/usr/include/TopoFace/topoedge.h is in ivtools-dev 1.2.11a1-2.
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) 1994,1998 Vectaport, Inc.
*
* Permission to use, copy, modify, distribute, and sell this software and its
* documentation for any purpose is hereby granted without fee, provided
* that the above copyright notice appear in all copies and that both that
* copyright notice and this permission notice appear in supporting
* documentation, and that the names of the copyright holders not be used in
* advertising or publicity pertaining to distribution of the software without
* specific, written prior permission. The copyright holders make no
* representations about the suitability of this software for any purpose.
* It is provided "as is" without express or implied warranty.
*
* THE COPYRIGHT HOLDERS DISCLAIM ALL WARRANTIES WITH REGARD TO THIS SOFTWARE,
* INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS.
* IN NO EVENT SHALL THE COPYRIGHT HOLDERS BE LIABLE FOR ANY SPECIAL,
* INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING
* FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT,
* NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION
* WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
*/
#ifndef topo_edge_h
#define topo_edge_h
#include <TopoFace/topoelt.h>
class FMultiLineObj;
class FPointObj;
class TopoFace;
class TopoNode;
class TopoEdge : public TopoElement {
public:
TopoEdge(void* value = nil);
~TopoEdge();
void attach_nodes(TopoNode* start, TopoNode* end);
void remove_nodes();
void remove_start_node();
void remove_end_node();
void attach_faces(TopoFace* left, TopoFace* right);
void attach_start_node(TopoNode* start);
void attach_end_node(TopoNode* end);
TopoNode* start_node() const;
TopoNode* end_node() const;
TopoFace* left_face() const;
TopoFace* right_face() const;
boolean starts_at(TopoNode*) const;
boolean ends_at(TopoNode*) const;
FMultiLineObj* multiline();
FPointObj* point();
protected:
TopoNode* _start;
TopoNode* _end;
TopoFace* _left;
TopoFace* _right;
};
#endif
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