/*-------------------------------------------------------------------- * $Id: xyz2grd.c 12947 2014-02-25 20:34:51Z pwessel $ * * Copyright (c) 1991-2014 by P. Wessel, W. H. F. Smith, R. Scharroo, J. Luis and F. Wobbe * See LICENSE.TXT file for copying and redistribution conditions. * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU Lesser General Public License as published by * the Free Software Foundation; version 3 or any later version. * * This program 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 Lesser General Public License for more details. * * Contact info: gmt.soest.hawaii.edu *--------------------------------------------------------------------*/ /* * Brief synopsis: xyz2grd reads a xyz file from standard input and creates the * corresponding grd-file. The input file does not have to be * sorted. xyz2grd will report if some nodes are missing. * * Author: Paul Wessel * Date: 1-JAN-2010 * Version: 5 API */ #define THIS_MODULE_NAME "xyz2grd" #define THIS_MODULE_LIB "core" #define THIS_MODULE_PURPOSE "Convert data table to a grid file" #include "gmt_dev.h" #define GMT_PROG_OPTIONS "-:RVbfhirs" GMT_OPT("FH") void GMT_str_tolower (char *string); struct XYZ2GRD_CTRL { struct In { bool active; char *file; } In; struct A { /* -A[f|l|n|m|r|s|u|z] */ bool active; char mode; } A; struct D { /* -D///////<remark> */ bool active; char *information; } D; struct E { /* -E[<nodata>] */ bool active; bool set; double nodata; } E; struct G { /* -G<output_grdfile> */ bool active; char *file; } G; struct I { /* -Idx[/dy] */ bool active; double inc[2]; } I; struct N { /* -N<nodata> */ bool active; double value; } N; struct S { /* -S */ bool active; char *file; } S; struct GMT_PARSE_Z_IO Z; }; void *New_xyz2grd_Ctrl (struct GMT_CTRL *GMT) { /* Allocate and initialize a new control structure */ struct XYZ2GRD_CTRL *C = NULL; C = GMT_memory (GMT, NULL, 1, struct XYZ2GRD_CTRL); /* Initialize values whose defaults are not 0/false/NULL */ C->N.value = GMT->session.d_NaN; C->Z.type = 'a'; C->Z.format[0] = 'T'; C->Z.format[1] = 'L'; return (C); } void Free_xyz2grd_Ctrl (struct GMT_CTRL *GMT, struct XYZ2GRD_CTRL *C) { /* Deallocate control structure */ if (!C) return; if (C->In.file) free (C->In.file); if (C->D.information) free (C->D.information); if (C->G.file) free (C->G.file); if (C->S.file) free (C->S.file); GMT_free (GMT, C); } int GMT_xyz2grd_usage (struct GMTAPI_CTRL *API, int level) { GMT_show_name_and_purpose (API, THIS_MODULE_LIB, THIS_MODULE_NAME, THIS_MODULE_PURPOSE); if (level == GMT_MODULE_PURPOSE) return (GMT_NOERROR); GMT_Message (API, GMT_TIME_NONE, "usage: xyz2grd [<table>] -G<outgrid> %s\n", GMT_I_OPT); GMT_Message (API, GMT_TIME_NONE, "\t%s [-A[f|l|m|n|r|s|u|z]]\n\t[%s]\n", GMT_Rgeo_OPT, GMT_GRDEDIT); GMT_Message (API, GMT_TIME_NONE, "\t[-N<nodata>] [-S[<zfile]] [%s] [-Z[<flags>]] [%s]\n\t[%s] [%s]\n\t[%s] [%s] [%s] [%s]\n", GMT_V_OPT, GMT_bi_OPT, GMT_f_OPT, GMT_h_OPT, GMT_i_OPT, GMT_r_OPT, GMT_s_OPT, GMT_colon_OPT); if (level == GMT_SYNOPSIS) return (EXIT_FAILURE); GMT_Message (API, GMT_TIME_NONE, "\t-G Sets name of the output grid file.\n"); GMT_Option (API, "IR"); GMT_Message (API, GMT_TIME_NONE, "\n\tOPTIONS:\n"); GMT_Option (API, "<"); GMT_Message (API, GMT_TIME_NONE, "\t-A Determine what to do if multiple entries are found for a node:\n"); GMT_Message (API, GMT_TIME_NONE, "\t -Af: Keep first value if multiple entries per node.\n"); GMT_Message (API, GMT_TIME_NONE, "\t -Al: Keep lower (minimum) value if multiple entries per node.\n"); GMT_Message (API, GMT_TIME_NONE, "\t -Am: Compute mean of multiple entries per node.\n"); GMT_Message (API, GMT_TIME_NONE, "\t -An: Count number of multiple entries per node.\n"); GMT_Message (API, GMT_TIME_NONE, "\t -Ar: Compute RMS of multiple entries per node.