/usr/include/libwildmagic/Wm5Terrain.h is in libwildmagic-dev 5.13-1+b2.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
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// Copyright (c) 1998-2014
// Distributed under the Boost Software License, Version 1.0.
// http://www.boost.org/LICENSE_1_0.txt
// http://www.geometrictools.com/License/Boost/LICENSE_1_0.txt
//
// File Version: 5.0.1 (2010/10/01)
#ifndef WM5TERRAIN_H
#define WM5TERRAIN_H
#include "Wm5GraphicsLIB.h"
#include "Wm5Node.h"
#include "Wm5Camera.h"
#include "Wm5TerrainPage.h"
namespace Wm5
{
class WM5_GRAPHICS_ITEM Terrain : public Node
{
WM5_DECLARE_RTTI;
WM5_DECLARE_NAMES;
WM5_DECLARE_STREAM(Terrain);
public:
// Construction and destruction.
Terrain (const std::string& heightName, VertexFormat* vformat,
Camera* camera, int mode = FileIO::FM_DEFAULT_READ);
virtual ~Terrain ();
// Member access.
inline int GetRowQuantity () const;
inline int GetColQuantity () const;
inline int GetSize () const;
inline float GetMinElevation () const;
inline float GetMaxElevation () const;
inline float GetSpacing () const;
// Page management.
TerrainPage* GetPage (int row, int col);
TerrainPage* GetCurrentPage (float x, float y) const;
float GetHeight (float x, float y) const;
// Estimate a normal vector at (x,y) by using the neighbors (x+dx,y+dy),
// where (dx,dy) in {(s,0),(-s,0),(0,s),(0,-s)}. The value s is the
// spacing (returned by GetSpacing()).
AVector GetNormal (float x, float y) const;
// Allow a page to be replaced. The code unstitches the old page, loads
// the new page and stitches it, then returns the old page in case the
// application wants to cache it for quick reuse.
TerrainPagePtr ReplacePage (int row, int col,
const std::string& heightName, const std::string& heightSuffix);
TerrainPagePtr ReplacePage (int row, int col, TerrainPage* newPage);
// Update of active set of terrain pages.
void OnCameraMotion ();
protected:
void LoadHeader (const std::string& heightName);
void LoadPage (int row, int col, const std::string& heightName,
const std::string& heightSuffix);
// Read mode for the height header file and the terrain page data.
int mMode;
// Shared by the pages.
VertexFormatPtr mVFormat;
// Page information.
int mNumRows, mNumCols;
int mSize;
float mMinElevation, mMaxElevation, mSpacing;
TerrainPagePtr** mPages;
// Current page containing the camera.
int mCameraRow, mCameraCol;
CameraPtr mCamera;
};
WM5_REGISTER_STREAM(Terrain);
typedef Pointer0<Terrain> TerrainPtr;
#include "Wm5Terrain.inl"
}
#endif
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