/// <summary> /// Processes measure with unit. /// </summary> /// <param name="measureUnitHnd">The measure unit handle.</param> void ProcessIFCMeasureWithUnit(IFCAnyHandle measureUnitHnd) { double baseScale = 0.0; IFCData ifcData = measureUnitHnd.GetAttribute("ValueComponent"); if (!ifcData.HasValue) { throw new InvalidOperationException("#" + measureUnitHnd.StepId + ": Missing required attribute ValueComponent."); } if (ifcData.PrimitiveType == IFCDataPrimitiveType.Double) { baseScale = ifcData.AsDouble(); } else if (ifcData.PrimitiveType == IFCDataPrimitiveType.Integer) { baseScale = (double)ifcData.AsInteger(); } if (MathUtil.IsAlmostZero(baseScale)) { throw new InvalidOperationException("#" + measureUnitHnd.StepId + ": ValueComponent should not be almost zero."); } IFCAnyHandle unitHnd = IFCImportHandleUtil.GetRequiredInstanceAttribute(measureUnitHnd, "UnitComponent", true); IFCUnit unit = ProcessIFCUnit(unitHnd); CopyUnit(unit); ScaleFactor = unit.ScaleFactor * baseScale; }
/// <summary> /// Gets an arbitrary double attribute. /// </summary> /// <param name="hnd">The handle.</param> /// <param name="name">The attribute name.</param> /// <returns>The double.</returns> public static double?GetDoubleAttribute(IFCAnyHandle hnd, string name) { if (hnd == null) { throw new ArgumentNullException("hnd"); } if (!hnd.HasValue) { throw new ArgumentException("Invalid handle."); } IFCData ifcData = hnd.GetAttribute(name); if (ifcData.PrimitiveType == IFCDataPrimitiveType.Double) { return(ifcData.AsDouble()); } return(null); }
override protected void Process(IFCAnyHandle item) { base.Process(item); IFCAnyHandle surfaceColour = IFCImportHandleUtil.GetRequiredInstanceAttribute(item, "SurfaceColour", false); if (!IFCAnyHandleUtil.IsNullOrHasNoValue(surfaceColour)) { m_SurfaceColour = IFCColourRgb.ProcessIFCColourRgb(surfaceColour); } if (IFCAnyHandleUtil.IsSubTypeOf(item, IFCEntityType.IfcSurfaceStyleRendering)) { Transparency = IFCImportHandleUtil.GetOptionalNormalisedRatioAttribute(item, "Transparency", 0.0); IFCData diffuseColour = item.GetAttribute("DiffuseColour"); if (diffuseColour.PrimitiveType == IFCDataPrimitiveType.Instance) { m_DiffuseColour = IFCColourRgb.ProcessIFCColourRgb(diffuseColour.AsInstance()); } else if (diffuseColour.PrimitiveType == IFCDataPrimitiveType.Double) { m_DiffuseColourFactor = diffuseColour.AsDouble(); } IFCData transmissionColour = item.GetAttribute("TransmissionColour"); if (transmissionColour.PrimitiveType == IFCDataPrimitiveType.Instance) { m_TransmissionColour = IFCColourRgb.ProcessIFCColourRgb(transmissionColour.AsInstance()); } else if (transmissionColour.PrimitiveType == IFCDataPrimitiveType.Double) { m_TransmissionColourFactor = transmissionColour.AsDouble(); } IFCData diffuseTransmissionColour = item.GetAttribute("DiffuseTransmissionColour"); if (transmissionColour.PrimitiveType == IFCDataPrimitiveType.Instance) { m_DiffuseTransmissionColour = IFCColourRgb.ProcessIFCColourRgb(diffuseTransmissionColour.AsInstance()); } else if (transmissionColour.PrimitiveType == IFCDataPrimitiveType.Double) { m_DiffuseTransmissionColourFactor = diffuseTransmissionColour.AsDouble(); } IFCData reflectionColour = item.GetAttribute("ReflectionColour"); if (reflectionColour.PrimitiveType == IFCDataPrimitiveType.Instance) { m_ReflectionColour = IFCColourRgb.ProcessIFCColourRgb(reflectionColour.AsInstance()); } else if (reflectionColour.PrimitiveType == IFCDataPrimitiveType.Double) { m_ReflectionColourFactor = reflectionColour.AsDouble(); } IFCData specularColour = item.GetAttribute("SpecularColour"); if (specularColour.PrimitiveType == IFCDataPrimitiveType.Instance) { m_SpecularColour = IFCColourRgb.ProcessIFCColourRgb(specularColour.AsInstance()); } else if (specularColour.PrimitiveType == IFCDataPrimitiveType.Double) { m_SpecularColourFactor = specularColour.AsDouble(); } IFCData specularHighlight = item.GetAttribute("SpecularHighlight"); if (specularHighlight.PrimitiveType == IFCDataPrimitiveType.Double) { try { string simpleType = specularHighlight.GetSimpleType(); if (string.Compare(simpleType, "IfcSpecularExponent", true) == 0) { m_SpecularExponent = specularHighlight.AsDouble(); } else if (string.Compare(simpleType, "IfcSpecularRoughness", true) == 0) { m_SpecularRoughness = specularHighlight.AsDouble(); } else { Importer.TheLog.LogError(item.StepId, "Unknown type of specular highlight, ignoring.", false); } } catch { Importer.TheLog.LogError(item.StepId, "Unspecified type of specular highlight, ignoring.", false); } } else if (specularHighlight.HasValue) { Importer.TheLog.LogError(item.StepId, "Unknown type of specular highlight, ignoring.", false); } } }