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quickly implemented BSpline2 as an alternative B-Spline implementation

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- also looks reasonable and doesn't deviate much from Catmull-Rom
This commit is contained in:
Mark Olesen
2009-12-04 15:34:42 +01:00
parent b634c17e55
commit 066b3158e7
5 changed files with 286 additions and 9 deletions
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35
applications/test/spline/splineTest.C
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@ -27,7 +27,9 @@ License
#include "vector.H"
#include "IFstream.H"
#include "BSpline.H"
#include "BSpline2.H"
#include "CatmullRomSpline.H"
using namespace Foam;
@ -39,8 +41,9 @@ int main(int argc, char *argv[])
{
argList::noParallel();
argList::validArgs.insert("file .. fileN");
argList::addBoolOption("B", "B-Spline");
argList::addBoolOption("cmr", "catmull-rom spline (default)");
argList::addBoolOption("Bold", "B-Spline implementation OLD");
argList::addBoolOption("Bnew", "B-Spline implementation NEW");
argList::addBoolOption("CMR", "catmull-rom spline (default)");
argList::addOption
(
"n",
@ -55,11 +58,12 @@ int main(int argc, char *argv[])
args.printUsage();
}
bool useBSpline = args.optionFound("B");
bool useCatmullRom = args.optionFound("cmr");
bool useBSplineOld = args.optionFound("Bold");
bool useBSplineNew = args.optionFound("Bnew");
bool useCatmullRom = args.optionFound("CMR");
label nSeg = args.optionLookupOrDefault<label>("n", 20);
if (!useBSpline && !useCatmullRom)
if (!useCatmullRom && !useBSplineOld && !useBSplineNew)
{
Info<<"defaulting to Catmull-Rom spline" << endl;
useCatmullRom = true;
@ -77,12 +81,27 @@ int main(int argc, char *argv[])
{
Info<<"\noriginal points: " << pointFields[splineI] << nl;
if (useBSpline)
if (useBSplineOld)
{
BSpline spl(pointFields[splineI], vector::zero, vector::zero);
BSpline spl(pointFields[splineI]);
Info<< nl
<< "B-Spline interpolation:" << nl
<< "B-Spline interpolation: OLD" << nl
<< "----------------------" << endl;
for (label segI = 0; segI <= nSeg; ++segI)
{
scalar lambda = scalar(segI)/scalar(nSeg);
Info<< spl.position(lambda) << " // " << lambda << endl;
}
}
if (useBSplineNew)
{
BSpline2 spl(pointFields[splineI]);
Info<< nl
<< "B-Spline interpolation: NEW" << nl
<< "----------------------" << endl;
for (label segI = 0; segI <= nSeg; ++segI)