cee::ug::HitItem

class HitItem

Small class containing the data for a hit of an intersection between a ray and a part in an UnstructGridModel.

int winCoordX = 0, winCoordY = 0;
cee::Ray ray = m_viewer->view()->camera().rayFromWindowCoordinates(winCoordX, winCoordY);
cee::ug::HitItem hitItem;
bool hitSomething = ugModel->rayIntersect(ray, &hitItem);

See also

ItemType

int itemId() const

Returns the id/index of the hit item.

If the hit item is a part, the part id is returned. If the hit item was a cutting plane, isosurface or isovolume, -1 is returned. Use itemIndex() instead. Check itemType() for which item type that was hit.

void setItemId(int itemId): Sets the part id for parts or index of item for cutting planes, isosurfaces and isovolumes.

size_t itemIndex() const: Returns the index of the item.

void setItemIndex(size_t itemIndex): Sets the item index. This is the (local) index of the part, cutting plane, isosurface or isovolume.

int stateId() const: Returns the state id of the hit item.

void setStateId(int stateId): Sets the state id.

size_t frameIndex() const: Returns the frame index of the hit item.

void setFrameIndex(size_t frameIndex): Sets the geometry index.

size_t geometryIndex() const: Returns the global geometry index, used to e.g. get the geometry from a DataState.

void setGeometryIndex(size_t geometryIndex): Sets the geometry index.

int partId() const

Returns the part id, used to e.g.

get the part from a DataGeometry

If itemType is PART, this will be the same as itemId(). If itemType is CUTTING_PLANE, ISOSURFACE or ISOVOLUME, this is the id of the DataPart in which the intersected element is located in.

void setPartId(int partId): Sets the id of the DataPart that was hit (or has the element hit in a cut/iso/particle trace)

size_t elementIndex() const

Returns the zero based index of the selected element.

The index refers to the DataElements of the DataPart with the id specified in partId().

void setElementIndex(size_t elementIndex): Sets the zero based index of the hit element.

size_t nodeIndex() const: Returns the zero based index of the closest node to the hit intersection point.

void setNodeIndex(size_t nodeIndex): Sets the zero based node index of the closest node.

size_t elementLocalNodeIndex() const

Returns the local (within the element) node index that was hit.

See Element for more info.

void setElementLocalNodeIndex(size_t localNodeIndex)

Sets the local (within the element) node index that was hit.

See Element for more info.

size_t elementLocalSurfaceIndex() const

Returns the local (within the element) surface index that was hit.

See Element for more info.

void setElementLocalSurfaceIndex(size_t surfaceIndex)

Sets the local (within the element) surface index that was hit.

See Element for more info.

size_t edgeNodeStartIndex() const: Returns the zero based node index of first node of the closest edge.

void setEdgeNodeStartIndex(size_t nodeIndex): Sets the zero based node index of the closest node.

size_t edgeNodeEndIndex() const: Returns the zero based node index of last node of the closest edge.

void setEdgeNodeEndIndex(size_t nodeIndex): Sets the zero based node index of the closest node.

Vec3d intersectionPoint() const: Returns the intersection point.

void setIntersectionPoint(const Vec3d &intersectionPoint): Sets the intersection point.

Vec3d intersectionPointNormal() const: Returns the normal to the intersection point.

void setIntersectionPointNormal(const Vec3d &intersectionPointNormal): Sets the intersection point’s normal.

size_t triangleIndex() const

Sets the triangle index of the hit item.

The triangle index is the index in the display model of the object.

If this is a normal part (type == PART), this index corresponds to the output from the VisualizationPartQuery::visibleTriangles() method.

For cutting planes, isosurfaces and isovolumes, this index corresponds to the triangles in CuttingPlaneData, IsosurfaceData or IsovolumeData.

void setTriangleIndex(size_t triangleIndex): Sets the intersection point’s normal.

double distanceAlongRay() const: Returns the distance along the ray.

void setDistanceAlongRay(double distance): Sets the distance along the ray.