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153 changes: 153 additions & 0 deletions
153
Converters/ArcGIS/Speckle.Converters.ArcGIS3/Utils/CRSoffsetRotation.cs
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,153 @@ | ||
| using Objects.BuiltElements.Revit; | ||
| using Speckle.Core.Kits; | ||
| using Speckle.Core.Models; | ||
|
|
||
| namespace Speckle.Converters.ArcGIS3.Utils; | ||
|
|
||
| /// <summary> | ||
| /// Container with origin offsets and rotation angle for the specified SpatialReference | ||
| /// Offsets and rotation will modify geometry on Send, so non-GIS apps can receive it correctly | ||
| /// Receiving GIS geometry in GIS hostApp will "undo" the geometry modifications according to the offsets and rotation applied before | ||
| /// In the future, CAD/BIM objects will contain ProjectInfo data with CRS and offsets, so this object can be generated on Recieve | ||
| /// TODO: consider how to generate this object to receive non-GIS data already now, without it having ProjectInfo object | ||
| /// </summary> | ||
| public struct CRSoffsetRotation | ||
| { | ||
| public ACG.SpatialReference SpatialReference { get; } | ||
| public string SpeckleUnitString { get; set; } | ||
| public double LatOffset { get; set; } | ||
| public double LonOffset { get; set; } | ||
| public double TrueNorthRadians { get; set; } | ||
|
|
||
| public SOG.Point OffsetRotateOnReceive(SOG.Point pointOriginal) | ||
| { | ||
| // scale point to match units of the SpatialReference | ||
| string originalUnits = pointOriginal.units; | ||
| SOG.Point point = ScalePoint(pointOriginal, originalUnits, SpeckleUnitString); | ||
|
|
||
| // 1. rotate coordinates | ||
| NormalizeAngle(); | ||
| double x2 = point.x * Math.Cos(TrueNorthRadians) - point.y * Math.Sin(TrueNorthRadians); | ||
| double y2 = point.x * Math.Sin(TrueNorthRadians) + point.y * Math.Cos(TrueNorthRadians); | ||
| // 2. offset coordinates | ||
| x2 += LonOffset; | ||
| y2 += LatOffset; | ||
| SOG.Point movedPoint = new(x2, y2, point.z, SpeckleUnitString); | ||
|
|
||
| return movedPoint; | ||
| } | ||
|
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| public SOG.Point OffsetRotateOnSend(SOG.Point point) | ||
| { | ||
| // scale point to match units of the SpatialReference | ||
| string originalUnits = point.units; | ||
| point = ScalePoint(point, originalUnits, SpeckleUnitString); | ||
|
|
||
| // 1. offset coordinates | ||
| NormalizeAngle(); | ||
| double x2 = point.x - LonOffset; | ||
| double y2 = point.y - LatOffset; | ||
| // 2. rotate coordinates | ||
| x2 = x2 * Math.Cos(TrueNorthRadians) + y2 * Math.Sin(TrueNorthRadians); | ||
| y2 = -x2 * Math.Sin(TrueNorthRadians) + y2 * Math.Cos(TrueNorthRadians); | ||
| SOG.Point movedPoint = new(x2, y2, point.z, SpeckleUnitString); | ||
|
|
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| return movedPoint; | ||
| } | ||
|
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| private readonly SOG.Point ScalePoint(SOG.Point point, string fromUnit, string toUnit) | ||
| { | ||
| double scaleFactor = Units.GetConversionFactor(fromUnit, toUnit); | ||
| return new SOG.Point(point.x * scaleFactor, point.y * scaleFactor, point.z * scaleFactor, toUnit); | ||
| } | ||
|
|
||
| private readonly string GetSpeckleUnit(ACG.SpatialReference spatialReference) | ||
| { | ||
| return new ArcGISToSpeckleUnitConverter().ConvertOrThrow(spatialReference.Unit); | ||
| } | ||
|
|
||
| private void NormalizeAngle() | ||
| { | ||
| if (TrueNorthRadians < -2 * Math.PI || TrueNorthRadians > 2 * Math.PI) | ||
| { | ||
| TrueNorthRadians = TrueNorthRadians % 2 * Math.PI; | ||
| } | ||
| } | ||
|
|
||
| public static double? RotationFromRevitData(Base rootObject) | ||
| { | ||
| // rewrite function to take into account Local reference point in Revit, and Transformation matrix | ||
| foreach (KeyValuePair<string, object?> prop in rootObject.GetMembers(DynamicBaseMemberType.Dynamic)) | ||
| { | ||
| if (prop.Key == "info") | ||
| { | ||
| ProjectInfo? revitProjInfo = (ProjectInfo?)rootObject[prop.Key]; | ||
| if (revitProjInfo != null) | ||
| { | ||
| try | ||
| { | ||
| if (revitProjInfo["locations"] is List<Base> locationList && locationList.Count > 0) | ||
| { | ||
| Base location = locationList[0]; | ||
| return Convert.ToDouble(location["trueNorth"]); | ||
| } | ||
| } | ||
| catch (Exception ex) when (ex is FormatException || ex is InvalidCastException || ex is OverflowException) | ||
| { | ||
| // origin not found, do nothing | ||
| } | ||
| break; | ||
| } | ||
| } | ||
| } | ||
| return null; | ||
| } | ||
|
|
||
| /// <summary> | ||
| /// Initializes a new instance of <see cref="CRSoffsetRotation"/>. | ||
| /// </summary> | ||
| /// <param name="spatialReference">SpatialReference to apply offsets and rotation to.</param> | ||
| public CRSoffsetRotation(ACG.SpatialReference spatialReference) | ||
| { | ||
| SpatialReference = spatialReference; | ||
| SpeckleUnitString = GetSpeckleUnit(spatialReference); | ||
| LatOffset = 0; | ||
| LonOffset = 0; | ||
| TrueNorthRadians = 0; | ||
| } | ||
|
|
||
| /// <summary> | ||
| /// Initializes a new instance of <see cref="CRSoffsetRotation"/>. | ||
| /// </summary> | ||
| /// <param name="spatialReference">SpatialReference to apply offsets and rotation to.</param> | ||
| /// <param name="trueNorthRadians">Angle to True North in radians.</param> | ||
| public CRSoffsetRotation(ACG.SpatialReference spatialReference, double trueNorthRadians) | ||
| { | ||
| SpatialReference = spatialReference; | ||
| SpeckleUnitString = GetSpeckleUnit(spatialReference); | ||
| LatOffset = 0; | ||
| LonOffset = 0; | ||
| TrueNorthRadians = trueNorthRadians; | ||
| } | ||
|
|
||
| /// <summary> | ||
| /// Initializes a new instance of <see cref="CRSoffsetRotation"/>. | ||
| /// </summary> | ||
| /// <param name="spatialReference">SpatialReference to apply offsets and rotation to.</param> | ||
| /// <param name="latOffset">Latitude (Y) ofsset in the current SpatialReference units.</param> | ||
| /// <param name="lonOffset">Longitude (X) ofsset in the current SpatialReference units.</param> | ||
| /// <param name="trueNorthRadians">Angle to True North in radians.</param> | ||
| public CRSoffsetRotation( | ||
| ACG.SpatialReference spatialReference, | ||
| double latOffset, | ||
| double lonOffset, | ||
| double trueNorthRadians | ||
| ) | ||
| { | ||
| SpatialReference = spatialReference; | ||
| SpeckleUnitString = GetSpeckleUnit(spatialReference); | ||
| LatOffset = latOffset; | ||
| LonOffset = lonOffset; | ||
| TrueNorthRadians = trueNorthRadians; | ||
| } | ||
| } |
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