45 lines
1.2 KiB
JavaScript
45 lines
1.2 KiB
JavaScript
/**
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* Returns the specified element as a dicom attribute group/element.
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*
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* @param element - The group/element of the element (e.g. '00280009')
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* @param [defaultValue] - The value to return if the element is not present
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* @returns {*}
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*/
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DICOMWeb.getAttribute = function(element, defaultValue) {
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if (!element) {
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return defaultValue;
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}
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// Value is not present if the attribute has a zero length value
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if (!element.Value) {
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return defaultValue;
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}
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// Sanity check to make sure we have at least one entry in the array.
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if (!element.Value.length) {
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return defaultValue;
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}
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return convertToInt(element.Value);
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};
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function convertToInt(input) {
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function padFour(input) {
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var l = input.length;
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if (l == 0) return '0000';
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if (l == 1) return '000' + input;
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if (l == 2) return '00' + input;
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if (l == 3) return '0' + input;
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return input;
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}
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var output = '';
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for (var i = 0; i < input.length; i++) {
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for (var j = 0; j < input[i].length; j++) {
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output += padFour(input[i].charCodeAt(j).toString(16));
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}
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}
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return parseInt(output, 16);
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}
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