Commit incomplete clickable image maps in the hopes that someone else

can run with that...

diff --git a/gpsbabel/tiger.c b/gpsbabel/tiger.c
index 8183b1e58535819e14eeb30a933a45551b771772..bafedc465f23da284d77963df90fa39f9be9471d 100644 (file)
--- a/gpsbabel/tiger.c
+++ b/gpsbabel/tiger.c
@@ -36,12 +36,24 @@ static char *genurl = NULL;
 static char *scale = "768";
 int scalev;
 
+/*
+ *   The code bracketed by CLICKMAP is to generate clickable image maps
+ *   for a web browser.   It's functional, but is missing the math to do
+ *   the projection transformations.   Some trig geek can finish that.
+ */
+#if CLICKMAP
+static char *clickmap = NULL;
+#endif
+
 
 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."},
+#if CLICKMAP
+       {"clickmap", &clickmap, "Generate Clickable map web page."},
+#endif
        {0, 0, 0}
 };
 
@@ -132,6 +144,18 @@ tiger_disp(const waypoint *wpt)
        fprintf(file_out, "\n");
 }
 
+static void
+map_plot(const waypoint *wpt)
+{
+       static int x,y;
+
+       /* Replace with real math. */
+       x+=10;
+       y+=10;
+
+       fprintf(linkf, "<area shape=\"circle\" coords=\"%d,%d,7\" href=\"%s\" alt=\"%s\"\n", x, y, wpt->url, wpt->description);
+}
+
 static void
 data_write(void)
 {
@@ -162,6 +186,20 @@ data_write(void)
                        fprintf(urlf, "&iwd=%s&iht=%s", scale, scale);
                }
                fclose(urlf);
+#if CLICKMAP
+               if (clickmap) {
+                       linkf = fopen(clickmap, "w");
+                       if (linkf == NULL) {
+                               fatal(MYNAME ": Cannot open '%s' for writing\n",
+                                               clickmap);
+                       }
+                       fprintf(linkf, "<map name=\"map\">\n");
+                       waypt_disp_all(map_plot);
+                       fprintf(linkf, "</map>\n");
+                       fclose(linkf);
+                       linkf = NULL;
+               }
+#endif
        }
 }