Transformation operator. More...
#include <archestree.h>
Inheritance diagram for TerraTransform:
Public Member Functions | |
| TerraTransform (TerraNode *, const Frame2 &) | |
| Create a transformation node. More... | |
| TerraTransform (TerraNode *, const Linear &, const Vector2 &=Vector(1.0), const Frame2 &=Frame2::Id) | |
| Create a transformation node. More... | |
| ~TerraTransform () | |
| Recursively destroys the sub-tree. | |
| ScalarAlpha | ElevationAlpha (const Vector2 &) const |
| Compute the elevation and weight. More... | |
| virtual int | Memory () const |
| Compute the size of a node. More... | |
 Public Member Functions inherited from TerraUnary | |
| TerraUnary (TerraNode *) | |
| Create an unary node. More... | |
| ~TerraUnary () | |
| Recusively destroy the sub-tree. | |
| virtual 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 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. | |
| 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 | |
| Vector2 | scale |
| Horizontal scaling. | |
| Frame2 | frame |
| Frame. | |
| Linear | zscale |
| Linear transformation. | |
| Protected Attributes inherited from TerraUnary | |
| TerraNode * | node = nullptr |
| Sub-tree. | |
| Protected Attributes inherited from TerraNode | |
| Box2 | box = Box2::Infinity |
| Bounding box. | |
Additional Inherited Members | |
| Static Public Member Functions inherited from TerraUnary | |
| static TerraNode * | PutAt (TerraNode *, const Vector &, const double &, const Vector2 &) |
| Place a node at a given location. More... | |
| static TerraNode * | PutAt (TerraNode *, const double &, const Vector2 &) |
| Place a node at a given location. More... | |
| Static Protected Attributes inherited from TerraNode | |
| static const double | epsilon = 1e-2 |
| Epsilon value for gradient computations. | |
Detailed Description
Transformation operator.
Constructor & Destructor Documentation
◆ TerraTransform() [1/2]
◆ TerraTransform() [2/2]
|
explicit |
Create a transformation node.
- Parameters
-
n Sub-tree. s Scaling. f Frame.
References TerraNode::box, frame, TerraNode::GetBox(), TerraUnary::node, scale, Box2::Scaled(), and zscale.
Member Function Documentation
◆ ElevationAlpha()
|
virtual |
Compute the elevation and weight.
- Parameters
-
p Point.
Implements TerraUnary.
References ScalarAlpha::Alpha(), TerraNode::box, TerraNode::ElevationAlpha(), ScalarAlpha::Empty, frame, Box2::Inside(), Frame2::InverseTransform(), TerraUnary::node, scale, Vector2::Scaled(), ScalarAlpha::Value(), and zscale.
◆ Memory()
|
virtual |
Compute the size of a node.
Reimplemented from TerraUnary.
References TerraNode::Memory(), TerraUnary::node, and TerraTransform().
