src/json.cc

   1 /* json.cc
   2  * Export from Aven as JSON.
   3  */
   4 /* Copyright (C) 2015,2016 Olly Betts
   5  *
   6  * This program is free software; you can redistribute it and/or modify
   7  * it under the terms of the GNU General Public License as published by
   8  * the Free Software Foundation; either version 2 of the License, or
   9  * (at your option) any later version.
  10  *
  11  * This program is distributed in the hope that it will be useful,
  12  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  13  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  14  * GNU General Public License for more details.
  15  *
  16  * You should have received a copy of the GNU General Public License
  17  * along with this program; if not, write to the Free Software
  18  * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301 USA
  19  */
  20
  21 #ifdef HAVE_CONFIG_H
  22 # include <config.h>
  23 #endif
  24
  25 #include "json.h"
  26
  27 #include "export.h"
  28
  29 #include <stdio.h>
  30
  31 using namespace std;
  32
  33 const int *
  34 JSON::passes() const
  35 {
  36     static const int default_passes[] = { LEGS, 0 };
  37     return default_passes;
  38 }
  39
  40 void
  41 JSON::header(const char * title, const char *, time_t datestamp_numeric,
  42              double min_x, double min_y, double min_z,
  43              double max_x, double max_y, double max_z)
  44 {
  45     (void)title;
  46     (void)datestamp_numeric;
  47 #if 0
  48     if (title) {
  49         fputs("title: \"", fh);
  50         json_escape(fh, title);
  51         fputs("\",\n", fh);
  52     }
  53     if (datestamp_numeric != time_t(-1)) {
  54         fprintf("date: %ld,\n", (long)datestamp_numeric);
  55     }
  56 #endif
  57     fprintf(fh, "var p = [%.2f,%.2f,%.2f,%.2f,%.2f,%.2f]\n",
  58             min_x, min_z, min_y, max_x, max_z, max_y);
  59     fputs("var groups = [\n", fh);
  60 }
  61
  62 void
  63 JSON::line(const img_point *p1, const img_point *p, unsigned /*flags*/, bool fPendingMove)
  64 {
  65     if (fPendingMove) {
  66         if (in_segment) {
  67             fputs("],\n[", fh);
  68         } else {
  69             fputs("[", fh);
  70             in_segment = true;
  71         }
  72         fprintf(fh, "[%.2f,%.2f,%.2f]", p1->x, p1->z, p1->y);
  73     }
  74     fprintf(fh, ",[%.2f,%.2f,%.2f]", p->x, p->z, p->y);
  75 }
  76
  77 void
  78 JSON::label(const img_point *p, const char *s, bool /*fSurface*/, int type)
  79 {
  80     (void)p;
  81     (void)s;
  82     (void)type;
  83 }
  84
  85 void
  86 JSON::footer()
  87 {
  88     if (in_segment)
  89         fputs("]\n", fh);
  90     fputs("];\n", fh);
  91 }