Files
ResInsight/Fwk/VizFwk/Tests/SnippetsBasis/snipGeometryCreation.cpp
sigurdp bbebebadd5 Added complete VizFwk
Added the complete VizFwk from the ResInsight branch in Perforce as of
changelist 190.
2013-11-01 08:49:42 +01:00

283 lines
9.1 KiB
C++

//##################################################################################################
//
// Custom Visualization Core library
// Copyright (C) 2011-2013 Ceetron AS
//
// This library may be used under the terms of either the GNU General Public License or
// the GNU Lesser General Public License as follows:
//
// GNU General Public License Usage
// This library is free software: you can redistribute it and/or modify
// it under the terms of the GNU General Public License as published by
// the Free Software Foundation, either version 3 of the License, or
// (at your option) any later version.
//
// This library is distributed in the hope that it will be useful, but WITHOUT ANY
// WARRANTY; without even the implied warranty of MERCHANTABILITY or
// FITNESS FOR A PARTICULAR PURPOSE.
//
// See the GNU General Public License at <<http://www.gnu.org/licenses/gpl.html>>
// for more details.
//
// GNU Lesser General Public License Usage
// This library is free software; you can redistribute it and/or modify
// it under the terms of the GNU Lesser General Public License as published by
// the Free Software Foundation; either version 2.1 of the License, or
// (at your option) any later version.
//
// This library is distributed in the hope that it will be useful, but WITHOUT ANY
// WARRANTY; without even the implied warranty of MERCHANTABILITY or
// FITNESS FOR A PARTICULAR PURPOSE.
//
// See the GNU Lesser General Public License at <<http://www.gnu.org/licenses/lgpl-2.1.html>>
// for more details.
//
//##################################################################################################
#include "cvfLibCore.h"
#include "cvfLibGeometry.h"
#include "cvfLibRender.h"
#include "cvfLibViewing.h"
#include "cvfuInputEvents.h"
#include "snipGeometryCreation.h"
namespace snip {
//--------------------------------------------------------------------------------------------------
///
//--------------------------------------------------------------------------------------------------
bool GeometryCreation::onInitialize()
{
ref<ModelBasicList> myModel = new ModelBasicList;
// Simple patch
{
GeometryBuilderFaceList builder;
GeometryUtils::createPatch(Vec3f(10, 0, 0), Vec3f::X_AXIS, Vec3f::Y_AXIS, 6, 4, &builder);
myModel->addPart(createPartFromBuilder(builder, Color3f::GREEN).p());
}
// Patch(es) using generator
{
PatchGenerator gen;
gen.setOrigin(Vec3d(10, 5, 0));
gen.setExtent(6, 4);
gen.setSubdivisions(6, 4);
{
GeometryBuilderFaceList builder;
gen.generate(&builder);
myModel->addPart(createPartFromBuilder(builder, Color3f::GREEN).p());
}
gen.setOrigin(Vec3d(10, 5, -1));
gen.setQuads(false);
gen.setWindingCCW(false);
{
GeometryBuilderFaceList builder;
gen.generate(&builder);
myModel->addPart(createPartFromBuilder(builder, Color3f::GREEN).p());
}
}
// Patch with non perpendicular axes
{
PatchGenerator gen;
gen.setAxes(Vec3d(1, 0, 0).getNormalized(), Vec3d(-1, 1, 0).getNormalized());
gen.setOrigin(Vec3d(10, 10, 0));
gen.setExtent(6, 4);
gen.setSubdivisions(6, 4);
{
GeometryBuilderFaceList builder;
gen.generate(&builder);
myModel->addPart(createPartFromBuilder(builder, Color3f::GREEN).p());
}
}
// Simple boxes
{
GeometryBuilderFaceList builder;
GeometryUtils::createBox(Vec3f(4, -1, 0), Vec3f(8, 3, 4), &builder);
myModel->addPart(createPartFromBuilder(builder, Color3f::BLUE).p());
}
// Box with subdivisions
{
BoxGenerator gen;
gen.setMinMax(Vec3d(4, 4, 0), Vec3d(8, 8, 4));
gen.setSubdivisions(2, 4, 6);
GeometryBuilderFaceList builder;
gen.generate(&builder);
myModel->addPart(createPartFromBuilder(builder, Color3f::BLUE).p());
}
// Sphere
{
GeometryBuilderFaceList builder;
GeometryUtils::createSphere(2, 20, 20, &builder);
myModel->addPart(createPartFromBuilder(builder, Color3f::DARK_RED).p());
}
// Sphere without shared nodes (flat shading)
{
GeometryBuilderDrawableGeo builder;
GeometryUtils::createSphere(2, 20, 20, &builder);
builder.transformVertexRange(0, builder.vertexCount() - 1, Mat4f::fromTranslation(Vec3f(0, 5, 0)));
