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XSBase Class

Base class for crossSections. Holds processed data.

The most common case is that BottomLevel is zero, meaning that the ProcessedLevels are depth based. However, this is not a requirement.

Can hold equidistant as well as non-equidistant processed data, _equidistantLevels. In case of equidistant, the processed levels always start at zero, i.e., the BottomLevel is always zero (depth based).

Inheritance Hierarchy
SystemObject
  DHI.Mike1D.CrossSectionModuleXSBase
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Namespace:  DHI.Mike1D.CrossSectionModule
Assembly:  DHI.Mike1D.CrossSectionModule (in DHI.Mike1D.CrossSectionModule.dll) Version: 19.0.0.0 (11.1.1.1111)
Syntax
public abstract class XSBase : IExtensibleDataObject

The XSBase type exposes the following members.

Constructors
  NameDescription
Protected methodXSBase
Initializes a new instance of the XSBase class
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Properties
  NameDescription
Public propertyAutoProcess
Automatically calculate processed data if 1) They are missing 2) They are not up-to-date (ProcessedDataStatus is NotUpdated)
Public propertyBottomLevel
Lowest level/depth of the processed data. Note: ProcessedLevels must be defined
Public propertyCrossSectionType
Type of cross section
Public propertyEquidistantLevels
Flag to indicate whether equidistant levels are used.
Public propertyFlowResistance
Flow resistance. Contains information on flow resistance type (ManningM or Chezy, Z dependence etc) and flow resistence values.
Public propertyHasProcessedData
Public propertyHeight
Height of the cross section.
Public propertyInterpolated
Returns true if the CrossSection is interpolated from other cross sections
Public propertyIsOpen
Return true if cross section is open
Public propertyMaximumStorageWidth
Maximum storage width of the cross section
Public propertyModifiedFormulation
Gets the Resistance Formulation that matches the GetResistanceFactor(Int32, Double) value.

This is not necessarily the same as in FlowResistance. but can be different for several reasons: a) The raw and processed data differ, as for DarcyWeisbach. b) The resistance factors have been modified, and values used are those in ModifiedResistanceFactors.

Public propertyModifiedResistanceFactors
Modified resistance factors. These will be different than ProcessedResistanceFactors if one of the Multiply functions has been executed. This is matching the ModifiedFormulation
Public propertyMorphologicalDivision
When MorphologicalDivisionType is Level, specifies the level of morphological division

For ST modeling only.

Level is relative to raw data, and must not include any datum offset

Public propertyMorphologicalDivisionType
Specifies the type of morphological division that is applied.

For ST modeling only.

Public propertyNumberOfProcessedLevels
returns the number of processed levels (same as dimension of all processed data arrays). Returns 0 if processed data have not been calculated, yet.
Public propertyProcessedAdditionalSurfaceAreas
Processed additional storage area
Public propertyProcessedAreas
Processed geometric areas
Public propertyProcessedDataProtected
false: data are not protected and will be recomputed. true: processed data are protected, data has been manually updated and will not be recomputed.
Public propertyProcessedDataStatus
ProcessingStatus defines the status of the processed data of this cross section. Whenever the user updates raw data of the cross section, its state must be changed to NotUpdated.
Public propertyProcessedDerivatives
Flag specifying whether processed derivatives are stored as processed data arrays, or calculated directly. If true, processed data arrays for the derivatives are created (most accurate, smooth interpolation)
Public propertyProcessedFlowAreas
Processed flow areas
Public propertyProcessedLevels
Processed levels
Public propertyProcessedRadii
Processed radii
Public propertyProcessedRadiiDerivatives
Processed radii
Public propertyProcessedResistanceFactors
Processed resistance factors. Their type corresponds to the Resistance formulation specified in FlowResistance.
Public propertyProcessedStorageWidths
Processed storage widths
Public propertyProcessingLevelsSpecs
Access to all level-related specifications for pre-processing of cross section data
Public propertyRelativeConveyanceCutoff
If processed data has been modified to assure that conveyance never decrease with increasing water levels, this value indicates at which level (relative to height) that the change started.

Only relevant for closed cross sections. Default value is 1.

