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Mesh: add GUI to perform mesh decimation

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wmayer
2020-05-03 15:06:03 +02:00
parent a759c7ecd6
commit 3bef7ba7c9
6 changed files with 426 additions and 0 deletions
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169
src/Mod/Mesh/Gui/DlgDecimating.cpp Normal file
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/***************************************************************************
* Copyright (c) 2020 Werner Mayer <wmayer[at]users.sourceforge.net> *
* *
* This file is part of the FreeCAD CAx development system. *
* *
* This library is free software; you can redistribute it and/or *
* modify it under the terms of the GNU Library General Public *
* License as published by the Free Software Foundation; either *
* version 2 of the License, or (at your option) any later version. *
* *
* This library is distributed in the hope that it will be useful, *
* but WITHOUT ANY WARRANTY; without even the implied warranty of *
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the *
* GNU Library General Public License for more details. *
* *
* You should have received a copy of the GNU Library General Public *
* License along with this library; see the file COPYING.LIB. If not, *
* write to the Free Software Foundation, Inc., 59 Temple Place, *
* Suite 330, Boston, MA 02111-1307, USA *
* *
***************************************************************************/
#include "PreCompiled.h"
#include "DlgDecimating.h"
#include "ui_DlgDecimating.h"
#include <Gui/WaitCursor.h>
#include <Gui/Command.h>
#include <Gui/Selection.h>
#include <Mod/Mesh/App/MeshFeature.h>
using namespace MeshGui;
/* TRANSLATOR MeshGui::DlgDecimating */
DlgDecimating::DlgDecimating(QWidget* parent, Qt::WindowFlags fl)
: QWidget(parent, fl)
, numberOfTriangles(0)
, ui(new Ui_DlgDecimating)
{
ui->setupUi(this);
ui->spinBoxReduction->setMinimumWidth(60);
ui->checkAbsolueNumber->setEnabled(false);
on_checkAbsolueNumber_toggled(false);
}
DlgDecimating::~DlgDecimating()
{
}
bool DlgDecimating::isAbsoluteNumber() const
{
return ui->checkAbsolueNumber->isChecked();
}
int DlgDecimating::targetNumberOfTriangles() const
{
if (ui->checkAbsolueNumber->isChecked()) {
return ui->spinBoxReduction->value();
}
else {
return numberOfTriangles * (1.0 - reduction());
}
}
void DlgDecimating::setNumberOfTriangles(int num)
{
numberOfTriangles = num;
ui->checkAbsolueNumber->setEnabled(num > 0);
if (num <= 0)
ui->checkAbsolueNumber->setChecked(false);
}
void DlgDecimating::on_checkAbsolueNumber_toggled(bool on)
{
ui->sliderReduction->setDisabled(on);
ui->groupBoxTolerance->setDisabled(on);
if (on) {
disconnect(ui->sliderReduction, SIGNAL(valueChanged(int)), ui->spinBoxReduction, SLOT(setValue(int)));
disconnect(ui->spinBoxReduction, SIGNAL(valueChanged(int)), ui->sliderReduction, SLOT(setValue(int)));
ui->spinBoxReduction->setRange(1, numberOfTriangles);
ui->spinBoxReduction->setValue(numberOfTriangles * (1.0 - reduction()));
ui->spinBoxReduction->setSuffix(QString());
ui->checkAbsolueNumber->setText(tr("Absolute number (Maximum: %1)").arg(numberOfTriangles));
}
else {
ui->spinBoxReduction->setRange(0, 100);
ui->spinBoxReduction->setValue(ui->sliderReduction->value());
ui->spinBoxReduction->setSuffix(QString::fromLatin1("%"));
ui->checkAbsolueNumber->setText(tr("Absolute number"));
connect(ui->sliderReduction, SIGNAL(valueChanged(int)), ui->spinBoxReduction, SLOT(setValue(int)));
connect(ui->spinBoxReduction, SIGNAL(valueChanged(int)), ui->sliderReduction, SLOT(setValue(int)));
}
}
double DlgDecimating::tolerance() const
{
return ui->spinBoxTolerance->value();
}
/**
* Returns the level of reduction in the range [0, 1]. 0 means no reduction, 1 means full
* reduction.
*/
double DlgDecimating::reduction() const
{
double max = static_cast<double>(ui->sliderReduction->maximum());
double min = static_cast<double>(ui->sliderReduction->minimum());
double val = static_cast<double>(ui->sliderReduction->value());
return (val - min)/(max - min);
}
// ---------------------------------------
/* TRANSLATOR MeshGui::TaskDecimating */
TaskDecimating::TaskDecimating()
{
widget = new DlgDecimating();
Gui::TaskView::TaskBox* taskbox = new Gui::TaskView::TaskBox(
QPixmap(), widget->windowTitle(), false, 0);
taskbox->groupLayout()->addWidget(widget);
Content.push_back(taskbox);
std::vector<Mesh::Feature*> meshes = Gui::Selection().getObjectsOfType<Mesh::Feature>();
if (meshes.size() == 1) {
Mesh::Feature* mesh = meshes.front();
const Mesh::MeshObject& mm = mesh->Mesh.getValue();
widget->setNumberOfTriangles(static_cast<int>(mm.countFacets()));
}
}
TaskDecimating::~TaskDecimating()
{
// automatically deleted in the sub-class
}
bool TaskDecimating::accept()
{
std::vector<Mesh::Feature*> meshes = Gui::Selection().getObjectsOfType<Mesh::Feature>();
if (meshes.empty())
return true;
Gui::Selection().clearSelection();
Gui::WaitCursor wc;
Gui::Command::openCommand("Mesh Decimating");
float tolerance = widget->tolerance();
float reduction = widget->reduction();
bool absolute = widget->isAbsoluteNumber();
int targetSize = 0;
if (absolute)
targetSize = widget->targetNumberOfTriangles();
for (std::vector<Mesh::Feature*>::const_iterator it = meshes.begin(); it != meshes.end(); ++it) {
Mesh::Feature* mesh = *it;
Mesh::MeshObject* mm = mesh->Mesh.startEditing();
if (absolute)
mm->decimate(targetSize);
else
mm->decimate(tolerance, reduction);
mesh->Mesh.finishEditing();
}
Gui::Command::commitCommand();
return true;
}
#include "moc_DlgDecimating.cpp"