Example: Golden spiral More...
Public Member Functions | |
GoldenSpiral (const Options &opt) | |
Actual model. | |
GoldenSpiral (GoldenSpiral &p) | |
Constructor for cloning p. | |
virtual Space * | copy (void) |
Copy during cloning. | |
virtual FloatVar | cost (void) const |
Cost function. | |
virtual void | print (std::ostream &os) const |
Print solution coordinates. | |
Public Member Functions inherited from Gecode::Driver::ScriptBase< Driver::ExtractStepOption< FloatMaximizeSpace > > | |
ScriptBase (const Options &opt) | |
Constructor. | |
ScriptBase (ScriptBase &e) | |
Constructor used for cloning. | |
virtual void | compare (const Space &home, std::ostream &os) const |
Compare with s. | |
Public Member Functions inherited from Gecode::Driver::ExtractStepOption< BaseSpace > | |
ExtractStepOption (const Options &opt) | |
Constructor that extracts the step value. | |
ExtractStepOption (BaseSpace &e) | |
Constructor used for cloning. |
Protected Attributes | |
FloatVarArray | f |
The numbers. |
Related Symbols | |
(Note that these are not member symbols.) | |
int | main (int argc, char *argv[]) |
Main-function. |
Additional Inherited Members | |
Static Public Member Functions inherited from Gecode::Driver::ScriptBase< Driver::ExtractStepOption< FloatMaximizeSpace > > | |
static std::ostream & | select_ostream (const char *sn, std::ofstream &ofs) |
Choose output stream according to sn. | |
static void | run (const Options &opt, Script *s=NULL) |
Example: Golden spiral
The Golden Spiral is a logarithmic spiral whose growth factor is the golden ratio
It is defined by the polar equation:
where
To get cartesian coordinates, it can be solved for
with
The tuple
To get reasonable interval starting sizes,
Definition at line 77 of file golden-spiral.cpp.
|
inline |
Actual model.
Definition at line 83 of file golden-spiral.cpp.
|
inline |
Constructor for cloning p.
Definition at line 99 of file golden-spiral.cpp.
|
inlinevirtual |
Copy during cloning.
Definition at line 104 of file golden-spiral.cpp.
|
inlinevirtual |
Cost function.
Definition at line 108 of file golden-spiral.cpp.
|
inlinevirtual |
Print solution coordinates.
Reimplemented from Gecode::Driver::ScriptBase< Driver::ExtractStepOption< FloatMaximizeSpace > >.
Definition at line 112 of file golden-spiral.cpp.
|
Main-function.
Definition at line 122 of file golden-spiral.cpp.
|
protected |
The numbers.
Definition at line 80 of file golden-spiral.cpp.