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Tina6/tina-tools/tinatool/draw/drawPaint_line2.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_line2.c,v $
 37  * Date    :  $Date: 2003/10/01 16:02:47 $
 38  * Version :  $Revision: 1.2 $
 39  * CVS Id  :  $Id: drawPaint_line2.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_line2.h"
 49 
 50 #if HAVE_CONFIG_H
 51   #include <config.h>
 52 #endif
 53 
 54 #include <tina/sys/sysDef.h>
 55 #include <tina/sys/sysPro.h>
 56 #include <tina/math/mathDef.h>
 57 #include <tina/math/mathPro.h>
 58 #include <tina/geometry/geomDef.h>
 59 #include <tinatool/draw/draw_TvDef.h>
 60 #include <tinatool/draw/draw_TvPro.h>
 61 #include <tinatool/draw/draw_PaintDef.h>
 62 #include <tinatool/draw/draw_PaintPro.h>
 63 
 64 
 65 double  ipos_dist_seg();
 66 
 67 void    line2_draw(Tv * tv, Line2 * line)
 68 {
 69     Line2  *im_line;
 70 
 71     if (line == NULL)
 72         return;
 73 
 74     im_line = (Line2 *) prop_get(line->props, IMPOS);
 75     if (im_line == NULL)
 76         tv_line2(tv, line->p1, line->p2);
 77     else
 78         tv_line2(tv, im_line->p1, im_line->p2);
 79 }
 80 
 81 void    line2_list_draw(Tv * tv, List * list)
 82 {
 83     List   *ptr;
 84 
 85     for (ptr = list; ptr != NULL; ptr = ptr->next)
 86         line2_draw(tv, (Line2 *) ptr->to);
 87 }
 88 
 89 void    line2_str_draw(Tv * tv, Tstring * str)
 90 {
 91     List *ptr;
 92 
 93     if (str == NULL)
 94         return;
 95 
 96     for (ptr = str->start;; ptr = ptr->next)
 97     {
 98         line2_draw(tv, (Line2 *) ptr->to);
 99         if (ptr == str->end)
100             break;
101     }
102 }
103 
104 double  pick_line2_dist(Tv * tv, Ipos pos, Line2 * line)
105 {
106     Ipos    p1 = {Ipos_id};
107     Ipos    p2 = {Ipos_id};
108     Line2  *im_line;
109 
110     im_line = (Line2 *) prop_get(line->props, IMPOS);
111     if (im_line == NULL)
112     {
113         p1 = tv_proj2(tv, line->p1);
114         p2 = tv_proj2(tv, line->p2);
115     } else
116     {
117         p1 = tv_proj2(tv, im_line->p1);
118         p2 = tv_proj2(tv, im_line->p2);
119     }
120     return (ipos_dist_seg(pos, p1, p2));
121 }
122 

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