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/*************************************************************************
* Copyright (c) 2011 AT&T Intellectual Property
* All rights reserved. This program and the accompanying materials
* are made available under the terms of the Eclipse Public License v1.0
* which accompanies this distribution, and is available at
* https://www.eclipse.org/legal/epl-v10.html
*
* Contributors: Details at https://graphviz.org
*************************************************************************/
#pragma once
#include <util/api.h>
#ifdef __cplusplus
extern "C" {
#endif
#include <neatogen/defs.h>
#define tolerance_cg 1e-3
#define DFLT_ITERATIONS 200
#define DFLT_TOLERANCE 1e-4
/* some possible values for 'num_pivots_stress' */
#define num_pivots_stress 40
#define opt_smart_init 0x4
#define opt_exp_flag 0x3
/* Full dense stress optimization (equivalent to Kamada-Kawai's energy) */
/* Slowest and most accurate optimization */
PRIVATE int stress_majorization_kD_mkernel(vtx_data * graph, /* Input graph in sparse representation */
int n, /* Number of nodes */
double **coords, /* coordinates of nodes (output layout) */
node_t **nodes, /* original nodes */
int dim, /* dimensionality of layout */
int opts, /* option flags */
int model, /* model */
int maxi /* max iterations */
);
PRIVATE float *compute_apsp_packed(vtx_data * graph, int n);
PRIVATE float *compute_apsp_artificial_weights_packed(vtx_data *graph, int n);
PRIVATE float* circuitModel(vtx_data * graph, int nG);
PRIVATE float* mdsModel (vtx_data * graph, int nG);
PRIVATE int initLayout(int n, int dim, double **coords, node_t **nodes);
#ifdef __cplusplus
}
#endif
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