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Tina6/tina-tools/tinatool/draw/drawPaint_pick2.c

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  1 /**********
  2  *
  3  * Copyright (c) 2003, Division of Imaging Science and Biomedical Engineering,
  4  * University of Manchester, UK.  All rights reserved.
  5  * 
  6  * Redistribution and use in source and binary forms, with or without modification, 
  7  * are permitted provided that the following conditions are met:
  8  * 
  9  *   . Redistributions of source code must retain the above copyright notice, 
 10  *     this list of conditions and the following disclaimer.
 11  *    
 12  *   . Redistributions in binary form must reproduce the above copyright notice,
 13  *     this list of conditions and the following disclaimer in the documentation 
 14  *     and/or other materials provided with the distribution.
 15  * 
 16  *   . Neither the name of the University of Manchester nor the names of its
 17  *     contributors may be used to endorse or promote products derived from this 
 18  *     software without specific prior written permission.
 19  * 
 20  * 
 21  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" 
 22  * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 
 23  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 
 24  * ARE DISCLAIMED.  IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE 
 25  * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 
 26  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 
 27  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
 28  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 
 29  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 
 30  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 
 31  * POSSIBILITY OF SUCH DAMAGE.
 32  *
 33  **********
 34  *
 35  * Program :    TINA
 36  * File    :  $Source: /home/tina/cvs/tina-tools/tinatool/draw/drawPaint_pick2.c,v $
 37  * Date    :  $Date: 2003/10/01 16:02:47 $
 38  * Version :  $Revision: 1.2 $
 39  * CVS Id  :  $Id: drawPaint_pick2.c,v 1.2 2003/10/01 16:02:47 tony Exp $
 40  *
 41  * Author  : Legacy TINA
 42  *
 43  * Notes :
 44  *
 45  *********
 46 */
 47 
 48 #include "drawPaint_pick2.h"
 49 
 50 #if HAVE_CONFIG_H
 51   #include <config.h>
 52 #endif
 53 
 54 
 55 #include <stdio.h>
 56 #include <math.h>
 57 #include <tina/sys/sysDef.h>
 58 #include <tina/sys/sysPro.h>
 59 #include <tina/math/mathDef.h>
 60 #include <tina/math/mathPro.h>
 61 #include <tina/geometry/geomDef.h>
 62 #include <tinatool/draw/draw_TvDef.h>
 63 #include <tinatool/draw/draw_TvPro.h>
 64 #include <tinatool/draw/draw_PaintDef.h>
 65 #include <tinatool/draw/draw_PaintPro.h>
 66 
 67 double  geom_pick_dist(Tv * tv, Ipos pos, void *geom, int type)
 68 {
 69     double  d;
 70 
 71     switch (type)
 72     {
 73     case POINT2:
 74         d = pick_point2_dist(tv, pos, (Point2 *) geom);
 75         if (d < 6.0)
 76             d = 0.0;
 77         break;
 78     case LINE2:
 79         d = pick_line2_dist(tv, pos, (Line2 *) geom);
 80         break;
 81     case CONIC2:
 82         d = pick_conic2_dist(tv, pos, (Conic *) geom);
 83         break;
 84     case POINT3:
 85         d = pick_point3_dist(tv, pos, (Point3 *) geom);
 86         if (d < 6.0)
 87             d = 0.0;
 88         break;
 89     case LINE3:
 90         d = pick_line3_dist(tv, pos, (Line3 *) geom);
 91         break;
 92     case CONIC3:
 93         d = pick_conic3_dist(tv, pos, (Conic3 *) geom);
 94         break;
 95     case PLANE:
 96         d = pick_plane_dist(tv, pos, (Plane *) geom);
 97         break;
 98     default:
 99         d = 1e10;
100     }
101     return (d);
102 }
103 
104 void    geom_pick_closest(void *geom, int type, Tv_closest * tvc)
105 {
106     float   sep = (float)geom_pick_dist(tvc->tv, tvc->pos, geom, type);
107 
108     if (isnan(sep))
109     {
110         error("geom_pick_closest: NaN generated",non_fatal);
111         return;
112     }
113     if (tvc->ptr == NULL || sep < tvc->sep) 
114     {
115         tvc->ptr = geom;
116         tvc->sep = sep;
117         tvc->type = type;
118     }
119 }
120 
121 void   *tv_geom_list_pick_closest(Tv * tv, Ipos pos, List * geom, int *type)
122 {
123     Tv_closest tvc = {Tv_closest_id};
124 
125     tvc.tv = tv;
126     tvc.pos = pos;
127     tvc.ptr = NULL;
128 
129     reclist_list_apply(geom, geom_pick_closest, *type, (void *) &tvc);
130     *type = tvc.type;
131     return (tvc.ptr);
132 }
133 

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