Built with blockbuilder.org
Last active
March 8, 2019 16:40
-
-
Save headwinds/629136197b84cd4fed6a92b865e50386 to your computer and use it in GitHub Desktop.
enter exit merge
This file contains hidden or bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
| license: mit |
This file contains hidden or bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
| <!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> | |
| // Feel free to change or delete any of the code you see in this editor! | |
| var svg = d3.select("body").append("svg") | |
| .attr("width", 960) | |
| .attr("height", 500) | |
| const radius = 100; | |
| var sheepData = [ | |
| {color: "purple", radius, x: 10, y: radius, name: "purple"}, | |
| {color: "red", radius, x: 10, y: radius * 2, name: "red"}, | |
| {color: "pink", radius, x: 10, y: radius * 3, name: "pinkie"}, | |
| ] | |
| const blackSheep = {color: "black", radius: 10, x: 10, y: 100, name: "blacksheep"}; | |
| function update(data) { | |
| // DATA JOIN | |
| // Join new data with old elements, if any. | |
| var sheep = svg.selectAll("g") | |
| .data(data); | |
| // UPDATE | |
| // Update old elements as needed. | |
| const getColor = d => { | |
| //console.log("color: ",d) | |
| return d.color; | |
| } | |
| const getTranslate = d => { | |
| console.log("trans : ",d) | |
| return "translate (" + d.x + "," + d.y + ")"; | |
| } | |
| const getClass = d => { | |
| return d.name; | |
| } | |
| // sheep.attr("transform", getTranslate); | |
| // ENTER | |
| // Create new elements as needed. | |
| // | |
| // ENTER + UPDATE | |
| // After merging the entered elements with the update selection, | |
| // apply operations to both. | |
| let sheepG = sheep.enter().append("g") | |
| .attr("transform", getTranslate) | |
| .attr("class", getClass); | |
| sheepG | |
| .append("circle") // ENTER | |
| .attr("r", d => d.radius) | |
| .style("fill", getColor); | |
| const getEase = () => { | |
| const coinFlip = Math.random() * 100; | |
| return (coinFlip > 50) ? d3.easeSin : d3.easeBack; | |
| } | |
| sheep | |
| .merge(sheep) | |
| .transition() | |
| .ease(getEase()) | |
| .delay(500) | |
| .duration(2000) | |
| .attr("transform", getTranslate); | |
| // EXIT | |
| // Remove old elements as needed. | |
| sheep.exit().remove(); | |
| } | |
| update(sheepData); | |
| let count = 0; | |
| let int = setInterval( () => { | |
| //sheepData.push(blackSheep); | |
| function createNewSheep(sheep){ | |
| if (sheep.name === 'pinkie') return sheep; | |
| const newX = sheep.x + ( radius * count); | |
| //console.log("newX: ", newX); | |
| return {...sheep, x: newX}; | |
| } | |
| const newSheepData = sheepData.map(createNewSheep); | |
| update(newSheepData); | |
| if (count > 10) { | |
| clearInterval(int); | |
| } | |
| count++; | |
| }, 1000) | |
| </script> | |
| </body> |
Sign up for free
to join this conversation on GitHub.
Already have an account?
Sign in to comment