Files
ThirdParty-6/ParaView-5.0.1/ParaViewCore/ServerManager/Rendering/vtkSMPVRepresentationProxy.cxx

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26 KiB
C++

/*=========================================================================
Program: ParaView
Module: vtkSMPVRepresentationProxy.cxx
Copyright (c) Kitware, Inc.
All rights reserved.
See Copyright.txt or http://www.paraview.org/HTML/Copyright.html for details.
This software is distributed WITHOUT ANY WARRANTY; without even
the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
PURPOSE. See the above copyright notice for more information.
=========================================================================*/
#include "vtkSMPVRepresentationProxy.h"
#include "vtkCommand.h"
#include "vtkDataObject.h"
#include "vtkDoubleArray.h"
#include "vtkNew.h"
#include "vtkObjectFactory.h"
#include "vtkPVArrayInformation.h"
#include "vtkPVDataInformation.h"
#include "vtkPVProminentValuesInformation.h"
#include "vtkPVTemporalDataInformation.h"
#include "vtkPVXMLElement.h"
#include "vtkSMArrayListDomain.h"
#include "vtkSMCoreUtilities.h"
#include "vtkSMOutputPort.h"
#include "vtkSMProperty.h"
#include "vtkSMPropertyHelper.h"
#include "vtkSMRenderViewProxy.h"
#include "vtkSMScalarBarWidgetRepresentationProxy.h"
#include "vtkSMSessionProxyManager.h"
#include "vtkSMStringVectorProperty.h"
#include "vtkSMTrace.h"
#include "vtkSMTransferFunctionManager.h"
#include "vtkSMTransferFunctionProxy.h"
#include "vtkStringList.h"
#include <cmath>
#include <set>
#include <string>
#include <sstream>
class vtkSMPVRepresentationProxy::vtkStringSet :
public std::set<std::string> {};
vtkStandardNewMacro(vtkSMPVRepresentationProxy);
//----------------------------------------------------------------------------
vtkSMPVRepresentationProxy::vtkSMPVRepresentationProxy()
{
this->SetSIClassName("vtkSIPVRepresentationProxy");
this->RepresentationSubProxies = new vtkStringSet();
this->InReadXMLAttributes = false;
}
//----------------------------------------------------------------------------
vtkSMPVRepresentationProxy::~vtkSMPVRepresentationProxy()
{
delete this->RepresentationSubProxies;
}
//----------------------------------------------------------------------------
void vtkSMPVRepresentationProxy::CreateVTKObjects()
{
if (this->ObjectsCreated)
{
return;
}
this->Superclass::CreateVTKObjects();
if (!this->ObjectsCreated)
{
return;
}
// Ensure that we update the RepresentationTypesInfo property and the domain
// for "Representations" property before CreateVTKObjects() is finished. This
// ensure that all representations have valid Representations domain.
this->UpdatePropertyInformation();
// Whenever the "Representation" property is modified, we ensure that the
// this->InvalidateDataInformation() is called.
this->AddObserver(vtkCommand::UpdatePropertyEvent,
this, &vtkSMPVRepresentationProxy::OnPropertyUpdated);
}
//----------------------------------------------------------------------------
void vtkSMPVRepresentationProxy::OnPropertyUpdated(vtkObject*,
unsigned long, void* calldata)
{
const char* pname = reinterpret_cast<const char*>(calldata);
if (pname && strcmp(pname, "Representation") == 0)
{
this->InvalidateDataInformation();
}
}
//----------------------------------------------------------------------------
void vtkSMPVRepresentationProxy::SetPropertyModifiedFlag(const char* name, int flag)
{
if (!this->InReadXMLAttributes && name && strcmp(name, "Input") == 0)
{
// Whenever the input for the representation is set, we need to setup the
// the input for the internal selection representation that shows the
// extracted-selection. This is done at the proxy level so that whenever the
// selection is changed in the application, the SelectionRepresentation is
// 'MarkedModified' correctly, so that it updates itself cleanly.
