Stop the spline generation if the number of points gets too big (generation...

Stop the spline generation if the number of points gets too big (generation diverges for some reason)

src/g2_spline.cpp

@@ -587,14 +587,16 @@ void CG2Spline::generate(double resolution,unsigned int iterations)
   double n1_c_start,n1_2_k_s_start,n1_s_start,n1_2_k_c_start;
   double n2_c_end,n2_2_k_s_end,n2_s_end,n2_2_k_c_end;
   double u,pow_u,new_length,last_length;
-  unsigned int i;
+  unsigned int i,max_num_points;
 
   this->resolution=resolution;
   last_length=0.0;
   new_length=sqrt(pow(this->end.x-this->start.x,2)+pow(this->end.y-this->start.y,2));
+  max_num_points=10.0*(new_length/resolution);
+  this->num_points=0;
   if(new_length>this->resolution)
   {
-    while(iterations>0 && fabs(new_length-last_length)>this->resolution)
+    while(iterations>0 && fabs(new_length-last_length)>this->resolution && this->num_points<max_num_points)
     {
       last_length=new_length;
       this->num_points=ceil(last_length/resolution);
@@ -680,14 +682,16 @@ void CG2Spline::generate(double resolution,double length,unsigned int iterations
   double n1_c_start,n1_2_k_s_start,n1_s_start,n1_2_k_c_start;
   double n2_c_end,n2_2_k_s_end,n2_s_end,n2_2_k_c_end;
   double u,pow_u,new_length,last_length;
-  unsigned int i;
+  unsigned int i,max_num_points;
 
   this->resolution=resolution;
   last_length=0.0;
   new_length=length;
+  max_num_points=10.0*(length/resolution);
+  this->num_points=0;
   if(new_length>this->resolution)
   {
-    while(iterations>0 && fabs(new_length-last_length)>this->resolution)
+    while(iterations>0 && fabs(new_length-last_length)>this->resolution && this->num_points<max_num_points)
     {
       last_length=new_length;
       this->num_points=ceil(last_length/resolution);