cssAudio - Activefile-genericCSS - ActiveGeneric - ActiveHTML - ActiveImage - ActiveJS - ActiveSVG - ActiveText - Activefile-genericVideo - ActiveLovehtmlicon-new-collectionicon-personicon-teamlog-outoctocatpop-outspinnerstartv

Pen Settings

CSS Base

Vendor Prefixing

Add External CSS

These stylesheets will be added in this order and before the code you write in the CSS editor. You can also add another Pen here, and it will pull the CSS from it. Try typing "font" or "ribbon" below.

Quick-add: + add another resource

Add External JavaScript

These scripts will run in this order and before the code in the JavaScript editor. You can also link to another Pen here, and it will run the JavaScript from it. Also try typing the name of any popular library.

Quick-add: + add another resource

Code Indentation

     

Save Automatically?

If active, Pens will autosave every 30 seconds after being saved once.

Auto-Updating Preview

If enabled, the preview panel updates automatically as you code. If disabled, use the "Run" button to update.

            
              <!-- HTML START -->
	<div class="container">
		<div class="jumbotron">
			<div class="container">
				<h2>SVG manipulate paths</h2>
				<p>I wanted to exercise in manipulating <code>SVG</code> using Javascript. Also I went for a comfortable UI, so I ended up with adding a snap sound which I found on <a href="http://www.freesound.org/people/Snapper4298/sounds/177496/">freesound.org</a>, following the guide I made before: <a href="https://codepen.io/netsi1964/pen/IHwco">Snapshoot sound - snapshoot()</a>
				</p>
			</div>
		</div>
		<div class="row">
			<div class="col-md-6">

				<svg width="500" height="1400">
					<defs>
						<g id="cross">
							<rect x="-5" y="-5" width="10" height="10" fill="none" stroke="#aaa" stroke-width="1px" />
						</g>
						<g id="crossFilled">
							<rect x="-5" y="-5" width="10" height="10" fill="orange" stroke="#aaa" stroke-width="1px" />
						</g>
					</defs>
					<g id="grid"></g>
					<g id="curve"></g>

				</svg>
			</div>
			<div class="col-md-6">
				<h2>Path</h2>
				<pre class="log"></pre>
				<h3>Data</h3>
				<pre class="data"></pre>
			</div>
		</div>
	</div>
	<!-- HTML END  -->
            
          
!
            
              path {
			stroke: orange;
			stroke-width: 3px;
			fill: none;
		}
		
		svg {
			box-shadow: 0 0 2px black;
		}
		
		.gridPath {
			stroke: rgba(0, 0, 200, .4);
			stroke-width: 1px;
			stroke-dasharray: 2, 1;
		}
            
          
!
            
              /*********** Sound START  ***********/
// http://stackoverflow.com/questions/1933969/sound-effects-in-javascript-html5
var camera = new Audio().canPlayType("audio/ogg; codecs=vorbis") === ""
	? "https://s3-us-west-2.amazonaws.com/s.cdpn.io/9729/snap.wav"
	: "https://s3-us-west-2.amazonaws.com/s.cdpn.io/9729/snap.ogg";
var snd = new Audio(camera); // buffers automatically when created
function snap() {
	snd.play();
}
/*********** Sound END  ***********/

var iPosition = 0;

function points(iCount, current) {
	if (iCount <= 0) {
		iPosition += 1;
		return current;
	}
	if (typeof current !== "undefined") {
		iPosition += 1;
	} else {
		current = "";
	}
	return points(
		--iCount,
		current + "%" + iPosition + "% %" + ++iPosition + "% "
	);
}

function addCommand(sType) {
	var ucCommand = sType.toUpperCase();
	if ("ML".indexOf(ucCommand) > -1) {
		return sType + " " + points(1);
	} else {
		if ("C".indexOf(ucCommand) > -1) {
			return sType + " " + points(3);
		} else {
			if ("Q".indexOf(ucCommand) > -1) {
				return sType + " " + points(2);
			}
		}
	}
}

function addCommands(sCommands, data) {
	var d = "";
	for (var i = 0; i < sCommands.length; i++) {
		d += addCommand(sCommands.substr(i, 1));
	}
	var result = {
		d: d,
		data: []
	};
	for (var i = 0; i < iPosition; i++) {
		result.data.push(typeof data[i] !== "undefined" ? data[i] : 0);
	}