vtkSMProxy* selectionRepr = this->GetSubProxy("SelectionRepresentation");
vtkSMPropertyHelper helper(this, name);
for (unsigned int cc=0; cc < helper.GetNumberOfElements(); cc++)
{
vtkSMSourceProxy* input = vtkSMSourceProxy::SafeDownCast(
helper.GetAsProxy(cc));
if (input && selectionRepr)
{
input->CreateSelectionProxies();
vtkSMSourceProxy* esProxy = input->GetSelectionOutput(
helper.GetOutputPort(cc));
if (!esProxy)
{
vtkErrorMacro("Input proxy does not support selection extraction.");
}
else
{
vtkSMPropertyHelper(selectionRepr, "Input").Set(esProxy);
selectionRepr->UpdateVTKObjects();
}
}
}
}
this->Superclass::SetPropertyModifiedFlag(name, flag);
}
//----------------------------------------------------------------------------
int vtkSMPVRepresentationProxy::ReadXMLAttributes(
vtkSMSessionProxyManager* pm, vtkPVXMLElement* element)
{
this->InReadXMLAttributes = true;
for (unsigned int cc=0; cc < element->GetNumberOfNestedElements(); ++cc)
{
vtkPVXMLElement* child = element->GetNestedElement(cc);
if ( child->GetName() &&
strcmp(child->GetName(), "RepresentationType") == 0 &&
child->GetAttribute("subproxy") != NULL )
{
this->RepresentationSubProxies->insert(child->GetAttribute("subproxy"));
}
}
int retVal = this->Superclass::ReadXMLAttributes(pm, element);
this->InReadXMLAttributes = false;
// Setup property links for sub-proxies. This ensures that whenever the
// this->GetProperty("Input") changes (either checked or un-checked values),
// all the sub-proxy's "Input" is also changed to the same value. This ensures
// that the domains are updated correctly.
vtkSMProperty* inputProperty = this->GetProperty("Input");
if (inputProperty)
{
for (vtkStringSet::iterator iter = this->RepresentationSubProxies->begin();
iter != this->RepresentationSubProxies->end(); ++iter)
{
vtkSMProxy* subProxy = this->GetSubProxy((*iter).c_str());
vtkSMProperty* subProperty = subProxy? subProxy->GetProperty("Input") : NULL;
if (subProperty)
{
this->LinkProperty(inputProperty, subProperty);
}
}
}
return retVal;
}
//----------------------------------------------------------------------------
bool vtkSMPVRepresentationProxy::GetUsingScalarColoring()
{
if (this->GetProperty("ColorArrayName"))
{
vtkSMPropertyHelper helper(this->GetProperty("ColorArrayName"));
return (helper.GetNumberOfElements() == 5 &&
helper.GetAsString(4) != NULL &&
strcmp(helper.GetAsString(4), "") != 0);
}
else
{
vtkWarningMacro("Missing 'ColorArrayName' property.");
}
return false;
}
//----------------------------------------------------------------------------
bool vtkSMPVRepresentationProxy::RescaleTransferFunctionToDataRange(
bool extend)
{
if (!this->GetUsingScalarColoring())
{
// we are not using scalar coloring, nothing to do.
return false;
}
SM_SCOPED_TRACE(CallMethod)
.arg(this)
.arg("RescaleTransferFunctionToDataRange")
.arg(extend)
.arg("comment",
(extend?
"rescale color and/or opacity maps used to include current data range" :
"rescale color and/or opacity maps used to exactly fit the current data range"));
return this->RescaleTransferFunctionToDataRange(
this->GetArrayInformationForColorArray(), extend);
}
//----------------------------------------------------------------------------
bool vtkSMPVRepresentationProxy::RescaleTransferFunctionToDataRange(
const char* arrayname, int attribute_type, bool extend)
{
vtkSMPropertyHelper inputHelper(this->GetProperty("Input"));
vtkSMSourceProxy* inputProxy =
vtkSMSourceProxy::SafeDownCast(inputHelper.GetAsProxy());
int port = inputHelper.GetOutputPort();
if (!inputProxy)
{
// no input.
