Пример #1
0
        /// <summary>
        /// Create an IFCElementarySurface object from a handle of type IfcElementarySurface.
        /// </summary>
        /// <param name="ifcElementarySurface">The IFC handle.</param>
        /// <returns>The IFCElementarySurface object.</returns>
        public static IFCElementarySurface ProcessIFCElementarySurface(IFCAnyHandle ifcElementarySurface)
        {
            if (IFCAnyHandleUtil.IsNullOrHasNoValue(ifcElementarySurface))
            {
                Importer.TheLog.LogNullError(IFCEntityType.IfcElementarySurface);
                return(null);
            }

            IFCEntity elementarySurface;

            if (IFCImportFile.TheFile.EntityMap.TryGetValue(ifcElementarySurface.StepId, out elementarySurface))
            {
                return(elementarySurface as IFCElementarySurface);
            }

            if (IFCAnyHandleUtil.IsValidSubTypeOf(ifcElementarySurface, IFCEntityType.IfcPlane))
            {
                return(IFCPlane.ProcessIFCPlane(ifcElementarySurface));
            }
            if (IFCAnyHandleUtil.IsValidSubTypeOf(ifcElementarySurface, IFCEntityType.IfcCylindricalSurface))
            {
                return(IFCCylindricalSurface.ProcessIfcCylindricalSurface(ifcElementarySurface));
            }

            Importer.TheLog.LogUnhandledSubTypeError(ifcElementarySurface, IFCEntityType.IfcElementarySurface, true);
            return(null);
        }
Пример #2
0
        /// <summary>
        /// In case of a Boolean operation failure, provide a recommended direction to shift the geometry in for a second attempt.
        /// </summary>
        /// <param name="lcs">The local transform for this entity.</param>
        /// <returns>An XYZ representing a unit direction vector, or null if no direction is suggested.</returns>
        /// <remarks>If the 2nd attempt fails, a third attempt will be done with a shift in the opposite direction.</remarks>
        public XYZ GetSuggestedShiftDirection(Transform lcs)
        {
            IFCPlane ifcPlane          = BaseSurface as IFCPlane;
            Plane    plane             = (ifcPlane != null) ? ifcPlane.Plane : null;
            XYZ      untransformedNorm = (plane != null) ? plane.Normal : null;

            return((lcs == null) ? untransformedNorm : lcs.OfVector(untransformedNorm));
        }
Пример #3
0
        /// <summary>
        /// Create an IFCPlane object from a handle of type ifcPlane.
        /// </summary>
        /// <param name="ifcPlane">The IFC handle.</param>
        /// <returns>The IFCPlane object.</returns>
        public static IFCPlane ProcessIFCPlane(IFCAnyHandle ifcPlane)
        {
            if (IFCAnyHandleUtil.IsNullOrHasNoValue(ifcPlane))
            {
                Importer.TheLog.LogNullError(IFCEntityType.IfcPlane);
                return null;
            }

            IFCEntity plane;
            if (!IFCImportFile.TheFile.EntityMap.TryGetValue(ifcPlane.StepId, out plane))
                plane = new IFCPlane(ifcPlane);

            return plane as IFCPlane;
        }
Пример #4
0
        /// <summary>
        /// Create an IFCPlane object from a handle of type ifcPlane.
        /// </summary>
        /// <param name="ifcPlane">The IFC handle.</param>
        /// <returns>The IFCPlane object.</returns>
        public static IFCPlane ProcessIFCPlane(IFCAnyHandle ifcPlane)
        {
            if (IFCAnyHandleUtil.IsNullOrHasNoValue(ifcPlane))
            {
                Importer.TheLog.LogNullError(IFCEntityType.IfcPlane);
                return(null);
            }

