private List <PointF> NormalizePoints(ProtractorRoiInfo roiInfo)
{
float aspectRatio = 1F;
if (roiInfo.PixelAspectRatio.IsNull)
{
if (!roiInfo.NormalizedPixelSpacing.IsNull)
{
aspectRatio = (float)roiInfo.NormalizedPixelSpacing.AspectRatio;
}
}
else
{
aspectRatio = roiInfo.PixelAspectRatio.Value;
}
List <PointF> normalized = new List <PointF>();
foreach (PointF point in roiInfo.Points)
{
normalized.Add(new PointF(point.X, point.Y * aspectRatio));
}
return(normalized);
}
private IRoiAnalyzerResult Analyze(ProtractorRoiInfo roiInfo, RoiAnalysisMode mode)
{
// Don't show the callout until the second ray is drawn
if (roiInfo.Points.Count < 3)
{
//return SR.ToolsMeasurementSetVertex;
return(new RoiAnalyzerResultNoValue("Protactor", SR.ToolsMeasurementSetVertex));
}
List <PointF> normalizedPoints = NormalizePoints(roiInfo);
double angle = Vector.SubtendedAngle(normalizedPoints[0], normalizedPoints[1], normalizedPoints[2]);
//return String.Format(SR.ToolsMeasurementFormatDegrees, Math.Abs(angle));
return(new SingleValueRoiAnalyzerResult("Protactor", SR.ToolsMeasurementFormatDegrees, Math.Abs(angle), String.Format(SR.ToolsMeasurementFormatDegrees, Math.Abs(angle))));
}