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Viewing changes to fingerprintgpu/SegmentBoundingBoxes.qml

  • Committer: Florian Boucault
  • Date: 2016-05-25 08:19:05 UTC
  • Revision ID: florian.boucault@canonical.com-20160525081905-xj1591i0becrq9t1
support gu scaling

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fingerprintgpu/SegmentBoundingBoxes.qml
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import QtQuick 2.4
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QtObject {
 
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    id: segmentBoundingBoxes
 
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    property string source
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    onSourceChanged: parseBoundingBoxes(source)
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    property var boundingBoxes: []
 
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    property real width
 
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    property real height
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    property int count: boundingBoxes.length
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    function parseBoundingBoxes(source) {
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        xhr.onreadystatechange = function() {
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            if (xhr.readyState == XMLHttpRequest.DONE) {
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                var b = [];
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                var list = JSON.parse(xhr.responseText);
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                for (var i in list) {
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                    b[i] = list[i];
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                }
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                boundingBoxes = b;
 
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                var json = JSON.parse(xhr.responseText);
 
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                boundingBoxes = json["boxes"];
 
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                width = json["width"];
 
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                height = json["height"];
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            }
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        }
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        xhr.send();
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    }
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    function computeIntersections(hitBox) {
 
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        var absoluteHitBox = [hitBox[0] * width, hitBox[1] * height,
 
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                              hitBox[2] * width, hitBox[3] * height];
 
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        var intersections = [];
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        for (var i in boundingBoxes) {
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            var boundingBox = boundingBoxes[i];
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            if (intersects(hitBox, boundingBox)) {
 
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            if (intersects(absoluteHitBox, boundingBox)) {
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                intersections.push(i);
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            }
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        }