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mario
2025-02-26 14:49:25 +07:00
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dcm4chee/default/tmp/deploy/tmp7473912347174030350oviyam2-exp.war/js/ImageOrientation.js Normal file
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function ImageOrientation() {
this.obliquityThresholdCosineValue = 0.8;
}
ImageOrientation.prototype.getMajorAxisFromPatientRelativeDirectionCosine = function(x, y, z) {
var axis = null;
var orientationX = x < 0 ? "R" : "L";
var orientationY = y < 0 ? "A" : "P";
var orientationZ = z < 0 ? "F" : "H";
var absX = Math.abs(x);
var absY = Math.abs(y);
var absZ = Math.abs(z);
if (absX > this.obliquityThresholdCosineValue && absX>absY && absX>absZ) {
axis=orientationX;
} else if (absY > this.obliquityThresholdCosineValue && absY>absX && absY>absZ) {
axis=orientationY;
} else if (absZ > this.obliquityThresholdCosineValue && absZ>absX && absZ>absY) {
axis=orientationZ;
}
return axis;
}
ImageOrientation.prototype.makeImageOrientationLabelFromImageOrientationPatient = function(rowX, rowY, rowZ, colX, colY, colZ) {
var label = null;
var rowAxis = this.getMajorAxisFromPatientRelativeDirectionCosine(rowX,rowY,rowZ);
var colAxis = this.getMajorAxisFromPatientRelativeDirectionCosine(colX,colY,colZ);
if ((rowAxis != null) && (colAxis != null)) {
if (((rowAxis == "R") || (rowAxis == "L")) && ((colAxis == "A") || (colAxis == "P")))
label="AXIAL";
else if (((colAxis == "R") || (colAxis == "L")) && ((rowAxis == "A") || (rowAxis == "P")))
label="AXIAL";
else if (((rowAxis == "R") || (rowAxis == "L")) && ((colAxis == "H") || (colAxis == "F")))
label="CORONAL";
else if (((colAxis == "R") || (colAxis == "L")) && ((rowAxis == "H") || (rowAxis == "F")))
label="CORONAL";
else if (((rowAxis == "A") || (rowAxis == "P")) && ((colAxis == "H") || (colAxis == "F")))
label="SAGITTAL";
else if (((colAxis == "A") || (colAxis == "P")) && ((rowAxis == "H") || (rowAxis == "F")))
label="SAGITTAL";
} else {
label="OBLIQUE";
}
return label;
}
ImageOrientation.prototype.makePatientOrientationFromPatientRelativeDirectionCosine = function(x, y, z) {
var buffer = "";
var orientationX = x < 0 ? "R" : "L";
var orientationY = y < 0 ? "A" : "P";
var orientationZ = z < 0 ? "F" : "H";
var absX = Math.abs(x);
var absY = Math.abs(y);
var absZ = Math.abs(z);
for (var i=0; i<3; ++i) {
if (absX>0.0001 && absX>absY && absX>absZ) {
buffer += orientationX;
absX = 0;
} else if (absY>0.0001 && absY>absX && absY>absZ) {
buffer += orientationY;
absY = 0;
} else if (absZ>0.0001 && absZ>absX && absZ>absY) {
buffer += orientationZ;
absZ = 0;
} else {
break;
}
}
return buffer;
}
ImageOrientation.prototype.getImagePlane = function(imageOrientation) {
var imageOrientationArray = [];
imageOrientationArray = imageOrientation.split("\\");
var _imgRowCosx = parseFloat(imageOrientationArray[0]);
var _imgRowCosy = parseFloat(imageOrientationArray[1]);
var _imgRowCosz = parseFloat(imageOrientationArray[2]);
var _imgColCosx = parseFloat(imageOrientationArray[3]);
var _imgColCosy = parseFloat(imageOrientationArray[4]);
var _imgColCosz = parseFloat(imageOrientationArray[5]);
var plane = this.makeImageOrientationLabelFromImageOrientationPatient(_imgRowCosx, _imgRowCosy, _imgRowCosz, _imgColCosx, _imgColCosy, _imgColCosz);
return plane;
}
ImageOrientation.prototype.getOrientation = function(imageOrientation) {
var imageOrientationArray = [];
//var imgOrientation = [];
imageOrientationArray = imageOrientation.split("\\");
var _imgRowCosx = parseFloat(imageOrientationArray[0]);
var _imgRowCosy = parseFloat(imageOrientationArray[1]);
var _imgRowCosz = parseFloat(imageOrientationArray[2]);
var _imgColCosx = parseFloat(imageOrientationArray[3]);
var _imgColCosy = parseFloat(imageOrientationArray[4]);
var _imgColCosz = parseFloat(imageOrientationArray[5]);
imgOrientation = new Array(2);
imgOrientation[0] = this.makePatientOrientationFromPatientRelativeDirectionCosine(_imgRowCosx, _imgRowCosy, _imgRowCosz);
imgOrientation[1] = this.makePatientOrientationFromPatientRelativeDirectionCosine(_imgColCosx, _imgColCosy, _imgColCosz);
var plane = this.makeImageOrientationLabelFromImageOrientationPatient(_imgRowCosx, _imgRowCosy, _imgRowCosz, _imgColCosx, _imgColCosy, _imgColCosz);
if(plane == "SAGITTAL") {
imgOrientation[1] = imgOrientation[1].replace("H", "S");
imgOrientation[1] = imgOrientation[1].replace("F", "I");
}
return(imgOrientation[0].substring(0, Math.min(imgOrientation[0].length, 2)) + "\\" + imgOrientation[1].substring(0, Math.min(imgOrientation[1].length, 2)));
}