public int getSurfacePointIndexAndFraction(
float cutoff,
boolean isCutoffAbsolute,
int x,
int y,
int z,
Point3i offset,
int vA,
int vB,
float valueA,
float valueB,
Point3f pointA,
Vector3f edgeVector,
boolean isContourType,
float[] fReturn) {
float thisValue =
getSurfacePointAndFraction(
cutoff,
isCutoffAbsolute,
valueA,
valueB,
pointA,
edgeVector,
x,
y,
z,
vA,
vB,
fReturn,
ptTemp);
/*
* from MarchingCubes
*
* In the case of a setup for a Marching Squares calculation,
* we are collecting just the desired type of intersection for the 2D marching
* square contouring -- x, y, or z. In the case of a contoured f(x,y) surface,
* we take every point.
*
*/
if (marchingSquares != null && params.isContoured)
return marchingSquares.addContourVertex(ptTemp, cutoff);
int assocVertex =
(assocCutoff > 0
? (fReturn[0] < assocCutoff
? vA
: fReturn[0] > 1 - assocCutoff ? vB : MarchingSquares.CONTOUR_POINT)
: MarchingSquares.CONTOUR_POINT);
if (assocVertex >= 0) assocVertex = marchingCubes.getLinearOffset(x, y, z, assocVertex);
int n = addVertexCopy(ptTemp, thisValue, assocVertex);
if (n >= 0 && params.iAddGridPoints) {
marchingCubes.calcVertexPoint(x, y, z, vB, ptTemp);
addVertexCopy(valueA < valueB ? pointA : ptTemp, Float.NaN, MarchingSquares.EDGE_POINT);
addVertexCopy(valueA < valueB ? ptTemp : pointA, Float.NaN, MarchingSquares.EDGE_POINT);
}
return n;
}
