GU_LocalTransform.h

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/*
* PROPRIETARY INFORMATION.  This software is proprietary to
* Side Effects Software Inc., and is not to be reproduced,
* transmitted, or disclosed in any way without written permission.
*
* NAME:        GU_LocalTransform.h ( GU Library, C++)
*
* COMMENTS:
*      Declarations of functions and types for performing local transforms
*      of components.
*/

#ifndef __GU_LocalTransform_h__
#define __GU_LocalTransform_h__

#include <GA/GA_Types.h>
#include <GA/GA_Breakpoint.h>
#include <UT/UT_Function.h>
#include <UT/UT_VectorTypes.h>

class GA_Range;
class GEO_Detail;
class GEO_Delta;

namespace GU_LocalTransform
{
    template <typename FLOAT_T>
        using GetXformFunc = UT_Function<UT_Matrix4T<FLOAT_T>(exint i)>;

    /// Transform a list of point islands.
    /// PRE: No point can be in more than one island.
    template <typename FLOAT_T>
    void         transformPointIslands(
                                 GEO_Detail *gdp,
                                 const GetXformFunc<FLOAT_T> &get_xform,
                                 const GA_OffsetArray &points,
                                 const UT_ExintArray &island_start_indices,
                                 bool just_P = false,
                                 bool keep_vector_lengths = true,
                                 bool check_pasting = true,
                                 bool neg_determinant_flipvector = true,
                                 GEO_Delta *geodelta = 0,
                                 bool updateaffectednormals = false,
                                 const char *attribpattern = NULL);
    /// Transform a list of primitive islands.
    /// PRE: No point can be referenced by primitives in different islands.
    template <typename FLOAT_T>
    void         transformPrimIslands(
                                 GEO_Detail *gdp,
                                 const GetXformFunc<FLOAT_T> &get_xform,
                                 const GA_OffsetArray &primitives,
                                 const UT_ExintArray &island_start_indices,
                                 bool just_P = false,
                                 bool keep_vector_lengths = true,
                                 bool check_pasting = true,
                                 bool neg_determinant_flipvector = true,
                                 GEO_Delta *geodelta = 0,
                                 bool updateaffectednormals = false,
                                 const char *attribpattern = NULL);

    /// Transform a list of primitive islands where the island point lists are
    /// already extracted.
    /// PRE: No point can be referenced by primitives in different islands.
    /// PRE: island_start_indices.entries()==island_pts_start_indices.entries()
    template <typename FLOAT_T>
    void         transformPrimIslands(
                                 GEO_Detail *gdp,
                                 const GetXformFunc<FLOAT_T> &get_xform,
                                 const GA_OffsetArray &primitives,
                                 const UT_ExintArray &island_start_indices,
                                 const GA_OffsetArray &island_pts,
                                 const UT_ExintArray &island_pts_start_indices,
                                 bool just_P = false,
                                 bool keep_vector_lengths = true,
                                 bool check_pasting = true,
                                 bool neg_determinant_flipvector = true,
                                 GEO_Delta *geodelta = 0,
                                 bool updateaffectednormals = false,
                                 const char *attribpattern = NULL);

    /// Transform a list of breakpoint islands.
    /// PRE: No spline can be referenced by breakpoints in different islands.
    template <typename FLOAT_T>
    void         transformBreakpointIslands(
                                 GEO_Detail *gdp,
                                 const GetXformFunc<FLOAT_T> &get_xform,
                                 const UT_Array<GA_Breakpoint> &bkpts,
                                 const UT_ExintArray &island_start_indices,
                                 bool just_P = false,
                                 bool keep_vector_lengths = true,
                                 bool check_pasting = true,
                                 bool neg_determinant_flipvector = true,
                                 GEO_Delta *geodelta = 0,
                                 bool updateaffectednormals = false,
                                 const char *attribpattern = NULL);
}

#endif // __GU_LocalTransform_h__