Daily update on 20250414-003153 by Nitload Youmu. Additional Message : Tech Issue: due to forbidden of multi-inheritance in C#, full ranslate fron EXPRESS to C# code is impossible, the EXPRESS interpreter in StgSharp will become a dialect

Add: A group of classes imported from lib https://github.com/ixmilia/step under MIT license, representing all STEP AP203 geometry objects Change: many change to classes from https://github.com/ixmilia/step to link data interfaces to those in StgSharp Freeze: implementation to StgSharp EXPRESS interpreter about collextion operation and element define grammer Signed-off-by: Nitload <YoumuLiu_NSI@whv0t.onmicrosoft.com>
2025-04-14 00:31:54 +08:00
parent 2692495dc8
commit 9457309c5a
69 changed files with 3318 additions and 117 deletions
@@ -0,0 +1,155 @@
+//-----------------------------------------------------------------------
+//-----------------------------------------------------------------------
+//     file="StepBSplineCurveWithKnots.cs"
+//     Project: StgSharp
+//     AuthorGroup: Nitload Space
+//     Copyright (c) Nitload Space. All rights reserved.
+//     
+//     Permission is hereby granted, free of charge, to any person 
+//     obtaining a copy of this software and associated documentation 
+//     files (the ¡°Software¡±), to deal in the Software without restriction, 
+//     including without limitation the rights to use, copy, modify, merge,
+//     publish, distribute, sublicense, and/or sell copies of the Software, 
+//     and to permit persons to whom the Software is furnished to do so, 
+//     subject to the following conditions:
+//     
+//     The above copyright notice and 
+//     this permission notice shall be included in all copies 
+//     or substantial portions of the Software.
+//     
+//     THE SOFTWARE IS PROVIDED ¡°AS IS¡±, 
+//     WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, 
+//     INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, 
+//     FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. 
+//     IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, 
+//     DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, 
+//     ARISING FROM, OUT OF OR IN CONNECTION WITH 
+//     THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+//     
+//-----------------------------------------------------------------------
+//-----------------------------------------------------------------------
+using StgSharp.Script;
+using StgSharp.Script.Express;
+
+using System;
+
+using System.Collections.Generic;
+using System.Linq;
+
+namespace StgSharp.Modeling.Items
+{
+    public enum StepKnotType
+    {
+
+        UniformKnots,
+        QuasiUniformKnots,
+        PiecewiseBezierKnots,
+        Unspecified
+
+    }
+
+;
+
+    public class StepBSplineCurveWithKnots : StepBSplineCurve
+    {
+
+        private const string PIECEWISE_BEZIER_KNOTS = "PIECEWISE_BEZIER_KNOTS";
+        private const string QUASI_UNIFORM_KNOTS = "QUASI_UNIFORM_KNOTS";
+
+        private const string UNIFORM_KNOTS = "UNIFORM_KNOTS";
+        private const string UNSPECIFIED = "UNSPECIFIED";
+
+        public StepBSplineCurveWithKnots(
+               string name,
+               IEnumerable<StepCartesianPoint> controlPoints )
+            : base( name, controlPoints ) { }
+
+        public StepBSplineCurveWithKnots( string name, params StepCartesianPoint[] controlPoints )
+            : base( name, controlPoints ) { }
+
+        public List<int> KnotMultiplicities { get; } = new List<int>();
+
+        public List<double> Knots { get; } = new List<double>();
+
+        public override StepItemType ItemType => StepItemType.BSplineCurveWithKnots;
+
+        public StepKnotType KnotSpec { get; set; } = StepKnotType.Unspecified;
+
+        internal static StepBSplineCurveWithKnots CreateFromSyntaxList(
+                                                  StepBinder binder,
+                                                  ExpNode syntaxList )
+        {
+            ExpNodeNextEnumerator enumerator = new ExpNodeNextEnumerator( syntaxList );
+            enumerator.AssertEnumeratorCount( 9 );
+            object controlPointsList = enumerator.Values[ 2 ].GetValueList();
+
+            StepBSplineCurveWithKnots spline = new StepBSplineCurveWithKnots(
+                string.Empty, new StepCartesianPoint[controlPointsList.Values.Count] );
+            spline.Name = enumerator.Values[ 0 ].CodeConvertTemplate;
+            spline.Degree = ( enumerator.Values[ 1 ] as ExpIntNode )!.Value;
+
+            for( int i = 0; i < controlPointsList.Values.Count; i++ )
+            {
+                int j = i; // capture to avoid rebinding
+                binder.BindValue(
+                    controlPointsList.Values[ j ],
+                    v => spline.ControlPointsList[ j ] = v.AsType<StepCartesianPoint>() );
+            }
+
+            spline.CurveForm = ParseCurveForm( enumerator.Values[ 3 ].GetEnumerationValue() );
+            spline.ClosedCurve = ( enumerator.Values[ 4 ] as ExpBoolNode )!.Value;
+            spline.SelfIntersect = ( enumerator.Values[ 5 ]as ExpBoolNode )!.Value;
+
+            object knotMultiplicitiesList = enumerator.Values[ 6 ].GetValueList();
+            spline.KnotMultiplicities.Clear();
+            for( int i = 0; i < knotMultiplicitiesList.Values.Count; i++ ) {
+                spline.KnotMultiplicities
+                      .Add( knotMultiplicitiesList.Values[ i ].GetIntegerValue() );
+            }
+
+            object knotslist = enumerator.Values[ 7 ].GetValueList();
+            spline.Knots.Clear();
+            for( int i = 0; i < knotslist.Values.Count; i++ ) {
+                spline.Knots.Add( knotslist.Values[ i ].GetRealVavlue() );
+            }
+
+            spline.KnotSpec = ParseKnotSpec( enumerator.Values[ 8 ].GetEnumerationValue() );
+
+            return spline;
+        }
+
+        private static string GetKnotSpec( StepKnotType spec )
+        {
+            switch( spec )
+            {
+                case StepKnotType.UniformKnots:
+                    return UNIFORM_KNOTS;
+                case StepKnotType.QuasiUniformKnots:
+                    return QUASI_UNIFORM_KNOTS;
+                case StepKnotType.PiecewiseBezierKnots:
+                    return PIECEWISE_BEZIER_KNOTS;
+                case StepKnotType.Unspecified:
+                    return UNSPECIFIED;
+            }
+
+            throw new NotImplementedException();
+        }
+
+        private static StepKnotType ParseKnotSpec( string enumerationValue )
+        {
+            switch( enumerationValue.ToUpperInvariant() )
+            {
+                case UNIFORM_KNOTS:
+                    return StepKnotType.UniformKnots;
+                case QUASI_UNIFORM_KNOTS:
+                    return StepKnotType.QuasiUniformKnots;
+                case PIECEWISE_BEZIER_KNOTS:
+                    return StepKnotType.PiecewiseBezierKnots;
+                default:
+                    return StepKnotType.Unspecified;
+            }
+        }
+
+    }
+}
+