\n"); GMT_Message (API, GMT_TIME_NONE, "\t -As: Keep last value if multiple entries per node.\n"); GMT_Message (API, GMT_TIME_NONE, "\t -Au: Keep upper (maximum) value if multiple entries per node.\n"); GMT_Message (API, GMT_TIME_NONE, "\t -Az: Sum multiple entries at the same node.\n"); GMT_Message (API, GMT_TIME_NONE, "\t [Default will compute mean values].\n"); GMT_Message (API, GMT_TIME_NONE, "\t-D Append header information; leave field blank to get default value.\n"); GMT_Message (API, GMT_TIME_NONE, "\t-N Set value for nodes without input xyz triplet [Default is NaN].\n"); GMT_Message (API, GMT_TIME_NONE, "\t Z-table entries that equal <nodata> are replaced by NaN.\n"); GMT_Message (API, GMT_TIME_NONE, "\t-S Swap the byte-order of the input data and write result to <zfile>\n"); GMT_Message (API, GMT_TIME_NONE, "\t (or stdout if no file given). Requires -Z, and no grid file created!\n"); GMT_Message (API, GMT_TIME_NONE, "\t For this option, only one input file (or stdin) is allowed.\n"); GMT_Message (API, GMT_TIME_NONE, "\t Note: Cannot handle swapping of 64-bit integers.\n"); GMT_Option (API, "V"); GMT_Message (API, GMT_TIME_NONE, "\t-Z Set exact specification of incoming 1-column z-table.\n"); GMT_Message (API, GMT_TIME_NONE, "\t Unless -S is used, append two chars that indicate file organization:\n"); GMT_Message (API, GMT_TIME_NONE, "\t If data is in row format, state if first row is at T(op) or B(ottom).\n"); GMT_Message (API, GMT_TIME_NONE, "\t Then, append L or R to indicate starting point in row.\n"); GMT_Message (API, GMT_TIME_NONE, "\t If data is in column format, state if first columns is L(left) or R(ight).\n"); GMT_Message (API, GMT_TIME_NONE, "\t Then, append T or B to indicate starting point in column.\n"); GMT_Message (API, GMT_TIME_NONE, "\t To skip a header of size <n> bytes, append s<n> [<n> = 0].\n"); GMT_Message (API, GMT_TIME_NONE, "\t To swap the byte-order of each word, append w.\n"); GMT_Message (API, GMT_TIME_NONE, "\t Append x if gridline-registered, periodic data in x without repeating column at xmax.\n"); GMT_Message (API, GMT_TIME_NONE, "\t Append y if gridline-registered, periodic data in y without repeating row at ymax.\n"); GMT_Message (API, GMT_TIME_NONE, "\t Specify one of the following data types (all binary except a):\n"); GMT_Message (API, GMT_TIME_NONE, "\t A Ascii (multiple floating point values per record).\n"); GMT_Message (API, GMT_TIME_NONE, "\t a Ascii (one value per record).\n"); GMT_Message (API, GMT_TIME_NONE, "\t c int8_t, signed 1-byte character.\n"); GMT_Message (API, GMT_TIME_NONE, "\t u uint8_t, unsigned 1-byte character.\n"); GMT_Message (API, GMT_TIME_NONE, "\t h int16_t, signed 2-byte integer.\n"); GMT_Message (API, GMT_TIME_NONE, "\t H uint16_t, unsigned 2-byte integer.\n"); GMT_Message (API, GMT_TIME_NONE, "\t i int32_t, signed 4-byte integer.\n"); GMT_Message (API, GMT_TIME_NONE, "\t I uint32_t, unsigned 4-byte integer.\n"); GMT_Message (API, GMT_TIME_NONE, "\t l int64_t, signed long (8-byte) integer.\n"); GMT_Message (API, GMT_TIME_NONE, "\t L uint64_t, unsigned long (8-byte) integer.\n"); GMT_Message (API, GMT_TIME_NONE, "\t f 4-byte floating point single precision.\n"); GMT_Message (API, GMT_TIME_NONE, "\t d 8-byte floating point double precision.\n"); GMT_Message (API, GMT_TIME_NONE, "\t [Default format is scanline orientation in ASCII representation: -ZTLa].\n"); GMT_Message (API, GMT_TIME_NONE, "\t This option assumes all nodes have data values.\n"); GMT_Option (API, "bi3,f,h,i,r,s,:,."); return (EXIT_FAILURE); } int GMT_xyz2grd_parse (struct GMT_CTRL *GMT, struct XYZ2GRD_CTRL *Ctrl, struct GMT_Z_IO *io, struct GMT_OPTION *options) { /* This parses the options provided to xyz2grd and sets parameters in CTRL. * Any GMT common options will override values set previously by other commands. * It also replaces any file names specified as input or output with the data ID * returned when registering these sources/destinations with the API. */ unsigned int n_errors = 0, n_files = 0; uint64_t n_req; bool do_grid, b_only = false; char *ptr_to_arg = NULL; struct GMT_OPTION *opt = NULL; struct GMTAPI_CTRL *API = GMT->parent; memset (io, 0, sizeof(struct GMT_Z_IO)); /* Initialize with zero */ for (opt = options; opt; opt = opt->next) { switch (opt->option) { case '<': /* Input files */ if (n_files++ > 0) break; if ((Ctrl->In.active = GMT_check_filearg (GMT, '<', opt->arg, GMT_IN))) Ctrl->In.file = strdup (opt->arg); else n_errors++; break; /* Processes program-specific parameters */ case 'A': if (!opt->arg[0] && GMT_compat_check (GMT, 4)) { /* In GMT4, just -A implied -Az */ GMT_Report (API, GMT_MSG_COMPAT, "Warning: Option -A is deprecated; use -Az instead.\n"); Ctrl->A.active = true; Ctrl->A.mode = 'z'; } else if (!strchr ("flmnrsuz", opt->arg[0])) { GMT_Report (API, GMT_MSG_NORMAL, "Syntax error -A option: Select -Af, -Al, -Am, -An, -Ar, -As, -Au, or -Az\n"); n_errors++; } else { Ctrl->A.active = true; Ctrl->A.mode = opt->arg[0]; } break; case 'D': Ctrl->D.active = true; Ctrl->D.information = strdup (opt->arg); break; case 'E': if (GMT_compat_check (GMT, 4)) { GMT_Report (API, GMT_MSG_COMPAT, "Warning: Option -E is deprecated; use grdreformat instead.\n"); Ctrl->E.active = true; if (opt->arg[0]) { Ctrl->E.nodata = atof (opt->arg); Ctrl->E.set = true; } } else n_errors += GMT_default_error (GMT, opt->option); break; case 'G': if ((Ctrl->G.active = GMT_check_filearg (GMT, 'G', opt->arg, GMT_OUT))) Ctrl->G.file = strdup (opt->arg); else n_errors++; break; case 'I': Ctrl->I.active = true; if (GMT_getinc (GMT, opt->arg, Ctrl->I.inc)) { GMT_inc_syntax (GMT, 'I', 1); n_errors++; } break; case 'N': Ctrl->N.active = true; if (opt->arg[0]) Ctrl->N.value = (opt->arg[0] == 'N' || opt->arg[0] == 'n') ? GMT->session.d_NaN : atof (opt->arg); else { GMT_Report (API, GMT_MSG_NORMAL, "Syntax error -N option: Must specify value or NaN\n"); n_errors++; } break; case 'S': Ctrl->S.active = true; if (opt->arg[0]) Ctrl->S.file = strdup (opt->arg); break; case 'Z': Ctrl->Z.active = true; ptr_to_arg = opt->arg; break; default: /* Report bad options */ n_errors += GMT_default_error (GMT, opt->option); if (opt->option == 'b') b_only = true; break; } } GMT_check_lattice (GMT, Ctrl->I.inc, &GMT->common.r.registration, &Ctrl->I.active); if (Ctrl->Z.active) { if (Ctrl->S.active) Ctrl->Z.not_grid = true; /* The row/col organization does not apply */ n_errors += GMT_parse_z_io (GMT, ptr_to_arg, &Ctrl->Z); } n_errors += GMT_check_condition (GMT, Ctrl->S.active && !Ctrl->Z.active, "Syntax error -S option: Must also specify -Z\n"); if (Ctrl->S.active) { /* Reading and writing binary file */ if (n_files > 1) { GMT_Report (API, GMT_MSG_NORMAL, "Syntax error: -S can only handle one input file\n"); n_errors++; } else { strcpy (GMT->current.io.r_mode, "rb"); strcpy (GMT->current.io.w_mode, "wb"); } Ctrl->Z.swab = 1; /* Only swap on input */ } if (Ctrl->Z.active) { GMT_init_z_io (GMT, Ctrl->Z.format, Ctrl->Z.repeat, Ctrl->Z.swab, Ctrl->Z.skip, Ctrl->Z.type, io); GMT->common.b.type[GMT_IN] = Ctrl->Z.type; if (b_only) { GMT->common.b.active[GMT_IN] = false; GMT_Report (API, GMT_MSG_NORMAL, "Warning: -Z overrides -bi\n"); } } do_grid = !(Ctrl->S.active || Ctrl->E.active); if (do_grid) { n_errors += GMT_check_condition (GMT, !GMT->common.R.active, "Syntax error: Must specify -R option\n"); n_errors += GMT_check_condition (GMT, Ctrl->I.inc[GMT_X] <= 0.0 || Ctrl->I.inc[GMT_Y] <= 0.0, "Syntax error -I option: Must specify positive increment(s)\n"); } n_errors += GMT_check_condition (GMT, !Ctrl->S.active && !