PointChain2D Struct Reference

Chain of points in 2D (polygone), scope: Grid2D. More...

#include <aigrid.h>

List of all members.

Public Member Functions
	PointChain2D ()
	default constructor
	PointChain2D (AI_Sign_Enum type, PointChain2D pc)
	Build by existing PointChain2D.
	PointChain2D (AI_Base_Enum baseType, Blade2D blade, DispoHypParam dhp, double par0, double par1)
	Build by Blade2D.
	PointChain2D (AI_Chain_Enum chainType, AI_Sign_Enum dir0, PointChain2D pc0, AI_Sign_Enum dir1, PointChain2D pc1)
	Build by chaining of point chains using AI_Chain2.
	PointChain2D (AI_Chain_Enum chainType, AI_Sign_Enum dir0, PointChain2D pc0, AI_Sign_Enum dir1, PointChain2D pc1, AI_Sign_Enum dir2, PointChain2D pc2)
	Build by chaining of point chains using AI_Chain3, see similar constructor using AI_Chain2.
	PointChain2D (AI_Chain_Enum chainType, AI_Sign_Enum dir0, PointChain2D pc0, AI_Sign_Enum dir1, PointChain2D pc1, AI_Sign_Enum dir2, PointChain2D pc2, AI_Sign_Enum dir3, PointChain2D pc3)
	Build by chaining of point chains using AI_Chain4, see similar constructor using AI_Chain2.
	PointChain2D (AI_Chain_Enum chainType, AI_Sign_Enum dir0, PointChain2D pc0, AI_Sign_Enum dir1, PointChain2D pc1, AI_Sign_Enum dir2, PointChain2D pc2, AI_Sign_Enum dir3, PointChain2D pc3, AI_Sign_Enum dir4, PointChain2D pc4)
	Build by chaining of point chains using AI_Chain5, see similar constructor using AI_Chain2.
	PointChain2D (AI_Bez_Enum bezType, DispoHypParam dhp, Vec2D pos0, Vec2D pos1)
	Build by simple bezier base on points using AI_Bez2 or AI_LinBez2.
	PointChain2D (AI_Bez_Enum bezType, DispoHypParam dhp, Vec2D pos0, Vec2D pos1, Vec2D pos2)
	Build by simple bezier base on points using AI_Bez3 or AI_LinBez3, see similar constructor using AI_Bez2.
	PointChain2D (AI_Bez_Enum bezType, DispoHypParam dhp, Vec2D pos0, Vec2D pos1, Vec2D pos2, Vec2D pos3)
	Build by simple bezier base on points using AI_Bez4 or AI_LinBez4, see similar constructor using AI_Bez2.
	PointChain2D (AI_Extract_Enum type, PointChain2D pc, int index0, int index1)
	Build by extracting from an existing PointChain2D.
	PointChain2D (AI_Transpose_Enum type, PointChain2D pc, Vec2D vec)
	Build by transposing an existing PointChain2D.
	PointChain2D (AI_Abeam_Enum type, PointChain2D pc, double dist)
	Build by transposing an existing PointChain2D normal (left) to local line direction.
Vec2D	Vec2DByIndex (int index)
	Position at node index.
Vec2D	NormVec2DByIndex (int index)
	Unity vector normal to point chain at node index.
void	Append (AI_Sign_Enum dir, PointChain2D ptChExt)
	Append a point chain.

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Detailed Description

Chain of points in 2D (polygone), scope: Grid2D.

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Constructor & Destructor Documentation

PointChain2D::PointChain2D (  AI_Sign_Enum  type, PointChain2D  pc )

Build by existing PointChain2D. Parameters: type  AI_Pos direct copy, AI_Neg reverse direction pc  base pointchain

PointChain2D::PointChain2D (  AI_Base_Enum  baseType, Blade2D  blade, DispoHypParam  dhp, double  par0, double  par1 )

Build by Blade2D. Parameters: baseType  is AI_BladeBase blade  is the blade to be basis dhp  includes hyperbolic disposition of points and number of line segments par0  start parameter on blade par1  end parameter on blade

PointChain2D::PointChain2D (  AI_Chain_Enum  chainType, AI_Sign_Enum  dir0, PointChain2D  pc0, AI_Sign_Enum  dir1, PointChain2D  pc1 )

Build by chaining of point chains using AI_Chain2. Parameters: chainType  marks number of pointChains to be chained, set to AI_Chain2 dir0  index direction of first base pointchain pc0  first base pointchain dir1  index direction of second base pointchain pc1  second base pointchain Consider alternative similar constructions using AI_Chain3 ,AI_Chain4, AI_Chain5

PointChain2D::PointChain2D (  AI_Bez_Enum  bezType, DispoHypParam  dhp, Vec2D  pos0, Vec2D  pos1 )

Build by simple bezier base on points using AI_Bez2 or AI_LinBez2. Parameters: bezType  marks number of base points, set to AI_Bez2 or AI_LinBez2 dhp  includes hyperbolic disposition of points and number of line segments pos0  first point pos1  second point Consider alternative similar constructions using AI_Bez3 ,AI_Bez4, AI_LinBez3, AI_LinBez4 For the 'AI_Bez..' the dhp is applied on the nondimensional bezier length parameter For the 'AI_LinBez..' the dhp is applied on the nondimensional line-length

PointChain2D::PointChain2D (  AI_Extract_Enum  type, PointChain2D  pc, int  index0, int  index1 )

Build by extracting from an existing PointChain2D. Parameters: type  set to AI_Extract pc  base pointchain index0  first extract index on base pointchain index1  last extract index on base pointchain

PointChain2D::PointChain2D (  AI_Transpose_Enum  type, PointChain2D  pc, Vec2D  vec )

Build by transposing an existing PointChain2D. Parameters: type  set to AI_Transpose pc  base pointchain vec  transposition vector

PointChain2D::PointChain2D (  AI_Abeam_Enum  type, PointChain2D  pc, double  dist )

Build by transposing an existing PointChain2D normal (left) to local line direction. Parameters: type  set to AI_Abeam pc  base pointchain dist  offset distance

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Member Function Documentation

void PointChain2D::Append (  AI_Sign_Enum  dir, PointChain2D  ptChExt )

Append a point chain. Parameters: dir  orientation of appending point-chain ptChExt  point chain to be appended

Vec2D PointChain2D::NormVec2DByIndex (  int  index  )

Unity vector normal to point chain at node index. The point chain direction is estimated by parabolical connection of predecessor, current node and successor.The direction is turnd by 90 deg against mathematicalpostitive rotation (in fact: let y turn to x).

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