source: osgVisual/src/draw2D/visual_debug_hud.cpp @ 31

Last change on this file since 31 was 31, checked in by Torben Dannhauer, 14 years ago

Adding first version of osgVisual!!

File size: 4.7 KB
Line 
1/* -*-c++-*- osgVisual - Copyright (C) 2009-2010 Torben Dannhauer
2 *
3 * This library is based on OpenSceneGraph, open source and may be redistributed and/or modified under
4 * the terms of the OpenSceneGraph Public License (OSGPL) version 0.0 or
5 * (at your option) any later version.  The full license is in LICENSE file
6 * included with this distribution, and on the openscenegraph.org website.
7 *
8 * osgVisual requires for some proprietary modules a license from the correspondig manufacturer.
9 * You have to aquire licenses for all used proprietary modules.
10 *
11 * This library is distributed in the hope that it will be useful,
12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
14 * OpenSceneGraph Public License for more details.
15*/
16
17#include <visual_debug_hud.h>
18
19using namespace osgVisual;
20
21visual_debug_hud::visual_debug_hud(void)
22{
23
24}
25
26visual_debug_hud::~visual_debug_hud(void)
27{
28}
29
30bool visual_debug_hud::init( osgViewer::Viewer *viewer_, osg::CoordinateSystemNode* rootNode_  )
31{       
32
33
34
35    screen_width = viewer_->getCamera()->getViewport()->width();
36    screen_height = viewer_->getCamera()->getViewport()->height();
37       
38        visual_draw2D::getInstance()->addDrawContent( addContent(), "HUD" );
39
40        // Set callback.
41        updateCallback = new HudUpdateCallback( rootNode_, viewer_->getCamera() );
42        this->setEventCallback( updateCallback );
43
44        isInitialized = true;
45
46        return true;
47}
48
49void visual_debug_hud::shutdown()
50{
51        if (isInitialized)
52        {       
53                // Remove updatecallback
54                this->removeUpdateCallback( updateCallback );
55                updateCallback = NULL;
56        }
57}
58
59osg::ref_ptr<osg::Geode> visual_debug_hud::addContent()
60{
61        osg::ref_ptr<osg::Geode> hudGeode = this;
62
63        // turn lighting off
64        osg::ref_ptr<osg::StateSet> stateset = hudGeode->getOrCreateStateSet();
65    stateset->setMode(GL_LIGHTING,osg::StateAttribute::OFF);
66
67
68   
69        // Add Text:
70        osg::Vec3 position(screen_width-180.0f,120.0f,0.0f);
71        osg::Vec3 delta(0.0f,-25.0f,0.0f);
72        std::string timesFont("fonts/arial.ttf");
73        {
74                textLat = new osgText::Text;
75                hudGeode->addDrawable( textLat );
76                textLat->setFont(timesFont);
77                textLat->setPosition(position);
78                textLat->setCharacterSize(21);
79                textLat->setDataVariance(osg::Object::DYNAMIC); 
80
81                position += delta;
82
83                textLon = new osgText::Text;
84                hudGeode->addDrawable( textLon );
85                textLon->setFont(timesFont);
86                textLon->setPosition(position);
87                textLon->setCharacterSize(21);
88                textLon->setDataVariance(osg::Object::DYNAMIC); 
89
90                position += delta;
91
92                textAlt = new osgText::Text;
93                hudGeode->addDrawable( textAlt );
94                textAlt->setFont(timesFont);
95                textAlt->setPosition(position);
96                textAlt->setCharacterSize(21);
97                textAlt->setDataVariance(osg::Object::DYNAMIC); 
98
99                position += delta;
100
101                textHat = new osgText::Text;
102                hudGeode->addDrawable( textHat );
103                textHat->setFont(timesFont);
104                textHat->setPosition(position);
105                textHat->setCharacterSize(21);
106                textHat->setDataVariance(osg::Object::DYNAMIC); 
107
108                position += delta;
109
110                textHot = new osgText::Text;
111                hudGeode->addDrawable( textHot );
112                textHot->setFont(timesFont);
113                textHot->setPosition(position);
114                textHot->setCharacterSize(21);
115                textHot->setDataVariance(osg::Object::DYNAMIC); 
116
117                position += delta;
118        }
119
120        return hudGeode.get();
121}
122
123void visual_debug_hud::HudUpdateCallback::operator()(osg::Node* node, osg::NodeVisitor* nv)
124{
125        visual_debug_hud* hud = dynamic_cast<visual_debug_hud*>(node);
126        if ( !hud )
127        {
128                OSG_NOTIFY(osg::FATAL) << "ERROR : No object found. Unable to apply this callback!" << std::endl;
129                return;
130        }
131
132        // Retrieving new HUD values
133
134        double lat = 0;
135        double lon = 0;
136        double hat = 0;
137        double hot = 0;
138        double alt = 0;
139
140        util::getWGS84ofCamera( sceneCamera, csn, lat, lon, alt ); 
141        util::queryHeightAboveTerrainInWGS84(hat, csn, lat, lon, alt);
142        util::queryHeightOfTerrain(hot, csn, lat, lon);
143
144
145        // Updating Display Elements:
146        std::ostringstream valuestring;
147       
148        valuestring.str("");
149        valuestring << osg::RadiansToDegrees( lat );
150        hud->textLat->setText("LAT: "+valuestring.str());
151
152        valuestring.str("");
153        valuestring << osg::RadiansToDegrees( lon );
154        hud->textLon->setText("LON: "+valuestring.str());
155
156        valuestring << std::fixed;
157        valuestring.precision(2);
158        valuestring.fill('0');
159
160        valuestring.width(8);
161        valuestring.str("");
162        valuestring << alt;
163        hud->textAlt->setText("ALT: "+valuestring.str());
164
165
166        valuestring.width(8);
167        valuestring.str("");
168        valuestring << hat;
169        hud->textHat->setText("HAT: "+valuestring.str());
170
171        valuestring.width(8);
172        valuestring.str("");
173        valuestring << hot;
174        hud->textHot->setText("HOT: "+valuestring.str());
175}
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