(Ctrl->G.active || Ctrl->G.file), "Syntax error option -G: Must specify output file\n"); n_req = (Ctrl->Z.active) ? 1 : ((Ctrl->A.mode == 'n') ? 2 : 3); n_errors += GMT_check_binary_io (GMT, n_req); return (n_errors ? GMT_PARSE_ERROR : GMT_OK); } #define bailout(code) {GMT_Free_Options (mode); return (code);} #define Return(code) {Free_xyz2grd_Ctrl (GMT, Ctrl); GMT_end_module (GMT, GMT_cpy); bailout (code);} int GMT_xyz2grd (void *V_API, int mode, void *args) { bool previous_bin_i = false, previous_bin_o = false; int error = 0, scol, srow; unsigned int zcol, row, col, i, *flag = NULL; uint64_t n_empty = 0, n_stuffed = 0, n_bad = 0, n_confused = 0; uint64_t ij, gmt_ij, n_read, n_filled = 0, n_used = 0, n_req; char c, Amode; double *in = NULL, wesn[4]; float no_data_f; void * (*save_i) (struct GMT_CTRL *, FILE *, uint64_t *, int *) = NULL; int (*save_o) (struct GMT_CTRL *, FILE *, uint64_t, double *); struct GMT_GRID *Grid = NULL; struct GMT_Z_IO io; struct XYZ2GRD_CTRL *Ctrl = NULL; struct GMT_CTRL *GMT = NULL, *GMT_cpy = NULL; struct GMT_OPTION *options = NULL; struct GMTAPI_CTRL *API = GMT_get_API_ptr (V_API); /* Cast from void to GMTAPI_CTRL pointer */ /*----------------------- Standard module initialization and parsing ----------------------*/ if (API == NULL) return (GMT_NOT_A_SESSION); if (mode == GMT_MODULE_PURPOSE) return (GMT_xyz2grd_usage (API, GMT_MODULE_PURPOSE)); /* Return the purpose of program */ options = GMT_Create_Options (API, mode, args); if (API->error) return (API->error); /* Set or get option list */ if (!options || options->option == GMT_OPT_USAGE) bailout (GMT_xyz2grd_usage (API, GMT_USAGE));/* Return the usage message */ if (options->option == GMT_OPT_SYNOPSIS) bailout (GMT_xyz2grd_usage (API, GMT_SYNOPSIS)); /* Return the synopsis */ /* Parse the command-line arguments */ GMT = GMT_begin_module (API, THIS_MODULE_LIB, THIS_MODULE_NAME, &GMT_cpy); /* Save current state */ if (GMT_Parse_Common (API, GMT_PROG_OPTIONS, options)) Return (API->error); Ctrl = New_xyz2grd_Ctrl (GMT); /* Allocate and initialize a new control structure */ if ((error = GMT_xyz2grd_parse (GMT, Ctrl, &io, options))) Return (error); /*---------------------------- This is the xyz2grd main code ----------------------------*/ n_req = (Ctrl->Z.active) ? 1 : ((Ctrl->A.mode == 'n') ? 2 : 3); /* Required input columns */ if (Ctrl->S.active) { /* Just swap data and bail */ int out_ID; unsigned w_mode = GMT_ADD_DEFAULT; save_i = GMT->current.io.input; /* Save previous i/0 parameters */ save_o = GMT->current.io.output; previous_bin_i = GMT->common.b.active[GMT_IN]; previous_bin_o = GMT->common.b.active[GMT_OUT]; GMT->current.io.input = GMT_z_input; /* Override input reader with chosen binary reader for selected type */ GMT->current.io.output = GMT_z_output; /* Override output writer with chosen binary writer for selected type */ GMT->common.b.active[GMT_IN] = io.binary; /* May have to set input binary as well */ GMT->common.b.active[GMT_OUT] = io.binary; /* May have to set output binary as well */ if ((error = GMT_set_cols (GMT, GMT_IN, 1))) Return (error); /* Initialize the i/o since we are doing record-by-record reading/writing */ GMT_Report (API, GMT_MSG_VERBOSE, "Swapping data bytes only\n"); if (Ctrl->S.active) io.swab = true; /* Need to pass swabbing down to the gut level */ /* Register the data source */ if (GMT_Init_IO (API, GMT_IS_DATASET, GMT_IS_NONE, GMT_IN, GMT_ADD_DEFAULT, 0, options) != GMT_OK) { /* Registers default input sources, unless already set via file */ Return (API->error); } if (Ctrl->S.file) { /* Specified an output file */ if ((out_ID = GMT_Register_IO (API, GMT_IS_DATASET, GMT_IS_FILE, GMT_IS_NONE, GMT_OUT, NULL, Ctrl->S.file)) == GMT_NOTSET) { Return (API->error); } w_mode = GMT_ADD_EXISTING; } if (GMT_Init_IO (API, GMT_IS_DATASET, GMT_IS_NONE, GMT_OUT, w_mode, 