/// <summary> /// Generates a support profile using an intelligent algorithm for the specified customer. /// </summary> /// <param name="position"></param> /// <param name="pressureMeasurementSupine">Expects 12 measurement values between 0 and 100 millibar as measured with the test person laying on the back.</param> /// <param name="pressureMeasurementLateral">Expects 12 measurement values between 0 and 100 millibar as measured with the test person laying on the side.</param> /// <param name="gender"></param> /// <param name="personHeightCm">The height of the test person in centimeters.</param> /// <param name="personWeightKg">The weight of the test person in kilogram.</param> /// <param name="neutralProfileLetter">The letter representing the neutral (middle) stamp firmness on which the profile is based. For example, Vitario uses 'S' and Ergomometer NL uses 'D' as neutral stamp.</param> /// <param name="result">Holds the resulting profile that was generated through this algorithm. NULL if something went wrong.</param> /// <returns>Null if everything went fine or an exception.</returns> public static Exception GenerateProfileBasedOnPressureMapping(MeasurementPositions position, int[] pressureMeasurementSupine, int[] pressureMeasurementLateral, Genders gender, int personHeightCm, int personWeightKg, char neutralProfileLetter, out StampProfileGenerationResult result) { try { result = default(StampProfileGenerationResult); if (position == MeasurementPositions.Lateral) { int shoulderIndex, lordosisIndex, pelvisIndex = pressureMeasurementSupine.Length - 1; //generate the standard profile string profile = string.Join("", Enumerable.Repeat(neutralProfileLetter, 12)); bool personLyingPositionWrong = false; #region Shoulder /*Shoulder area is always stamps 1-4. If the measurement in supine position is bad (equal values), the measurement in lateral position is used. */ int[] shoulderAreaArray = position == MeasurementPositions.Supine ? pressureMeasurementSupine : pressureMeasurementLateral; shoulderIndex = GenerationUtils.GetIndexOfMaximum(shoulderAreaArray, 0, 3); if (GenerationUtils.IsLeftSideEqual(shoulderIndex, shoulderAreaArray) || shoulderIndex < 3 && GenerationUtils.IsRightSideEqual(shoulderIndex, shoulderAreaArray)) //if one of the values around the shoulder index is the same { shoulderAreaArray = position == MeasurementPositions.Supine ? pressureMeasurementLateral : pressureMeasurementSupine; shoulderIndex = GenerationUtils.GetIndexOfMaximum(shoulderAreaArray, 0, 3); } if (!GenerationUtils.IsLeftSideEqual(shoulderIndex, shoulderAreaArray) && shoulderIndex < 3 && GenerationUtils.IsRightSideEqual(shoulderIndex, shoulderAreaArray)) //if the value to the right is the same, move the shoulder index one to the right (e.g. 17 19 19 15) { shoulderIndex++; } else if (shoulderIndex == 0 && GenerationUtils.IsRightSideEqual(shoulderIndex, shoulderAreaArray) && shoulderAreaArray[2] == shoulderAreaArray[0]) //e.g. 17 17 17 19 { shoulderIndex = 1; } //now generate the profile for this area if (shoulderIndex == 0) { profile = profile.ReplaceAtIndex(0, 'T'); profile = profile.ReplaceAtIndex(1, 'K'); profile = profile.ReplaceAtIndex(2, 'K'); if (GenerationUtils.IsInRange(shoulderAreaArray[0], shoulderAreaArray[1], 2)) //if the first 2 values are similar, the profile changes a bit { profile = profile.ReplaceAtIndex(1, 'T'); profile = profile.ReplaceAtIndex(3, 'K'); } } else if (shoulderIndex == 1) { profile = profile.ReplaceAtIndex(0, 'K'); profile = profile.ReplaceAtIndex(1, 'T'); profile = profile.ReplaceAtIndex(2, 'K'); //if the values around the shoulder index are similar, the profile changes a bit if (GenerationUtils.IsInRange(shoulderAreaArray[0], shoulderAreaArray[1], 2)) { profile = profile.ReplaceAtIndex(0, 'T'); profile = profile.ReplaceAtIndex(3, 'K'); } if (GenerationUtils.IsInRange(shoulderAreaArray[1], shoulderAreaArray[2], 2)) { profile = profile.ReplaceAtIndex(2, 'T'); profile = profile.ReplaceAtIndex(3, 'K'); } } else if (shoulderIndex == 2 || shoulderIndex == 3) //indices at position 2 and 3 are treated the same, but an index at 3 hints that the person is not properly positioned on the mattress { profile = profile.ReplaceAtIndex(0, 'K'); profile = profile.ReplaceAtIndex(1, 'K'); profile = profile.ReplaceAtIndex(2, 'T'); profile = profile.ReplaceAtIndex(3, 'K'); if (shoulderAreaArray[1] + 2 >= shoulderAreaArray[2]) //if the value before the shoulder index is no more less than 2, the profile changes { if (gender == Genders.Female) { profile = profile.ReplaceAtIndex(0, 'T'); profile = profile.ReplaceAtIndex(1, 'T'); } else { profile = profile.ReplaceAtIndex(0, 'W'); profile = profile.ReplaceAtIndex(1, 'T'); } } if (shoulderIndex == 3) { personLyingPositionWrong = true; } } #endregion #region Pelvis area /*Pelvis area is always the peak value from right to left in a specific area. */ int[] pelvisAreaArray = position == MeasurementPositions.Supine ? pressureMeasurementSupine : pressureMeasurementLateral; if (personHeightCm >= 170) { //get the pelvis index (peak value from bottom to top, taking 6 values into account) for (int i = pelvisAreaArray.Length - 1; i >= 6; i--) { if (pelvisAreaArray[i] >= pelvisAreaArray[pelvisIndex]) { pelvisIndex = i; } else { break; } } } if (personHeightCm >= 160) { //get the pelvis index (peak value from bottom to top, taking 4 values into account) for (int i = pelvisAreaArray.Length - 3; i >= 6; i--) { if (pelvisAreaArray[i] >= pelvisAreaArray[pelvisIndex]) { pelvisIndex = i; } else { break; } } } else if (personHeightCm >= 150) { //get the pelvis index (peak value from bottom-3 to top, taking 3 values into account) for (int i = pelvisAreaArray.Length - 4; i >= 6; i--) { if (pelvisAreaArray[i] >= pelvisAreaArray[pelvisIndex]) { pelvisIndex = i; } else { break; } } } else //small persons < 150cm { //get the pelvis index (peak value from bottom-3 to top, taking 4 values into account) for (int i = pelvisAreaArray.Length - 4; i >= 5; i--) { if (pelvisAreaArray[i] >= pelvisAreaArray[pelvisIndex]) { pelvisIndex = i; } else { break; } } } if (pelvisIndex == 11 && personHeightCm < 190) //pelvis area cannot be at the last stamp for person smaller than 190cm { pelvisIndex = 10; } //modify profile profile = profile.ReplaceAtIndex(pelvisIndex, 'K'); if (gender == Genders.Male) //males have a smaller pelvis area --> smaller range of values (+/- 3) and allow only 2 "K"-stamps { if (GenerationUtils.IsInRange(pelvisAreaArray[pelvisIndex], pelvisAreaArray[pelvisIndex - 1], 3)) //if the value before the pelvis index is within 3mB, change its corresponding profile stamp { profile = profile.ReplaceAtIndex(pelvisIndex - 1, 'K'); } } else //females have a bigger pelvis area --> higher range of values (+/- 5) { if (pelvisIndex < 11 && GenerationUtils.IsInRange(pelvisAreaArray[pelvisIndex], pelvisAreaArray[pelvisIndex + 1], 5)) //if the value after the pelvis index is within 4mB, change its corresponding profile stamp { profile = profile.ReplaceAtIndex(pelvisIndex + 1, 'K'); } if (GenerationUtils.IsInRange(pelvisAreaArray[pelvisIndex], pelvisAreaArray[pelvisIndex - 1], 5)) //if the value before the pelvis index is within 5mB, change its corresponding profile stamp { profile = profile.ReplaceAtIndex(pelvisIndex - 1, 'K'); } } #endregion #region Lordosis area /* Lordosis area is between shoulder and pelvis area and can never be before stamp 5. The lordosis index is always the index of the lowest value between shoulder and pelvis. */ //calculate the BMI of the test person (determines which stamp is used in the lordosis area) double heightM = personHeightCm / 100d; double bmi = personWeightKg / (heightM * heightM); //body mass index int[] lordosisAreaArray = position == MeasurementPositions.Supine ? pressureMeasurementSupine : pressureMeasurementLateral; lordosisIndex = GenerationUtils.GetIndexOfMinimum(lordosisAreaArray, 4, pelvisIndex - 1); if (bmi > 30) //special rule: if the person is overweight, the lordosis index should be calculated based on the supine measurement { int lordosisIdxSupine = GenerationUtils.GetIndexOfMinimum(pressureMeasurementSupine, 4, pelvisIndex - 1); int lordosisIdxLateral = GenerationUtils.GetIndexOfMinimum(pressureMeasurementLateral, 4, pelvisIndex - 1); if (lordosisIdxSupine > lordosisIdxLateral) { lordosisIndex = lordosisIdxSupine; } } //this step is useless because we always use the lateral values here if (lordosisAreaArray[lordosisIndex - 1] == lordosisAreaArray[lordosisIndex] && lordosisAreaArray[lordosisIndex + 1] == lordosisAreaArray[lordosisIndex]) //if the values around the lordosis index are equal, try to get a better result by using the lateral measurement { lordosisAreaArray = pressureMeasurementLateral; lordosisIndex = GenerationUtils.GetIndexOfMinimum(lordosisAreaArray, 4, pelvisIndex - 1); } if (personHeightCm > 155 && lordosisIndex <= 4 && gender == Genders.Male) //special rule: lordosis area cannot be at stamp 5 or below for small persons { lordosisIndex = 5; } else if (personHeightCm > 160 && lordosisIndex <= 4 && gender == Genders.Female) //special rule: lordosis area cannot be at stamp 5 or below for small persons { lordosisIndex = 5; } if (pelvisIndex - lordosisIndex > 3) //special rule: if the distance between pelvis and lordosis is more than 2 stamps, something is wrong --> "move" the lordosis index closer to the pelvis index { lordosisIndex = pelvisIndex - 3; } if (pelvisIndex - lordosisIndex == 1) //special rule: if lordosis and pelvis indices were determined to be next to each other, they have to be separated by 1 stamp { lordosisIndex = lordosisIndex - 1; } //modify the profile if ((gender == Genders.Male && bmi < 20) || (gender == Genders.Female && bmi < 19)) //person appears to be underweight --> neutral ("D" or "S") stamp (so the same stamp as in surrounding area) { profile = profile.ReplaceAtIndex(lordosisIndex, neutralProfileLetter); } else if (bmi > 30) //person appears to be clearly overweight --> "B" stamp { profile = profile.ReplaceAtIndex(lordosisIndex, 'B'); } else { profile = profile.ReplaceAtIndex(lordosisIndex, 'L'); //normal weight --> "L" stamp } if (lordosisIndex == pelvisIndex - 1 && profile[lordosisIndex] == 'K') //if the lordosis index is directly before the pelvis index, no 'K'-stamp is allowed in the lordosis area (which can't happen with the current algorithm anyways) { profile = profile.ReplaceAtIndex(lordosisIndex, 'L'); } //special rule: "K" must not come directly after "L" if (profile.Contains("LK")) //"L" must not immediately followed by "K" (distance between lordosis and pelvis area is at least 1 neutral stamp) { profile = profile.Replace("LK", "L" + neutralProfileLetter.ToString()); if (profile.Contains("L" + neutralProfileLetter + neutralProfileLetter)) //e.g. "LDD" { profile = profile.Replace("L" + neutralProfileLetter + neutralProfileLetter, "L" + neutralProfileLetter + "K"); //add the replaced "K" at the end of the pelvis area } } //special rule: if the lordosis index is on stamp 5, stamp 4 must be neutral and stamp 3 must not be "T" if (lordosisIndex == 4) { profile = profile.ReplaceAtIndex(3, neutralProfileLetter); if (profile[2] == 'T') { profile = profile.ReplaceAtIndex(2, 'K'); } } #endregion result = new StampProfileGenerationResult() { SupportProfile = profile.Select(s => s.ToString()).ToArray(), IsPersonLyingPositionWrong = personLyingPositionWrong }; return(null); } else if (position == MeasurementPositions.Supine) { int shoulderIndex, lordosisIndex, pelvisIndex = pressureMeasurementSupine.Length - 1; //generate the standard profile string profile = string.Join("", Enumerable.Repeat(neutralProfileLetter, 12)); bool personLyingPositionWrong = false; #region Shoulder /*Shoulder area is always stamps 1-3. */ int[] shoulderAreaArray = pressureMeasurementSupine; shoulderIndex = GenerationUtils.GetIndexOfMaximum(shoulderAreaArray, 