Public propertyTopLevel
Highest level/depth of the processed data.
Public propertyTopoID
The TopoID set that this cross section belongs to. TODO: See where for details?
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Methods
  NameDescription
Public methodAdjustProcessedLevels(Double)
Adjust the processed levels. Used to ensure that _processedLevels[0] has a certain value
Public methodStatic memberAdjustProcessedLevels(Double, Double)
Adjust the processed levels, subtract delta. Used to ensure that _processedLevels[0] has a certain value
Public methodAdjustProcessedLevelSpecs
Adjust the processed level specification.
Public methodBottomLevelFromCenter
Return the bottom level of the cross section at a distance dx from the center of the cross section. Throws an exception if dx is larger than half the cross section width.
Public methodCalculateProcessedData
Calculate processed data
Public methodCalculateProcessedDataIfNeeded
Calculate the processed levels, storage areas, radii, etc, ie, fill in all ProcessedXXX properties if they are not up to date. Also called by getters for these properties if needed, so usually, this method doesn't have to be called explicitly.
Public methodCheckProcessedData
Validates that this cross sections is set up correctly.
Public methodClearOriginalProcessedData
Clear any stored processed data arrays
Public methodClone
Creates a new object that is a copy of the current instance.
Protected methodConvertModifiedResistanceFactorsIfNecessary
Converts the modified resistance data to another formulation. Returns false if the conversion could be performed. Note: so far only few conversions are supported: - from Manningsn to ManningsM;
Public methodConvertRelativeResistanceMultiZones
Converts the ProcessedResistanceFactors according to a multizone set of absolute resistance values. Each input factor is applied between each level seperator, the first factor from -infinity to the first level, the second factor from the first level to the second level, and the last factor from the last level to infinity, i.e., the levelSeperators defines where one factor takes over from the previous. The factors array must be one longer than the levelSeperators array. The relative resistance factor is taken into account also. Results are stored in the ModifiedResistanceFactors and those are used in the calculation.
Public methodCreateAllProcessedArrays
Creates all processed data arrays with the given number of levels.
Public methodEquals
Determines whether the specified object is equal to the current object.
(Inherited from Object.)
Protected methodFinalize
Allows an object to try to free resources and perform other cleanup operations before it is reclaimed by garbage collection.
(Inherited from Object.)
Public methodGetActualMorphologicalDivision
Get actual morphological division or top of cross section if not defined.
Public methodGetAdditionalSurfaceArea
Additional storage area is a volume that the mass equation takes into account, but it does not influence the momentum equation. It could be a small pond next to the river that is filled/emptied as the water level in the river raises/falss.
Public methodGetArea
Return the cross sectional geometric area, for index and fraction into the processed data.
Public methodGetAreaByIntegratingWidths
Return the cross sectional geometric area, integrating the storage widths
Public methodGetCriticalDepth
Gets the Critical depth for a given discharge - [m3/s] The critical depth is the depth where the flow changes from supercritical to subcritical flow.
Public methodGetCriticalDischarge
Gets the Critical discharge for a given water level The critical discharge is the discharge where the flow changes from supercritical to subcritical flow.
Public methodGetFlowArea(Int32)
Return the cross sectional flow area, for index and fraction into the processed data. This can be the total areas or the effective flow area hence the area does not necessarily correspond to the amount of water in the system (volume)
Public methodGetFlowArea(Int32, Double)
Return the cross sectional flow area, for index and fraction into the processed data. This can be the total areas or the effective flow area hence the area does not necessarily correspond to the amount of water in the system (volume)
Public methodGetFlowAreaDerivative
Get storagewidth as dA/dh from neighboring values in processed XS areas at waterLevel.
Public methodGetHashCode
Serves as the default hash function.
(Inherited from Object.)
Public methodGetHydraulicRadius(Int32)
Returns the hydraulic radius for index and fraction into the processed data
Public methodGetHydraulicRadius(Int32, Double)
Returns the hydraulic radius for index and fraction into the processed data
Public methodGetHydraulicRadiusDerivative
Get the derivate of the hydraulic radius for index and fraction into the processed data.
Public methodGetLevelFromArea
For a given area, find the level.
Public methodGetMaximumValues
Set maximum area, maximum hydraulic radius and maximum storage width.
Public methodGetNaturalDepthOld Obsolete.
Get the natural depth at a given discharge and slope
Public methodGetResistanceFactor
Returns the resistance factor.
Public methodGetResistanceFactorsDerivative
Get the derivative of the resistance factor at the given water level
Public methodGetStorageWidth(Int32)
Returns the width from left bank to right bank for index and fraction into the processed data
Public methodGetStorageWidth(Int32, Double)
Returns the width from left bank to right bank for index and fraction into the processed data
Public methodGetType
Gets the Type of the current instance.
(Inherited from Object.)
Public methodGetVolumeFromAdditionalSurfaceArea
Return the integrated additional surface area from the bottom of the top slot to waterLevel
Public methodInheritProcessedDataFrom
Makes all processed data arrays point to the same arrays as in the other. (reference copy, not value copy)
Public methodInitialize
Calculate processed data if needed
Public methodLevel
Get the actual processed level at the given index. Works regardless of the _equidistantLevels flag, i.e., also when ProcessedLevels are not present. Index must be between 0 and NumberOfProcessedLevels-1 otherwise it will fail or give incorrect results
Protected methodMemberwiseClone
Creates a shallow copy of the current Object.
(Inherited from Object.)
Public methodPrepare
Ensures that the resistance fomulation is not relative. If the resistance fomulation is Mannings n it is changed to Mannings M and the data are changed accordingly if the resistance formulation is Darcy Weisbach formulation and data are changed to Chezy.
Public methodProcessedLevel
Get the raw processed level at the given index. Works regardless of the _equidistantLevels flag, i.e., also when ProcessedLevels are not present. Index must be between 0 and NumberOfProcessedLevels-1 otherwise it will fail or give incorrect results
Public methodRestoreModifiedResistanceFactors
if Multiply... or Convert... or similar was called earlier, reset the modified resistance factors to the original processed resistance factors
Public methodRestoreOriginalProcessedData
Restores any stored processed data arrays previously stored.
Public methodSaveOriginalProcessedData
Store the current processed data arrays (shallow copy). If a set of original processed data already exists, the original set is kept and not overwritten.