vtkWarningMacro("No input present. Cannot determine data ranges.");
return false;
}
vtkPVDataInformation* dataInfo = inputProxy->GetDataInformation(port);
vtkPVArrayInformation* info = dataInfo->GetArrayInformation(
arrayname, attribute_type);
if (!info)
{
vtkPVDataInformation* representedDataInfo =
this->GetRepresentedDataInformation();
info = representedDataInfo->GetArrayInformation(arrayname, attribute_type);
}
return this->RescaleTransferFunctionToDataRange(info, extend);
}
//----------------------------------------------------------------------------
bool vtkSMPVRepresentationProxy::RescaleTransferFunctionToDataRangeOverTime()
{
if (!this->GetUsingScalarColoring())
{
// we are not using scalar coloring, nothing to do.
return false;
}
vtkSMPropertyHelper helper(this->GetProperty("ColorArrayName"));
return this->RescaleTransferFunctionToDataRangeOverTime(
helper.GetAsString(4), helper.GetAsInt(3));
}
//----------------------------------------------------------------------------
bool vtkSMPVRepresentationProxy::RescaleTransferFunctionToDataRangeOverTime(
const char* arrayname, int attribute_type)
{
vtkSMPropertyHelper inputHelper(this->GetProperty("Input"));
vtkSMSourceProxy* inputProxy =
vtkSMSourceProxy::SafeDownCast(inputHelper.GetAsProxy());
int port = inputHelper.GetOutputPort();
if (!inputProxy || !inputProxy->GetOutputPort(port))
{
// no input.
vtkWarningMacro("No input present. Cannot determine data ranges.");
return false;
}
vtkPVTemporalDataInformation* dataInfo =
inputProxy->GetOutputPort(port)->GetTemporalDataInformation();
vtkPVArrayInformation* info = dataInfo->GetArrayInformation(
arrayname, attribute_type);
return info? this->RescaleTransferFunctionToDataRange(info) : false;
}
//----------------------------------------------------------------------------
bool vtkSMPVRepresentationProxy::RescaleTransferFunctionToDataRange(
vtkPVArrayInformation* info, bool extend)
{
if (!info)
{
vtkWarningMacro("Could not determine array range.");
return false;
}
vtkSMProperty* lutProperty = this->GetProperty("LookupTable");
vtkSMProperty* sofProperty = this->GetProperty("ScalarOpacityFunction");
if (!lutProperty && !sofProperty)
{
vtkWarningMacro("No 'LookupTable' and 'ScalarOpacityFunction' found.");
return false;
}
vtkSMProxy* lut = vtkSMPropertyHelper(lutProperty).GetAsProxy();
vtkSMProxy* sof = vtkSMPropertyHelper(sofProperty).GetAsProxy();
// We need to determine the component number to use from the lut.
int component = -1;
if (lut && vtkSMPropertyHelper(lut, "VectorMode").GetAsInt() != 0)
{
component = vtkSMPropertyHelper(lut, "VectorComponent").GetAsInt();
}
if (component < info->GetNumberOfComponents())
{
int indexedLookup = vtkSMPropertyHelper(lut, "IndexedLookup").GetAsInt();
if (indexedLookup)
{
vtkPVProminentValuesInformation* prominentValues =
vtkSMPVRepresentationProxy::GetProminentValuesInformationForColorArray(this);
vtkSmartPointer<vtkStringList> activeAnnotations = vtkSmartPointer<vtkStringList>::New();
vtkSmartPointer<vtkDoubleArray> activeIndexedColors = vtkSmartPointer<vtkDoubleArray>::New();
vtkSmartPointer<vtkAbstractArray> uniqueValues;
uniqueValues.TakeReference(
prominentValues->GetProminentComponentValues(component));
vtkSMStringVectorProperty* allAnnotations = vtkSMStringVectorProperty::SafeDownCast(lut->GetProperty("Annotations"));
vtkSMStringVectorProperty* activeAnnotatedValuesProperty =
vtkSMStringVectorProperty::SafeDownCast(lut->GetProperty("ActiveAnnotatedValues"));
if (uniqueValues && allAnnotations && activeAnnotatedValuesProperty)