0, options) != GMT_OK) { /* Establishes data output to stdout */ Return (API->error); } if ((error = GMT_set_cols (GMT, GMT_IN, 1)) != GMT_OK) { /* We dont really care or know about columns so must use 1 */ Return (API->error); } if ((error = GMT_set_cols (GMT, GMT_OUT, 1)) != GMT_OK) { /* We dont really care or know about columns so must use 1 */ Return (API->error); } /* Initialize the i/o for doing record-by-record reading/writing */ if (GMT_Begin_IO (API, GMT_IS_DATASET, GMT_IN, GMT_HEADER_OFF) != GMT_OK) { /* Enables data input and sets access mode */ Return (API->error); } if (GMT_Begin_IO (API, GMT_IS_DATASET, GMT_OUT, GMT_HEADER_OFF) != GMT_OK) { /* Enables data output and sets access mode */ Return (API->error); } do { /* Keep returning records until we reach EOF */ if ((in = GMT_Get_Record (API, GMT_READ_DOUBLE, NULL)) == NULL) { /* Read next record, get NULL if special case */ if (GMT_REC_IS_ERROR (GMT)) /* Bail if there are any read errors */ Return (GMT_RUNTIME_ERROR); if (GMT_REC_IS_ANY_HEADER (GMT)) /* Skip all headers */ continue; if (GMT_REC_IS_EOF (GMT)) /* Reached end of file */ break; } /* Data record to process */ GMT_Put_Record (API, GMT_WRITE_DOUBLE, in); } while (true); GMT->current.io.input = save_i; /* Reset input pointer */ GMT->common.b.active[GMT_IN] = previous_bin_i; /* Reset input binary */ GMT->current.io.output = save_o; /* Reset output pointer */ GMT->common.b.active[GMT_OUT] = previous_bin_o; /* Reset output binary */ if (GMT_End_IO (API, GMT_IN, 0) != GMT_OK) { /* Disables further data input */ Return (API->error); } if (GMT_End_IO (API, GMT_OUT, 0) != GMT_OK) { /* Disables further data output */ Return (API->error); } Return (GMT_OK); /* We are done here */ } GMT_Report (API, GMT_MSG_VERBOSE, "Processing input table data\n"); /* PW: This is now done in grdreformat since ESRI Arc Interchange is a recognized format */ if (Ctrl->E.active && GMT_compat_check (GMT, 4)) { /* Read an ESRI Arc Interchange grid format in ASCII. This must be a single physical file. */ uint64_t n_left; double value; char line[GMT_BUFSIZ]; FILE *fp = GMT->session.std[GMT_IN]; if (Ctrl->In.file && (fp = GMT_fopen (GMT, Ctrl->In.file, "r")) == NULL) { GMT_Report (API, GMT_MSG_NORMAL, "Cannot open file %s\n", Ctrl->In.file); Return (EXIT_FAILURE); } if ((Grid = GMT_create_grid (GMT)) == NULL) Return (API->error); GMT_grd_init (GMT, Grid->header, options, false); Grid->header->registration = GMT_GRID_NODE_REG; GMT_fgets (GMT, line, GMT_BUFSIZ, fp); if (sscanf (line, "%*s %d", &Grid->header->nx) != 1) { GMT_Report (API, GMT_MSG_NORMAL, "Error decoding ncols record\n"); Return (EXIT_FAILURE); } GMT_fgets (GMT, line, GMT_BUFSIZ, fp); if (sscanf (line, "%*s %d", &Grid->header->ny) != 1) { GMT_Report (API, GMT_MSG_NORMAL, "Error decoding ncols record\n"); Return (EXIT_FAILURE); } GMT_fgets (GMT, line, GMT_BUFSIZ, fp); if (sscanf (line, "%*s %lf", &Grid->header->wesn[XLO]) != 1) { GMT_Report (API, GMT_MSG_NORMAL, "Error decoding xll record\n"); Return (EXIT_FAILURE); } if (!strncmp (line, "xllcorner", 9U)) Grid->header->registration = GMT_GRID_PIXEL_REG; /* Pixel grid */ GMT_fgets (GMT, line, GMT_BUFSIZ, fp); if (sscanf (line, "%*s %lf", &Grid->header->wesn[YLO]) != 1) { GMT_Report (API, GMT_MSG_NORMAL, "Error decoding yll record\n"); Return (EXIT_FAILURE); } if (!strncmp (line, "yllcorner", 9U)) Grid->header->registration = GMT_GRID_PIXEL_REG; /* Pixel grid */ GMT_fgets (GMT, line, GMT_BUFSIZ, fp); if (sscanf (line, "%*s %lf", &Grid->header->inc[GMT_X]) != 1) { GMT_Report (API, GMT_MSG_NORMAL, "Error decoding cellsize record\n"); Return (EXIT_FAILURE); } Grid->header->inc[GMT_Y] = Grid->header->inc[GMT_X]; Grid->header->xy_off = 0.5 * Grid->header->registration; Grid->header->wesn[XHI] = Grid->header->wesn[XLO] + (Grid->header->nx - 1 + Grid->header->registration) * Grid->header->inc[GMT_X]; Grid->header->wesn[YHI] = Grid->header->wesn[YLO] + (Grid->header->ny - 1 + Grid->header->registration) * Grid->header->inc[GMT_Y]; GMT_set_grddim (GMT, Grid->header); GMT_err_fail (GMT, GMT_grd_RI_verify (GMT, Grid->header, 1), Ctrl->G.file); GMT_Report (API, GMT_MSG_VERBOSE, "nx = %d ny = %d\n", Grid->header->nx, Grid->header->ny); n_left = Grid->header->nm; Grid->data = GMT_memory_aligned (GMT, NULL, Grid->header->nm, float); /* ESRI grids are scanline oriented (top to bottom), as are the GMT grids */ row = col = 0; fscanf (fp, "%s", line); GMT_str_tolower (line); if (!strcmp (line, "nodata_value")) { /* Found the optional nodata word */ fscanf (fp, "%lf", &value); if (Ctrl->E.set && !doubleAlmostEqualZero (value, Ctrl->E.nodata)) { GMT_Report (API, GMT_MSG_NORMAL, "Your -E%g overrides the nodata_value of %g found in the ESRI file\n", Ctrl->E.nodata, value); } else Ctrl->E.nodata = value; } else { /* Instead got the very first data value */ ij = GMT_IJP (Grid->header, row, col); value = atof (line); Grid->data[ij] = (value == Ctrl->E.nodata) ? GMT->session.f_NaN : (float) value; if (++col == Grid->header->nx) col = 0, row++; n_left--; } while (fscanf (fp, "%lf", &value) == 1 && n_left) { ij = GMT_IJP (Grid->header, row, col); Grid->data[ij] = (value == Ctrl->E.nodata) ? GMT->session.f_NaN : (float) value; if (++col == Grid->header->nx) col = 0, row++; n_left--; } GMT_fclose (GMT, fp); if (n_left) { GMT_Report (API, GMT_MSG_NORMAL, "Expected %" PRIu64 " points, found only %" PRIu64 "\n", Grid->header->nm, Grid->header->nm - n_left); Return (EXIT_FAILURE); } if (GMT_Write_Data (API, GMT_IS_GRID, GMT_IS_FILE, GMT_IS_SURFACE, GMT_GRID_ALL, NULL, Ctrl->G.file, Grid) != GMT_OK) { Return (API->error); } Return (EXIT_SUCCESS); } /* Here we will read either x,y,z or z data, using -R -I [-r] for sizeing */ no_data_f = (float)Ctrl->N.value; /* Set up and allocate output grid [note: zero padding specificied] */ if ((Grid = GMT_Create_Data (API, GMT_IS_GRID, GMT_IS_SURFACE, GMT_GRID_ALL, NULL, NULL, Ctrl->I.inc, \ GMT_GRID_DEFAULT_REG, 0, Ctrl->G.file)) == NULL) Return (API->error); Amode = Ctrl->A.active ? Ctrl->A.mode : 'm'; if (GMT->common.b.active[GMT_IN] && GMT->current.io.col_type[GMT_IN][GMT_Z] & GMT_IS_RATIME && GMT->current.io.fmt[GMT_IN][GMT_Z].type == GMT_FLOAT) { GMT_Report (API, GMT_MSG_NORMAL, "Warning: Your single precision binary input data are unlikely to hold absolute time coordinates without serious truncation.\n"); GMT_Report (API, GMT_MSG_NORMAL, "Warning: You must use double precision when storing absolute time coordinates in binary data tables.\n"); } if (Ctrl->D.active) GMT_decode_grd_h_info (GMT, Ctrl->D.information, Grid->header); GMT_Report (API, GMT_MSG_VERBOSE, "nx = %d ny = %d nm = %" PRIu64 " size = %" PRIuS "\n", Grid->header->nx, Grid->header->ny, Grid->header->nm, Grid->header->size); GMT_err_fail (GMT, GMT_set_z_io (GMT, &io, Grid), Ctrl->G.file); GMT_set_xy_domain (GMT, wesn, Grid->header); /* May include some padding if gridline-registered */ if (Ctrl->Z.active && Ctrl->N.active && GMT_is_dnan (Ctrl->N.value)) Ctrl->N.active = false; /* No point testing */ if (Ctrl->Z.active) { /* Need to override input method since reading single input column as z (not x,y) */ zcol = GMT_X; save_i = GMT->current.io.input; previous_bin_i = GMT->common.b.active[GMT_IN]; GMT->current.io.input = GMT_z_input; /* Override and use chosen input mode */ GMT->common.b.active[GMT_IN] = io.binary; /* May have to set binary as well */ in = GMT->current.io.curr_rec; GMT->current.io.fmt[GMT_IN][zcol].type = GMT_get_io_type (GMT, Ctrl->Z.type); } else { zcol = GMT_Z; flag = GMT_memory (GMT, NULL, Grid->header->nm, unsigned int); /* No padding