Updating the ProcessedLevels will still update the original processed data, unless new processed data has been provided, i.e. by using CreateAllProcessedArrays(Int32) or SetAllProcessedValues(Double, Double, Double, Double, Double, Double), due to the shallow copy.

The original processed data arrays are kept when setting new processed data, using e.g. SetAllProcessedValues(Double, Double, Double, Double, Double, Double)

Public methodSetAllProcessedValues
set all the processed data (references to the member array). All values are in SI.
Public methodToString
Returns a string that represents the current object.
(Inherited from Object.)
Public methodValidate
Validates that this cross sections is set up correctly.
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Fields
  NameDescription
Protected field_bAutoProcess
Allow CalculateProcessedDataIfNeeded. Set to false to disable
Protected field_bProcessedDataProtected
false: data are not protected and will be recomputed. true: processed data are protected, data has been manually updated and will not be recomputed.
Protected field_crossSectionType
Type of cross section.
Protected field_distanceBetweenLevels
The distance between levels if equidistant levels are ued. If equidistant levels are used, then getIndex and getFraction are faster.
Protected field_equidistantLevels
Flag to indicate whether equidistant levels are used. If equidistant levels are used, then getIndex and getFraction are faster. Each derived cross section must set this flag to true (during construction), if it does not store levels in the _processedLevels array.
Protected field_flowResistance
Flow resistance
Protected field_height
Protected field_isInitialized
Protected field_isPrepared
Flag defining whether Prepare(Diagnostics, HDParameterData, ILocation) has been called.
Protected field_modifiedFormulation
Flow resistance formulation
Protected field_modifiedResistanceFactors
Modified resistance factors. As default points to _processedResistanceFactors, but during simulation contains resistance factors that are supported by the engine, which may differ from the original values.
Protected field_modifiedResistanceFactorsDerivatives
Processed resistance factor derivatives for the modified resistance factors.
Protected field_numberOfProcessedLevels
The number of processed levels
Protected field_originalProcessedData
A copy of original processed data, in case they have been modified by the engine during the simulation.
Protected field_processedAdditionalSurfaceAreas
Processed additional storage areas
Protected field_processedAreas
Processed geometric areas
Protected field_processedCriticalDischarges
Table with processed critical discharges, created automatically when required.
Protected field_processedDataStatus
ProcessingStatus defines the status of the processed data of this cross section. Whenever the user updates raw data of the cross section, its state must be changed to NotUpdated.
Protected field_processedDerivatives
Flag specifying whether processed derivatives are stored as processed data arrays, or calculated directly. If true, processed data arrays for the derivatives are created (most accurate, smooth interpolation)
Protected field_processedFlowAreas
Processed flow ares
Protected field_processedLevels
Processed depths
Protected field_processedRadii
Processed radii
Protected field_processedRadiiDerivatives
Processed radius derivatives
Protected field_processedResistanceFactors
Processed resistance factors
Protected field_processedStorageWidths
Processed storage widths
Protected field_resistenceDistri
Resistance distribution
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Extension Methods
  NameDescription
Public Extension MethodGetConveyance
Get the conveyance at the specified processed level
(Defined by CrossSectionExtensions.)
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See Also
Inheritance Hierarchy