如何运行osgearth_triton.cpp

liyihongcug

osgearth２.８　ｏｓｇ３．４
代码如下
#include <osgViewer/Viewer>
#include <osgDB/FileNameUtils>
#include <osgEarthUtil/EarthManipulator>
#include <osgEarthUtil/ExampleResources>
#include <osgEarthUtil/Controls>
#include <osgEarthTriton/TritonNode>

#define LC "[osgearth_sundog] "

using namespace osgEarth;
using namespace osgEarth::Util;
using namespace osgEarth::Triton;
namespace ui = osgEarth::Util::Controls;

struct Settings
{
    TritonNode* triton;
    optional<double> chop;
    optional<double> seaState;
    optional<float> alpha;
   
    void apply(Environment& env, Ocean& ocean)
    {
        if (chop.isSet())
        {
            ocean.SetChoppiness(chop.get());
            chop.clear();
        }

        if (seaState.isSet())
        {
            env.SimulateSeaState(seaState.get(), 0.0);
            seaState.clear();
        }

        if (alpha.isSet())
        {
            triton->setAlpha( alpha.get() );
        }
    }
};
Settings s_settings;


template<typename T> struct Set : public ui::ControlEventHandler
{
    optional<T>& _var;
    Set(optional<T>& var) : _var(var) { }
    void onValueChanged(ui::Control*, double value) { _var = value; }
};


Container* createUI()
{
    VBox* box = new VBox();
    box->setBackColor(0,0,0,0.5);
    Grid* grid = box->addControl(new Grid());
    int r=0;
    grid->setControl(0, r, new LabelControl("Chop"));
    grid->setControl(1, r, new HSliderControl(0, 3, 0, new Set<double>(s_settings.chop)));
    ++r;
    grid->setControl(0, r, new LabelControl("Sea State"));
    grid->setControl(1, r, new HSliderControl(0, 12, 5, new Set<double>(s_settings.seaState)));
    ++r;  
    grid->setControl(0, r, new LabelControl("Alpha"));
    grid->setControl(1, r, new HSliderControl(0, 1.0, 1.0, new Set<float>(s_settings.alpha)));
    ++r;
    grid->getControl(1, r-1)->setHorizFill(true,200);

    return box;
}

class TritonCallback : public osgEarth::Triton::Callback
{
public:
    void onInitialize(Environment& env, Ocean& ocean)
    {
        //todo
    }

    void onDrawOcean(Environment& env, Ocean& ocean)
    {
        s_settings.apply(env, ocean);
    }
};


int
usage(const char* name)
{
    OE_DEBUG
        << "\nUsage: " << name << " file.earth" << std::endl
        << osgEarth::Util::MapNodeHelper().usage() << std::endl;

    return 0;
}

int
main(int argc, char** argv)
{
    osg::ArgumentParser arguments(&argc,argv);

    // help?
    if ( arguments.read("--help") )
        return usage(argv[0]);

    // create a viewer:
    osgViewer::Viewer viewer(arguments);

    // Tell the database pager to not modify the unref settings
    viewer.getDatabasePager()->setUnrefImageDataAfterApplyPolicy( false, false );

    // install our default manipulator (do this before calling load)
    viewer.setCameraManipulator( new osgEarth::Util::EarthManipulator() );

    // load an earth file, and support all or our example command-line options
    // and earth file <external> tags   
    osg::Group* node = osgEarth::Util::MapNodeHelper().load(arguments, &viewer, createUI());
    if ( node )
    {        
        viewer.getCamera()->setNearFarRatio(0.00002);
        viewer.getCamera()->setSmallFeatureCullingPixelSize(-1.0f);

        viewer.setSceneData( node );

        MapNode* mapNode = MapNode::findMapNode( node );

        // Create TritonNode from TritonOptions
        osgEarth::Triton::TritonOptions tritonOptions;
        tritonOptions.user()        = "my_user_name";
        tritonOptions.licenseCode() = "my_license_code";
        tritonOptions.maxAltitude() = 10000;

liyihongcug

osgearth+triton终于通过在非qt环境下可以看到流畅海图，
但现在发现在QT环境下 无法正常浏览海图
1 qt下海图很不正常，经常一晃而过无法稳定留驻在视口上；
2  卡慢

上面都不是问题。最麻烦的是集成这个在rttpicker相机下的问题