This class implements a cubic curve skeleton function. More...
#include <archestree.h>
Inheritance diagram for TerraQuadricCurveSet:
Public Member Functions | |
| TerraQuadricCurveSet (const QuadricCurve2Set &curve, const double &radius, const double &radius_external, const double &z) | |
| Create a quadric curve skeleton. More... | |
| ScalarAlpha | Value (const Vector2 &) const |
| Elevation. More... | |
 Public Member Functions inherited from TerraSkeleton | |
| TerraSkeleton (const double &, const double &) | |
| Create a primitive with a radial falloff function. More... | |
| double | Alpha (const double &) const |
| Compute the falloff function. More... | |
| Public Member Functions inherited from TerraPrimitive | |
| TerraPrimitive () | |
| Create a primitive. | |
| ~TerraPrimitive () | |
| Recusively destroy the sub-trees. | |
| int | Traversal (const Vector2 &) const |
| Compute the number of nodes that are traversed when evaluating the tree. More... | |
| Public Member Functions inherited from TerraNode | |
| TerraNode (const Box2 &=Box2::Infinity) | |
| Create a node. More... | |
| virtual Box2 | GetBox () const |
| Returns the bouding box of a node. | |
| virtual ScalarAlpha | ElevationAlpha (const Vector2 &) const |
| Compute the elevation and weight. More... | |
| virtual double | Elevation (const Vector2 &) const |
| Compute the elevation at a given position. More... | |
| virtual double | Alpha (const Vector2 &) const |
| Compute the alpha mask at a given position. More... | |
| virtual Vector2 | Gradient (const Vector2 &) const |
| Compute the gradient at a given position. More... | |
| virtual Vector | Normal (const Vector2 &) const |
| Compute the normal at a given position. More... | |
| virtual void | writeJson (QJsonObject &) |
| Compute the Json Document of the subtree. | |
| virtual int | Memory () const |
| Compute the size of a node. | |
| ScalarField2 | Sample (const Array2 &) const |
| Create a discrete scalar field by sampling the elevation over a given domain. More... | |
| ScalarField2 | Alpha (const Array2 &) const |
| Create a discrete scalar field by sampling the elevation over a given domain. More... | |
| void | Blend (HeightField &) const |
| Blend a given node with an existing terrain over an input heightfield. More... | |
| void | Add (HeightField &) const |
| Add a given node with an existing heightfield. More... | |
| virtual void | Draw (QGraphicsScene &) const |
| Renders the node into a QGraphicsScene. More... | |
Protected Attributes | |
| QuadricCurve2Set | c |
| 2D Curve footprint (at more than distance == not defined) | |
| Protected Attributes inherited from TerraSkeleton | |
| double | alpha |
| Weight. | |
| Protected Attributes inherited from TerraNode | |
| Box2 | box = Box2::Infinity |
| Bounding box. | |
Additional Inherited Members | |
| Static Protected Attributes inherited from TerraNode | |
| static const double | epsilon = 1e-2 |
| Epsilon value for gradient computations. | |
Detailed Description
This class implements a cubic curve skeleton function.
Constructor & Destructor Documentation
◆ TerraQuadricCurveSet()
| TerraQuadricCurveSet::TerraQuadricCurveSet | ( | const QuadricCurve2Set & | curve, |
| const double & | radius, | ||
| const double & | radius_external, | ||
| const double & | z | ||
| ) |
Create a quadric curve skeleton.
- Parameters
-
curve Piecewise quadric Curve.
References TerraNode::box, c, Box2::Extended(), and QuadricCurve2Set::GetBox().
Member Function Documentation
◆ Value()
| ScalarAlpha TerraQuadricCurveSet::Value | ( | const Vector2 & | p | ) | const |
Elevation.
- Parameters
-
p Point.
References TerraSkeleton::Alpha(), TerraNode::box, c, Box2::Inside(), and QuadricCurve2Set::R().
