00001 /*************************************************************************** 00002 *cr 00003 *cr (C) Copyright 1995-2019 The Board of Trustees of the 00004 *cr University of Illinois 00005 *cr All Rights Reserved 00006 *cr 00007 ***************************************************************************/ 00008 00009 /*************************************************************************** 00010 * RCS INFORMATION: 00011 * 00012 * $RCSfile: GraphLayout.h,v $ 00013 * $Author: johns $ $Locker: $ $State: Exp $ 00014 * $Revision: 1.3 $ $Date: 2020年05月29日 16:48:55 $ 00015 * 00016 ***************************************************************************/ 00024 #include "ResizeArray.h" 00025 00026 class GraphLayout { 00027 private: 00028 ResizeArray<float> pos_x; // vertex x coord 00029 ResizeArray<float> pos_y; // vertex y coord 00030 00031 ResizeArray<float> dsp_x; // vertex x displacement 00032 ResizeArray<float> dsp_y; // vertex y displacement 00033 00034 ResizeArray<int> edges_v0; // explicit edge list 00035 ResizeArray<int> edges_v1; // explicit edge list 00036 ResizeArray<float> weights; // explicit edge weights 00037 00038 const float *weight_matrix; // external N^2 weight matrix 00039 00040 public: 00041 GraphLayout(int nverts, int nedges); // init size hints 00042 ~GraphLayout(); 00043 00044 void add_edge(int v0, int v1, float weight); 00045 void add_weight_matrix(const float *weight_matrix); 00046 00047 void init_positions_box(); 00048 void init_positions_circle(); 00049 00050 void compute(int iters, float area, float kscale, 00051 float tempscale, float distance_epsilon); 00052 00053 void get_vertex_ptrs(int &numverts, const float * &px, const float * &py) { 00054 numverts = pos_x.num(); 00055 px = &pos_x[0]; 00056 py = &pos_y[0]; 00057 } 00058 00059 }; 00060 00061 00062