Hi, Iam using the following code and drawing the lines in osg and clamping the
lines to the terrain for the purpose of road drawing
LineSymbol* line = style.getOrCreate<LineSymbol>();
line->stroke()->color() = Color(Color::Black, 0.5f);
line->stroke()->width() = 8.0f;
line->tessellationSize() = 5;
line->stroke()->widthUnits() = Units::METERS;
AltitudeSymbol* alt = style.getOrCreate<AltitudeSymbol>();
alt->clamping() = alt->CLAMP_TO_TERRAIN;
But for me i want road with texture so what iam
adding the quad and applying texture in the below code
osg::ref_ptr<osg::Vec3Array> vertices = new osg::Vec3Array;
vertices->push_back(osg::Vec3(-1.0f,0.0f,-2.0f));
vertices->push_back(osg::Vec3(1.0f,0.0f,-2.0f));
vertices->push_back(osg::Vec3(1.0f,0.0f,2.0f));
vertices->push_back(osg::Vec3(-1.0f,0.0f,2.0f));
osg::ref_ptr<osg::Vec3Array> normals = new osg::Vec3Array;
normals->push_back(osg::Vec3(0.0f,-1.0f,0.0f));
osg::ref_ptr<osg::Vec4Array> colors = new osg::Vec4Array;
colors->push_back(osg::Vec4(0.0f, 0.0f, 0.0f,0.0f));
osg::ref_ptr<osg::Vec2Array> texcoords = new osg::Vec2Array;
texcoords->push_back(osg::Vec2(0.0f, 0.0f));
texcoords->push_back(osg::Vec2(0.0f, 1.0f));
texcoords->push_back(osg::Vec2(1.0f, 1.0f));
texcoords->push_back(osg::Vec2(1.0f, 0.0f));
osg::ref_ptr<osg::Geometry> geom = new osg::Geometry;
geom->setVertexArray(vertices.get());
geom->setNormalArray(normals.get());
geom->setColorArray(colors.get());
geom->setNormalBinding(osg::Geometry::BIND_OVERALL);
geom->setTexCoordArray(0,texcoords.get());
geom->setColorBinding(osg::Geometry::BIND_OVERALL);
geom->addPrimitiveSet(new osg::DrawArrays(GL_QUADS,0,4));
osg::ref_ptr<osg::Texture2D> texture = new osg::Texture2D;
texture->setWrap(osg::Texture2D::WRAP_S,
osg::Texture2D::CLAMP);
texture->setWrap(osg::Texture2D::WRAP_T,
osg::Texture2D::CLAMP);
osg::ref_ptr<osg::Image> image =
osgDB::readImageFile("D:/Images/roadPic.jpg");
texture->setImage(image);
osg::ref_ptr<osg::Geode> root = new osg::Geode;
root->addDrawable(geom.get());
root->getOrCreateStateSet()->setTextureAttributeAndModes(0,texture.get());
how to clamp the quad to the terrain for drawing the road in osgearth or any
other way to add the texture to those lines?
...
Thank you!
Cheers,
Rambabu
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http://forum.openscenegraph.org/viewtopic.php?p=70781#70781
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