OpenSceneGraph/include/osgText/Style
Robert Osfield 820166b49d Rewrote the Text3D bevel implementation to automatically adjust bevel thickness to avoid overalapping and erronous tesselation.
Added osgText::Bevel::s/getRoundedConcaveJunctions(bool) to control how the bevel should be tessellated around concave junctions on the glyph boundary.


git-svn-id: http://svn.openscenegraph.org/osg/OpenSceneGraph/trunk@14871 16af8721-9629-0410-8352-f15c8da7e697
2015-05-26 10:05:47 +00:00

119 lines
3.6 KiB
C++

/* -*-c++-*- OpenSceneGraph - Copyright (C) 1998-2010 Robert Osfield
*
* This library is open source and may be redistributed and/or modified under
* the terms of the OpenSceneGraph Public License (OSGPL) version 0.0 or
* (at your option) any later version. The full license is in LICENSE file
* included with this distribution, and on the openscenegraph.org website.
*
* 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
* OpenSceneGraph Public License for more details.
*/
#ifndef OSGTEXT_STYLE
#define OSGTEXT_STYLE 1
#include <osg/Object>
#include <osg/Vec2>
#include <osgText/Export>
#include <iosfwd>
#include <vector>
namespace osgText
{
class OSGTEXT_EXPORT Bevel : public osg::Object
{
public:
Bevel();
Bevel(const Bevel& bevel, const osg::CopyOp& copyop=osg::CopyOp::SHALLOW_COPY);
META_Object(osgText, Bevel)
bool operator == (const Bevel& rhs) const
{
if (_smoothConcaveJunctions != rhs._smoothConcaveJunctions) return false;
if (_thickness != rhs._thickness) return false;
return _vertices==rhs._vertices;
}
void setSmoothConcaveJunctions(bool flag) { _smoothConcaveJunctions = flag; }
bool getSmoothConcaveJunctions() const { return _smoothConcaveJunctions; }
void setBevelThickness(float thickness) { _thickness = thickness; }
float getBevelThickness() const { return _thickness; }
void flatBevel(float width=0.25f);
void roundedBevel(float width=0.5f, unsigned int numSteps=10);
void roundedBevel2(float width=0.5f, unsigned int numSteps=10);
typedef std::vector<osg::Vec2> Vertices;
void setVertices(const Vertices& vertices) { _vertices = vertices; }
Vertices& getVertices() { return _vertices; }
const Vertices& getVertices() const { return _vertices; }
void print(std::ostream& fout);
protected:
bool _smoothConcaveJunctions;
float _thickness;
Vertices _vertices;
};
class OSGTEXT_EXPORT Style : public osg::Object
{
public:
Style();
Style(const Style& style, const osg::CopyOp& copyop=osg::CopyOp::SHALLOW_COPY);
META_Object(osgText, Style)
/// default Layout implementation used if no other is specified on TextNode
static osg::ref_ptr<Style>& getDefaultStyle();
bool operator == (const Style& style) const;
/// NULL is no bevel
void setBevel(Bevel* bevel) { _bevel = bevel; }
const Bevel* getBevel() const { return _bevel.get(); }
/// 1 is the default width of the text
void setWidthRatio(float widthRatio) { _widthRatio = widthRatio; }
float getWidthRatio() const { return _widthRatio; }
/// 0 is 2D text
void setThicknessRatio(float thicknessRatio) { _thicknessRatio = thicknessRatio; }
float getThicknessRatio() const { return _thicknessRatio; }
/// 0 is off
void setOutlineRatio(float outlineRatio) { _outlineRatio = outlineRatio; }
float getOutlineRatio() const { return _outlineRatio; }
/// 1.0 is default number of samples
void setSampleDensity(float sd) { _sampleDensity = sd; }
float getSampleDensity() const { return _sampleDensity; }
protected:
osg::ref_ptr<Bevel> _bevel;
float _widthRatio;
float _thicknessRatio;
float _outlineRatio;
float _sampleDensity;
};
}
#endif