implement ImageMetaData classes

1 files changed, 93 insertions, 0 deletions

diff --git a/src/JpgcomImageMetaData.cxx b/src/JpgcomImageMetaData.cxx
new file mode 100644
index 0000000..39fb2b8
--- /dev/null
+++ b/src/JpgcomImageMetaData.cxx
@@ -0,0 +1,93 @@
+// 
+// Copyright 2006 by Johannes Hofmann
+//
+// This library is free software; you can redistribute it and/or
+// modify it under the terms of the GNU Library General Public
+// License as published by the Free Software Foundation; either
+// version 2 of the License, or (at your option) any later version.
+//
+// This library is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+// Library General Public License for more details.
+//
+// You should have received a copy of the GNU Library General Public
+// License along with this library; if not, write to the Free Software
+// Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
+// USA.
+//
+
+#include <stdlib.h>
+#include <stdio.h>
+#include <sys/wait.h>
+
+#include "util.h"
+
+#include "JpgcomImageMetaData.H"
+
+#define GIPFEL_FORMAT_1 "gipfel: longitude %lf, latitude %lf, height %lf, direction %lf, nick %lf, tilt %lf, scale %lf, projection type %d"
+#define GIPFEL_FORMAT_2 "gipfel: longitude %lf, latitude %lf, height %lf, direction %lf, nick %lf, tilt %lf, focallength_sensor_ratio %lf, projection type %d"
+
+int
+JpgcomImageMetaData::load_image(char *name) {
+	char * args[32];
+	FILE *p;
+	pid_t pid;
+	int status;
+	char buf[1024];
+	double lo, la, he, dir, ni, ti, fr;
+	int pt;
+	int ret = 1;
+
+	args[0] = "rdjpgcom";
+	args[1] = name;
+	args[2] = NULL;
+  
+	p = pexecvp(args[0], args, &pid, "r");
+
+	if (p) {
+		while (fgets(buf, sizeof(buf), p) != NULL) {
+			if (sscanf(buf, GIPFEL_FORMAT_2,
+					&lo, &la, &he, &dir, &ni, &ti, &fr, &pt) >= 7) {
+
+				longitude = lo;
+				latitude  = la;
+				height    = he;
+				direction = dir;
+				nick      = ni;
+				tilt      = ti;
+				focallength_sensor_ratio = fr;
+				projection_type = pt;	
+
+				ret = 0;
+
+				break;
+			} else if (sscanf(buf, GIPFEL_FORMAT_1,
+					&lo, &la, &he, &dir, &ni, &ti, &fr, &pt) >= 7) {
+
+				longitude = lo;
+				latitude  = la;
+				height    = he;
+				direction = dir;
+				nick      = ni;
+				tilt      = ti;
+				focallength_sensor_ratio = fr;
+				projection_type = pt;	
+
+				ret = 2; // special return value for compatibility with
+				         // old format
+
+				break;
+			}
+		}
+
+		fclose(p);
+		waitpid(pid, &status, 0); 
+		if (WEXITSTATUS(status) == 127 || WEXITSTATUS(status) == 126) {
+			fprintf(stderr, "%s not found\n", args[0]);
+		}
+	}
+
+	return ret;
+}
+