0, 2); //now generate the profile for this area if (shoulderIndex == 0) { profile = profile.ReplaceAtIndex(0, 'T'); profile = profile.ReplaceAtIndex(1, 'K'); profile = profile.ReplaceAtIndex(2, 'K'); } else if (shoulderIndex == 1 || shoulderIndex == 2) { profile = profile.ReplaceAtIndex(0, 'K'); profile = profile.ReplaceAtIndex(1, 'T'); profile = profile.ReplaceAtIndex(2, 'K'); } #endregion #region Pelvis area /*Pelvis area is always the peak value from right to left in a specific area. */ int[] pelvisAreaArray = position == MeasurementPositions.Supine ? pressureMeasurementSupine : pressureMeasurementLateral; if (personHeightCm >= 170) { //get the pelvis index (peak value from bottom to top, taking 6 values into account) for (int i = pelvisAreaArray.Length - 1; i >= 6; i--) { if (pelvisAreaArray[i] >= pelvisAreaArray[pelvisIndex]) { pelvisIndex = i; } else { break; } } } if (personHeightCm >= 160) { //get the pelvis index (peak value from bottom to top, taking 4 values into account) for (int i = pelvisAreaArray.Length - 3; i >= 6; i--) { if (pelvisAreaArray[i] >= pelvisAreaArray[pelvisIndex]) { pelvisIndex = i; } else { break; } } } else if (personHeightCm >= 150) { //get the pelvis index (peak value from bottom-3 to top, taking 3 values into account) for (int i = pelvisAreaArray.Length - 4; i >= 6; i--) { if (pelvisAreaArray[i] >= pelvisAreaArray[pelvisIndex]) { pelvisIndex = i; } else { break; } } } else //small persons < 150cm { //get the pelvis index (peak value from bottom-3 to top, taking 4 values into account) for (int i = pelvisAreaArray.Length - 4; i >= 5; i--) { if (pelvisAreaArray[i] >= pelvisAreaArray[pelvisIndex]) { pelvisIndex = i; } else { break; } } } if (pelvisIndex == 11 && personHeightCm < 190) //pelvis area cannot be at the last stamp for person smaller than 190cm { pelvisIndex = 10; } //modify profile profile = profile.ReplaceAtIndex(pelvisIndex, 'K'); #endregion #region Lordosis area /* Lordosis area is between shoulder and pelvis area and can never be before stamp 5. The lordosis index is always the index of the lowest value between shoulder and pelvis. */ //calculate the BMI of the test person (determines which stamp is used in the lordosis area) double heightM = personHeightCm / 100d; double bmi = personWeightKg / (heightM * heightM); //body mass index int[] lordosisAreaArray = pressureMeasurementSupine; lordosisIndex = GenerationUtils.GetIndexOfMinimum(lordosisAreaArray, 4, pelvisIndex - 1); if (personHeightCm > 155 && lordosisIndex <= 4 && gender == Genders.Male) //special rule: lordosis area cannot be at stamp 5 or below for small persons { lordosisIndex = 5; } else if (personHeightCm > 160 && lordosisIndex <= 4 && gender == Genders.Female) //special rule: lordosis area cannot be at stamp 5 or below for small persons { lordosisIndex = 5; } if (pelvisIndex - lordosisIndex == 1) //special rule: if lordosis and pelvis indices were determined to be next to each other, they have to be separated by 1 stamp { lordosisIndex = lordosisIndex - 1; } //modify the profile if ((gender == Genders.Male && bmi < 20) || (gender == Genders.Female && bmi < 19)) //person appears to be underweight --> neutral ("D" or "S") stamp (so the same stamp as in surrounding area) { profile = profile.ReplaceAtIndex(lordosisIndex, neutralProfileLetter); } else if (bmi > 30) //person appears to be clearly overweight --> "B" stamp { profile = profile.ReplaceAtIndex(lordosisIndex, 'B'); } else { profile = profile.ReplaceAtIndex(lordosisIndex, 'L'); //normal weight --> "L" stamp } #endregion result = new StampProfileGenerationResult() { SupportProfile = profile.Select(s => s.ToString()).ToArray(), IsPersonLyingPositionWrong = personLyingPositionWrong }; return(null); } else { return(null); } } catch (Exception ex) { result = default(StampProfileGenerationResult); return(ex); } }
