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Tina6/tina-libs/tina/image/imgSeq_voi.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-libs/tina/image/imgSeq_voi.c,v $
 37  * Date    :  $Date: 2003/09/30 16:53:49 $
 38  * Version :  $Revision: 1.6 $
 39  * CVS Id  :  $Id: imgSeq_voi.c,v 1.6 2003/09/30 16:53:49 ipoole Exp $
 40  *
 41  * Author  :  Legacy TINA
 42  */
 43 
 44 /** 
 45  *  @file
 46  *  @brief Volume of interest defined by a list of spline approximations
 47  *  to string data structures. 
 48  * 
 49  *  For those who need something more than a rectangle to define a regions of interest.
 50  *
 51  */
 52 
 53 //        Modified to remove all snake stuff MLJS 29/11/00
 54 
 55 
 56 #include "imgSeq_voi.h"
 57 
 58 #if HAVE_CONFIG_H
 59 #include <config.h>
 60 #endif
 61 
 62 #include <math.h>
 63 
 64 #include <tina/sys/sysDef.h>
 65 #include <tina/sys/sysPro.h>
 66 #include <tina/math/mathDef.h>
 67 #include <tina/math/mathPro.h>
 68 #include <tina/geometry/geomDef.h>
 69 #include <tina/geometry/geomPro.h>
 70 #include <tina/image/img_SeqDef.h>
 71 
 72 Seqvoi         *svoi_alloc(void)
 73 {
 74         Seqvoi         *voi = (Seqvoi *) ralloc(sizeof(Seqvoi));
 75 
 76         voi->string = NULL;
 77         voi->spline = NULL;
 78         return (voi);
 79 }
 80 
 81 void            svoi_free(Seqvoi * voi)
 82 {
 83         if (voi == NULL)
 84                 return;
 85         str_free(voi->string, rfree);
 86         spline2_free(voi->spline);
 87         rfree(voi);
 88 }
 89 
 90 void            svoi_empty(Seqvoi * voi)
 91 {
 92         if (voi == NULL)
 93                 return;
 94         spline2_free(voi->spline);
 95         voi->spline = NULL;
 96         str_free(voi->string, rfree);
 97         voi->string = NULL;
 98 }
 99 
100 void            svoi_string_changed(Seqvoi * voi)
101 {
102         if (voi == NULL)
103                 return;
104         spline2_free(voi->spline);
105         voi->spline = NULL;
106         voi->n = 0;
107 }
108 
109 /*
110 void svoi_spline_changed(Seqvoi * voi)
111 {
112     if (voi == NULL)
113         return;
114     str_free(voi->string, rfree);
115     voi->string = NULL;
116 }
117 */
118 
119 
120 Tstring        *svoi_string_get(Seqvoi * voi)
121 {
122         if (voi == NULL)
123                 return (NULL);
124 
125         if (voi->string != NULL)
126                 return (voi->string);
127 
128         if (voi->spline != NULL)
129         {
130                 voi->string = str2_of_spline2(voi->spline);
131                 return (voi->string);
132         }
133         return (NULL);
134 }
135 
136 Seqvoi         *svoi_copy(Seqvoi * oldvoi)
137 {
138         Seqvoi         *voi = (Seqvoi *) ralloc(sizeof(Seqvoi));
139         voi->string = str2_copy(svoi_string_get(oldvoi));
140         voi->spline = NULL;
141         voi->nspline = oldvoi->nspline;
142         voi->n = oldvoi->n;
143         return (voi);
144 }
145 
146 
147 void            svoi_string_set(Seqvoi * voi, Tstring * str)
148 {
149         svoi_empty(voi);
150         if (str2_area(str) < 0.0)
151                 str_reverse(str);
152         voi->string = str;
153 }
154 
155 Spline2        *svoi_spline_get(Seqvoi * voi)
156 {
157         Tstring        *string;
158 
159         if (voi == NULL)
160                 return (NULL);
161         if (voi->spline != NULL)
162                 return (voi->spline);
163 
164         string = svoi_string_get(voi);
165         if (string == NULL)
166                 return (NULL);
167         // this was commented out
168         // a.lacey@man.ac.uk 8.9.03
169         else
170         {
171                  int n = 8; 
172                  voi->spline = spline2_approx_str2(string, &n, 1.0); 
173                  return (voi->spline);
174         }
175 }
176 
177 void            svoi_spline_set(Seqvoi * voi, Spline2 * spline)
178 {
179         svoi_empty(voi);
180         voi->spline = spline;
181 }
182 
183 void            svoi_shift(Seqvoi * voi, Vec2 dp)
184 {
185         Tstring        *string = svoi_string_get(voi);
186         str2_translate(string, dp);
187         svoi_string_changed(voi);
188 }
189 

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