1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
|
/* OpenSceneGraph example, osgtext.
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to deal
* in the Software without restriction, including without limitation the rights
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
* copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
* THE SOFTWARE.
*/
#include <osgViewer/Viewer>
#include <osgViewer/ViewerEventHandlers>
#include <osgDB/ReadFile>
#include <osgGA/TrackballManipulator>
#include <osgGA/StateSetManipulator>
#include <osg/Geode>
#include <osg/Geometry>
#include <osg/Material>
#include <osg/Shape>
#include <osg/ShapeDrawable>
#include <osgText/Text3D>
#include <iostream>
#include <sstream>
// create text which sits in 3D space such as would be inserted into a normal model
osg::Group* create3DText(const osg::Vec3& center,float radius)
{
osg::Geode* geode = new osg::Geode;
////////////////////////////////////////////////////////////////////////////////////////////////////////
//
// Examples of how to set up axis/orientation alignments
//
float characterSize=radius*0.2f;
float characterDepth=characterSize*0.2f;
osg::Vec3 pos(center.x()-radius*.5f,center.y()-radius*.5f,center.z()-radius*.5f);
osgText::Text3D* text1 = new osgText::Text3D;
text1->setFont("fonts/arial.ttf");
text1->setCharacterSize(characterSize);
text1->setCharacterDepth(characterDepth);
text1->setPosition(pos);
text1->setDrawMode(osgText::Text3D::TEXT | osgText::Text3D::BOUNDINGBOX);
text1->setAxisAlignment(osgText::Text3D::XY_PLANE);
text1->setText("XY_PLANE");
geode->addDrawable(text1);
osgText::Text3D* text2 = new osgText::Text3D;
text2->setFont("fonts/times.ttf");
text2->setCharacterSize(characterSize);
text2->setCharacterDepth(characterDepth);
text2->setPosition(pos);
text2->setDrawMode(osgText::Text3D::TEXT | osgText::Text3D::BOUNDINGBOX);
text2->setAxisAlignment(osgText::Text3D::YZ_PLANE);
text2->setText("YZ_PLANE");
geode->addDrawable(text2);
osgText::Text3D* text3 = new osgText::Text3D;
text3->setFont("fonts/dirtydoz.ttf");
text3->setCharacterSize(characterSize);
text3->setCharacterDepth(characterDepth);
text3->setPosition(pos);
text3->setDrawMode(osgText::Text3D::TEXT | osgText::Text3D::BOUNDINGBOX);
text3->setAxisAlignment(osgText::Text3D::XZ_PLANE);
text3->setText("XZ_PLANE");
geode->addDrawable(text3);
osg::ref_ptr<osgText::Style> style = new osgText::Style;
osg::ref_ptr<osgText::Bevel> bevel = new osgText::Bevel;
bevel->roundedBevel2(0.25);
style->setBevel(bevel.get());
style->setWidthRatio(0.4f);
osgText::Text3D* text7 = new osgText::Text3D;
text7->setFont("fonts/times.ttf");
text7->setStyle(style.get());
text7->setCharacterSize(characterSize);
text7->setCharacterDepth(characterSize*0.2f);
text7->setPosition(center - osg::Vec3(0.0, 0.0, 0.6));
text7->setDrawMode(osgText::Text3D::TEXT | osgText::Text3D::BOUNDINGBOX);
text7->setAxisAlignment(osgText::Text3D::SCREEN);
text7->setCharacterSizeMode(osgText::Text3D::OBJECT_COORDS);
text7->setText("CharacterSizeMode OBJECT_COORDS (default)");
geode->addDrawable(text7);
osg::ShapeDrawable* shape = new osg::ShapeDrawable(new osg::Sphere(center,characterSize*0.2f));
shape->getOrCreateStateSet()->setMode(GL_LIGHTING,osg::StateAttribute::ON);
geode->addDrawable(shape);
osg::Group* rootNode = new osg::Group;
rootNode->addChild(geode);
osg::Material* front = new osg::Material;
front->setAlpha(osg::Material::FRONT_AND_BACK,1);
front->setAmbient(osg::Material::FRONT_AND_BACK,osg::Vec4(0.2,0.2,0.2,1.0));
front->setDiffuse(osg::Material::FRONT_AND_BACK,osg::Vec4(.0,.0,1.0,1.0));
rootNode->getOrCreateStateSet()->setAttributeAndModes(front);
return rootNode;
}
int main_orig(int, char**)
{
osgViewer::Viewer viewer;
osg::Vec3 center(0.0f,0.0f,0.0f);
float radius = 1.0f;
osg::Group* root = new osg::Group;
root->addChild(create3DText(center, radius));
viewer.setSceneData(root);
viewer.setCameraManipulator(new osgGA::TrackballManipulator());
viewer.addEventHandler( new osgGA::StateSetManipulator(viewer.getCamera()->getOrCreateStateSet()) );
viewer.addEventHandler(new osgViewer::ThreadingHandler);
viewer.addEventHandler(new osgViewer::WindowSizeHandler);
viewer.addEventHandler(new osgViewer::StatsHandler);
viewer.run();
return 0;
}
|
