
data: function () {
return {
gardenbox: {}
}
},
computed: {
displaywidth: function() { return 600; },
displayheight: function() { return this.displaywidth*(this.vegbed.length/this.vegbed.width); },
margin: function() { return {top: 0, right: 0, bottom: 0, left: 0}; }
},
methods: {
initializeChart: function () {
this.drawGardenBox();
},
virtualDiameter: function (realDia) {
return (this.displaywidth/this.vegbed.width)*realDia;
},
clickPlant: function() {
d3.selectAll(".selected").raise().classed("selected",false);
d3.select(_this).selectAll(".plant").raise().classed("selected", true);
d3.selectAll("#"+this.id).classed("selected", true);
},
clickBackground: function() {
console.log("click");
d3.selectAll(".selected").raise().classed("selected",false);
},
draggedPlant: function(d) {
d3.select(this).attr("transform","translate("+(d.x = d3.event.x)+","+(d.y = d3.event.y)+")");
},
dragStartedPlant: function() {
d3.selectAll(".selected").raise().classed("selected",false);
d3.select(this).selectAll(".plant").raise().classed("selected", true);
d3.selectAll("#"+this.id).classed("selected", true);
//d3.event.sourceEvent.stopPropagation();
},
dragEndedPlant: function(d) {
},
refreshBed: function () {
let _this = this; // Workaround to call functions from inside callbacks
var gplant = this.gardenbox.selectAll("g")
.data(this.data).enter().append("g")
.attr("id", function(d){ return d.id; })
.attr("transform", function(d){ return "translate("+d.x+","+d.y+")"; })
.on("click", this.clickPlant)
//.attr("v-on:click","this.clickPlant")
.call(d3.drag()
.on("start", this.draggedPlant)
.on("drag", this.dragStartedPlant)
.on("end", this.dragEndedPlant));
gplant.append("circle") // Max size
.attr('class', 'plant')
.attr("cx", function(d) { return d.x; })
.attr("cy", function(d) { return d.y; })
.attr("r", function(d) { return _this.virtualDiameter(d.plant.adult_diameter); });
gplant.append("circle") // Min size
.attr('class', 'plant')
.attr("cx", function(d) { return d.x; })
.attr("cy", function(d) { return d.y; })
.attr("r", function(d) { return _this.virtualDiameter(d.plant.exposure_diameter); });
gplant.append("image")
.attr('class', 'plant')
.attr("xlink:href", function(d) { return d.picref; })
.attr("x", function(d) { return d.x-(d.picsize/2); })
.attr("y", function(d) { return d.y-(d.picsize/2); })
.attr("width", function(d) { return d.picsize; })
.attr("height", function(d) { return d.picsize; });
},
drawGardenBox: function () {
this.gardenbox = d3.select('#vegbedcontainer').append('svg')
.attr("width", this.displaywidth + this.margin.left + this.margin.right)
.attr("height", this.displayheight + this.margin.top + this.margin.bottom)
// Background for deselect action
var bg = this.gardenbox.append("g")
//.attr("v-on:click","clickBG");
.on("click", this.clickBackground); // Unselect on background click
bg.append("rect")
.attr('class', 'bg')
.attr("x", this.margin.left)
.attr("y", this.margin.top)
.attr("width", this.displaywidth + this.margin.left + this.margin.right)
.attr("height", this.displayheight + this.margin.top + this.margin.bottom)
}
},
// Lifecycle events
mounted: function () { // <-- Lifecycle events
console.log('VegBedEditor mounted.')
this.initializeChart();
this.refreshBed();
},
// Watch functions
watch: { // <-- Watch functions
'data': {
handler: function (val) {
this.refreshBed();
},
deep: true
}
},
template: `<div id="vegbedcontainer"><!-- SVG goes here --></div>`
}