125 lines
3.9 KiB
C++
125 lines
3.9 KiB
C++
/* -*-c++-*- OpenSceneGraph - Copyright (C) 1998-2006 Robert Osfield
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*
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* This library is open source and may be redistributed and/or modified under
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* the terms of the OpenSceneGraph Public License (OSGPL) version 0.0 or
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* (at your option) any later version. The full license is in LICENSE file
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* included with this distribution, and on the openscenegraph.org website.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* OpenSceneGraph Public License for more details.
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*/
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//osgManipulator - Copyright (C) 2007 Fugro-Jason B.V.
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#include <osgManipulator/ScaleAxisDragger>
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#include <osg/ShapeDrawable>
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#include <osg/Geometry>
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#include <osg/LineWidth>
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#include <osg/Quat>
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using namespace osgManipulator;
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ScaleAxisDragger::ScaleAxisDragger()
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{
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_xDragger = new osgManipulator::Scale1DDragger();
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addChild(_xDragger.get());
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addDragger(_xDragger.get());
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_yDragger = new osgManipulator::Scale1DDragger();
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addChild(_yDragger.get());
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addDragger(_yDragger.get());
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_zDragger = new osgManipulator::Scale1DDragger();
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addChild(_zDragger.get());
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addDragger(_zDragger.get());
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_axisLineWidth = 2.0f;
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_boxSize = 0.05f;
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setParentDragger(getParentDragger());
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}
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ScaleAxisDragger::~ScaleAxisDragger()
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{
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}
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void ScaleAxisDragger::setupDefaultGeometry()
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{
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// Create a line.
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_lineGeode = new osg::Geode;
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{
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osg::Geometry* geometry = new osg::Geometry();
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osg::Vec3Array* vertices = new osg::Vec3Array(2);
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(*vertices)[0] = osg::Vec3(0.0f,0.0f,0.0f);
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(*vertices)[1] = osg::Vec3(1.0f,0.0f,0.0f);
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geometry->setVertexArray(vertices);
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geometry->addPrimitiveSet(new osg::DrawArrays(osg::PrimitiveSet::LINES,0,2));
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_lineGeode->addDrawable(geometry);
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}
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// Turn of lighting for line and set line width.
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{
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_lineWidth = new osg::LineWidth();
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_lineWidth->setWidth(_axisLineWidth);
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_lineGeode->getOrCreateStateSet()->setAttributeAndModes(_lineWidth.get(), osg::StateAttribute::ON);
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_lineGeode->getOrCreateStateSet()->setMode(GL_LIGHTING,osg::StateAttribute::OFF);
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}
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// Add line to all the individual 1D draggers.
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_xDragger->addChild(_lineGeode.get());
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_yDragger->addChild(_lineGeode.get());
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_zDragger->addChild(_lineGeode.get());
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osg::Geode* geode = new osg::Geode;
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// Create a box.
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_box = new osg::Box(osg::Vec3(1.0f,0.0f,0.0f), _boxSize);
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geode->addDrawable(new osg::ShapeDrawable(_box.get()));
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// This ensures correct lighting for scaled draggers.
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#if !defined(OSG_GLES2_AVAILABLE)
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geode->getOrCreateStateSet()->setMode(GL_NORMALIZE, osg::StateAttribute::ON);
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#endif
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// Add geode to all 1D draggers.
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_xDragger->addChild(geode);
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_yDragger->addChild(geode);
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_zDragger->addChild(geode);
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// Rotate Z-axis dragger appropriately.
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{
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osg::Quat rotation; rotation.makeRotate(osg::Vec3(1.0f, 0.0f, 0.0f), osg::Vec3(0.0f, 0.0f, 1.0f));
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_zDragger->setMatrix(osg::Matrix(rotation));
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}
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// Rotate Y-axis dragger appropriately.
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{
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osg::Quat rotation; rotation.makeRotate(osg::Vec3(1.0f, 0.0f, 0.0f), osg::Vec3(0.0f, 1.0f, 0.0f));
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_yDragger->setMatrix(osg::Matrix(rotation));
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}
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// Send different colors for each dragger.
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_xDragger->setColor(osg::Vec4(1.0f,0.0f,0.0f,1.0f));
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_yDragger->setColor(osg::Vec4(0.0f,1.0f,0.0f,1.0f));
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_zDragger->setColor(osg::Vec4(0.0f,0.0f,1.0f,1.0f));
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}
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void ScaleAxisDragger::setAxisLineWidth(float linePixelWidth)
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{
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_axisLineWidth = linePixelWidth;
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if (_lineWidth.valid())
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_lineWidth->setWidth(linePixelWidth);
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}
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void ScaleAxisDragger::setBoxSize(float size)
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{
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_boxSize = size;
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if (_box.valid())
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_box->setHalfLengths(osg::Vec3(size * 0.5f, size * 0.5f, size * 0.5f));
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}
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