{
vtkSmartPointer<vtkStringList> activeAnnotatedValues =
vtkSmartPointer<vtkStringList>::New();
if (extend)
{
activeAnnotatedValuesProperty->GetElements(activeAnnotatedValues);
}
for (int idx = 0; idx < uniqueValues->GetNumberOfTuples(); ++idx)
{
// Look up index of color corresponding to the annotation
for (unsigned int j = 0; j < allAnnotations->GetNumberOfElements()/2; ++j)
{
vtkVariant annotatedValue(allAnnotations->GetElement(2*j + 0));
if (annotatedValue == uniqueValues->GetVariantValue(idx))
{
activeAnnotatedValues->AddString(allAnnotations->GetElement(2*j + 0));
break;
}
}
}
activeAnnotatedValuesProperty->SetElements(activeAnnotatedValues);
lut->UpdateVTKObjects();
}
}
else
{
double range[2];
info->GetComponentRange(component, range);
if (range[1] >= range[0])
{
// the range must be large enough, compared to values order of magnitude
// If data range is too small then we tweak it a bit so scalar mapping
// produces valid/reproducible results.
vtkSMCoreUtilities::AdjustRange(range);
if (lut)
{
vtkSMTransferFunctionProxy::RescaleTransferFunction(lut, range, extend);
vtkSMProxy* sof_lut = vtkSMPropertyHelper(
lut, "ScalarOpacityFunction", true).GetAsProxy();
if (sof_lut && sof != sof_lut)
{
vtkSMTransferFunctionProxy::RescaleTransferFunction(
sof_lut, range, extend);
}
}
if (sof)
{
vtkSMTransferFunctionProxy::RescaleTransferFunction(sof, range, extend);
}
return (lut || sof);
}
}
}
return false;
}
//----------------------------------------------------------------------------
bool vtkSMPVRepresentationProxy::RescaleTransferFunctionToVisibleRange(
vtkSMProxy* view)
{
if (!this->GetUsingScalarColoring())
{
// we are not using scalar coloring, nothing to do.
return false;
}
vtkSMPropertyHelper helper(this->GetProperty("ColorArrayName"));
return this->RescaleTransferFunctionToVisibleRange(view,
helper.GetAsString(4), helper.GetAsInt(3));
}
//----------------------------------------------------------------------------
bool vtkSMPVRepresentationProxy::RescaleTransferFunctionToVisibleRange(
vtkSMProxy* view, const char* arrayname, int attribute_type)
{
vtkSMRenderViewProxy* rview = vtkSMRenderViewProxy::SafeDownCast(view);
if (!rview || !arrayname || arrayname[0] == 0)
{
return false;
}
vtkSMPropertyHelper inputHelper(this->GetProperty("Input"));
vtkSMSourceProxy* inputProxy =
vtkSMSourceProxy::SafeDownCast(inputHelper.GetAsProxy());
int port = inputHelper.GetOutputPort();
if (!inputProxy || !inputProxy->GetOutputPort(port))
{
// no input.
vtkWarningMacro("No input present. Cannot determine data ranges.");
return false;
}
vtkPVDataInformation* dataInfo =
inputProxy->GetOutputPort(port)->GetDataInformation();
vtkPVArrayInformation* info = dataInfo->GetArrayInformation(arrayname, attribute_type);
if (!info)
{
return false;
}
vtkSMProperty* lutProperty = this->GetProperty("LookupTable");
vtkSMProperty* sofProperty = this->GetProperty("ScalarOpacityFunction");
if (!lutProperty && !sofProperty)
{
// No LookupTable and ScalarOpacityFunction found.
return false;
}
vtkSMProxy* lut = lutProperty? vtkSMPropertyHelper(lutProperty).GetAsProxy() : NULL;
vtkSMProxy* sof = sofProperty? vtkSMPropertyHelper(sofProperty).GetAsProxy() : NULL;
// We need to determine the component number to use from the lut.
int component = -1;
if (lut && vtkSMPropertyHelper(lut, "VectorMode").GetAsInt() != 0)
{
component = vtkSMPropertyHelper(lut, "VectorComponent").GetAsInt();
}
if (component >= info->GetNumberOfComponents())
{
// somethign amiss, the component request is not present in the dataset.
