File indexing completed on 2025-01-26 05:19:14 

0001 /* Atelier KDE Printer Host for 3D Printing
0002     Copyright (C) <2017-2018>
0003     Author: Patrick José Pereira - patrickjp@kde.org
0004             Kevin Ottens - ervin@kde.org
0005 
0006     This program is free software; you can redistribute it and/or
0007     modify it under the terms of the GNU General Public License as
0008     published by the Free Software Foundation; either version 3 of
0009     the License or any later version accepted by the membership of
0010     KDE e.V. (or its successor approved by the membership of KDE
0011     e.V.), which shall act as a proxy defined in Section 14 of
0012     version 3 of the license.
0013 
0014     This program is distributed in the hope that it will be useful,
0015     but WITHOUT ANY WARRANTY; without even the implied warranty of
0016     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
0017     GNU General Public License for more details.
0018 
0019     You should have received a copy of the GNU General Public License
0020     along with this program.  If not, see <http://www.gnu.org/licenses/>.
0021 */
0022 
0023 #include "linemeshgeometry.h"
0024 #include <QVector3D>
0025 #include <QVector>
0026 
0027 LineMeshGeometry::LineMeshGeometry(const QVector<QVector3D> &vertices, Qt3DCore::QNode *parent)
0028     : Qt3DRender::QGeometry(parent)
0029     , _positionAttribute(new Qt3DRender::QAttribute(this))
0030     , _vertexBuffer(new Qt3DRender::QBuffer(Qt3DRender::QBuffer::VertexBuffer, this))
0031 {
0032     QByteArray vertexBufferData;
0033     vertexBufferData.resize(vertices.size() * static_cast<int>(sizeof(QVector3D)));
0034     memcpy(vertexBufferData.data(), vertices.constData(), static_cast<size_t>(vertexBufferData.size()));
0035     _vertexBuffer->setData(vertexBufferData);
0036 
0037     _positionAttribute->setAttributeType(Qt3DRender::QAttribute::VertexAttribute);
0038     _positionAttribute->setBuffer(_vertexBuffer);
0039     _positionAttribute->setDataType(Qt3DRender::QAttribute::Float);
0040     _positionAttribute->setDataSize(3);
0041     _positionAttribute->setName(Qt3DRender::QAttribute::defaultPositionAttributeName());
0042 
0043     addAttribute(_positionAttribute);
0044 }
0045 
0046 int LineMeshGeometry::vertexCount()
0047 {
0048     return _vertexBuffer->data().size() / static_cast<int>(sizeof(QVector3D));
0049 }