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#include "nmWxPostprocessingWidget.h"
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#include <vtkAutoInit.h>
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VTK_MODULE_INIT(vtkRenderingFreeType)
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#include <vtkPointData.h>
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#include <vtkDataSetReader.h>
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#include <vtkUnstructuredGrid.h>
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#include <vtkUnstructuredGridReader.h>
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#include "nmWxPostprocessingWidget.h"
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#include <QVTKWidget.h>
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#include <vtkSmartPointer.h>
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#include <vtkDataSetReader.h>
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#include <vtkUnstructuredGrid.h>
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#include <vtkDataSetMapper.h>
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#include <vtkActor.h>
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#include <vtkRenderer.h>
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#include <QPushButton>
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#include <QVBoxLayout>
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#include <QHBoxLayout>
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#include <QDebug>
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#include <vtkProperty.h>
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#include <vtkRenderWindow.h>
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#include <vtkScalarBarActor.h>
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#include <vtkSmartPointer.h>
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#include <vtkScalarBarActor.h>
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#include <vtkLookupTable.h>
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#include <vtkTextProperty.h>
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#include <QFrame>
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#include <vtkTextActor.h>
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#include <QLabel>
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nmWxPostprocessingWidget::nmWxPostprocessingWidget(QWidget *parent) : QWidget(parent)
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{
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this->initLayout();
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}
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void nmWxPostprocessingWidget::initLayout()
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{
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m_mainLayout = new QVBoxLayout;
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this->setLayout(m_mainLayout);
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QFrame* frame = new QFrame;
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m_frameLaoyt = new QVBoxLayout;
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m_frameLaoyt->setMargin(0);
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frame->setLayout(m_frameLaoyt);
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m_mainLayout->addWidget(frame);
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m_mainLayout->setMargin(0);
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qDebug() << "in initLayout";
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}
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void nmWxPostprocessingWidget::loadVTKFile(const QString &filePath)
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{
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QVTKWidget* vtkWidget = new QVTKWidget;
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// 创建新的渲染器
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vtkSmartPointer<vtkRenderer> newRenderer = vtkSmartPointer<vtkRenderer>::New();
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// 设置通用的 VTK 数据集读取器
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vtkSmartPointer<vtkDataSetReader> reader = vtkSmartPointer<vtkDataSetReader>::New();
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reader->SetFileName(filePath.toStdString().c_str());
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reader->Update(); // 更新读取器，确保读取文件数据
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// 获取读取到的数据集
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vtkDataSet* dataSet = reader->GetOutput();
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// 处理 UnstructuredGrid 类型的数据
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vtkUnstructuredGrid* unstructuredGrid = vtkUnstructuredGrid::SafeDownCast(dataSet);
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if (!unstructuredGrid) {
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qDebug() << "Failed to load unstructured grid from file:" << filePath; // 添加失败信息
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return; // 如果加载失败，直接返回
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}
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double scalarRange[2];
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unstructuredGrid->GetPointData()->GetScalars()->GetRange(scalarRange); // 计算标量范围
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qDebug() << "Loading file:" << filePath << " Scalar Range:" << scalarRange[0] << " " << scalarRange[1];
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vtkSmartPointer<vtkDataSetMapper> unstructuredMapper = vtkSmartPointer<vtkDataSetMapper>::New();
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unstructuredMapper->SetInputData(unstructuredGrid);
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unstructuredMapper->SetScalarRange(scalarRange);
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unstructuredMapper->ScalarVisibilityOn();
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// 创建演员（actor）
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vtkSmartPointer<vtkActor> actor = vtkSmartPointer<vtkActor>::New();
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actor->SetMapper(unstructuredMapper);
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actor->GetProperty()->SetEdgeVisibility(true);
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actor->GetProperty()->SetLineWidth(1.0); // 设置边缘宽度
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// 添加新演员到新的渲染器
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newRenderer->AddActor(actor);
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newRenderer->SetBackground(0.1, 0.2, 0.3); // 设置背景颜色
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// 创建颜色条
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vtkSmartPointer<vtkScalarBarActor> scalarBar = vtkSmartPointer<vtkScalarBarActor>::New();
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vtkSmartPointer<vtkLookupTable> lut = vtkSmartPointer<vtkLookupTable>::New();
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lut->SetNumberOfColors(256);
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lut->SetRange(scalarRange); // 设置查找表的范围为标量范围
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lut->Build();
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scalarBar->SetLookupTable(lut);
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scalarBar->SetTitle("data");
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scalarBar->SetPosition(0.05, 0.1); // 设置位置（右侧）
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scalarBar->SetWidth(0.1); // 设置宽度
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scalarBar->SetHeight(0.8); // 设置高度
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newRenderer->AddActor(scalarBar);
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// 创建文本演员以显示文件名
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vtkSmartPointer<vtkTextActor> textActor = vtkSmartPointer<vtkTextActor>::New();
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textActor->SetInput(QString("File: %1").arg(filePath).toStdString().c_str()); // 设置文本内容
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textActor->GetPositionCoordinate()->SetCoordinateSystemToNormalizedDisplay();
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textActor->SetPosition(0.1, 0.95); // 设置位置为右上角（稍微向内偏移）
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textActor->GetTextProperty()->SetFontSize(24); // 设置字体大小
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textActor->GetTextProperty()->SetColor(1.0, 1.0, 1.0); // 设置字体颜色为白色
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textActor->GetTextProperty()->SetFontFamilyToArial(); // 设置字体
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textActor->GetTextProperty()->SetItalic(1); // 斜体
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textActor->GetTextProperty()->SetBold(1); // 加粗
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newRenderer->AddActor(textActor);
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// 将新的渲染器添加到渲染窗口
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vtkWidget->GetRenderWindow()->AddRenderer(newRenderer);
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vtkWidget->GetRenderWindow()->Render(); // 渲染窗口
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// 添加到frame上
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m_frameLaoyt->addWidget(vtkWidget);
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}
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