// give up.
return false;
}
double range[2];
if (!rview->ComputeVisibleScalarRange(attribute_type, arrayname, component, range))
{
return false;
}
if (lut)
{
vtkSMTransferFunctionProxy::RescaleTransferFunction(lut, range, false);
vtkSMProxy* sof_lut = vtkSMPropertyHelper(lut, "ScalarOpacityFunction", true).GetAsProxy();
if (sof_lut && sof != sof_lut)
{
vtkSMTransferFunctionProxy::RescaleTransferFunction(
sof_lut, range, false);
}
}
if (sof)
{
vtkSMTransferFunctionProxy::RescaleTransferFunction(sof, range, false);
}
return true;
}
//----------------------------------------------------------------------------
bool vtkSMPVRepresentationProxy::SetScalarColoring(const char* arrayname, int attribute_type)
{
if (!this->GetUsingScalarColoring() && (arrayname==NULL ||arrayname[0]==0))
{
// scalar coloring already off. Nothing to do.
return true;
}
vtkSMProperty* colorArray = this->GetProperty("ColorArrayName");
if (!colorArray)
{
vtkWarningMacro("No 'ColorArrayName' property found.");
return false;
}
SM_SCOPED_TRACE(SetScalarColoring)
.arg("display", this)
.arg("arrayname", arrayname)
.arg("attribute_type", attribute_type);
vtkSMPropertyHelper colorArrayHelper(colorArray);
colorArrayHelper.SetInputArrayToProcess(attribute_type, arrayname);
if (arrayname == NULL || arrayname[0] == '\0')
{
vtkSMPropertyHelper(this, "LookupTable", true).RemoveAllValues();
vtkSMPropertyHelper(this, "ScalarOpacityFunction", true).RemoveAllValues();
this->UpdateVTKObjects();
return true;
}
// Now, setup transfer functions.
vtkNew<vtkSMTransferFunctionManager> mgr;
if (vtkSMProperty* lutProperty = this->GetProperty("LookupTable"))
{
vtkSMProxy* lutProxy =
mgr->GetColorTransferFunction(arrayname, this->GetSessionProxyManager());
vtkSMPropertyHelper(lutProperty).Set(lutProxy);
// Get the array information for the color array to determine transfer function properties
vtkPVArrayInformation* colorArrayInfo = this->GetArrayInformationForColorArray();
if (colorArrayInfo)
{
if (colorArrayInfo->GetDataType() == VTK_STRING)
{
vtkSMPropertyHelper(lutProxy, "IndexedLookup", true).Set(1);
lutProxy->UpdateVTKObjects();
}
}
}
if (vtkSMProperty* sofProperty = this->GetProperty("ScalarOpacityFunction"))
{
vtkSMProxy* sofProxy =
mgr->GetOpacityTransferFunction(arrayname, this->GetSessionProxyManager());
vtkSMPropertyHelper(sofProperty).Set(sofProxy);
}
this->UpdateVTKObjects();
return true;
}
//----------------------------------------------------------------------------
bool vtkSMPVRepresentationProxy::SetScalarBarVisibility(vtkSMProxy* view, bool visible)
{
if (!view)
{
return false;
}
vtkSMProperty* lutProperty = this->GetProperty("LookupTable");
if (!lutProperty)
{
vtkWarningMacro("Missing 'LookupTable' property.");
return false;
}
vtkSMPropertyHelper lutPropertyHelper(lutProperty);
if (lutPropertyHelper.GetNumberOfElements() == 0 ||
lutPropertyHelper.GetAsProxy(0) == NULL)
{
vtkWarningMacro("Failed to determine the LookupTable being used.");
return false;
}
SM_SCOPED_TRACE(CallMethod)
.arg(this)
.arg("SetScalarBarVisibility")
.arg(view)
.arg(visible)
.arg("comment", visible?