needed for flag array */ GMT_memset (Grid->header->pad, 4, unsigned int); /* Algorithm below expects no padding; we repad at the end */ GMT->current.setting.io_nan_records = false; /* Cannot have x,y as NaNs here */ } if ((error = GMT_set_cols (GMT, GMT_IN, n_req)) != GMT_OK) { Return (error); } /* Initialize the i/o since we are doing record-by-record reading/writing */ if (GMT_Init_IO (API, GMT_IS_DATASET, GMT_IS_POINT, GMT_IN, GMT_ADD_DEFAULT, 0, options) != GMT_OK) { Return (API->error); /* Establishes data input */ } if (GMT_Begin_IO (API, GMT_IS_DATASET, GMT_IN, GMT_HEADER_ON) != GMT_OK) { Return (API->error); /* Enables data input and sets access mode */ } n_read = ij = 0; if (Ctrl->Z.active) for (i = 0; i < io.skip; i++) fread (&c, sizeof (char), 1, API->object[API->current_item[GMT_IN]]->fp); do { /* Keep returning records until we reach EOF */ if ((in = GMT_Get_Record (API, GMT_READ_DOUBLE, NULL)) == NULL) { /* Read next record, get NULL if special case */ if (GMT_REC_IS_ERROR (GMT)) /* Bail if there are any read errors */ Return (GMT_RUNTIME_ERROR); if (GMT_REC_IS_ANY_HEADER (GMT)) /* Skip all headers */ continue; if (GMT_REC_IS_EOF (GMT)) /* Reached end of file */ break; } /* Data record to process */ n_read++; if (Ctrl->Z.active) { /* Read separately because of all the possible formats */ if (ij == io.n_expected) { GMT_Report (API, GMT_MSG_NORMAL, "More than %" PRIu64 " records, only %" PRIu64 " was expected (aborting)!\n", ij, io.n_expected); Return (EXIT_FAILURE); } gmt_ij = io.get_gmt_ij (&io, Grid, ij); /* Convert input order to output node (with padding) as per -Z */ Grid->data[gmt_ij] = (Ctrl->N.active && in[zcol] == Ctrl->N.value) ? GMT->session.f_NaN : (float)in[zcol]; ij++; } else { /* Get x, y, z */ if (GMT_y_is_outside (GMT, in[GMT_Y], wesn[YLO], wesn[YHI])) continue; /* Outside y-range */ if (GMT_x_is_outside (GMT, &in[GMT_X], wesn[XLO], wesn[XHI])) continue; /* Outside x-range */ /* Ok, we are inside the region - process data */ scol = (int)GMT_grd_x_to_col (GMT, in[GMT_X], Grid->header); if (scol == -1) scol++, n_confused++; col = scol; if (col == Grid->header->nx) col--, n_confused++; srow = (int)GMT_grd_y_to_row (GMT, in[GMT_Y], Grid->header); if (srow == -1) srow++, n_confused++; row = srow; if (row == Grid->header->ny) row--, n_confused++; ij = GMT_IJ0 (Grid->header, row, col); /* Because padding is turned off we can use ij for both Grid and flag */ if (Amode == 'f') { /* Want the first value to matter only */ if (flag[ij] == 0) { /* Assign first value and that is the end of it */ Grid->data[ij] = (float)in[zcol]; flag[ij] = 1; } } else if (Amode == 's') { /* Want the last value to matter only */ Grid->data[ij] = (float)in[zcol]; /* Assign last value and that is it */ flag[ij] = 1; } else if (Amode == 'l') { /* Keep lowest value */ if (flag[ij]) { /* Already assigned the first value */ if (in[zcol] < (double)Grid->data[ij]) Grid->data[ij] = (float)in[zcol]; } else { /* First time, just assign the current value */ Grid->data[ij] = (float)in[zcol]; flag[ij] = 1; } } else if (Amode == 'u') { /* Keep highest value */ if (flag[ij]) { /* Already assigned the first value */ if (in[zcol] > (double)Grid->data[ij]) Grid->data[ij] = (float)in[zcol]; } else { /* First time, just assign the current value */ Grid->data[ij] = (float)in[zcol]; flag[ij] = 1; } } else if (Amode == 'r') { /* Add up squares in case we must rms */ Grid->data[ij] += (float)in[zcol] * (float)in[zcol]; flag[ij]++; } else { /* Add up in case we must sum or mean */ Grid->data[ij] += (float)in[zcol]; flag[ij]++; } n_used++; } } while (true); if (GMT_End_IO (API, GMT_IN, 0) != GMT_OK) { /* Disables further data input */ Return (API->error); } if (Ctrl->Z.active) { GMT->current.io.input = save_i; /* Reset pointer */ GMT->common.b.active[GMT_IN] = previous_bin_i; /* Reset binary */ if (ij != io.n_expected) { /* Input amount does not match expectations */ GMT_Report (API, GMT_MSG_NORMAL, "Found %" PRIu64 " records, but %" PRIu64 " was expected (aborting)!