229 lines
7.4 KiB
C++
229 lines
7.4 KiB
C++
#include "NativeRender.h"
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#ifndef NATIVE_TAG
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#define NATIVE_TAG "NativeRender"
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#endif
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namespace NativeOpenCAX {
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NativeRender::NativeRender()
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{
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}
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NativeRender::~NativeRender() {
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shapes_.clear();
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}
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bool NativeRender::init(int width, int height,EGLCore* eglCore) {
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rendOption.eglCore=eglCore;
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rendOption.width=width;
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rendOption.height=height;
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if(!InitGraphicDriver(rendOption)){
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HILOG_ERROR(NATIVE_TAG,"InitGraphicDriver Fail!");
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return false;
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}
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if(!InitTextSyle(rendOption)){
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HILOG_ERROR(NATIVE_TAG,"InitTextSyle Fail!");
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return false;
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}
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if(!InitViewer(rendOption)){
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HILOG_ERROR(NATIVE_TAG,"InitViewer Fail!");
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return false;
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}
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if(!InitCtx(rendOption)){
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HILOG_ERROR(NATIVE_TAG,"InitCtx Fail!");
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return false;
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}
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if(!InitWorldAxis(rendOption)){
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HILOG_ERROR(NATIVE_TAG,"InitWorldAxis Fail!");
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return false;
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}
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if(!InitLocalAxis(rendOption)){
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HILOG_ERROR(NATIVE_TAG,"InitLocalAxis Fail!");
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return false;
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}
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if(!InitView(rendOption)){
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HILOG_ERROR(NATIVE_TAG,"InitView Fail!");
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return false;
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}
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if(!InitCamera(rendOption)){
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HILOG_ERROR(NATIVE_TAG,"InitCamera Fail!");
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return false;
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}
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return true;
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}
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bool NativeRender::loadModel(const std::string& filePath) {
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// 清除现有模型
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for (auto& shape : shapes_) {
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rendOption.context->Remove(shape, Standard_False);
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}
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shapes_.clear();
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// 加载STEP文件
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STEPControl_Reader reader;
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IFSelect_ReturnStatus status = reader.ReadFile(filePath.c_str());
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if (status != IFSelect_RetDone) {
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printf("Error: Failed to read STEP file: %s\n", filePath.c_str());
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return false;
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}
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// 将文件内容转换为OCCT形状
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reader.TransferRoots();
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int numShapes = reader.NbShapes();
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if (numShapes <= 0) {
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printf("Error: No shapes found in STEP file\n");
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return false;
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}
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// 加载所有形状
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for (Standard_Integer i = 1; i <= numShapes; i++) {
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TopoDS_Shape shape = reader.Shape(i);
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Bnd_Box bbox;
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BRepBndLib::Add(shape, bbox);
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double xmin, ymin, zmin, xmax, ymax, zmax;
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bbox.Get(xmin, ymin, zmin, xmax, ymax, zmax);
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gp_Pnt center((xmin + xmax) / 2.0, (ymin + ymax) / 2.0, (zmin + zmax) / 2.0);
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gp_Vec translation(-center.X(), -center.Y(), -center.Z());
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gp_Trsf move;
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move.SetTranslation(translation);
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BRepBuilderAPI_Transform transformer(shape, move);
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shape=transformer.Shape();
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if (!shape.IsNull()) {
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Handle(AIS_Shape) aisShape = new AIS_Shape(shape);
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// 设置材质
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Handle(Prs3d_Drawer) drawer = aisShape->Attributes();
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Handle(Prs3d_ShadingAspect) shadingAspect = new Prs3d_ShadingAspect();
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// 随机颜色
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int colorIndex = i % 7;
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Quantity_Color color;
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switch (colorIndex) {
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case 0: color = Quantity_NOC_RED; break;
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case 1: color = Quantity_NOC_GREEN; break;
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case 2: color = Quantity_NOC_BLUE1; break;
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case 3: color = Quantity_NOC_YELLOW; break;
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case 4: color = Quantity_NOC_MAGENTA1; break;
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case 5: color = Quantity_NOC_CYAN1; break;
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case 6: color = Quantity_NOC_ORANGE; break;
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default: color = Quantity_NOC_WHITE;
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}
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shadingAspect->SetColor(color);
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shadingAspect->SetMaterial(Graphic3d_NOM_PLASTIC);
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drawer->SetShadingAspect(shadingAspect);
