# CurveFitter

from pandac.PandaModules import CurveFitter

Class : CurveFitter
Description :

## Inheritance:

CurveFitter:

## Methods of CurveFitter:

addHpr
addXyz
addXyzHpr
computeTangents
desample
getClassType
getNumSamples
getSampleHpr
getSampleT
getSampleTangent
getSampleXyz
makeHermite
makeNurbs
output
removeSamples
reset
sample
sortPoints
wrapHpr
write

addHpr void CurveFitter::add_hpr(float t, LVecBase3f const &hpr); Description: Adds a single sample hpr.

addXyz void CurveFitter::add_xyz(float t, LVecBase3f const &xyz); Description: Adds a single sample xyz.

addXyzHpr void CurveFitter::add_xyz_hpr(float t, LVecBase3f const &xyz, LVecBase3f const &hpr); Description: Adds a single sample xyz & hpr simultaneously.

computeTangents void CurveFitter::compute_tangents(float scale); Description: Once a set of points has been built, and prior to calling MakeHermite() or MakeNurbs(), ComputeTangents() must be called to set up the tangents correctly (unless the tangents were defined as the points were added).

desample void CurveFitter::desample(float factor); Description: Removes sample points in order to reduce the complexity of a sampled curve. Keeps one out of every factor samples. Also keeps the first and the last samples.

getClassType static TypeHandle CurveFitter::get_class_type(void); Undocumented function.

getNumSamples int CurveFitter::get_num_samples(void) const; Description: Returns the number of sample points that have been added.

getSampleHpr LVecBase3f CurveFitter::get_sample_hpr(int n) const; Description: Returns the orientation of the nth sample added.

getSampleT float CurveFitter::get_sample_t(int n) const; Description: Returns the parametric value of the nth sample added.

getSampleTangent LVecBase3f CurveFitter::get_sample_tangent(int n) const; Description: Returns the tangent associated with the nth sample added. This is only meaningful if compute_tangents() has already been called.

getSampleXyz LVecBase3f CurveFitter::get_sample_xyz(int n) const; Description: Returns the point in space of the nth sample added.

makeHermite PointerTo< ParametricCurveCollection > CurveFitter::make_hermite(void) const; Description: Converts the current set of data points into a Hermite curve.

makeNurbs PointerTo< ParametricCurveCollection > CurveFitter::make_nurbs(void) const; Description: Converts the current set of data points into a NURBS curve. This gives a smoother curve than produced by MakeHermite().

output void CurveFitter::output(ostream &out) const; Description:

removeSamples void CurveFitter::remove_samples(int begin, int end); Description: Eliminates all samples from index begin, up to but not including index end, from the database.

reset void CurveFitter::reset(void); Description: Removes all the data points previously added to the CurveFitter, and initializes it for a new curve.

sample void CurveFitter::sample(ParametricCurveCollection *curves, int count); Description: Generates a series of data points by sampling the given curve (or xyz/hpr curves) the indicated number of times. The sampling is made evenly in parametric time, and then the timewarps, if any, are applied.

sortPoints void CurveFitter::sort_points(void); Description: Sorts all the data points in order by parametric time, in case they were added in an incorrect order.

wrapHpr void CurveFitter::wrap_hpr(void); Description: Resets each HPR data point so that the maximum delta between any two consecutive points is 180 degrees, which should prevent incorrect HPR wrapping.

write void CurveFitter::write(ostream &out) const; Description: