c5910c1530
* Using copy-ctor but class TechDraw::anglePoints has a trivial copy-ctor but non trivial assign operator [-Wclazy-rule-of-two-soft] * Using copy-ctor but class TechDraw::arcPoints has a trivial copy-ctor but non trivial assign operator [-Wclazy-rule-of-two-soft] * Missing reference in range-for with non trivial type [-Wclazy-range-loop-reference] * C++11 range-loop might detach Qt container (QList) [-Wclazy-range-loop-detach] * signal arguments need to be fully-qualified (TechDrawGui::QGIView instead of QGIView) [-Wclazy-fully-qualified-moc-types] * Use multi-arg instead [-Wclazy-qstring-arg] * Use midRef() instead [-Wclazy-qstring-ref]
352 lines
14 KiB
C++
352 lines
14 KiB
C++
/***************************************************************************
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* Copyright (c) 2019 WandererFan <wandererfan@gmail.com> *
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* *
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* This file is part of the FreeCAD CAx development system. *
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* *
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* This library is free software; you can redistribute it and/or *
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* modify it under the terms of the GNU Library General Public *
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* License as published by the Free Software Foundation; either *
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* version 2 of the License, or (at your option) any later version. *
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* *
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* This library is distributed in the hope that it will be useful, *
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* but WITHOUT ANY WARRANTY; without even the implied warranty of *
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the *
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* GNU Library General Public License for more details. *
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* *
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* You should have received a copy of the GNU Library General Public *
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* License along with this library; see the file COPYING.LIB. If not, *
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* write to the Free Software Foundation, Inc., 59 Temple Place, *
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* Suite 330, Boston, MA 02111-1307, USA *
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* *
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***************************************************************************/
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#include "PreCompiled.h"
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#ifndef _PreComp_
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#include <QScreen>
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#include <Inventor/SbColor.h>
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#include <Inventor/SbVec2s.h>
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#include <Inventor/SbViewportRegion.h>
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#include <Inventor/SoRenderManager.h>
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#include <Inventor/actions/SoWriteAction.h>
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#include <Inventor/annex/HardCopy/SoVectorizeAction.h>
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#include <Inventor/misc/SoChildList.h>
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#include <Inventor/nodes/SoCamera.h>
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#include <Inventor/nodes/SoDirectionalLight.h>
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#include <Inventor/nodes/SoNode.h>
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#include <Inventor/nodes/SoOrthographicCamera.h>
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#include <Inventor/nodes/SoPerspectiveCamera.h>
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#include <Inventor/nodes/SoSeparator.h>
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#endif
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#include <Base/Console.h>
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#include <Gui/Application.h>
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#include <Gui/Document.h>
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#include <Gui/MainWindow.h>
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#include <Gui/MDIView.h>
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#include <Gui/Selection.h>
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#include <Gui/View3DInventor.h>
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#include <Gui/View3DInventorViewer.h>
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#include <Gui/SoFCVectorizeSVGAction.h>
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#include "Grabber3d.h"
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using namespace TechDrawGui;
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using namespace TechDraw;
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using namespace Gui;
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//notes for selection view
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//SoSeparator* newSG;
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//for obj in objList:
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// vProv = obj.ViewObject
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// sg = vProv.getSG(obj);
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// for child in sg:
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// newSG->addChild();
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//
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//creates Svg file and returns estimate of scale
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double Grabber3d::copyActiveViewToSvgFile(App::Document* appDoc,
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std::string fileSpec,
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double outWidth, double outHeight,
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bool paintBackground, const QColor& bgColor,
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double lineWidth, double border,
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int renderMode)
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{
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// Base::Console().Message("G3d::copyActiveViewToSvgFile()\n");
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double result = 1.0; //best estimate of scale of result
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//get the active view
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Gui::Document* guiDoc = Gui::Application::Instance->getDocument(appDoc);
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Gui::MDIView* mdiView = guiDoc->getActiveView();
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if (!mdiView) {
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Base::Console().Warning("G3d::copyActiveViewToSvgFile - no ActiveView - returning\n");
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return result;
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}
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View3DInventor* view3d = qobject_cast<View3DInventor*>(mdiView);
