1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
|
<!DOCTYPE html>
<html>
<head>
<title>calligram.me</title>
<style>
div {
width: 100%;
height: 100%;
overflow: visible;
display: block;
margin: auto;
position: absolute;
text-align: center;
}
svg {
width: 100%;
height: 90%;
overflow: visible;
display: flex;
justify-content: center;
align-self: stretch;
position: absolute;
}
svg path {
fill:transparent;
stroke:black;
stroke-width:.02em;
}
svg text {
font-size:30px;
fill: brown;
}
</style>
</head>
<body>
<input id="the_text" type="text" value="" placeholder="Place text here...">
<input id="the_svg" type="text" value="" placeholder="Paste SVG path 'd' field here...">
<div id="svg-target"></div>
<script>
const targetDiv = document.getElementById('svg-target');
const svgNode = document.createElementNS('http://www.w3.org/2000/svg', 'svg');
svgNode.setAttributeNS(null, 'viewBox', '0 0 1500 1000');
svgNode.setAttributeNS(null, 'width', '100%');
svgNode.setAttributeNS(null, 'preserveAspectRatio', 'xMidyMid meet');
targetDiv.appendChild(svgNode);
const svgPath = document.createElementNS('http://www.w3.org/2000/svg', 'path');
svgPath.setAttributeNS(null, 'id', 'svgpath');
svgNode.appendChild(svgPath);
const textNode = document.createElementNS('http://www.w3.org/2000/svg', 'text');
textNode.setAttributeNS(null, 'text-anchor', 'middle');
textNode.setAttributeNS(null, 'id', 'moving_text');
svgNode.appendChild(textNode);
const textPath = document.createElementNS('http://www.w3.org/2000/svg', 'textPath');
textPath.setAttributeNS(null, 'startOffset', '0%');
textPath.setAttributeNS(null, 'href', '#svgpath');
textPath.textContent = "envelope envelope envelope envelope envelope envelope envelope envelope envelope envelope envelope envelope envelope envelope envelope envelope envelope envelope envelope envelope envelope envelope envelope envelope envelope envelope envelope envelope envelope envelope!";
textNode.appendChild(textPath);
const animate = document.createElementNS('http://www.w3.org/2000/svg', 'animate');
animate.setAttributeNS(null, 'attributeName', 'startOffset');
animate.setAttributeNS(null, 'from', '-50%');
animate.setAttributeNS(null, 'to', '150%');
animate.setAttributeNS(null, 'begin', '0s');
animate.setAttributeNS(null, 'repeatCount', 'indefinite');
updateSVG("M64 112c-8.8 0-16 7.2-16 16v22.1L220.5 291.7c20.7 17 50.4 17 71.1 0L464 150.1V128c0-8.8-7.2-16-16-16H64zM48 212.2V384c0 8.8 7.2 16 16 16H448c8.8 0 16-7.2 16-16V212.2L322 328.8c-38.4 31.5-93.7 31.5-132 0L48 212.2zM0 128C0 92.7 28.7 64 64 64H448c35.3 0 64 28.7 64 64V384c0 35.3-28.7 64-64 64H64c-35.3 0-64-28.7-64-64V128z");
textPath.appendChild(animate);
console.log(Object.entries(svgNode));
var input = document.getElementById('the_text');
input.addEventListener("input", updateValue);
function updateValue(e) {
textPath.textContent = (e.target.value);
textPath.appendChild(animate);
};
var svg_input = document.getElementById('the_svg');
svg_input.addEventListener("input",
function () {
updateSVG(svg_input.value);
}
);
function updateSVG(_d) {
svgPath.setAttributeNS(null, 'd', _d);
let _BB = svgPath.getBBox();
svgNode.setAttributeNS(null, 'viewBox',
_BB.x + " " + _BB.y + " " + _BB.width + " " + _BB.height);
moving_text.style["font-size"] = _BB.width / _BB.height + "em";
let _dur = svgPath.getTotalLength() / ( 25 * ( _BB.width / _BB.height ) );
animate.setAttributeNS(null, 'dur', _dur);
};
</script>
</body>
</html>
|
