Work In Progress. Based on TextFitting
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January 1, 2020 08:41
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Text Bar Chart
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| license: mit |
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| <!DOCTYPE html> | |
| <head> | |
| <meta charset="utf-8"> | |
| <script src="https://d3js.org/d3.v4.min.js"></script> | |
| <style> | |
| body { margin:0;position:fixed;top:0;right:0;bottom:0;left:0; } | |
| rect { fill: blue; } | |
| text { fill: white; font-family: sans-serif; } | |
| </style> | |
| </head> | |
| <body> | |
| <script> | |
| var textString = "This text fits in the bar quite well", | |
| textId = "text1", | |
| fontSize = 14; | |
| var barSize = { width: 600, height: 100 }, | |
| barPosition = { x: 50, y: 50 }; | |
| var svg = d3.select("body").append("svg") | |
| .attr("width", 960) | |
| .attr("height", 500); | |
| var rectTextGroup = svg.append("g") | |
| .attr("transform", "translate(" + barPosition.x + "," + barPosition.y + ")") | |
| var rect = rectTextGroup.append("rect") | |
| .attr("width", barSize.width) | |
| .attr("height", barSize.height); | |
| var text = rectTextGroup.append("text") | |
| .attr("id", textId) | |
| .attr("text-anchor", "start") | |
| .text(textString.toUpperCase()); | |
| fitTextToRect(text.node(), rect.node(), 1.61); | |
| // This works but there might be a nicer way of calculating this, | |
| // scaling the font instead could be a solution | |
| function fitTextToRect(textNode, rectNode, fontMultiplier) { | |
| var textDimensions = textNode.getBBox(), | |
| rectDimensions = rectNode.getBBox(); | |
| var xStretch = rectDimensions.width / textDimensions.width, | |
| yStretch = rectDimensions.height / textDimensions.height; | |
| yStretch = yStretch * fontMultiplier; | |
| text.attr("transform", "scale(" + xStretch + "," + yStretch +")"); | |
| text.attr("y", textDimensions.height / fontMultiplier); | |
| } | |
| </script> | |
| </body> |
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