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if (!view3d) {
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Base::Console().Warning("G3d::copyActiveViewToSvgFile - no viewer for ActiveView - returning\n");
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return result;
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}
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View3DInventorViewer* viewer = view3d->getViewer();
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if (!viewer) {
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Base::Console().Warning("G3d::copyActiveViewToSvgFile - could not create viewer - returning\n");
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return result;
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}
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//save parameters of source view
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double mdiWidth = view3d->width();
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double mdiHigh = view3d->height();
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SbViewportRegion sourceVPRegion = viewer->getSoRenderManager()->getViewportRegion();
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SoCamera* sourceCam = viewer->getSoRenderManager()->getCamera();
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SbRotation sourceOrient = viewer->getCameraOrientation();
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SbVec3f sourcePos = viewer->getSoRenderManager()->getCamera()->position.getValue();
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double sourceNear = viewer->getSoRenderManager()->getCamera()->nearDistance.getValue();
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double sourceFar = viewer->getSoRenderManager()->getCamera()->farDistance.getValue();
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double sourceFocal = viewer->getSoRenderManager()->getCamera()->focalDistance.getValue();
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double sourceAspect = viewer->getSoRenderManager()->getCamera()->aspectRatio.getValue();
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SoOrthographicCamera* oCam = nullptr;
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SoPerspectiveCamera* pCam = nullptr;
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double sourceHeight = 0.0;
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double sourceAngle = 45.0;
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if (sourceCam->getTypeId() == SoOrthographicCamera::getClassTypeId()) {
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oCam = static_cast<SoOrthographicCamera*>(sourceCam);
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sourceHeight = oCam->height.getValue();
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} else if (sourceCam->getTypeId() == SoPerspectiveCamera::getClassTypeId()) {
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pCam = static_cast<SoPerspectiveCamera*>(sourceCam);
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sourceAngle = pCam->heightAngle.getValue();
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}
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oCam = nullptr;
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pCam = nullptr;
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//make a view for rendering Svg
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View3DInventor* view3DI = new View3DInventor(nullptr, nullptr); //essentially an undisplayed mdi
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// view3DI->setWindowTitle(QString::fromUtf8("SvgRenderViewer")); //fluff
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// Gui::getMainWindow()->addWindow(view3DI); //just for debugging. comment for release.
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View3DInventorViewer* viewerSvg = view3DI->getViewer();
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viewerSvg->setBackgroundColor(QColor(Qt::white));
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SoRenderManager* renderMgr = viewerSvg->getSoRenderManager();
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renderMgr->setRenderMode(SoRenderManager::RenderMode(renderMode));
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SbViewportRegion targetVPRegion;
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targetVPRegion.setWindowSize(mdiWidth, mdiHigh);
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targetVPRegion.setPixelsPerInch(sourceVPRegion.getPixelsPerInch());
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renderMgr->setViewportRegion(targetVPRegion);
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auto sgOld = viewer->getSceneGraph();
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SoSeparator* sgNew = copySceneGraph(sgOld);
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viewerSvg->setSceneGraph(sgNew);
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if (sourceCam->getTypeId() == SoOrthographicCamera::getClassTypeId()) {
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viewerSvg->setCameraType(SoOrthographicCamera::getClassTypeId());
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} else if (sourceCam->getTypeId() == SoPerspectiveCamera::getClassTypeId()) {
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viewerSvg->setCameraType(SoPerspectiveCamera::getClassTypeId());
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}
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// SoWriteAction writeAction; //dump the IV (debugging)
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// writeAction.apply(sgNew);
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//set Svg view params to match source
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SoCamera* svgCam = viewerSvg->getSoRenderManager()->getCamera();
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double zoomFactor = 1.0; //not used
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svgCam->orientation.setValue(sourceOrient);
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svgCam->position.setValue(sourcePos);
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svgCam->nearDistance.setValue(sourceNear);
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svgCam->farDistance.setValue(sourceFar);
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svgCam->focalDistance.setValue(sourceFocal);
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svgCam->aspectRatio.setValue(sourceAspect);
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if (svgCam->getTypeId() == SoOrthographicCamera::getClassTypeId()) {
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SoOrthographicCamera* oSvgCam = static_cast<SoOrthographicCamera*>(svgCam);
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double newHeight = sourceHeight * zoomFactor;
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oSvgCam->height.setValue(newHeight);
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} else if (svgCam->getTypeId() == SoPerspectiveCamera::getClassTypeId()) {
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SoPerspectiveCamera* vSvgCam = static_cast<SoPerspectiveCamera*>(svgCam);
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vSvgCam->heightAngle.setValue(sourceAngle);
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}
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viewerSvg->redraw();
