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d3 drag reset with multiple groups
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| license: mit |
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| <!DOCTYPE html> | |
| <head> | |
| <meta charset="utf-8"> | |
| <script src="https://d3js.org/d3.v5.min.js"></script> | |
| <style> | |
| body { margin:0;position:fixed;top:0;right:0;bottom:0;left:0; } | |
| </style> | |
| </head> | |
| <body> | |
| <script> | |
| const circleRadius = 40; | |
| const variables = ['one', 'two', 'three', 'four']; | |
| const inZone = []; | |
| // DOM elements | |
| const svg = d3.select("body").append("svg") | |
| .attr("width", 960) | |
| .attr("height", 500) | |
| const dragDockGroup = svg.append('g') | |
| .attr('id', 'draggables-dock'); | |
| const dock = dragDockGroup.selectAll('g') | |
| .data(variables) | |
| .enter().append("g") | |
| .attr("id", (d, i) => `dock-${variables[i]}`); | |
| dock.append("circle") | |
| .attr("cx", (d, i) => circleRadius * (2 * i + 1)) | |
| .attr("cy", circleRadius) | |
| .attr("r", circleRadius) | |
| .style("stroke", "none") | |
| .style("fill", "palegoldenrod"); | |
| dock.append("text") | |
| .attr("x", (d, i) => circleRadius * (2 * i + 1)) | |
| .attr("y", circleRadius) | |
| .attr("text-anchor", "middle") | |
| .style("fill", "white") | |
| .text((d, i) => variables[i]); | |
| const draggablesGroup = svg.append('g') | |
| .attr('id', 'draggables'); | |
| const draggables = draggablesGroup.selectAll('g') | |
| .data(variables) | |
| .enter().append("g") | |
| .datum(function(d,i) { | |
| return "translate("+[circleRadius * (2 * i + 1),circleRadius]+")"; | |
| }) | |
| .attr("transform", (d,i) => d) | |
| .attr("id", (d, i) => variables[i]) | |
| .call(d3.drag() | |
| .on("start", dragStarted) | |
| .on("drag", dragged) | |
| .on("end", dragEnded)); | |
| draggables.append('circle') | |
| .attr("r", circleRadius) | |
| .style("stroke", "orange") | |
| .style("fill", "yellowgreen"); | |
| draggables.append("text") | |
| .attr("text-anchor", "middle") | |
| .style("fill", "white") | |
| .text((d, i) => variables[i]); | |
| svg.append('rect') | |
| .attr("x", 960/2) | |
| .attr("y", 0) | |
| .attr("width", 100) | |
| .attr("height", 500/2) | |
| .attr("fill-opacity", 0) | |
| .style("stroke", "#848276") | |
| .attr("id", "hitZone"); | |
| // functions | |
| function dragStarted() { | |
| d3.select(this).raise(); | |
| } | |
| function dragged() { | |
| d3.select(this).attr("transform","translate("+[d3.event.x,d3.event.y]+")") | |
| } | |
| function dragEnded() { | |
| d3.select(this).lower(); | |
| let hit = d3.select(document.elementFromPoint(d3.event.sourceEvent.clientX, d3.event.sourceEvent.clientY)).attr("id"); | |
| if (hit == "hitZone") { | |
| inZone.push(this.id); | |
| if (inZone.length > 1) { | |
| let resetVar = inZone.shift(); | |
| resetCircle(resetVar); | |
| } | |
| } | |
| d3.select(this).raise(); | |
| } | |
| function resetCircle(resetVar) { | |
| d3.select(`#${resetVar}`) | |
| .transition() | |
| .duration(1000) | |
| .style('opacity', 0) | |
| .transition() | |
| .duration(500) | |
| .attr("transform", (d,i) => d) | |
| .transition() | |
| .duration(1000) | |
| .style('opacity', 1); | |
| } | |
| </script> | |
| </body> |
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