double ZNeuronTracer::findBestTerminalBreak(
const ZPoint &terminalCenter, double terminalRadius,
const ZPoint &innerCenter, double innerRadius, const Stack *stack)
{
double d = terminalCenter.distanceTo(innerCenter);
if (d < 0.5) {
return 1.0;
}
ZPoint dvec = terminalCenter - innerCenter;
dvec.normalize();
double innerIntensity = Stack_Point_Sampling(
stack, innerCenter.x(), innerCenter.y(), innerCenter.z());
if (innerIntensity == 0.0) {
return 1.0;
}
double lambda = 1.0;
for (lambda = 1.0; lambda >= 0.3; lambda -= 0.1) {
double radius = terminalRadius * lambda + innerRadius * (1 - lambda);
ZPoint currentEnd = innerCenter + dvec * (d * lambda + radius);
double terminalIntensity = Stack_Point_Sampling(
stack, currentEnd.x(), currentEnd.y(), currentEnd.z());
if (terminalIntensity / innerIntensity > 0.3) {
break;
}
}
return lambda;
}
int main(int argc, char *argv[])
{
Stack *stack = Make_Stack(GREY, 3, 3, 3);
int i;
for (i = 0; i < Stack_Voxel_Number(stack); i++) {
stack->array[i] = i;
}
Print_Stack(stack);
printf("%g\n", Stack_Point_Sampling(stack, 1.1, 1.5, 1.0));
printf("%g\n", Stack_Point_Sampling(stack, 1.1, 1.0, 1.5));
printf("%g\n", Stack_Point_Sampling(stack, 1.1, 1.0, 1.0));
printf("%g\n", Stack_Point_Sampling(stack, 1.0, 1.5, 1.3));
printf("%g\n", Stack_Point_Sampling(stack, 1.0, 1.5, 1.0));
printf("%g\n", Stack_Point_Sampling(stack, 1.0, 1.0, 1.3));
printf("%g\n", Stack_Point_Sampling(stack, 1.0, 1.5, 1.0));
DMatrix *dm;
dim_type dim[3];
dim[0] = 10;
dim[1] = 4;
dim[2] = 5;
dm = Make_DMatrix(dim, 3);
int j, k;
int offset = 0;
double x, y, z;
dim[0] = matrix_size(dm->dim, dm->ndim);
dim[1] = 3;
DMatrix *points = Make_DMatrix(dim, 2);
for (k = 0; k < dm->dim[2]; k++) {
z = (double) (k ) * (stack->depth - 1) / (dm->dim[2] - 1);
for (j = 0; j < dm->dim[1]; j++) {
y = (double) (j ) * (stack->height - 1) / (dm->dim[1] - 1);
for (i = 0; i < dm->dim[0]; i++) {
x = (double) (i ) * (stack->width - 1) / (dm->dim[0] - 1);
points->array[offset++] = x;
points->array[offset++] = y;
points->array[offset++] = z;
}
}
}
tic();
for (j = 0; j < 100; j++) {
Stack_Points_Sampling(stack, points->array, points->dim[0], dm->array);
}
printf("%llu\n", toc());
DMatrix_Print(dm);
Kill_Stack(stack);
stack = Scale_Double_Stack(dm->array, dm->dim[0], dm->dim[1], dm->dim[2],
GREY);
Write_Stack("../data/test.tif", stack);
Kill_Stack(stack);
Kill_DMatrix(dm);
Kill_DMatrix(points);
return 0;
}