ref<DrawableGeo> geo = createGeoWitoutSharedNodes(builder.drawableGeo().p());
geo->computeNormals();
ref<Effect> eff = new Effect;
eff->setRenderState(new RenderStateMaterial_FF(Color3f::DARK_RED));
ref<Part> part = new Part;
part->setDrawable(geo.p());
part->setEffect(eff.p());
myModel->addPart(part.p());
}
myModel->updateBoundingBoxesRecursive();
m_renderSequence->rendering(0)->scene()->addModel(myModel.p());
BoundingBox bb = myModel->boundingBox();
if (bb.isValid())
{
m_camera->fitView(bb, -Vec3d::Z_AXIS, Vec3d::Y_AXIS);
}
m_renderSequence->firstRendering()->addOverlayItem(new OverlayAxisCross(m_camera.p(), new FixedAtlasFont(FixedAtlasFont::STANDARD)));
addEdgesRendering();
return true;
}
//--------------------------------------------------------------------------------------------------
///
//--------------------------------------------------------------------------------------------------
void GeometryCreation::onKeyPressEvent(KeyEvent* keyEvent)
{
Key key = keyEvent->key();
char character = keyEvent->character();
if (key == Key_M)
{
bool edgesOn = (character == 'm') ? true : false;
if (edgesOn)
{
if (m_renderSequence->renderingCount() == 1)
{
addEdgesRendering();
}
}
else
{
if (m_renderSequence->renderingCount() == 2)
{
Rendering* renderingToRemove = m_renderSequence->rendering(1);
m_renderSequence->removeRendering(renderingToRemove);
}
}
}
keyEvent->setRequestedAction(REDRAW);
}
//--------------------------------------------------------------------------------------------------
///
//--------------------------------------------------------------------------------------------------
void GeometryCreation::addEdgesRendering()
{
ref<RenderStatePolygonOffset> polyOffset = new RenderStatePolygonOffset;
polyOffset->configureLineNegativeOffset();
ref<Effect> lineEffect = new Effect;
lineEffect->setRenderState(new RenderStatePolygonMode(RenderStatePolygonMode::LINE));
lineEffect->setRenderState(polyOffset.p());
lineEffect->setRenderState(new RenderStateDepth(true, RenderStateDepth::LEQUAL));
ref<RenderStateMaterial_FF> lineMat = new RenderStateMaterial_FF;
lineMat->setAmbientAndDiffuse(Color3f::WHITE);
lineEffect->setRenderState(lineMat.p());
lineEffect->setRenderState(new RenderStateLighting_FF(false));
ref<Rendering> newRendering = new Rendering;
newRendering->setCamera(m_camera.p());
newRendering->setEffectOverride(lineEffect.p());
newRendering->setScene(m_renderSequence->rendering(0)->scene());
newRendering->setClearMode(Viewport::DO_NOT_CLEAR);
m_renderSequence->addRendering(newRendering.p());
}
//--------------------------------------------------------------------------------------------------
///
//--------------------------------------------------------------------------------------------------
ref<Part> GeometryCreation::createPartFromBuilder(const GeometryBuilderFaceList& builder, const Color3f& color)
{
ref<DrawableGeo> geo = new DrawableGeo;
ref<Vec3fArray> vertices = builder.vertices();
ref<UIntArray> faceList = builder.faceList();
geo->setVertexArray(vertices.p());
geo->setFromFaceList(*faceList);
geo->computeNormals();
ref<Part> part = new Part;
part->setDrawable(geo.p());
ref<Effect> eff = new Effect;
eff->setRenderState(new RenderStateMaterial_FF(color));
part->setEffect(eff.p());
return part;
}
//--------------------------------------------------------------------------------------------------
///
//--------------------------------------------------------------------------------------------------
ref<DrawableGeo> GeometryCreation::createGeoWitoutSharedNodes(const DrawableGeo* srcGeo)
{
size_t numFaces = srcGeo->faceCount();
const Vec3fArray* srcVertices = srcGeo->vertexArray();
GeometryBuilderDrawableGeo builder;
UIntArray faceIndices;
size_t i;
for (i = 0; i < numFaces; i++)
{
srcGeo->getFaceIndices(i, &faceIndices);
if (faceIndices.size() == 3)
{
builder.addTriangleByVertices(srcVertices->get(faceIndices[0]), srcVertices->get(faceIndices[1]), srcVertices->get(faceIndices[2]));
}
else if (faceIndices.size() == 4)
{
builder.addQuadByVertices(srcVertices->get(faceIndices[0]), srcVertices->get(faceIndices[1]), srcVertices->get(faceIndices[2]), srcVertices->get(faceIndices[3]));
}
}
return builder.drawableGeo();
}
} // namespace snip