"show color bar/color legend" :
"hide color bar/color legend");
vtkSMProxy* lutProxy = lutPropertyHelper.GetAsProxy(0);
// if hiding the Scalar Bar, just look if there's a LUT and then hide the
// corresponding scalar bar. We won't worry too much about whether scalar
// coloring is currently enabled for this.
if (!visible)
{
if (vtkSMProxy* sbProxy = vtkSMTransferFunctionProxy::FindScalarBarRepresentation(
lutPropertyHelper.GetAsProxy(), view))
{
vtkSMPropertyHelper(sbProxy, "Visibility").Set(0);
vtkSMPropertyHelper(sbProxy, "Enabled").Set(0);
sbProxy->UpdateVTKObjects();
}
return true;
}
if (!this->GetUsingScalarColoring())
{
return false;
}
vtkNew<vtkSMTransferFunctionManager> mgr;
vtkSMProxy* sbProxy = mgr->GetScalarBarRepresentation(lutProxy, view);
if (!sbProxy)
{
vtkWarningMacro("Failed to locate/create ScalarBar representation.");
return false;
}
vtkSMPropertyHelper(sbProxy, "Enabled").Set(1);
vtkSMPropertyHelper(sbProxy, "Visibility").Set(1);
vtkSMProperty* titleProp = sbProxy->GetProperty("Title");
vtkSMProperty* compProp = sbProxy->GetProperty("ComponentTitle");
if (titleProp && compProp &&
titleProp->IsValueDefault() &&
compProp->IsValueDefault())
{
vtkSMPropertyHelper colorArrayHelper(this, "ColorArrayName");
vtkSMPropertyHelper(titleProp).Set(
colorArrayHelper.GetInputArrayNameToProcess());
// now, determine a name for it if possible.
vtkPVArrayInformation* arrayInfo = this->GetArrayInformationForColorArray();
vtkSMScalarBarWidgetRepresentationProxy::UpdateComponentTitle(sbProxy, arrayInfo);
}
vtkSMScalarBarWidgetRepresentationProxy::PlaceInView(sbProxy, view);
sbProxy->UpdateVTKObjects();
return true;
}
//----------------------------------------------------------------------------
bool vtkSMPVRepresentationProxy::HideScalarBarIfNotNeeded(vtkSMProxy* view)
{
vtkSMProperty* lutProperty = this->GetProperty("LookupTable");
if (!lutProperty)
{
return false;
}
vtkSMPropertyHelper lutPropertyHelper(lutProperty);
if (lutPropertyHelper.GetNumberOfElements() == 0 ||
lutPropertyHelper.GetAsProxy(0) == NULL)
{
return false;
}
SM_SCOPED_TRACE(CallMethod)
.arg(this)
.arg("HideScalarBarIfNotNeeded")
.arg(view)
.arg("comment", "hide scalars not actively used");
vtkSMProxy* lutProxy = lutPropertyHelper.GetAsProxy(0);
vtkNew<vtkSMTransferFunctionManager> tmgr;
return tmgr->HideScalarBarIfNotNeeded(lutProxy, view);
}
//----------------------------------------------------------------------------
bool vtkSMPVRepresentationProxy::IsScalarBarVisible(vtkSMProxy* view)
{
vtkSMProperty* lutProperty = this->GetProperty("LookupTable");
if (!lutProperty)
{
return false;
}
vtkSMPropertyHelper lutPropertyHelper(lutProperty);
if (lutPropertyHelper.GetNumberOfElements() == 0 ||
lutPropertyHelper.GetAsProxy(0) == NULL)
{
return false;
}
vtkSMProxy* lutProxy = lutPropertyHelper.GetAsProxy(0);
return vtkSMTransferFunctionProxy::IsScalarBarVisible(lutProxy, view);
}
//----------------------------------------------------------------------------
vtkPVArrayInformation* vtkSMPVRepresentationProxy::GetArrayInformationForColorArray()
{
if (!this->GetUsingScalarColoring())
{
return NULL;
}
// now, determine a name for it if possible.
