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122 lines
4.0 KiB
C++
Executable File
122 lines
4.0 KiB
C++
Executable File
// Created on: 2008-05-15
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// Created by: Vladislav ROMASHKO
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// Copyright (c) 2008-2012 OPEN CASCADE SAS
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//
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// The content of this file is subject to the Open CASCADE Technology Public
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// License Version 6.5 (the "License"). You may not use the content of this file
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// except in compliance with the License. Please obtain a copy of the License
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// at http://www.opencascade.org and read it completely before using this file.
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//
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// The Initial Developer of the Original Code is Open CASCADE S.A.S., having its
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// main offices at: 1, place des Freres Montgolfier, 78280 Guyancourt, France.
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//
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// The Original Code and all software distributed under the License is
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// distributed on an "AS IS" basis, without warranty of any kind, and the
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// Initial Developer hereby disclaims all such warranties, including without
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// limitation, any warranties of merchantability, fitness for a particular
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// purpose or non-infringement. Please see the License for the specific terms
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// and conditions governing the rights and limitations under the License.
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#include <Voxel_FloatDS.ixx>
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#include <stdlib.h>
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// Empty constructor
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Voxel_FloatDS::Voxel_FloatDS():Voxel_DS()
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{
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}
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// Constructor with intialization.
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Voxel_FloatDS::Voxel_FloatDS(const Standard_Real x, const Standard_Real y, const Standard_Real z,
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const Standard_Real xlen, const Standard_Real ylen, const Standard_Real zlen,
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const Standard_Integer nbx, const Standard_Integer nby, const Standard_Integer nbz)
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:Voxel_DS()
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{
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Init(x, y, z, xlen, ylen, zlen, nbx, nby, nbz);
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}
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// Initialization.
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void Voxel_FloatDS::Init(const Standard_Real x, const Standard_Real y, const Standard_Real z,
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const Standard_Real xlen, const Standard_Real ylen, const Standard_Real zlen,
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const Standard_Integer nbx, const Standard_Integer nby, const Standard_Integer nbz)
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{
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Destroy();
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Voxel_DS::Init(x, y, z, xlen, ylen, zlen, nbx, nby, nbz);
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if (!myNbX || !myNbY || !myNbZ)
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return;
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Standard_Integer nb_floats = myNbXY * myNbZ;
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Standard_Integer nb_slices = RealToInt(ceil(nb_floats / 32.0)); // 32 values in 1 slice
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myData = (Standard_Address) calloc(nb_slices, sizeof(Standard_ShortReal*));
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}
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// Destructor
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void Voxel_FloatDS::Destroy()
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{
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if (myData)
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{
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SetZero();
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free((Standard_ShortReal**)myData);
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myData = 0;
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}
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}
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void Voxel_FloatDS::SetZero()
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{
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if (myData)
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{
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Standard_Integer nb_bytes = myNbXY * myNbZ;
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Standard_Integer ix = 0, nb_slices = RealToInt(ceil(nb_bytes / 32.0));
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for (; ix < nb_slices; ix++)
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{
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if (((Standard_ShortReal**)myData)[ix])
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{
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free(((Standard_ShortReal**)myData)[ix]);
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((Standard_ShortReal**)myData)[ix] = 0;
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}
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}
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}
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}
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// Access to the floating-point information attached to a particular voxel:
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// Info: (ix >= 0 && ix < theNb_x), etc.
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void Voxel_FloatDS::Set(const Standard_Integer ix, const Standard_Integer iy, const Standard_Integer iz,
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const Standard_ShortReal data)
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{
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Standard_Integer ifloat = ix + myNbX * iy + myNbXY * iz;
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Standard_Integer islice = ifloat >> 5;
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// Allocate the slice if it is not done yet.
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if (!((Standard_ShortReal**)myData)[islice])
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{
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((Standard_ShortReal**)myData)[islice] =
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(Standard_ShortReal*) calloc(32/*number of floating values in slice*/, sizeof(Standard_ShortReal));
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}
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// Index of start-byte of the value within the slice.
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Standard_Integer ivalue = ifloat - (islice << 5);
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// Value (float)
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((Standard_ShortReal*)((Standard_ShortReal**)myData)[islice])[ivalue] = data;
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}
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Standard_ShortReal Voxel_FloatDS::Get(const Standard_Integer ix, const Standard_Integer iy, const Standard_Integer iz) const
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{
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Standard_Integer ifloat = ix + myNbX * iy + myNbXY * iz;
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Standard_Integer islice = ifloat >> 5;
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// If the slice of data is not allocated, it means that its values are 0.
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if (!((Standard_ShortReal**)myData)[islice])
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return 0.0f;
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// Index of start-byte of the value within the slice.
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Standard_Integer ivalue = ifloat - (islice << 5);
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// Value (floating-point value)
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return ((Standard_ShortReal*)((Standard_ShortReal**)myData)[islice])[ivalue];
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}
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