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    <p>Thanks for your help!</p> <p>Although <strong>Jonathans</strong> hint to use the Sobel filter definitely would work, I chose <strong>Sparrs</strong> approach of first converting the bitmap into a vector image (via Inkscape) and then processing the SVG file. After studying some of the basics of the SVG spec, it was pretty easy to extract the - for HTML image maps needed - X/Y coordinates from all the other junk and generate a suitable code.</p> <p>Although it’s no rocket science, someone might find this piece of code useful:</p> <pre><code>// input format: M 166,362.27539 C 163.525,360.86029 161.3875,359.43192 161.25,359.10124 C ... private static void Svg2map(string svg_input) { StringBuilder stringToFile = new StringBuilder(); // get rid of some spaces and characters var workingString = svg_input.Replace("z", "").Replace(" M ", "M").Replace(" C ", "C"); // split into seperate polygons var polygons = workingString.Split('M'); foreach (var polygon in polygons) { if (!polygon.Equals(String.Empty)) { // each polygon is a clickable area stringToFile.Append("&lt;area shape=\"poly\" coords=\""); // split into point information var positionInformation = polygon.Split('C'); foreach (var position in positionInformation) { var noise = position.Trim().Split(' '); // only the first x/y-coordinates after C are relevant var point = noise[0].Split(','); foreach (var value in point) { var valueParts = value.Split('.'); // remove part after comma - we don't need this accurancy in HTML stringToFile.Append(valueParts[0]); // comma for seperation - don't worry, we'll clean the last ones within an area out later stringToFile.Append(","); } } stringToFile.AppendLine("\" href=\"targetpage.html\" alt=\"Description\" /&gt;"); } } // clean obsolete commas - not pretty nor efficient stringToFile = stringToFile.Replace(",\"", "\""); var fs = new StreamWriter(new FileStream("output.txt", FileMode.Create)); fs.Write(stringToFile.ToString()); fs.Close(); } </code></pre>
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    1. USGerhard Dinhof
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    1. COEmbarrassingly I am unable to identify what language that is just by looking at it. The tell-tale 'var' says javascript, but the headers look more like C++ or Java. T.T; is it C# ??? Maybe?
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Detail views are divided into sections. All the information in the data section comes from columns in the selected row. The other sections display data from other, related rows.

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