vtkSMPropertyHelper colorArrayHelper(this, "ColorArrayName");
vtkSMPropertyHelper inputHelper(this, "Input");
vtkSMSourceProxy* input = vtkSMSourceProxy::SafeDownCast(inputHelper.GetAsProxy());
unsigned int port = inputHelper.GetOutputPort();
if (input)
{
vtkPVArrayInformation* arrayInfoFromData = input->GetDataInformation(port)->GetArrayInformation(
colorArrayHelper.GetInputArrayNameToProcess(),
colorArrayHelper.GetInputArrayAssociation());
if (arrayInfoFromData)
{
return arrayInfoFromData;
}
}
vtkPVArrayInformation* arrayInfo =
this->GetRepresentedDataInformation()->GetArrayInformation(
colorArrayHelper.GetInputArrayNameToProcess(),
colorArrayHelper.GetInputArrayAssociation());
if (arrayInfo)
{
return arrayInfo;
}
return NULL;
}
//----------------------------------------------------------------------------
vtkPVProminentValuesInformation*
vtkSMPVRepresentationProxy::GetProminentValuesInformationForColorArray(
double uncertaintyAllowed, double fraction)
{
if (!this->GetUsingScalarColoring())
{
return NULL;
}
vtkPVArrayInformation* arrayInfo = this->GetArrayInformationForColorArray();
if (!arrayInfo)
{
return NULL;
}
vtkSMPropertyHelper colorArrayHelper(this, "ColorArrayName");
return this->GetProminentValuesInformation(
arrayInfo->GetName(), colorArrayHelper.GetInputArrayAssociation(),
arrayInfo->GetNumberOfComponents(),
uncertaintyAllowed, fraction);
}
//----------------------------------------------------------------------------
bool vtkSMPVRepresentationProxy::SetRepresentationType(const char* type)
{
const int CALL_SUPERCLASS = 0;
try
{
if (type == 0)
{
throw CALL_SUPERCLASS;
}
if (strcmp(type, "Volume") != 0 && strcmp(type, "Slice") != 0)
{
throw CALL_SUPERCLASS;
}
// we are changing to volume or slice representation.
if (this->GetUsingScalarColoring())
{
throw CALL_SUPERCLASS;
}
// pick a color array and then accept or fail as applicable.
vtkSMProperty* colorArrayName = this->GetProperty("ColorArrayName");
if (colorArrayName)
{
vtkSMArrayListDomain* ald = vtkSMArrayListDomain::SafeDownCast(
colorArrayName->FindDomain("vtkSMArrayListDomain"));
if (ald && ald->GetNumberOfStrings() > 0)
{
unsigned int index=0;
// if possible, pick a "point" array since that works better with some
// crappy volume renderers. We need to fixed all volume mapper to not
// segfault when cell data is picked.
for (unsigned int cc=0, max=ald->GetNumberOfStrings(); cc < max; cc++)
{
if (ald->GetFieldAssociation(cc) == vtkDataObject::POINT)
{
index = cc;
break;
}
}
if (this->SetScalarColoring(ald->GetString(index), ald->GetFieldAssociation(index)))
{
// Ensure that the transfer function is rescaled, as if user picked the array to color
// with from the UI. I wonder if SetScalarColoring should really take care of it.
this->RescaleTransferFunctionToDataRange(true);
throw CALL_SUPERCLASS;
}
}
}
}
catch (int val)
{
if (val == CALL_SUPERCLASS)
{
return this->Superclass::SetRepresentationType(type);
}
}
// It's not sure if the we should error out or still do the change. Opting for
// going further with the change in representation type for now.
return this->Superclass::SetRepresentationType(type);
}
//----------------------------------------------------------------------------
void vtkSMPVRepresentationProxy::PrintSelf(ostream& os, vtkIndent indent)
{
this->Superclass::PrintSelf(os, indent);
}