libsurf
Programmer's Documentation
libsurf
Programmer's Documentation
Base class for all curve objects.
AbstractCurve is the base class for all curve objects. The most important child class is Curve, which represents a cubic spline curve.
#include <abstractcurve.h>
Public Member Functions | |
| AbstractCurve (const std::string &s="") | |
| unamed curve | |
| virtual | ~AbstractCurve () |
| virtual destructor | |
| void | rename (const std::string &s) |
| change name | |
| const std::string & | name () const |
| return name | |
| virtual AbstractCurve * | clone () const =0 |
| create a clone | |
| virtual Vct3 | eval (Real t) const =0 |
| evaluate spline curve | |
| virtual Vct3 | derive (Real t, uint k) const =0 |
| compute kth derivative | |
| virtual void | apply ()=0 |
| apply hard transformation | |
| virtual void | tgline (Real t, Vct3 &c, Vct3 &dc) const |
| compute point and first derivative in one sweep | |
| virtual Real | curvature (Real t) const |
| compute curvature at t | |
| virtual void | initGrid (Vector &t) const |
| generate a reasonable discretization | |
| virtual uint | discretize (const DcMeshCritBase &mcrit, Vector &t) const |
| discretization based on simple criteria | |
| virtual void | tessellate (CgMesh &cgr) const |
| discretized for visualization based on default grid | |
| virtual bool | project (const Vct3 &pt, Real &s, Real stol=gmepsilon, Real ttol=1e-6) const |
| project point onto curve, starting at t | |
| virtual bool | pierce (const Vct3 &pn, Real dp, Real &s, Real stol=gmepsilon) const |
| compute intersection of curve with plane (pn,dp), return success | |
| virtual XmlElement | toXml (bool share=false) const |
| XML output. | |
| virtual void | fromXml (const XmlElement &xe) |
| XML input. | |
| virtual int | toIges (IgesFile &file, int tfi=0) const |
| write curve to iges file | |
| virtual bool | fromIges (const IgesFile &file, const IgesDirEntry &dir) |
| extract curve from iges file | |
 Public Member Functions inherited from RFrame | |
| void | clear () |
| Vct3 | getOrigin () const |
| void | translate (const Vct3 &v) |
| void | translate (Real dx, Real dy, Real dz) |
| void | rotate (Real betax, Real betay, Real betaz) |
| void | rotate (const Vct3 &rotax, Real angle) |
| void | scale (Real xf, Real yf, Real zf) |
| void | scale (Real f) |
| void | mirror (const Vct3 &normal) |
| const SMatrix< 4, 4 > & | trafoMatrix () const |
| void | setTrafoMatrix (const SMatrix< 4, 4 > &m) |
| Vct3 | forward (const Vct3 &a) const |
| void | forward (const PointList< 4 > &a, PointList< 4 > &b) const |
Static Public Member Functions | |
| static AbstractCurvePtr | createFromXml (const XmlElement &xe) |
| create curve from any xml representation | |
| static AbstractCurvePtr | createFromIges (const IgesFile &file, const IgesDirEntry &entry) |
| create curve from IGES entity | |
| static void | gridFromKnots (uint n, const Vector &kts, Vector &t, Real tstart=0.0, Real tend=1.0) |
| discretization from spline knot vector | |
| static uint | arclenParamet (const AbstractCurveArray &cpa, Vector &vp) |
| Parametrization of curve sets. More... | |
Protected Member Functions | |
| void | setIgesName (const IgesFile &file, const IgesEntity &e) |
| find curves that fit together and create a composite curve, decimate list More... | |
| void | setIgesTransform (const IgesFile &file, const IgesDirEntry &entry) |
| extract referenced transformation matrix from IGES file, apply | |
Protected Attributes | |
| std::string | ids |
| curve object name | |
| Protected Attributes inherited from RFrame | |
| SMatrix< 4, 4 > | mat |
|
static |
Parametrization of curve sets.
Compute the arc-length parametrization of a set of curves. Returns the number of curves which end up on the same position as their predecessor.
|
protected |
find curves that fit together and create a composite curve, decimate list
extract name from IGES entry, if any
1.8.5