Colored diagram

Colored diagram of a function over a linear domain (set of 1D elments for example).

class postprocess.xcVtk.diagrams.colored_diagram.ColoredDiagram(scaleFactor, fUnitConv, rgMinMax=None)

Bases: postprocess.xcVtk.fields.vtk_lut_field.LUTField

Colored diagram of a function over a linear domain (set of 1D

elements for example).

Variables

  • scaleFactor – scale factor.

  • rgMinMax – range (vmin,vmax) with the maximum and minimum values of the field to be represented. All the values less than vmin are displayed in blue and those greater than vmax iqn red (defaults to None)

addDiagramToScene(recordDisplay, orientation=1, title=None)

Adds the diagram to de scene

Parameters

  • recordDisplay – DisplaySettings object.

  • orientation – orientation of the scalar bar (defaults to 1-horiz)

  • title – title for the scalar bar (defaults to None)

appendDataFromElementEnds(dirVectors, elements, diagramIndex, valueCouples, defFScale=0.0)

Append to the diagram the data from the element ends as follows:

___—-* value2

value1 *— |
|
|

1 +———-+ 2

Parameters

  • dirVectors – direction vector for each element diagram.

  • elements – element over which diagram is represented.

  • diagramIndex – index-counter for the values to insert.

  • value1 – value at the start node.

  • value2 – value at the end node.

  • defFScale – factor to apply to current displacement of nodes so that the display position of each node equals to the initial position plus its displacement multiplied by this factor. (Defaults to 0.0, i.e. display of initial/undeformed shape)

appendDataToDiagram(elements, diagramIndex, valueCouples, directions, defFScale=0.0)

Appends to the diagram the values being passed as parameter.

___—-* value2

value1 *— |
|
|

1 +———-+ 2

Parameters

  • elements – elements over which diagram is represented.

  • diagramIndex – index-counter for the values to insert.

  • valueCouples – (vStart, vEnd) couple of values at the start node and the end node of the element.

  • directions – direction of the diagram on each element.

  • defFScale – factor to apply to current displacement of nodes so that the display position of each node equals to the initial position plus its displacement multiplied by this factor. (Defaults to 0.0, i.e. display of initial/undeformed shape)

createChangedSignDiagramInterval(offset, org, valOrg, dest, valDest, dirVector)
Creates a diagram interval where the function to draw

changes its sign.

Parameters

  • offset – Offset for the index of the values to insert.

  • org – Back end of the 1D element.

  • dest – Front end of the 1D element.

  • valOrg – Value of the field at the back end.

  • valDest – Value of the field at the front end.

  • dirVector – direction vector of the diagram.

createConstantSignDiagramInterval(offset, org, valOrg, dest, valDest, dirVector)
Creates a diagram interval where the function to draw

doesn’t changes its sign.

Parameters

  • offset – Offset for the index of the values to insert.

  • org – Back end of the 1D element.

  • dest – Front end of the 1D element.

  • valOrg – Value of the field at the back end.

  • valDest – Value of the field at the front end.

  • dirVector – direction vector of the diagram.

createDiagramActor()
createDiagramDataStructure()
createDiagramInterval(offset, org, valOrg, dest, valDest, dirVector)

Crea un tramo de diagrama.

Parameters

  • offset – index-counter for the values to insert.

  • org – Extremo dorsal del elemento lineal.

  • dest – Extremo frontal del elemento lineal.

  • valOrg – Valor del campo escalar en el extremo dorsal.

  • valDest – Valor del campo escalar en el extremo frontal.

  • dirVector – direction vector of the diagram.

filterValueCouples(valueCouples)

Removes the values outside the rgMinMax interval if any.

___—-* value2

value1 *— |
|
|

1 +———-+ 2

Parameters

valueCouples – couple of values corresponding to each element.

getDiagramIntervalRoot(org, valOrg, dest, valDest)
Computes the position of the diagram root in the [org, dest]

interval.

Parameters

  • org – Extremo dorsal del elemento lineal.

  • dest – Extremo frontal del elemento lineal.

  • valOrg – Valor del campo escalar en el extremo dorsal.

  • valDest – Valor del campo escalar en el extremo frontal.

resetEstrucDatosDiagrama()

Diagram control variables

Display of diagrams (forces, moments, …) on linear elements

class postprocess.xcVtk.diagrams.control_var_diagram.ControlVarDiagram(scaleFactor, fUnitConv, sets, attributeName, component, defaultDirection='J', rgMinMax=None, lRefModSize=1.0)

Bases: postprocess.xcVtk.diagrams.colored_diagram.ColoredDiagram

Diagram of control var values (capacity factor values, internal forces values (N,My,Mz,T,Vy,Vz), crack width values,…

Variables

  • sets – list of element sets for which the diagram will be displayed.

  • attributeName – name of the element’s property that has the control var in it for example as in elem.getProp(attributeName).component.

  • component – property to be displayed (possible arguments: ‘CF’, ‘N’, ‘My’, ‘Mz’, ‘wk’,…)

  • defaultDirection – default direction of the diagram (J: element local j vector or K: element local K vector).

  • rgMinMax – range (vmin,vmax) with the maximum and minimum values of the field to be represented. All the values less than vmin are displayed in blue and those greater than vmax iqn red (defaults to None)

  • lRefModSize – reference length of the model (how big the model is). Used to autoscale the diagram.

addDiagram()

Add diagram to the scene.

autoScale()

Autoscale the diagram.

clear()

Clear the diagram data.

computeDiagramValues()

Return the values needed to create the diagram representation.

filterElements(propertyNames)

Return the elements that actually have the required properties.

Parameters

propertyNames – names of the properties that contain the values to represent in the diagram.

getElementComponentData(elem, propertyNames)

Return the data to be used to represent the diagram over the element

Parameters

  • elem – element to get the components for.

  • propertyNames – names of the properties that contain the values to represent in the diagram.

getMaxAbsComp()

Return the maximum absolute value of the component. It is used only for calculating auto-scale parameter, so we compare only values of the component in first node of the elements

getPropertyNames()

Return the names of the properties used to construct the diagram.

Linear load diagram

Display of loads over linear elements.

class postprocess.xcVtk.diagrams.linear_load_diagram.LinearLoadDiagram(setToDisp, scale, lRefModSize, fUnitConv, component, rgMinMax=None)

Bases: postprocess.xcVtk.diagrams.load_diagram.LoadDiagram

Draw a load over a set of linear elements (qx,qy,qz,…)

autoScale(preprocessor)

Autoscale the diagram.

Parameters

preprocessor – pre-processor of the finite element problem.

dumpElementalLoads(actLP, diagramIndex, defFScale=0.0)

Iterate over loaded elements dumping its loads into the graphic.

Parameters

  • actLP – list of active load patterns.

  • diagramIndex – index-counter for the values to insert.

  • defFScale – factor to apply to current displacement of nodes so that the display position of each node equals to the initial position plus its displacement multiplied by this factor. (Defaults to 0.0, i.e. display of initial/undeformed shape).

getMaxAbsComp(preprocessor)

Return the maximum absolute value of the component. It is used for calculating auto-scale parameter.

Parameters

preprocessor – pre-processor of the finite element problem.

sumElementalUniformLoads(actLP)

Iterate over active load patterns and cumulate on elements their elemental unifirm loads. Returns a dictionary that stores for each linear loaded element the sum of active loads on it

Parameters

actLP – list of active load patterns.

Node property diagram

Diagram to display a property defined at nodes over linear elements.

class postprocess.xcVtk.diagrams.node_property_diagram.NodePropertyDiagram(scaleFactor, lRefModSize, fUnitConv, sets, attributeName, defaultDirection='J', defaultValue=0.0, rgMinMax=None)

Bases: postprocess.xcVtk.diagrams.property_diagram.PropertyDiagram

Diagram to display a property defined at nodes over linear elements.

computeDiagramValues()

Return the values needed to create the diagram representation.

getValueForNode(node)

Get the value of the property in the given node.

Parameters

node – node to get the property from.

Element property diagram

Diagram display a property defined over linear elements.

class postprocess.xcVtk.diagrams.element_property_diagram.ElementPropertyDiagram(scaleFactor, lRefModSize, fUnitConv, sets, propertyName, rgMinMax=None)

Bases: postprocess.xcVtk.diagrams.property_diagram.PropertyDiagram

Diagram of element properties

computeDiagramValues(eSet)

Return the values needed to create the diagram representation.

envelopes = {'My+', 'My-', 'Mz+', 'Mz-', 'N+', 'N-', 'T+', 'T-', 'Vy+', 'Vy-', 'Vz+', 'Vz-'}

Internal force diagram

Display of diagrams (forces, moments, …) on linear elements

class postprocess.xcVtk.diagrams.vtk_internal_force_diagram.InternalForceDiagram(scale, fUnitConv, sets, component, defaultDirection='J', rgMinMax=None)

Bases: postprocess.xcVtk.diagrams.colored_diagram.ColoredDiagram

Diagram of internal forces (N,My,Mz,T,Vy,Vz)

Variables

  • sets – list of element sets for which the diagram will be displayed.

  • component – property to be displayed (possible arguments: ‘N’, ‘My’, ‘Mz’Vz,…)

  • defaultDirection – default direction of the diagram (J: element local j vector or K: element local K vector).

addDiagram()
getElementComponentData(elem, silent=False)

Returns the data to use to represent the diagram over the element

Parameters

  • elem – element to deal with.

  • component – component to represent:

  • silent – if true don’t complain about non-existent properties.