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https://gitlab.kitware.com/vtk/vtk-m
synced 2024-09-08 13:23:51 +00:00
3e1339f9a7
With the major revision 2.0 of VTK-m, many items previously marked as deprecated were removed. If updating to a new version of VTK-m, it is recommended to first update to VTK-m 1.9, which will include the deprecated features but provide warnings (with the right compiler) that will point to the replacement code. Once the deprecations have been fixed, updating to 2.0 should be smoother.
109 lines
2.9 KiB
C++
109 lines
2.9 KiB
C++
//============================================================================
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// Copyright (c) Kitware, Inc.
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// All rights reserved.
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// See LICENSE.txt for details.
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//
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// This software is distributed WITHOUT ANY WARRANTY; without even
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// the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
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// PURPOSE. See the above copyright notice for more information.
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//============================================================================
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#ifndef vtkm_exec_celllocatoruniformgrid_h
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#define vtkm_exec_celllocatoruniformgrid_h
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#include <vtkm/Bounds.h>
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#include <vtkm/Math.h>
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#include <vtkm/TopologyElementTag.h>
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#include <vtkm/Types.h>
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#include <vtkm/VecFromPortalPermute.h>
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#include <vtkm/cont/CellSetStructured.h>
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#include <vtkm/exec/CellInside.h>
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#include <vtkm/exec/ParametricCoordinates.h>
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namespace vtkm
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{
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namespace exec
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{
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class VTKM_ALWAYS_EXPORT CellLocatorUniformGrid
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{
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public:
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VTKM_CONT
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CellLocatorUniformGrid(const vtkm::Id3 cellDims,
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const vtkm::Vec3f origin,
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const vtkm::Vec3f invSpacing,
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const vtkm::Vec3f maxPoint)
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: CellDims(cellDims)
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, MaxCellIds(vtkm::Max(cellDims - vtkm::Id3(1), vtkm::Id3(0)))
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, Origin(origin)
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, InvSpacing(invSpacing)
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, MaxPoint(maxPoint)
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{
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}
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VTKM_EXEC inline bool IsInside(const vtkm::Vec3f& point) const
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{
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bool inside = true;
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if (point[0] < this->Origin[0] || point[0] > this->MaxPoint[0])
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inside = false;
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if (point[1] < this->Origin[1] || point[1] > this->MaxPoint[1])
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inside = false;
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if (point[2] < this->Origin[2] || point[2] > this->MaxPoint[2])
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inside = false;
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return inside;
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}
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struct LastCell
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{
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};
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VTKM_EXEC
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vtkm::ErrorCode FindCell(const vtkm::Vec3f& point,
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vtkm::Id& cellId,
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vtkm::Vec3f& parametric,
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LastCell& vtkmNotUsed(lastCell)) const
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{
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return this->FindCell(point, cellId, parametric);
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}
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VTKM_EXEC
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vtkm::ErrorCode FindCell(const vtkm::Vec3f& point,
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vtkm::Id& cellId,
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vtkm::Vec3f& parametric) const
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{
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if (!this->IsInside(point))
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{
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cellId = -1;
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return vtkm::ErrorCode::CellNotFound;
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}
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// Get the Cell Id from the point.
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vtkm::Id3 logicalCell(0, 0, 0);
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vtkm::Vec3f temp;
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temp = point - this->Origin;
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temp = temp * this->InvSpacing;
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//make sure that if we border the upper edge, we sample the correct cell
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logicalCell = vtkm::Min(vtkm::Id3(temp), this->MaxCellIds);
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cellId =
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(logicalCell[2] * this->CellDims[1] + logicalCell[1]) * this->CellDims[0] + logicalCell[0];
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parametric = temp - logicalCell;
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return vtkm::ErrorCode::Success;
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}
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private:
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vtkm::Id3 CellDims;
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vtkm::Id3 MaxCellIds;
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vtkm::Vec3f Origin;
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vtkm::Vec3f InvSpacing;
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vtkm::Vec3f MaxPoint;
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};
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}
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}
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#endif //vtkm_exec_celllocatoruniformgrid_h
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