	return result;
}

var cx = 100,
	cy = 250,
	draw = addCommands("MCMCMLQMQL", [
		185.5,
		439,
		14.5,
		342,
		78.5,
		139,
		178.5,
		192,
		189.5,
		440,
		342.5,
		435,
		292.5,
		149,
		181.5,
		192,
		176.5,
		165,
		135.5,
		110,
		120.5,
		60,
		45.5,
		73,
		383.5,
		131,
		219.5,
		19,
		209.5,
		65,
		186.5,
		153
	]),
	curves = [
		{
			d: draw.d,
			init: draw.data
		}
	],
	curve = "",
	currentCurve = 0,
	$curve = $("#curve"),
	$data = $(".data"),
	$log = $(".log"),
	$grid = $("#grid"),
	active = -1;

function setActive(a) {
	if (a !== active) {
		snap();
	}
	active = a;
}

// Find your root SVG element
var svg = document.querySelector("svg");

// Create an SVGPoint for future math
var pt = svg.createSVGPoint();

// Get point in global SVG space
function cursorPoint(evt) {
	return getXY(evt.clientX, evt.clientY, true);
}

function getXY(x, y, inverse) {
	pt.x = x;
	pt.y = y;
	return !!inverse ? pt.matrixTransform(svg.getScreenCTM().inverse()) : pt;
}

function generateCurveData(x, y, activePoint) {
	var curveToDraw = curves[currentCurve];
	var d = curveToDraw.d;
	var sHTML = curveToDraw.d;
	var points = curveToDraw.init;
	var ptno = 0;
	for (var point = 0; point < points.length; point += 2) {
		var px = ptno === activePoint
			? x
			: typeof points[point] === "undefined" ? 0 : points[point];
		var py = ptno === activePoint
			? y
			: typeof points[point + 1] === "undefined" ? 0 : points[point + 1];
		curveToDraw.init[point] = px;
		curveToDraw.init[point + 1] = py;
		d = d.replace("%" + point + "%", px).replace("%" + (point + 1) + "%", py);
		sHTML = sHTML
			.replace("%" + point + "%", (ptno === activePoint ? "<mark>" : "") + px)
			.replace(
				"%" + (point + 1) + "%",
				py + (ptno === activePoint ? "</mark>" : "")
			);
		ptno++;
	}
	var curveData = {
		d: d,
		html: sHTML
	};
	return curveData;
}

function handleMouseMove(evt) {
	var loc = cursorPoint(evt);
	var x = loc.x;
	var y = loc.y;

	if (evt.buttons !== 0 || curve == "") {
		curve = generateCurveData(x, y, active);
	}

	var grid = curve.d.replace(/[^0-9.]/g, " ").split(" ").filter(function(ele) {
		return ele != "";
	});
	var sGrid = "";
	var ptno = 0;
	var path = "";
	var gridPath = '<path class="gridPath" d="M %path%" />';
	for (var point = 0; point < grid.length; point += 2) {
		var pt = getXY(grid[point], grid[point + 1]);
		sGrid +=
			'<use onmousemove="setActive(' +
			ptno +
			')" xlink:href="#' +
			(ptno == active ? "crossFilled" : "cross") +
			'" x="' +
			pt.x +
			'" y="' +
			pt.y +
			'"  />\n';
		path += (ptno === 1 ? "L " : "") + grid[point] + " " + grid[point + 1] + " ";
		ptno++;
	}
	sGrid += gridPath.replace("%path%", path);
	$log.html('&lt;path d="' + curve.html + '" &gt;');
	$grid.html(sGrid);
	$data.text(curves[currentCurve].init);
	$curve.html('<path d="' + curve.d + '" >');
}

svg.addEventListener("mousemove", handleMouseMove, false);

document.addEventListener("keyup", function(evt) {
	switch (evt.keyCode) {
		case 37: // LEFT
			active--;
			break;
		case 39: // RIGHT
			active++;
			break;
	}
	
});


// 3. aug. 2017 Added init draw
let pseudoEvt = {
  clientX: 0,
  clientY: 0,
  buttons: 0
}
handleMouseMove(pseudoEvt)
            
          
!
999px
Close

Asset uploading is a PRO feature.

As a PRO member, you can drag-and-drop upload files here to use as resources. Images, Libraries, JSON data... anything you want. You can even edit them anytime, like any other code on CodePen.

Go PRO

Loading ..................

Console