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diff --git a/apps/graphics/traveler/src/trv_loadplanes.c b/apps/graphics/traveler/src/trv_loadplanes.c
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+/*******************************************************************************
+ * apps/graphics/traveler/src/trv_loadplanes.c
+ * This file contains the logic to load the world data from the opened file
+ *
+ * Copyright (C) 2014 Gregory Nutt. All rights reserved.
+ * Author: Gregory Nutt <gnutt@nuttx.org>
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in
+ * the documentation and/or other materials provided with the
+ * distribution.
+ * 3. Neither the name NuttX nor the names of its contributors may be
+ * used to endorse or promote products derived from this software
+ * without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
+ * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
+ * COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
+ * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
+ * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
+ * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
+ * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
+ * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGE.
+ *
+ ****************************************************************************/
+
+/****************************************************************************
+ * Included files
+ ****************************************************************************/
+
+#include "trv_types.h"
+#include "trv_plane.h"
+
+#include <stdio.h>
+#include <errno.h>
+
+/****************************************************************************
+ * Definitions
+ ****************************************************************************/
+
+/****************************************************************************
+ * Private Type Declarations
+ ***************************************************************************/
+
+/****************************************************************************
+ * Private Functions
+ ****************************************************************************/
+
+/****************************************************************************
+ * Name: trv_load_worldplane
+ *
+ * Description:
+ *
+ * This function loads the world data for one plane
+ *
+ ***************************************************************************/
+
+static int trv_load_worldplane(FAR FILE *fp, FAR struct trv_rect_head_s *head,
+ uint8_t nrects)
+{
+ FAR struct trv_rect_list_s *rect;
+ int ret;
+ int i;
+
+ for (i = 0; i < nrects; i++)
+ {
+ /* Allocate space for the next rectangle */
+
+ rect = trv_new_plane();
+ if (!rect)
+ {
+ return -ENOMEM;
+ }
+
+ /* Read the next rectangle from the input file */
+
+ ret = fread((char*)&rect->d, RESIZEOF_TRVRECTDATA_T, 1, fp);
+ if (ret != 1)
+ {
+ int errcode = errno;
+ fprintf(stderr, "Error: read of rectangle %d (of %d) failed\n",
+ i, nrects);
+ fprintf(stderr, "feof=%d ferror=%d errno=%d\n",
+ feof(fp), ferror(fp), errcode);
+ return -errcode;
+ }
+
+ /* Put the new rectangle into the plane list */
+
+ trv_add_plane(rect, head);
+ }
+
+ return OK;
+}
+
+/****************************************************************************
+ * Public Functions
+ ****************************************************************************/
+
+/****************************************************************************
+ * Function: trv_load_planes
+ * Description:
+ * This function loads the world data from the opened file
+ ***************************************************************************/
+
+int trv_load_planes(FAR FILE *fp)
+{
+ struct trv_planefile_header_s header;
+ int ret;
+
+ /* Read the plane file header */
+
+ ret = fread((char*)&header, SIZEOF_TRVPLANEFILEHEADER_T, 1, fp);
+ if (ret != 1)
+ {
+ int errcode = errno;
+ fprintf(stderr, "Error: Failed to read of file header\n");
+ fprintf(stderr, "feof=%d ferror=%d errno=%d\n",
+ feof(fp), ferror(fp), errcode);
+ return -errcode;
+ }
+
+ /* Then load each grid, performing run length (rle) decoding */
+
+ ret = trv_load_worldplane(fp, &g_xplane, header.nxrects);
+ if (ret == OK)
+ {
+ ret = trv_load_worldplane(fp, &g_yplane, header.nyrects);
+ }
+
+ if (ret == OK)
+ {
+ ret = trv_load_worldplane(fp, &g_zplane, header.nzrects);
+ }
+
+ return ret;
+}