Propeller Blade Curve Functions

The following group of API functions may be used to control parametric propeller blade curves (PCurves). Click here to return to the main page. More...

Functions
void	vsp::SetPCurve (const std::string &geom_id, const int &pcurveid, const std::vector< double > &tvec, const std::vector< double > &valvec, const int &newtype)
void	vsp::PCurveConvertTo (const std::string &geom_id, const int &pcurveid, const int &newtype)
int	vsp::PCurveGetType (const std::string &geom_id, const int &pcurveid)
std::vector< double >	vsp::PCurveGetTVec (const std::string &geom_id, const int &pcurveid)
std::vector< double >	vsp::PCurveGetValVec (const std::string &geom_id, const int &pcurveid)
void	vsp::PCurveDeletePt (const std::string &geom_id, const int &pcurveid, const int &indx)
int	vsp::PCurveSplit (const std::string &geom_id, const int &pcurveid, const double &tsplit)
void	vsp::ApproximateAllPropellerPCurves (const std::string &geom_id)
void	vsp::ResetPropellerThicknessCurve (const std::string &geom_id)

Detailed Description

Function Documentation

ApproximateAllPropellerPCurves()

void vsp::ApproximateAllPropellerPCurves ( const std::string & geom_id )

extern

Approximate all propeller blade curves with cubic Bezier curves.

// Add Propeller
string prop = AddGeom( "PROP", "" );
 
ApproximateAllPropellerPCurves( prop );

Parameters

[in]

geom_id

string Geom ID

PCurveConvertTo()

void vsp::PCurveConvertTo ( const std::string & geom_id, const int & pcurveid, const int & newtype )

extern

Change the type of a propeller blade curve (P Curve)

See also

PCURV_TYPE

Parameters

[in]	geom_id	string Parent Geom ID
[in]	pcurveid	P Curve index
[in]	newtype	Curve type enum (i.e. CEDIT)

PCurveDeletePt()

void vsp::PCurveDeletePt ( const std::string & geom_id, const int & pcurveid, const int & indx )

extern

Delete a propeller blade curve (P Curve) point

Parameters

[in]	geom_id	string Parent Geom ID
[in]	pcurveid	P Curve index
[in]	indx	Point index

PCurveGetTVec()

std::vector< double > vsp::PCurveGetTVec ( const std::string & geom_id, const int & pcurveid )

extern

Get the parameters of a propeller blade curve (P Curve). Each parameter is a fraction of propeller radius.

Parameters

[in]	geom_id	string Parent Geom ID
[in]	pcurveid	P Curve index

Returns

Array of parameters

PCurveGetType()

int vsp::PCurveGetType ( const std::string & geom_id, const int & pcurveid )

extern

Get the type of a propeller blade curve (P Curve)

See also

PCURV_TYPE

Parameters

[in]	geom_id	string Parent Geom ID
[in]	pcurveid	P Curve index

Returns

Curve type enum (i.e. CEDIT)

PCurveGetValVec()

std::vector< double > vsp::PCurveGetValVec ( const std::string & geom_id, const int & pcurveid )

extern

Get the values of a propeller blade curve (P Curve). What the values represent id dependent on the curve type (i.e. twist, chord, etc.).

Parameters

[in]	geom_id	string Parent Geom ID
[in]	pcurveid	P Curve index

Returns

Array of values

PCurveSplit()

int vsp::PCurveSplit ( const std::string & geom_id, const int & pcurveid, const double & tsplit )

extern

Split a propeller blade curve (P Curve) at the specified 1D parameter

Parameters

[in]	geom_id	string Parent Geom ID
[in]	pcurveid	P Curve index
[in]	tsplit	1D parameter split location

Returns

Index of new control point

ResetPropellerThicknessCurve()

void vsp::ResetPropellerThicknessCurve ( const std::string & geom_id )

extern

Reset propeller T/C curve to match basic thickness of file-type airfoils. Typically only used for a propeller that has been constructed with file-type airfoils across the blade. The new thickness curve will be a PCHIP curve with t/c matching the propeller's XSecs – unless it is a file XSec, then the Base thickness is used.

// Add Propeller
string prop = AddGeom( "PROP", "" );
 
ResetPropellerThicknessCurve( prop );

Parameters

[in]

geom_id

string Geom ID

SetPCurve()

void vsp::SetPCurve ( const std::string & geom_id, const int & pcurveid, const std::vector< double > & tvec, const std::vector< double > & valvec, const int & newtype )

extern

Set the parameters, values, and curve type of a propeller blade curve (P Curve)

See also

PCURV_TYPE

Parameters

[in]	geom_id	string Parent Geom ID
[in]	pcurveid	P Curve index
[in]	tvec	Array of parameter values
[in]	valvec	Array of values
[in]	newtype	Curve type enum (i.e. CEDIT)