            IFCEntity plane;

            if (!IFCImportFile.TheFile.EntityMap.TryGetValue(ifcPlane.StepId, out plane))
            {
                plane = new IFCPlane(ifcPlane);
            }

            return(plane as IFCPlane);
        }
Пример #5
0
        /// <summary>
        /// Create geometry for an IfcHalfSpaceSolid.
        /// </summary>
        /// <param name="shapeEditScope">The shape edit scope.</param>
        /// <param name="lcs">Local coordinate system for the geometry, without scale.</param>
        /// <param name="scaledLcs">Local coordinate system for the geometry, including scale, potentially non-uniform.</param>
        /// <param name="guid">The guid of an element for which represntation is being created.</param>
        /// <returns>A list containing one geometry for the IfcHalfSpaceSolid.</returns>
        protected virtual IList <GeometryObject> CreateGeometryInternal(
            IFCImportShapeEditScope shapeEditScope, Transform unscaledLcs, Transform scaledLcs, string guid)
        {
            IFCPlane ifcPlane = BaseSurface as IFCPlane;
            Plane    plane    = ifcPlane.Plane;
            XYZ      origin   = plane.Origin;
            XYZ      xVec     = plane.XVec;
            XYZ      yVec     = plane.YVec;

            // Set some huge boundaries for now.
            const double largeCoordinateValue = 100000;

            XYZ[] corners = new XYZ[4] {
                unscaledLcs.OfPoint((xVec * -largeCoordinateValue) + (yVec * -largeCoordinateValue) + origin),
                unscaledLcs.OfPoint((xVec * largeCoordinateValue) + (yVec * -largeCoordinateValue) + origin),
                unscaledLcs.OfPoint((xVec * largeCoordinateValue) + (yVec * largeCoordinateValue) + origin),
                unscaledLcs.OfPoint((xVec * -largeCoordinateValue) + (yVec * largeCoordinateValue) + origin)
            };

            IList <CurveLoop> loops = new List <CurveLoop>();
            CurveLoop         loop  = new CurveLoop();

            for (int ii = 0; ii < 4; ii++)
            {
                if (AgreementFlag)
                {
                    loop.Append(Line.CreateBound(corners[(5 - ii) % 4], corners[(4 - ii) % 4]));
                }
                else
                {
                    loop.Append(Line.CreateBound(corners[ii], corners[(ii + 1) % 4]));
                }
            }
            loops.Add(loop);

            XYZ          normal       = unscaledLcs.OfVector(AgreementFlag ? -plane.Normal : plane.Normal);
            SolidOptions solidOptions = new SolidOptions(GetMaterialElementId(shapeEditScope), shapeEditScope.GraphicsStyleId);
            Solid        baseSolid    = GeometryCreationUtilities.CreateExtrusionGeometry(loops, normal, largeCoordinateValue, solidOptions);

            if (BaseBoundingCurve != null)
            {
                CurveLoop polygonalBoundary = BaseBoundingCurve.CurveLoop;

                Transform unscaledTotalTransform = unscaledLcs.Multiply(BaseBoundingCurveTransform);
                Transform scaledTotalTransform   = scaledLcs.Multiply(BaseBoundingCurveTransform);

                // Make sure this bounding polygon extends below base of half-space soild.
                Transform moveBaseTransform = Transform.Identity;
                moveBaseTransform.Origin = new XYZ(0, 0, -largeCoordinateValue);

                unscaledTotalTransform = unscaledTotalTransform.Multiply(moveBaseTransform);
                scaledTotalTransform   = scaledTotalTransform.Multiply(moveBaseTransform);

                CurveLoop         transformedPolygonalBoundary = IFCGeometryUtil.CreateTransformed(polygonalBoundary, Id, unscaledTotalTransform, scaledTotalTransform);
                IList <CurveLoop> boundingLoops = new List <CurveLoop>();
                boundingLoops.Add(transformedPolygonalBoundary);

                Solid boundingSolid = GeometryCreationUtilities.CreateExtrusionGeometry(boundingLoops, unscaledTotalTransform.BasisZ, 2.0 * largeCoordinateValue,
                                                                                        solidOptions);
                baseSolid = IFCGeometryUtil.ExecuteSafeBooleanOperation(Id, BaseBoundingCurve.Id, baseSolid, boundingSolid, BooleanOperationsType.Intersect, null);
            }

            IList <GeometryObject> returnList = new List <GeometryObject>();

            returnList.Add(baseSolid);
            return(returnList);
        }