headwinds/.block

## .block
license: mit

## README.md

      
    Raw
  

              README.md
            
          
    Learning about more about Big O notation today and came across this post by ParanoidAgnostic and wanted to attempt to port the Java to Javascript & D3.
credit to this block for the color approach.
Built with blockbuilder.org

  
## index.html
<!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 width = window.innerWidth;
    const height = window.innerHeight;

    const tileX = 10; // total per row
    const tileY = 10; // total per column
    const tileSize = 50;

    const circleArray = [];

    const greens = d3.scaleOrdinal(d3.schemeGreens[3]);
    // const colorArray = [d3.schemeCategory10, d3.schemeAccent];

    const colorScheme = greens; // multi colour is colorArray

   const getRandFill = () => {
     const ranIndex = Math.floor(Math.random() * 10);
     return colorScheme(ranIndex);
   }


    const svg = d3.select("body").append("svg")
      .attr("width", width)
      .attr("height", height)

    const drawTile = (x,y,z) => {

    	  svg.append("g")
        		.attr("transform", "translate (" + x + "," + y + ")")
        		.append("rect")
        		.attr("fill", getRandFill())
        		.attr("stroke", "#DDD")
        		.attr("stroke-width", 1)
        		.attr("width", z)
        		.attr("height", z)
    }

    const processRow = (y, z) => {
    	for(x=0;x<tileX;x++) {
        const xPos = x * z;
        const yPos = y * z;
        drawTile(xPos,yPos,z);
    	}
		}

		const processLayer = (z) => {
    	for(y=0;y<tileY;y++) {
        processRow(y,z);
    	}
		}


		processLayer(tileSize)


  </script>
</body>
	<!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 width = window.innerWidth;
	const height = window.innerHeight;

	const tileX = 10; // total per row
	const tileY = 10; // total per column
	const tileSize = 50;

	const circleArray = [];

	const greens = d3.scaleOrdinal(d3.schemeGreens[3]);
	// const colorArray = [d3.schemeCategory10, d3.schemeAccent];

	const colorScheme = greens; // multi colour is colorArray

	const getRandFill = () => {
	const ranIndex = Math.floor(Math.random() * 10);
	return colorScheme(ranIndex);
	}


	const svg = d3.select("body").append("svg")
	.attr("width", width)
	.attr("height", height)

	const drawTile = (x,y,z) => {

	svg.append("g")
	.attr("transform", "translate (" + x + "," + y + ")")
	.append("rect")
	.attr("fill", getRandFill())
	.attr("stroke", "#DDD")
	.attr("stroke-width", 1)
	.attr("width", z)
	.attr("height", z)
	}

	const processRow = (y, z) => {
	for(x=0;x<tileX;x++) {
	const xPos = x * z;
	const yPos = y * z;
	drawTile(xPos,yPos,z);
	}
	}

	const processLayer = (z) => {
	for(y=0;y<tileY;y++) {
	processRow(y,z);
	}
	}


	processLayer(tileSize)


	</script>
	</body>