/// <summary> /// Generates a support profile using an intelligent algorithm for the specified customer. /// </summary> /// <param name="position"></param> /// <param name="pressureMeasurementSupine">Expects 12 measurement values between 0 and 100 millibar as measured with the test person laying on the back.</param> /// <param name="pressureMeasurementLateral">Expects 12 measurement values between 0 and 100 millibar as measured with the test person laying on the side.</param> /// <param name="gender"></param> /// <param name="personHeightCm">The height of the test person in centimeters.</param> /// <param name="personWeightKg">The weight of the test person in kilogram.</param> /// <param name="neutralProfileLetter">The letter representing the neutral (middle) role firmness on which the profile is based. For example, Vitario uses 'S' and Ergomometer NL uses 'D' as neutral element.</param> /// <param name="result">Holds the resulting profile that was generated through this algorithm. NULL if something went wrong.</param> /// <returns>Null if everything went fine or an exception.</returns> public static Exception GenerateProfileBasedOnPressureMapping(MeasurementPositions position, int[] pressureMeasurementSupine, int[] pressureMeasurementLateral, Genders gender, int personHeightCm, int personWeightKg, char neutralProfileLetter, out RoleProfileGenerationResult result) { try { result = default(RoleProfileGenerationResult); if (position == MeasurementPositions.Lateral) { int shoulderIndex, lordosisIndex, pelvisIndex = pressureMeasurementSupine.Length - 1; //generate the standard profile string profile = string.Join("", Enumerable.Repeat(neutralProfileLetter, 12)); bool personLyingPositionWrong = false; #region Shoulder /*Shoulder area is always roles 1-4. If the measurement in supine position is bad (equal values), the measurement in lateral position is used. */ int[] shoulderAreaArray = position == MeasurementPositions.Supine ? pressureMeasurementSupine : pressureMeasurementLateral; shoulderIndex = GenerationUtils.GetIndexOfMaximum(shoulderAreaArray, 0, 3); if (GenerationUtils.IsLeftSideEqual(shoulderIndex, shoulderAreaArray) || shoulderIndex < 3 && GenerationUtils.IsRightSideEqual(shoulderIndex, shoulderAreaArray)) //if one of the values around the shoulder index is the same { shoulderAreaArray = position == MeasurementPositions.Supine ? pressureMeasurementLateral : pressureMeasurementSupine; shoulderIndex = GenerationUtils.GetIndexOfMaximum(shoulderAreaArray, 0, 3); } if (!GenerationUtils.IsLeftSideEqual(shoulderIndex, shoulderAreaArray) && shoulderIndex < 3 && GenerationUtils.IsRightSideEqual(shoulderIndex, shoulderAreaArray)) //if the value to the right is the same, move the shoulder index one to the right (e.g. 17 19 19 15) { shoulderIndex++; } else if (shoulderIndex == 0 && GenerationUtils.IsRightSideEqual(shoulderIndex, shoulderAreaArray) && shoulderAreaArray[2] == shoulderAreaArray[0]) //e.g. 17 17 17 19 { shoulderIndex = 1; } //now generate the profile for this area if (shoulderIndex == 0) { profile = profile.ReplaceAtIndex(0, 'T'); profile = profile.ReplaceAtIndex(1, 'K'); profile = profile.ReplaceAtIndex(2, 'K'); if (GenerationUtils.IsInRange(shoulderAreaArray[0], shoulderAreaArray[1], 2)) //if the first 2 values are similar, the profile changes a bit { profile = profile.ReplaceAtIndex(1, 'T'); profile = profile.ReplaceAtIndex(3, 'K'); } } else if (shoulderIndex == 1) { profile = profile.ReplaceAtIndex(0, 'K'); profile = profile.ReplaceAtIndex(1, 'T'); profile = profile.ReplaceAtIndex(2, 'K'); //if the values around the shoulder index are similar, the profile changes a bit if (GenerationUtils.IsInRange(shoulderAreaArray[0], shoulderAreaArray[1], 2)) { profile = profile.ReplaceAtIndex(0, 'T'); profile = profile.ReplaceAtIndex(3, 'K'); } if (GenerationUtils.IsInRange(shoulderAreaArray[1], shoulderAreaArray[2], 2)) { profile = profile.ReplaceAtIndex(2, 'T'); profile = profile.ReplaceAtIndex(3, 'K'); } } else if (shoulderIndex == 2 || shoulderIndex == 3) //indices at