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std::unique_ptr<SoVectorizeAction> va;
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va = std::unique_ptr<SoVectorizeAction>(new SoFCVectorizeSVGAction());
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SoVectorOutput* out = va->getOutput();
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if (!out || !out->openFile(fileSpec.c_str())) {
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Base::Console().Error("G3D::copyActiveViewToSvgFile - can not open file - %s/n", fileSpec.c_str());
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return result;
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}
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execVectorizeAction(viewerSvg,
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va.get(),
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outWidth, outHeight,
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paintBackground, bgColor,
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lineWidth, border);
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out->closeFile();
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result = getViewerScale(viewerSvg); //screen : world
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double pScale = getPaperScale(viewerSvg, outWidth, outHeight);
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//TODO: figure out net scaling world -> screen -> paper
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Base::Console().Log(
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"G3d::copyActiveViewToSvgFile - approx screen:world scale: 1:%.5f w/ort pixel size issues\n",
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result);
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Base::Console().Log(
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"G3d::copyActiveViewToSvgFile - approx paper/screen scale: 1:%.5f w/ort pixel size issues\n",
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pScale);
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// postProcessSvg(fileSpec);
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view3DI->close(); //comment out for debugging
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viewerSvg->setSceneGraph(nullptr);
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sgNew->unref();
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sgNew = nullptr;
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return result;
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}
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//==============================================================================
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SoSeparator* Grabber3d::copySceneGraph(SoNode* sgIn)
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{
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// Base::Console().Message("G3d::copySceneGraph()\n");
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SoSeparator* result = new SoSeparator();
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SoDirectionalLight* newLight = new SoDirectionalLight;
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result->addChild(newLight);
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SoNodeList* sgChildren = sgIn->getChildren();
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int childSize = sgChildren->getLength();
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//gather up the nodes to display
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for (int i=0; i < childSize; i++) {
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SoNode* c = (*sgChildren)[i];
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if (c->isOfType(SoGroup::getClassTypeId())) {
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auto cCopy = c->copy();
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result->addChild(cCopy);
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}
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}
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result->ref();
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return result;
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}
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//==============================================================================
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//loosely based on View3DInventorViewer::saveGraphic
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void Grabber3d::execVectorizeAction(Gui::View3DInventorViewer* viewer,
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SoVectorizeAction* va,
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double width, double height,
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bool paintBackground, const QColor& bgColor,
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double lineWidth, double border)
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{
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// Base::Console().Message("G3d::execVectorizeAction() - va: %X\n", va);
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if (va->getTypeId() == SoFCVectorizeSVGAction::getClassTypeId()) {
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SoFCVectorizeSVGAction* vaFC = static_cast<SoFCVectorizeSVGAction*>(va);
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vaFC->setBackgroundState(paintBackground);
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vaFC->setLineWidth(lineWidth);
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vaFC->setUseMM(true);
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}
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if (paintBackground && bgColor.isValid()) {
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va->setBackgroundColor(true, SbColor(bgColor.redF(), bgColor.greenF(), bgColor.blueF()));
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} else {
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va->setBackgroundColor(false);
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}
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va->setOrientation(SoVectorizeAction::PORTRAIT); //don't play with my w x h
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va->beginPage(SbVec2f(border, border), SbVec2f(width, height));
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va->beginViewport();
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va->calibrate(viewer->getSoRenderManager()->getViewportRegion());
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va->apply(viewer->getSoRenderManager()->getSceneGraph());
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va->endViewport();
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va->endPage();
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}
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//==============================================================================
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//find scale factor screen:world
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double Grabber3d::getViewerScale(Gui::View3DInventorViewer* viewer)
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{
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// Base::Console().Message("G3d::getViewerScale()\n");
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double result = 1;
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// double printerpxmm = 3.94; //? 100 dpi?
