ResInsight/Fwk/VizFwk/LibGeometry/cvfArrowGenerator.cpp

119 lines
4.5 KiB
C++

//##################################################################################################
//
// Custom Visualization Core library
// Copyright (C) 2011-2013 Ceetron AS
//
// This library may be used under the terms of either the GNU General Public License or
// the GNU Lesser General Public License as follows:
//
// GNU General Public License Usage
// This library is free software: you can redistribute it and/or modify
// it under the terms of the GNU General Public License as published by
// the Free Software Foundation, either version 3 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 General Public License at <<http://www.gnu.org/licenses/gpl.html>>
// for more details.
//
// GNU Lesser General Public License Usage
// This library is free software; you can redistribute it and/or modify
// it under the terms of the GNU Lesser General Public License as published by
// the Free Software Foundation; either version 2.1 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 Lesser General Public License at <<http://www.gnu.org/licenses/lgpl-2.1.html>>
// for more details.
//
//##################################################################################################
#include "cvfBase.h"
#include "cvfArrowGenerator.h"
#include "cvfGeometryUtils.h"
namespace cvf {
//==================================================================================================
///
/// \class cvf::ArrowGenerator
/// \ingroup Geometry
///
/// Creates an arrow starting in origin and pointing in the direction of the +Z axis
///
//==================================================================================================
//--------------------------------------------------------------------------------------------------
///
//--------------------------------------------------------------------------------------------------
ArrowGenerator::ArrowGenerator()
: m_shaftRelativeRadius(0.025f),
m_headRelativeRadius(0.085f),
m_headRelativeLength(0.25f),
m_numSlices(20)
{
}
//--------------------------------------------------------------------------------------------------
///
//--------------------------------------------------------------------------------------------------
void ArrowGenerator::setShaftRelativeRadius(float shaftRelativeRadius)
{
m_shaftRelativeRadius = shaftRelativeRadius;
}
//--------------------------------------------------------------------------------------------------
///
//--------------------------------------------------------------------------------------------------
void ArrowGenerator::setHeadRelativeRadius(float headRelativeRadius)
{
m_headRelativeRadius = headRelativeRadius;
}
//--------------------------------------------------------------------------------------------------
///
//--------------------------------------------------------------------------------------------------
void ArrowGenerator::setHeadRelativeLength(float headRelativeLength)
{
m_headRelativeLength = headRelativeLength;
}
//--------------------------------------------------------------------------------------------------
///
//--------------------------------------------------------------------------------------------------
void ArrowGenerator::setNumSlices(uint numSlices)
{
m_numSlices = numSlices;
}
//--------------------------------------------------------------------------------------------------
///
//--------------------------------------------------------------------------------------------------
void ArrowGenerator::generate(GeometryBuilder* builder)
{
const uint numPolysZDir = 1;
GeometryUtils::createObliqueCylinder(m_shaftRelativeRadius, m_shaftRelativeRadius, 1.0f - m_headRelativeLength, 0, 0, m_numSlices, true, true, false, numPolysZDir, builder);
uint startIdx = builder->vertexCount();
GeometryUtils::createCone(m_headRelativeRadius, m_headRelativeLength, m_numSlices, true, true, true, builder);
uint endIdx = builder->vertexCount() - 1;
Mat4f mat = Mat4f::fromTranslation(Vec3f(0, 0, 1.0f - m_headRelativeLength));
builder->transformVertexRange(startIdx, endIdx, mat);
}
} // namespace cvf