Add scaling and centering code to tiger output. Make output of description

optional.

diff --git a/gpsbabel/tiger.c b/gpsbabel/tiger.c
index ecf9370a10f6be7073a87dee86bc0e77bfd155c3..8183b1e58535819e14eeb30a933a45551b771772 100644 (file)
--- a/gpsbabel/tiger.c
+++ b/gpsbabel/tiger.c
@@ -24,10 +24,28 @@
 
 static FILE *file_in;
 static FILE *file_out;
+static FILE *linkf;
 static void *mkshort_handle;
 
 #define MYNAME "GPSUTIL"
 
+static double maxlat, maxlon, minlat, minlon, latsum, lonsum;
+int rec_cnt;
+static char *nolabels = NULL;
+static char *genurl = NULL;
+static char *scale = "768";
+int scalev;
+
+
+static
+arglist_t tiger_args[] = {
+       {"nolabels", &nolabels, "Suppress labels on generated pins."},
+       {"genurl", &genurl, "Generate file with lat/lon for centering map."},
+       {"scale", &scale, "Dimension in pixels of map."},
+       {0, 0, 0}
+};
+
+
 static void
 rd_init(const char *fname, const char *args)
 {
@@ -87,25 +105,64 @@ data_read(void)
 }
 
 static void
-gpsutil_disp(const waypoint *wpt)
+tiger_disp(const waypoint *wpt)
 {
        char *pin;
+       double lat = wpt->position.latitude.degrees;
+       double lon = wpt->position.longitude.degrees;
        if (wpt->creation_time > time(0) - 3600 * 24 * 14)
                pin = "greenpin";
        else
                pin = "redpin";
-       fprintf(file_out, "%f,%f:%s:%s\n", 
-               wpt->position.longitude.degrees,
-                wpt->position.latitude.degrees,
-                pin,
-                wpt->description);
+
+       if (genurl) {
+               if (lat > maxlat) maxlat = lat;
+               if (lon > maxlon) maxlon = lon;
+               if (lat < minlat) minlat = lat;
+               if (lon < minlon) minlon = lon;
+               latsum += lat;
+               lonsum += lon;
+               rec_cnt++;
+       }
+
+       fprintf(file_out, "%f,%f:%s", lon, lat, pin);
+       if (!nolabels) {
+               fprintf(file_out, ":%s", wpt->description);
+       }
+       fprintf(file_out, "\n");
 }
 
 static void
 data_write(void)
 {
+       maxlat = -9999.0;
+       maxlon = -9999.0;
+       minlat = 9999.0;
+       minlon = 9999.0;
+       rec_cnt = 0;
        fprintf(file_out, "#tms-marker\n");
-       waypt_disp_all(gpsutil_disp);
+       waypt_disp_all(tiger_disp);
+
+       if (genurl) {
+               FILE *urlf;
+
+               urlf = fopen(genurl, "w");
+               if (urlf == NULL) {
+                       fatal(MYNAME ": Cannot open '%s' for writing\n", 
+                                       genurl);
+               } 
+
+               fprintf(urlf, "lat=%f&lon=%f&wid=%f&ht=%f",
+                               latsum / rec_cnt,
+                               lonsum / rec_cnt,
+                               maxlat - minlat,
+                               maxlon - minlon);
+
+               if (scale) {
+                       fprintf(urlf, "&iwd=%s&iht=%s", scale, scale);
+               }
+               fclose(urlf);
+       }
 }
 
 
@@ -116,4 +173,5 @@ ff_vecs_t tiger_vecs = {
        wr_deinit,
        data_read,
        data_write,
+       tiger_args,
 };