本文整理汇总了C++中HeightMap::getColumnsNumber方法的典型用法代码示例。如果您正苦于以下问题：C++ HeightMap::getColumnsNumber方法的具体用法？C++ HeightMap::getColumnsNumber怎么用？C++ HeightMap::getColumnsNumber使用的例子？那么, 这里精选的方法代码示例或许可以为您提供帮助。您也可以进一步了解该方法所在类HeightMap的用法示例。
在下文中一共展示了HeightMap::getColumnsNumber方法的1个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于系统推荐出更棒的C++代码示例。
示例1: createMesh
void Scene::createMesh( const HeightMap& hmap,
set<Vector3D> &vertexes,
set<shared_ptr<Poly>> &triangles,
set<Vector3D> &normals )
{
Vector3D *vec[4];
Vector2D tex[4] = { Vector2D( 0, 0 ), Vector2D( 0, 1 ), Vector2D( 1, 0 ), Vector2D( 1, 1 ) }; // Текстурные координаты одинаковы для всех полигонов ( пополигонный тайлинг)
int max_i = hmap.getColumnsNumber();
int max_j = hmap.getRowsNumber();
for( int i = 0; i < max_i; i++ )
{
for( int j = 0; j < max_j; j++ )
{
HMPoint *pnt = hmap.getPoint(i, j);
if( pnt )
{
auto v1 = vertexes.insert( Vector3D( pnt->m_coord.x, m_ground, pnt->m_coord.y ) );
auto v2 = vertexes.insert( Vector3D( pnt->m_coord.x, pnt->m_height, pnt->m_coord.y ) );
auto v3 = vertexes.insert( Vector3D( pnt->m_coord.x+m_step, m_ground, pnt->m_coord.y ) );
auto v4 = vertexes.insert( Vector3D( pnt->m_coord.x+m_step, pnt->m_height, pnt->m_coord.y) );
auto v5 = vertexes.insert( Vector3D( pnt->m_coord.x, m_ground, pnt->m_coord.y+m_step ) );
auto v6 = vertexes.insert( Vector3D( pnt->m_coord.x, pnt->m_height, pnt->m_coord.y+m_step ) );
auto v7 = vertexes.insert( Vector3D( pnt->m_coord.x+m_step, m_ground, pnt->m_coord.y+m_step ) );
auto v8 = vertexes.insert( Vector3D( pnt->m_coord.x+m_step, pnt->m_height, pnt->m_coord.y+m_step ) );
vec[0] = const_cast<Vector3D*>( &(*v2.first) );
vec[1] = const_cast<Vector3D*>( &(*v6.first) );
vec[2] = const_cast<Vector3D*>( &(*v8.first) );
vec[3] = const_cast<Vector3D*>( &(*v4.first) );
auto norm = normals.insert( Vector3D( 0, 1, 0 ) );
shared_ptr<Poly> tri = shared_ptr<Poly>( new Poly( vec, tex, 4, &(*norm.first) ) );
triangles.insert( tri );
vec[0] = const_cast<Vector3D*>( &(*v1.first) );
vec[1] = const_cast<Vector3D*>( &(*v5.first) );
vec[2] = const_cast<Vector3D*>( &(*v7.first) );
vec[3] = const_cast<Vector3D*>( &(*v3.first) );
norm = normals.insert( Vector3D( 0, -1, 0 ) );
tri = shared_ptr<Poly>( new Poly( vec, tex, 4, &(*norm.first) ) );
triangles.insert( tri );
if( j>0 )
{
HMPoint *pntj1 = hmap.getPoint(i,j-1);
if( !pntj1 )
{
vec[0] = const_cast<Vector3D*>( &(*v1.first) );
vec[1] = const_cast<Vector3D*>( &(*v2.first) );
vec[2] = const_cast<Vector3D*>( &(*v4.first) );
vec[3] = const_cast<Vector3D*>( &(*v3.first) );
norm = normals.insert( Vector3D( 0, 0, -1 ) );
shared_ptr<Poly> tri( new Poly( vec, tex, 4, &(*norm.first) ) );
triangles.insert( tri );
}
else
{
//! Доборочная грань вниз
if( pnt->m_height > pntj1->m_height )
{
vec[0] = const_cast<Vector3D*>( &(*v2.first) );
vec[1] = const_cast<Vector3D*>( &(*v4.first) );
vec[2] = const_cast<Vector3D*>( &(*vertexes.find( Vector3D( vec[1]->x, pntj1->m_height, vec[1]->z ) ) ) );
vec[3] = const_cast<Vector3D*>( &(*vertexes.find( Vector3D( vec[0]->x, pntj1->m_height, vec[0]->z ) ) ) );
//! Нормаль смотрит вниз
norm = normals.insert( Vector3D(0, 0, -1) );
shared_ptr<Poly> tri( new Poly( vec, tex, 4, &(*norm.first) ) );
triangles.insert( tri );
}
if( pnt->m_height < pntj1->m_height)
{
vec[0] = const_cast<Vector3D*>( &(*v2.first) );
vec[1] = const_cast<Vector3D*>( &(*v4.first) );
vec[2] = const_cast<Vector3D*>( &(*vertexes.find( Vector3D( vec[1]->x, pntj1->m_height, vec[1]->z ) ) ) );
vec[3] = const_cast<Vector3D*>( &(*vertexes.find( Vector3D( vec[0]->x, pntj1->m_height, vec[0]->z ) ) ) );
//! Нормаль смотрит вверх
norm = normals.insert( Vector3D(0, 0, 1) );
shared_ptr<Poly> tri( new Poly( vec, tex, 4, &(*norm.first) ) );
triangles.insert( tri );
}
}
}
if ( i>0 )
{
HMPoint *pnti1 = hmap.getPoint(i-1,j);
if( !pnti1 )
{
vec[0] = const_cast<Vector3D*>( &(*v1.first) );
vec[1] = const_cast<Vector3D*>( &(*v2.first) );
vec[2] = const_cast<Vector3D*>( &(*v6.first) );
vec[3] = const_cast<Vector3D*>( &(*v5.first) );
norm = normals.insert( Vector3D(-1, 0, 0) );
shared_ptr<Poly> tri( new Poly( vec, tex, 4, &(*norm.first) ) );
triangles.insert( tri );
}
else
{
//! Доборочная грань влево
if( pnt->m_height > pnti1->m_height )
{
vec[0] = const_cast<Vector3D*>( &(*v2.first) );
//.........这里部分代码省略.........