Spherical.Shape.Parser Class Reference

With the rules of the Shape Grammar, turn the given specification into a Region object with its only public method. More...

List of all members.

Public Types
	Ok
	All is well, no error.
	errIllegalNumber
	The parsed token was not a number.
	errEol
	Premature end of line was reached.
	errNot2forRect
	There were other than 2 points specified for a RECT command.
	errNotenough4Poly
	There weren't at least 3 points for specifying a polygon or convex hull.
	errPolyBowtie
	The given polygon is either concave, or has self-intersecting edges.
	errPolyZeroLength
	The polygon specified contains edges of zero length (eg, from consecutive identical points).
	errChullTooBig
	The list of points for convex hull generation span a space larger than a hemisphere.
	errChullCoplanar
	The list of points for convex hull generation are all on the same great circle.
	errNullSpecification
	An empty string was given as a specification.
	errUnknown
	Some other error occured. Please call someone if this happens.
enum	Error {   Ok, errIllegalNumber, errEol, errNot2forRect, errNotenough4Poly, errPolyBowtie, errPolyZeroLength, errChullTooBig,   errChullCoplanar, errNullSpecification, errUnknown }
	Descibes the Spherical Shape Parser error. More...
Public Member Functions
	Parser (string in_spec)
	Create an instance of a shape parser with a specification.
Static Public Member Functions
static string	errmsg (Error errno)
	Turns a Parser.Error argument into a textual description.
static List< double >	extract (String textSpec)
	Extracts all the points from a convex hull specification.
static Region	compile (String textSpec)
	Compile a text description of a region into a new Region object.

---

Detailed Description

With the rules of the Shape Grammar, turn the given specification into a Region object with its only public method.

---

Member Enumeration Documentation

enum Spherical::Shape::Parser::Error

Descibes the Spherical Shape Parser error.

Enumerator:

Ok	All is well, no error.
errIllegalNumber	The parsed token was not a number.
errEol	Premature end of line was reached.
errNot2forRect	There were other than 2 points specified for a RECT command.
errNotenough4Poly	There weren't at least 3 points for specifying a polygon or convex hull.
errPolyBowtie	The given polygon is either concave, or has self-intersecting edges.
errPolyZeroLength	The polygon specified contains edges of zero length (eg, from consecutive identical points).
errChullTooBig	The list of points for convex hull generation span a space larger than a hemisphere.
errChullCoplanar	The list of points for convex hull generation are all on the same great circle.
errNullSpecification	An empty string was given as a specification.
errUnknown	Some other error occured. Please call someone if this happens.

---

Constructor & Destructor Documentation

Spherical.Shape.Parser.Parser

(

string

in_spec

)

Create an instance of a shape parser with a specification.

Parsing occurs when parse() is invoked.

Parameters:

in_spec

a valid shape specification

---

Member Function Documentation

static Region Spherical.Shape.Parser.compile

(

String

textSpec

)

[static]

Compile a text description of a region into a new Region object.

The Shape Grammar is given in these specification. If there is an error in the specification, compile will throw a ParserException with an appropriate text message, and and internal Parser.Error variable.

Parameters:

textSpec

Returns:

static string Spherical.Shape.Parser.errmsg

(

Error

errno

)

[static]

Turns a Parser.Error argument into a textual description.

Parameters:

errno

Returns:

string containing text of description

static List<double> Spherical.Shape.Parser.extract

(

String

textSpec

)

[static]

Extracts all the points from a convex hull specification.

Parameters:

textSpec

Returns:

a linear array of x, y, z values

---

The documentation for this class was generated from the following file:

• Parser.cs

---