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#3941 Improve contour map performance by several measures

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* Discarding triangles that aren't inside current level. Big gain.
* Checking bbox for contour levels. Minor gain.
* Doing less interpolation. Minor gain.
This commit is contained in:
Gaute Lindkvist 2019-01-10 14:45:59 +01:00
parent 67d0b44c1e
commit 8428e848de
2 changed files with 31 additions and 6 deletions
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36
ApplicationCode/ProjectDataModel/RimContourMapProjection.cpp
View File

@ -135,6 +135,8 @@ std::vector<cvf::Vec4d> RimContourMapProjection::generateTrianglesWithVertexValu
int myThread = omp_get_thread_num();
threadTriangles[myThread].reserve(faceList->size() / omp_get_num_threads());
std::set<int64_t> excludedFaceIndices;
#pragma omp for
for (int64_t i = 0; i < (int64_t) faceList->size(); i += 3)
{
@ -154,15 +156,33 @@ std::vector<cvf::Vec4d> RimContourMapProjection::generateTrianglesWithVertexValu
continue;
}
for (size_t c = 0; c < m_contourPolygons.size(); ++c)
for (size_t c = 0; c < m_contourPolygons.size() && excludedFaceIndices.count(i) == 0u; ++c)
{
std::vector<std::vector<cvf::Vec3d>> intersectPolygons;
for (size_t j = 0; j < m_contourPolygons[c].size(); ++j)
{
std::vector<std::vector<cvf::Vec3d>> clippedPolygons = RigCellGeometryTools::intersectPolygons(triangle, m_contourPolygons[c][j].vertices);
intersectPolygons.insert(intersectPolygons.end(), clippedPolygons.begin(), clippedPolygons.end());
}
bool containsAtLeastOne = false;
for (cvf::Vec3d point : triangle)
{
if (m_contourPolygons[c][j].bbox.contains(point))
{
containsAtLeastOne = true;
break;
}
}
if (containsAtLeastOne)
{
std::vector<std::vector<cvf::Vec3d>> clippedPolygons = RigCellGeometryTools::intersectPolygons(triangle, m_contourPolygons[c][j].vertices);
intersectPolygons.insert(intersectPolygons.end(), clippedPolygons.begin(), clippedPolygons.end());
}
}
if (intersectPolygons.empty())
{
excludedFaceIndices.insert(i);
continue;
}
std::vector<std::vector<cvf::Vec3d>> subtractPolygons;
if (c < m_contourPolygons.size() - 1)
{
@ -228,7 +248,6 @@ std::vector<cvf::Vec4d> RimContourMapProjection::generateTrianglesWithVertexValu
}
else
{
value = interpolateValue(cvf::Vec2d(localVertex.x(), localVertex.y()));
for (size_t n = 0; n < 3; ++n)
{
if ((triangle[n] - localVertex).length() < m_sampleSpacing * 0.01 &&
@ -240,7 +259,11 @@ std::vector<cvf::Vec4d> RimContourMapProjection::generateTrianglesWithVertexValu
}
if (value == std::numeric_limits<double>::infinity())
{
value = contourLevels[c];
value = interpolateValue(cvf::Vec2d(localVertex.x(), localVertex.y()));
if (value == std::numeric_limits<double>::infinity())
{
value = contourLevels[c];
}
}
}
@ -325,6 +348,7 @@ void RimContourMapProjection::generateContourPolygons()
{
cvf::Vec3d contourPoint3d = cvf::Vec3d(closedContourLines[i][j][k], 0.0);
contourPolygon.vertices.push_back(contourPoint3d);
contourPolygon.bbox.add(contourPoint3d);
}
contourPolygons[i].push_back(contourPolygon);
}

1
ApplicationCode/ProjectDataModel/RimContourMapProjection.h
View File

@ -50,6 +50,7 @@ public:
{
std::vector<cvf::Vec3d> vertices;
double value;
cvf::BoundingBox bbox;
};
enum ResultAggregationEnum