EWorldShape::RebuildGrid
Reconstructs the grid of points from the given dot centers, to compute the World coordinates of the points.
Namespace: Euresys::Open_eVision
[C++]
OEV_UINT32 RebuildGrid(
float colPitch,
float rowPitch,
OEV_UINT32 centerIndex,
bool direct
)
OEV_UINT32 RebuildGrid(
float colPitch,
float rowPitch,
const EPoint& worldCenter,
OEV_UINT32 centerIndex,
bool direct
)
Parameters
colPitch
Actual pitches of the grid, that are distances between vertical and horizontal rows of the grid.
rowPitch
Actual pitches of the grid, that are distances between vertical and horizontal rows of the grid.
centerIndex
Index of the grid point chosen as coordinate origin point. By default, the most central grid point.
direct
worldCenter
World coordinates of the starting grid point.
Remarks
This member function also returns the number of grid points that were connected. This prepares the calibration using landmarks (for use by member EWorldShape::Calibrate). Landmark calibration is the process of computing the calibration parameters by means of a set of known points for which the coordinates are available in both World and Sensor spaces. Usually, such points are chosen as salient features on the part or target in view. They must be such that appropriate image processing techniques allow measuring their positions from the image (directly or indirectly by geometric constructions), while at the same time their coordinates in a reference frame are known. See also Dot-Grid-Based Calibration for the grid construction algorithm.
EWorldShape.RebuildGrid
Reconstructs the grid of points from the given dot centers, to compute the World coordinates of the points.
Namespace: Euresys.Open_eVision
[C#]
uint RebuildGrid(
float colPitch,
float rowPitch,
uint centerIndex,
bool direct
)
uint RebuildGrid(
float colPitch,
float rowPitch,
Euresys.Open_eVision.EPoint worldCenter,
uint centerIndex,
bool direct
)
Parameters
colPitch
Actual pitches of the grid, that are distances between vertical and horizontal rows of the grid.
rowPitch
Actual pitches of the grid, that are distances between vertical and horizontal rows of the grid.
centerIndex
Index of the grid point chosen as coordinate origin point. By default, the most central grid point.
direct
worldCenter
World coordinates of the starting grid point.
Remarks
This member function also returns the number of grid points that were connected. This prepares the calibration using landmarks (for use by member EWorldShape::Calibrate). Landmark calibration is the process of computing the calibration parameters by means of a set of known points for which the coordinates are available in both World and Sensor spaces. Usually, such points are chosen as salient features on the part or target in view. They must be such that appropriate image processing techniques allow measuring their positions from the image (directly or indirectly by geometric constructions), while at the same time their coordinates in a reference frame are known. See also Dot-Grid-Based Calibration for the grid construction algorithm.