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	SetPCurve (const string &in geom_id, const int &in pcurveid, double[]@ tvec, double[]@ valvec, const int &in newtype)
void	PCurveConvertTo (const string &in geom_id, const int &in pcurveid, const int &in newtype)
int	PCurveGetType (const string &in geom_id, const int &in pcurveid)
double[]	PCurveGetTVec (const string &in geom_id, const int &in pcurveid)
double[]	PCurveGetValVec (const string &in geom_id, const int &in pcurveid)
void	PCurveDeletePt (const string &in geom_id, const int &in pcurveid, const int &in indx)
int	PCurveSplit (const string &in geom_id, const int &in pcurveid, const double &in tsplit)
void	ApproximateAllPropellerPCurves (const string &in geom_id)
void	ResetPropellerThicknessCurve (const string &in geom_id)

Detailed Description

Function Documentation

ApproximateAllPropellerPCurves()

void ApproximateAllPropellerPCurves

(

const string &in

geom_id

)

Approximate all propeller blade curves with cubic Bezier curves.

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

Parameters

[in]

geom_id

Geom ID

PCurveConvertTo()

void PCurveConvertTo	(	const string &in	geom_id,
		const int &in	pcurveid,
		const int &in	newtype
	)

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

See also

PCURV_TYPE

Parameters

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

PCurveDeletePt()

void PCurveDeletePt	(	const string &in	geom_id,
		const int &in	pcurveid,
		const int &in	indx
	)

Delete a propeller blade curve (P Curve) point

Parameters

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

PCurveGetTVec()

double [] PCurveGetTVec	(	const string &in	geom_id,
		const int &in	pcurveid
	)

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

Parameters

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

Returns

Array of parameters

PCurveGetType()

int PCurveGetType	(	const string &in	geom_id,
		const int &in	pcurveid
	)

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

See also

PCURV_TYPE

Parameters

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

Returns

Curve type enum (i.e. CEDIT)

PCurveGetValVec()

double [] PCurveGetValVec	(	const string &in	geom_id,
		const int &in	pcurveid
	)

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	Parent Geom ID
[in]	pcurveid	P Curve index

Returns

Array of values

PCurveSplit()

int PCurveSplit	(	const string &in	geom_id,
		const int &in	pcurveid,
		const double &in	tsplit
	)

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

Parameters

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

Returns

Index of new control point

ResetPropellerThicknessCurve()

void ResetPropellerThicknessCurve

(

const string &in

geom_id

)

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

Geom ID

SetPCurve()

void SetPCurve	(	const string &in	geom_id,
		const int &in	pcurveid,
		double@[]	tvec,
		double@[]	valvec,
		const int &in	newtype
	)

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

See also

PCURV_TYPE

Parameters

[in]	geom_id	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)