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rendOption.context->Display(aisShape, Standard_True);
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shapes_.push_back(aisShape);
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}
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}
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// 调整相机到合适位置
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rendOption.view->FitAll(0.5, Standard_True);
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rendOption.view->ZFitAll();
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OH_LOG_Print(LOG_APP, LOG_ERROR, LOG_PRINT_DOMAIN, "LoadModel","Successfully loaded STEP file with %{public}d shapes",numShapes);
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return true;
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}
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//setTranslation
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void NativeRender::setTranslation(float x, float y) {
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axis.translationX = x;
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axis.translationY = y;
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}
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void NativeRender::render() {
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if (rendOption.view.IsNull()) {
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OH_LOG_Print(LOG_APP, LOG_ERROR, LOG_PRINT_DOMAIN, "Render","View Is Null");
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return;
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}
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// 执行渲染
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rendOption.view->Redraw();
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}
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void NativeRender::resize(int width, int height) {
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rendOption.width = width;
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rendOption.height = height;
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if (!rendOption.view.IsNull()) {
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rendOption.view->MustBeResized();
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}
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}
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void NativeRender::setRotation(float xAngle, float yAngle) {
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//axis.rotationX = xAngle;
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//axis.rotationY = yAngle;
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if (rendOption.view.IsNull()) {
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OH_LOG_Print(LOG_APP, LOG_ERROR, LOG_PRINT_DOMAIN, "addRotationDelta", "View Is Null");
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return;
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}
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//Handle(Graphic3d_Camera) camera = rendOption.view->Camera();
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// --- 方案一：直接对相机进行增量旋转 ---
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// 这种方式模拟了“轨道”行为，绕着相机看向的目标点旋转。
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// 获取当前相机状态
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gp_Pnt currentEye = rendOption.camera->Eye();
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gp_Pnt currentCenter = rendOption.camera->Center();
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gp_Dir currentUp = rendOption.camera->Up();
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// 计算当前的视线方向和距离
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gp_Vec viewDir = currentCenter.XYZ() - currentEye.XYZ();
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double distance = viewDir.Magnitude();
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gp_Pnt rotationCenter = currentCenter; // 旋转中心设为当前目标点
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// 创建旋转增量
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gp_Quaternion rotX, rotY;
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// 从 gp_Ax1 中提取方向向量 (gp_Dir -> gp_Vec)
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gp_Vec xRotationAxis = rendOption.camera->Direction().XYZ().Crossed(currentUp.XYZ()); // 叉积得到X旋转轴
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if (xRotationAxis.Magnitude() > gp::Resolution()) { // 防止零向量导致的无效四元数
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rotX.SetVectorAndAngle(xRotationAxis, xAngle * M_PI / 180.0);
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} else {
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rotX.SetIdent(); // 如果叉积为零，则无旋转
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}
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// 从 gp_Ax1 中提取方向向量 (gp_Dir -> gp_Vec)
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gp_Vec yRotationAxis = currentUp.XYZ(); // Y旋转轴就是当前的Up方向
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if (yRotationAxis.Magnitude() > gp::Resolution()) {
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rotY.SetVectorAndAngle(yRotationAxis, yAngle * M_PI / 180.0);
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} else {
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rotY.SetIdent(); // 如果Up向量无效，则无旋转
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}
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// 组合旋转
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gp_Quaternion totalRotation = rotY * rotX;
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// 应用旋转到眼睛位置
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gp_Vec newViewDir = totalRotation * viewDir.Normalized();
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gp_Pnt newEye = rotationCenter.XYZ() - newViewDir.XYZ() * distance;
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// 计算新的 Up 方向
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gp_Dir newUp = totalRotation * currentUp;
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// 设置新相机参数
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rendOption.camera->SetEye(newEye);
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rendOption.camera->SetCenter(rotationCenter);
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rendOption.camera->SetUp(newUp);
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HILOG_ERROR(NATIVE_TAG,"Rotation");
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//rendOption.view->Redraw();
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}
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void NativeRender::setZoomLevel(float zoom) {
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axis.zoomLevel = std::max(0.1f, std::min(zoom, 5.0f)); // 限制缩放范围
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}
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void NativeRender::resetView() {
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axis.rotationX = 0.0f;
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axis.rotationY = 0.0f;
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axis.zoomLevel = 1.0f;
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if (!rendOption.view.IsNull()) {
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rendOption.view->SetProj(V3d_XposYnegZpos);
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rendOption.view->FitAll(0.05, Standard_False);
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}
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}
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void NativeRender::setClearColor(float r, float g, float b, float a) {
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rendOption.clearColor = Quantity_Color(r, g, b, Quantity_TOC_RGB);
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if (!rendOption.view.IsNull()) {
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rendOption.view->SetBackgroundColor(rendOption.clearColor);
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}
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}
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} // namespace NativeRenderer
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