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-rw-r--r--extensions/smpath.cpp22
1 files changed, 18 insertions, 4 deletions
diff --git a/extensions/smpath.cpp b/extensions/smpath.cpp
index d86e18b..9d73b4a 100644
--- a/extensions/smpath.cpp
+++ b/extensions/smpath.cpp
@@ -1,13 +1,27 @@
#include <cmath>
#include "smpath.hpp"
smPathSegment::smPathSegment(smvec2d _a,smvec2d _b){a=_a,b=_b;}
-smvec2d smPathSegment::getPointOnPath(double percentage)
-{return a+percentage*(b-a);}
+smvec2d smPathSegment::getPointOnPath(double rt)
+{return a+rt*(b-a);}
double smPathSegment::getPathLength()
{return (a-b).l();}
smPathCircular::smPathCircular(smvec2d _ctr,double _a,double _b,double _r)
{ctr=_ctr,a=_a,b=_b,r=_r;}
-smvec2d smPathCircular::getPointOnPath(double percentage)
-{return smvec2d(ctr.x+r*cos(a+percentage*(b-a)),ctr.y+r*sin(a+percentage*(b-a)));}
+smvec2d smPathCircular::getPointOnPath(double rt)
+{return smvec2d(ctr.x+r*cos(a+rt*(b-a)),ctr.y+r*sin(a+rt*(b-a)));}
double smPathCircular::getPathLength()
{return fabs(a-b)*r;}
+int smPathCollection::pushPath(smPathBase *p){paths[cpaths++]=p;return cpaths-1;}
+smPathBase* smPathCollection::getPath(int pid){return paths[pid];}
+smvec2d smPathCollection::getPointOnCollection(double rt)
+{
+ double l=0.,tl=0.;
+ int i;
+ for(i=0;i<cpaths;++i)l+=paths[i]->getPathLength();
+ for(i=0;i<cpaths;++i)
+ {
+ if(tl+paths[i]->getPathLength()>=l*rt)break;
+ tl+=paths[i]->getPathLength();
+ }
+ return paths[i]->getPointOnPath(rt-tl/l);
+}