00001 /* -*- Mode:C++; c-basic-offset:8; tab-width:8; indent-tabs-mode:t -*- */ 00002 /* 00003 * Copyright (c) 1997 Regents of the University of California. 00004 * All rights reserved. 00005 * 00006 * Redistribution and use in source and binary forms, with or without 00007 * modification, are permitted provided that the following conditions 00008 * are met: 00009 * 1. Redistributions of source code must retain the above copyright 00010 * notice, this list of conditions and the following disclaimer. 00011 * 2. Redistributions in binary form must reproduce the above copyright 00012 * notice, this list of conditions and the following disclaimer in the 00013 * documentation and/or other materials provided with the distribution. 00014 * 3. All advertising materials mentioning features or use of this software 00015 * must display the following acknowledgement: 00016 * This product includes software developed by the Computer Systems 00017 * Engineering Group at Lawrence Berkeley Laboratory. 00018 * 4. Neither the name of the University nor of the Laboratory may be used 00019 * to endorse or promote products derived from this software without 00020 * specific prior written permission. 00021 * 00022 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 00023 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 00024 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 00025 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 00026 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 00027 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 00028 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 00029 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 00030 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 00031 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 00032 * SUCH DAMAGE. 00033 */ 00034 /* Ported from CMU/Monarch's code, nov'98 -Padma.*/ 00035 00036 #ifndef __dem_h__ 00037 #define __dem_h__ 00038 00039 #ifndef __PRETTY_FUNCTION__ 00040 #define __PRETTY_FUNCTION__ ("") 00041 #endif /* !__PRETTY_FUNCTION__ */ 00042 00043 struct ARecord { 00044 char q_name[145]; 00045 int dl_code; 00046 int p_code; 00047 int pr_code; 00048 int z_code; 00049 float p_parm[15]; 00050 int g_units; /* ground planimetric coordinates */ 00051 int e_units; /* elevation coordinates */ 00052 int sides; 00053 float corners[4][2]; 00054 00055 float min_elevation; /* minimum and maximum elevations */ 00056 float max_elevation; 00057 00058 float angle; 00059 int a_code; /* Accuracy code */ 00060 00061 float x_res; /* Spatial Resolution */ 00062 float y_res; 00063 float z_res; 00064 00065 int rows; /* number of rows and columns of profiles */ 00066 int cols; 00067 }; 00068 00069 struct BRecord { 00070 int row_id; 00071 int col_id; 00072 int rows; 00073 int cols; 00074 float x_gpc; 00075 float y_gpc; 00076 float elevation; 00077 float min_elevation; 00078 float max_elevation; 00079 }; 00080 00081 00082 class DEMFile { 00083 public: 00084 DEMFile(char *s) : fname(s), demfile(0) { } 00085 ~DEMFile() { if(demfile) fclose(demfile); } 00086 int* process(void); 00087 void dump_ARecord(void); 00088 void dump_BRecord(void); 00089 void dump_grid(void); 00090 void range(double &x, double &y); 00091 void resolution(double &r); 00092 00093 private: 00094 int open(void); 00095 int read_int(void); 00096 float read_float(void); 00097 void read_field(void); 00098 00099 char *fname; 00100 FILE *demfile; 00101 struct ARecord a; 00102 struct BRecord b; 00103 int *grid; 00104 char tempbuf[1024]; 00105 }; 00106 00107 #endif /* __dem_h__ */ 00108