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Tina5/tina-tools/tinatool/draw/drawPaint_plane.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_plane.c,v $
 37  * Date    :  $Date: 2003/10/01 16:02:47 $
 38  * Version :  $Revision: 1.2 $
 39  * CVS Id  :  $Id: drawPaint_plane.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_plane.h"
 49 
 50 #if HAVE_CONFIG_H
 51   #include <config.h>
 52 #endif
 53 
 54 #include <math.h>
 55 #include <tina/sys/sysDef.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 static void tv_polygon3(Tv * tv, Vec3 centre, double radius, Vec3 normal, int sides)
 65 {
 66     int     i;
 67     double  dtheta = TWOPI / sides;
 68     double  x, y, theta;
 69     Vec3    ex = {Vec3_id};
 70     Vec3    ey = {Vec3_id};
 71     Vec3    ez = {Vec3_id};
 72     Vec3    p = {Vec3_id};
 73     Vec3    q = {Vec3_id};
 74 
 75     vec3_basis(normal, tv->ey3, &ex, &ey, &ez);
 76     ex = vec3_times(radius, ex);
 77     ey = vec3_times(radius, ey);
 78     p = vec3_sum(centre, ey);
 79     for (i = 1; i <= sides; i++)
 80     {
 81         theta = i * dtheta;
 82         x = sin(theta);
 83         y = cos(theta);
 84         q = vec3_sum3(centre, vec3_times(x, ex), vec3_times(y, ey));
 85         tv_line3(tv, p, q);
 86         p = q;
 87     }
 88 }
 89 
 90 void    plane_draw(Tv * tv, Plane * plane)
 91 {
 92     double  radius;
 93 
 94     if (tv == NULL || plane == NULL)
 95         return;
 96 
 97     radius = tv->width / (32.0 * tv->scalex);
 98     tv_polygon3(tv, plane->p, radius, plane->n, 5);
 99 }
100 
101 void    plane_list_draw(Tv * tv, List * list)
102 {
103     List   *ptr;
104 
105     for (ptr = list; ptr != NULL; ptr = ptr->next)
106     {
107         Plane  *plane = (Plane *) ptr->to;
108 
109         plane_draw(tv, plane);
110     }
111 }
112 
113 double  pick_plane_dist(Tv * tv, Ipos pos, Plane * plane)
114 {
115     Ipos    p = {Ipos_id};
116 
117     p = tv_proj3(tv, plane->p);
118     return (ipos_dist(pos, p));
119 }
120 

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