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Object common:Generic common:MappingShape
class
MappingShape base class.
MappingShape represents a shape in 3D space with a texture (usually a fractal) mapped on it. It provides the GetTextureCoordinates function which can be called to obtain the intersection point of the shape and a given line, and the texture coordinates at that point.
MappingShape uses the lefthanded coordinate system, where X points to the
right, Y points up, and Z points into the screen. To determine the direction
of a rotation, hold your left hand such that your thumb points into the
direction of the axis around which the rotation takes place, and then your
curled fingers point into the direction of positive rotation.
class MappingShape(Generic) { ; MappingShape base class. ; <p> ; MappingShape represents a shape in 3D space with a texture (usually a ; fractal) mapped on it. It provides the GetTextureCoordinates function which ; can be called to obtain the intersection point of the shape and a given line, ; and the texture coordinates at that point. ; <p> ; MappingShape uses the lefthanded coordinate system, where X points to the ; right, Y points up, and Z points into the screen. To determine the direction ; of a rotation, hold your left hand such that your thumb points into the ; direction of the axis around which the rotation takes place, and then your ; curled fingers point into the direction of positive rotation. public: ; GetTextureCoordinates tests a ray against the mapping shape. If the ray ; intersects the shape, it returns true, and returns the coordinates of the ; point on the shape that intersects the ray in the result argument. If the ; shape does not intersect the ray, returns false. ; <p> ; A concrete shape descendant should override this function to define the ; mapping shape. ; <p> ; The ray is defined as:<br> ; [ sx ] [ dx ]<br> ; [ sy ] + lambda [ dy ]<br> ; [ sz ] [ dz ] ; ; @param sx X coordinate of point in space that the ray passes through. ; @param sy Y coordinate of point in space that the ray passes through. ; @param sz Z coordinate of point in space that the ray passes through. ; @param dx Relative movement of the line along the X axis. ; @param dy Relative movement of the line along the Y axis. ; @param dz Relative movement of the line along the Z axis. ; @param result Receives the texture coordinates if the function returns true. ; @return True if the ray intersects the shape, false otherwise. bool func GetTextureCoordinates(float sx, float sy, float sz, float dx, \ float dy, float dz, complex &result) return false endfunc default: int param v_mappingshape caption = "Version (MappingShape)" default = 100 hint = "This version parameter is used to detect when a change has been made to the formula that is incompatible with the previous version. When that happens, this field will reflect the old version number to alert you to the fact that an alternate rendering is being used." visible = @v_mappingshape < 100 endparam }
Constructor Summary  

MappingShape()

Method Summary  

boolean 
GetTextureCoordinates(float sx,
float sy,
float sz,
float dx,
float dy,
float dz,
complex result)
GetTextureCoordinates tests a ray against the mapping shape. 
Methods inherited from class common:Generic 

GetParent 
Methods inherited from class Object 


Constructor Detail 

public MappingShape()
Method Detail 

public boolean GetTextureCoordinates(float sx, float sy, float sz, float dx, float dy, float dz, complex result)
A concrete shape descendant should override this function to define the mapping shape.
The ray is defined as:
[ sx ] [ dx ]
[ sy ] + lambda [ dy ]
[ sz ] [ dz ]
sx
 X coordinate of point in space that the ray passes through.sy
 Y coordinate of point in space that the ray passes through.sz
 Z coordinate of point in space that the ray passes through.dx
 Relative movement of the line along the X axis.dy
 Relative movement of the line along the Y axis.dz
 Relative movement of the line along the Z axis.result
 Receives the texture coordinates if the function returns true.


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