\n", ij, io.n_expected); Return (EXIT_FAILURE); } GMT_check_z_io (GMT, &io, Grid); /* This fills in missing periodic row or column */ } else { /* xyz data could have resulted in duplicates */ if (GMT_grd_duplicate_column (GMT, Grid->header, GMT_IN)) { /* Make sure longitudes got replicated */ uint64_t ij_west, ij_east; bool first_bad = true; for (row = 0; row < Grid->header->ny; row++) { /* For each row, look at west and east bin */ ij_west = GMT_IJ0 (Grid->header, row, 0); ij_east = GMT_IJ0 (Grid->header, row, Grid->header->nx - 1); if (flag[ij_west] && !flag[ij_east]) { /* Nothing in east bin, just copy from west */ Grid->data[ij_east] = Grid->data[ij_west]; flag[ij_east] = flag[ij_west]; } else if (flag[ij_east] && !flag[ij_west]) { /* Nothing in west bin, just copy from east */ Grid->data[ij_west] = Grid->data[ij_east]; flag[ij_west] = flag[ij_east]; } else { /* Both have some stuff, consolidate combined value into the west bin, then replicate to the east */ if (Amode == 'f' || Amode == 's') { /* Trouble since we did not store when we added these points */ if (first_bad) { GMT_Report (API, GMT_MSG_VERBOSE, "Using -Af|s with replicated longitude bins may give inaccurate values"); first_bad = false; } } else if (Amode == 'l') { if (Grid->data[ij_east] < Grid->data[ij_west]) Grid->data[ij_west] = Grid->data[ij_east]; } else if (Amode == 'u') { if (Grid->data[ij_east] > Grid->data[ij_west]) Grid->data[ij_west] = Grid->data[ij_east]; } else { /* Add up incase we must sum, rms or mean */ Grid->data[ij_west] += Grid->data[ij_east]; flag[ij_west] += flag[ij_east]; } /* Replicate: */ Grid->data[ij_east] = Grid->data[ij_west]; flag[ij_east] = flag[ij_west]; } } } for (ij = 0; ij < Grid->header->nm; ij++) { /* Check if all nodes got one value only */ if (flag[ij] == 1) { /* This catches nodes with one value or the -Al|u single values */ if (Amode == 'n') Grid->data[ij] = 1.0f; n_filled++; } else if (flag[ij] == 0) { n_empty++; Grid->data[ij] = no_data_f; } else { /* More than 1 value went to this node */ if (Amode == 'n') Grid->data[ij] = (float)flag[ij]; else if (Amode == 'm') Grid->data[ij] /= (float)flag[ij]; else if (Amode == 'r') Grid->data[ij] = (float)sqrt (Grid->data[ij] / (float)flag[ij]); /* implicit else means return the sum of the values */ n_filled++; n_stuffed++; } } GMT_free (GMT, flag); if (GMT_is_verbose (GMT, GMT_MSG_VERBOSE)) { char line[GMT_BUFSIZ], e_value[GMT_LEN32]; sprintf (line, "%s\n", GMT->current.setting.format_float_out); (GMT_is_dnan (Ctrl->N.value)) ? sprintf (e_value, "NaN") : sprintf (e_value, GMT->current.setting.format_float_out, Ctrl->N.value); GMT_Report (API, GMT_MSG_VERBOSE, "Data records read: %" PRIu64 " used: %" PRIu64 " nodes filled: %" PRIu64 " nodes empty: %" PRIu64 " [set to %s]\n", n_read, n_used, n_filled, n_empty, e_value); if (n_bad) GMT_Report (API, GMT_MSG_VERBOSE, "%" PRIu64 " records unreadable\n", n_bad); if (n_stuffed && Amode != 'n') GMT_Report (API, GMT_MSG_VERBOSE, "Warning - %" PRIu64 " nodes had multiple entries that were processed\n", n_stuffed); if (n_confused) GMT_Report (API, GMT_MSG_VERBOSE, "Warning - %" PRIu64 " values gave bad indices: Pixel vs Gridline registration confusion?\n", n_confused); } } GMT_grd_pad_on (GMT, Grid, GMT->current.io.pad); /* Restore padding */ if (GMT_Set_Comment (API, GMT_IS_GRID, GMT_COMMENT_IS_OPTION | GMT_COMMENT_IS_COMMAND, options, Grid)) Return (API->error); if (GMT_Write_Data (API, GMT_IS_GRID, GMT_IS_FILE, GMT_IS_SURFACE, GMT_GRID_ALL, NULL, Ctrl->G.file, Grid) != GMT_OK) { Return (API->error); } Return (GMT_OK); }