position 2 and 3 are treated the same, but an index at 3 hints that the person is not properly positioned on the mattress { profile = profile.ReplaceAtIndex(0, 'K'); profile = profile.ReplaceAtIndex(1, 'K'); profile = profile.ReplaceAtIndex(2, 'T'); profile = profile.ReplaceAtIndex(3, 'K'); if (shoulderAreaArray[1] + 2 >= shoulderAreaArray[2]) //if the value before the shoulder index is no more less than 2, the profile changes { if (gender == Genders.Female) { profile = profile.ReplaceAtIndex(0, 'T'); profile = profile.ReplaceAtIndex(1, 'T'); } else { profile = profile.ReplaceAtIndex(0, 'W'); profile = profile.ReplaceAtIndex(1, 'T'); } } if (shoulderIndex == 3) { personLyingPositionWrong = true; } } #endregion #region Pelvis area /*Pelvis area is always the peak value from right to left. */ int[] pelvisAreaArray = position == MeasurementPositions.Supine ? pressureMeasurementSupine : pressureMeasurementLateral; //get the pelvis index (peak value from bottom to top, taking 6 values into account) for (int i = pelvisAreaArray.Length - 1; i >= 6; i--) { if (pelvisAreaArray[i] >= pelvisAreaArray[pelvisIndex]) { pelvisIndex = i; } else { break; } } if (pelvisIndex == 11 && personHeightCm < 190) //pelvis area cannot be at the last role for person smaller than 190cm { pelvisIndex = 10; } //modify profile profile = profile.ReplaceAtIndex(pelvisIndex, 'K'); if (gender == Genders.Male) //males have a smaller pelvis area --> smaller range of values (+/- 3) and allow only 2 "K"-roles { if (GenerationUtils.IsInRange(pelvisAreaArray[pelvisIndex], pelvisAreaArray[pelvisIndex - 1], 3)) //if the value before the pelvis index is within 4mB, change its corresponding profile role { profile = profile.ReplaceAtIndex(pelvisIndex - 1, 'K'); } } else //females have a bigger pelvis area --> higher range of values (+/- 5) { if (pelvisIndex < 11 && GenerationUtils.IsInRange(pelvisAreaArray[pelvisIndex], pelvisAreaArray[pelvisIndex + 1], 5)) //if the value after the pelvis index is within 4mB, change its corresponding profile role { profile = profile.ReplaceAtIndex(pelvisIndex + 1, 'K'); } if (GenerationUtils.IsInRange(pelvisAreaArray[pelvisIndex], pelvisAreaArray[pelvisIndex - 1], 5)) //if the value before the pelvis index is within 4mB, change its corresponding profile role { profile = profile.ReplaceAtIndex(pelvisIndex - 1, 'K'); } } #endregion #region Lordosis area /* Lordosis area is between shoulder and pelvis area and can never be before role 5. The lordosis index is always the index of the lowest value between shoulder and pelvis. */ //calculate the BMI of the test person (determines which role is used in the lordosis area) double heightM = personHeightCm / 100d; double bmi = personWeightKg / (heightM * heightM); //body mass index int[] lordosisAreaArray = pressureMeasurementSupine; lordosisIndex = GenerationUtils.GetIndexOfMinimum(lordosisAreaArray, 4, pelvisIndex - 1); if (personHeightCm > 155 && lordosisIndex <= 4 && gender == Genders.Male) //special rule: lordosis area cannot be at role 5 or below for small persons { lordosisIndex = 5; } else if (personHeightCm > 160 && lordosisIndex <= 4 && gender == Genders.Female) //special rule: lordosis area cannot be at role 5 or below for small persons { lordosisIndex = 5; } if (pelvisIndex - lordosisIndex == 1) //special rule: if lordosis and pelvis indices were determined to be next to each other, they have to be separated by 1 role { lordosisIndex = lordosisIndex - 1; } //modify the profile if (bmi > 30) //person appears to be clearly overweight --> "B" element { profile = profile.ReplaceAtIndex(lordosisIndex, 'B'); } else { profile = profile.ReplaceAtIndex(lordosisIndex, neutralProfileLetter); //normal weight --> neutral element } //special rule: "K" must not come directly after "B" if (profile.Contains("BK")) //"B" must not be immediately followed by "K" (distance between lordosis and pelvis area is at least 1 neutral role) { profile = profile.Replace("BK", "B" + neutralProfileLetter).Replace("B" + neutralProfileLetter + neutralProfileLetter, "B" + neutralProfileLetter + "K"); //also add the replaced "K" at the end of the pelvis area } #endregion result = new RoleProfileGenerationResult() { SupportProfile = profile.Select(s => s.ToString()).ToArray(), IsPersonLyingPositionWrong = personLyingPositionWrong }; return(null); } else if (position == MeasurementPositions.Supine) { int shoulderIndex, lordosisIndex, pelvisIndex = pressureMeasurementSupine.Length - 1; //generate the standard profile string profile = string.Join("", Enumerable.Repeat(neutralProfileLetter, 12)); bool personLyingPositionWrong = false; #region Shoulder /*Shoulder area is always roles 1-3. Ony stam 1 and 2 can be changed to 'T'. */ int[] shoulderAreaArray = pressureMeasurementSupine; shoulderIndex = GenerationUtils.GetIndexOfMaximum(shoulderAreaArray, 0, 2); //now generate the profile for this area if (shoulderIndex == 0) { profile = profile.ReplaceAtIndex(0, 'T'); profile = profile.ReplaceAtIndex(1, 'K'); profile = profile.ReplaceAtIndex(2, 'K'); } else if (shoulderIndex == 1 || shoulderIndex == 2) { profile = profile.ReplaceAtIndex(0, 'K'); profile = profile.ReplaceAtIndex(1, 'T'); profile = profile.ReplaceAtIndex(2, 'K'); } #endregion #region Pelvis area /*Pelvis area is always the peak value from right to left. */ int[] pelvisAreaArray = pressureMeasurementSupine; //get the pelvis index (peak value from bottom to top, taking 6 values into account) for (int i = pelvisAreaArray.Length - 1; i >= 6; i--) { if (pelvisAreaArray[i] >= pelvisAreaArray[pelvisIndex]) { pelvisIndex = i; } else { break; } } if (pelvisIndex == 11 && personHeightCm < 190) //pelvis area cannot be at the last role for person smaller than 190cm { pelvisIndex = 10; } //modify profile profile = profile.ReplaceAtIndex(pelvisIndex, 'K'); #endregion #region Lordosis area /* Lordosis area is between shoulder and pelvis area and can never be before role 5. The lordosis index is always the index of the lowest value between shoulder and pelvis. */ //calculate the BMI of the test person (determines which role is used in the lordosis area) double heightM = personHeightCm / 100d; double bmi = personWeightKg / (heightM * heightM); //body mass index int[] lordosisAreaArray = pressureMeasurementSupine; lordosisIndex = GenerationUtils.GetIndexOfMinimum(lordosisAreaArray, 4, pelvisIndex - 1); if (personHeightCm > 155 && lordosisIndex <= 4 && gender == Genders.Male) //special rule: lordosis area cannot be at role 5 or below for small persons { lordosisIndex = 5; } else if (personHeightCm > 160 && lordosisIndex <= 4 && gender == Genders.Female) //special rule: lordosis area cannot be at role 5 or below for small persons { lordosisIndex = 5; } if (pelvisIndex - lordosisIndex == 1) //special rule: if lordosis and pelvis indices were determined to be next to each other, they have to be separated by 1 role { lordosisIndex = lordosisIndex - 1; } //modify the profile if (bmi > 30) //person appears to be clearly overweight --> "B" role { profile = profile.ReplaceAtIndex(lordosisIndex, 'B'); } else { profile = profile.ReplaceAtIndex(lordosisIndex, neutralProfileLetter); //normal weight --> neutral role } //special rule: "K" must not come directly after "B" if (profile.Contains("BK")) //"B" must not immediately followed by "K" (distance between lordosis and pelvis area is at least 1 neutral role) { profile = profile.Replace("BK", "B" + neutralProfileLetter).Replace("B" + neutralProfileLetter + neutralProfileLetter, "B" + neutralProfileLetter + "K"); //also add the replaced "K" at the end of the pelvis area } #endregion result = new RoleProfileGenerationResult() { SupportProfile = profile.Select(s => s.ToString()).ToArray(), IsPersonLyingPositionWrong = personLyingPositionWrong }; return(null); } else { return(null); } } catch (Exception ex) { result = default(RoleProfileGenerationResult); return(ex); } }