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double coinpxmm = 2.83; //72 dpi
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//accurate dpmm for screen is not easily acquired!
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// double qtpxmm = 96;
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// QScreen *screen = QGuiApplication::primaryScreen();
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// double qtppi = screen->physicalDotsPerInch(); //~111 dpi
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// qtpxmm = qtppi / 25.4;
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SbViewportRegion vpRegion = viewer->getSoRenderManager()->getViewportRegion();
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SbVec2s winSizePx = vpRegion.getWindowSize(); //pixel coords
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Base::Vector3d p1v(0,0,0);
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Base::Vector3d p2v(winSizePx[0] - 1, winSizePx[1] - 1);
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double screenLengthpx = (p2v - p1v).Length(); //length in pixels
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double screenLengthmm = (screenLengthpx / coinpxmm);
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SbVec2s p1s(0,0);
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SbVec2s p2s(winSizePx[0] - 1, winSizePx[1] - 1);
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SbVec3f p1w = viewer->getPointOnFocalPlane(p1s);
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SbVec3f p2w = viewer->getPointOnFocalPlane(p2s);
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double worldLengthmm = (p2w - p1w).length(); //mm
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result = worldLengthmm / screenLengthmm;
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return result;
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}
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//==============================================================================
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//find scale factor screen:"paper"
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double Grabber3d::getPaperScale(Gui::View3DInventorViewer* viewer,
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double pWidth, double pHeight)
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{
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// Base::Console().Message("G3d::getPaperScale()\n");
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double result = 1;
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// double printerpxmm = 3.94; //? 100 dpi?
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double coinpxmm = 2.83; //72 dpi
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//accurate dpmm for screen is not easily acquired!
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// double qtpxmm = 96;
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// QScreen *screen = QGuiApplication::primaryScreen();
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// double qtppi = screen->physicalDotsPerInch(); //~111 dpi
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// qtpxmm = qtppi / 25.4;
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SbViewportRegion vpRegion = viewer->getSoRenderManager()->getViewportRegion();
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SbVec2s winSizePx = vpRegion.getWindowSize(); //pixel coords
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Base::Vector3d p1v(0,0,0);
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Base::Vector3d p2v(winSizePx[0] - 1, winSizePx[1] - 1);
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double screenLengthpx = (p2v - p1v).Length(); //length in pixels
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// double screenLengthmm = (screenLengthpx / qtpxmm);
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double screenLengthmm = (screenLengthpx / coinpxmm);
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double paperLengthmm = sqrt( pow(pWidth, 2) + pow(pHeight, 2));
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result = paperLengthmm / screenLengthmm;
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double paperLengthpx = sqrt( pow(pWidth*coinpxmm, 2) + pow(pHeight*coinpxmm, 2));
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double resultpx = paperLengthpx / screenLengthpx;
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Base::Console().Log("G3d::getPaperScale - screenLenpx: %.3f paperLenpx: %.3f resultpx: %.3f\n",
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screenLengthpx, paperLengthpx, resultpx);
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Base::Console().Log("G3d::getPaperScale - screenLen: %.3f paperLen: %.3f result: %.3f\n",
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screenLengthmm, paperLengthmm, result);
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return result;
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}
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//==============================================================================
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void Grabber3d::postProcessSvg(std::string fileSpec)
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{
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(void) fileSpec;
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}
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