int main (int argc, char *argv[])
{
char inDataName[255], inMetaName[255], *baseName;
/* cla parsing */
handle_common_asf_args(&argc, &argv, "c2p");
/* After extracting the optional flags, should have 2 args left */
if (argc != 3)
usage(argv[0]);
/* Make sure input and output names are different */
if (strcmp(argv[1],argv[2])==SAME) {
printf("c2p: Input and output names cannot be the same. Exiting.\n");
exit(EXIT_FAILURE);
}
// Assign filenames and check their existence
baseName = (char *) MALLOC(sizeof(char)*255);
baseName = get_basename(argv[1]);
sprintf(inDataName, "%s.img", baseName);
if (!fileExists(inDataName))
asfPrintError("Data file (%s) does not exist.\n", inDataName);
sprintf(inMetaName, "%s.meta", baseName);
if (!fileExists(inMetaName))
asfPrintError("Metadata file (%s) does not exist.\n", inMetaName);
/* Do it! */
c2p_ext(inDataName, inMetaName, argv[2], FALSE, FALSE);
if (logflag)
FCLOSE(fLog);
return 0;
}
size_t FREAD_CHECKED(void *ptr, size_t size, size_t nitems, FILE *stream, int short_ok)
{
size_t ret = 0;
if (ptr == NULL || ptr < 0) {
asfPrintError("Programmer error: Invalid data pointer passed to FREAD_CHECKED\n");
}
if (stream == NULL || stream < 0) {
asfPrintError("Programmer error: Invalid FILE stream passed to FREAD_CHECKED\n");
}
if (size < 1) {
asfPrintError("Programmer error: Invalid data size (%d) passed to FREAD_CHECKED\n", size);
}
if (nitems < 0) {
asfPrintError("Programmer error: Invalid number of items (%d) to FREAD_CHECKED\n", nitems);
}
ret = fread(ptr, size, nitems, stream);
if (ret < nitems && !short_ok) {
asfPrintError("File too short. FREAD_CHECKED attempted to read %d bytes past end of file\n",
(nitems * size) - ret);
}
return ret;
}
static void add_pixels(FloatImage *out, char *file,
double start_x, double start_y,
double per_x, double per_y)
{
meta_parameters *meta = meta_read(file);
if (!meta) {
asfPrintError("Couldn't read metadata for: %s!\n", file);
}
// figure out where in the giant image these pixels will go
int start_line, start_sample;
// this should work even if per_x / per_y are negative...
start_sample = (int) ((meta->projection->startX - start_x) / per_x + .5);
start_line = (int) ((meta->projection->startY - start_y) / per_y + .5);
int ns = meta->general->sample_count;
int nl = meta->general->line_count;
asfPrintStatus(" Location in combined is S:%d-%d, L:%d-%d\n",
start_sample, start_sample + ns,
start_line, start_line + nl);
if (start_sample + ns > out->size_x || start_line + nl > out->size_y) {
asfPrintError("Image extents were not calculated correctly!\n");
}
FILE *img = fopenImage(file, "rb");
if (!img) {
asfPrintError("Couldn't open image file: %s!\n", file);
}
float *line = MALLOC(sizeof(float)*ns);
int y;
for (y=0; y<nl; ++y) {
get_float_line(img, meta, y, line);
int x;
for (x=0; x<ns; ++x) {
float v = line[x];
// don't write out "no data" values
if (v != meta->general->no_data)
float_image_set_pixel(out, x + start_sample, y + start_line, v);
}
asfLineMeter(y, nl);
}
fclose(img);
free(line);
meta_free(meta);
}
void filter_srfs(char *sensor, char *beam_mode, char *input_dir,
char *output_dir)
{
struct dirent *dp;
struct stat statbuf;
DIR *dir;
int nFiles= 0;
char file_name[25], source[1024], target[1024];
// Some more error checking on beam modes
if (strcmp_case(sensor, "R1") == 0) {
if (strcmp_case(beam_mode, "FN1") != 0 &&
strcmp_case(beam_mode, "FN2") != 0 &&
strcmp_case(beam_mode, "FN3") != 0 &&
strcmp_case(beam_mode, "FN4") != 0 &&
strcmp_case(beam_mode, "FN5") != 0 &&
strcmp_case(beam_mode, "ST1") != 0 &&
strcmp_case(beam_mode, "ST2") != 0 &&
strcmp_case(beam_mode, "ST3") != 0 &&
strcmp_case(beam_mode, "ST4") != 0 &&
strcmp_case(beam_mode, "ST5") != 0 &&
strcmp_case(beam_mode, "ST6") != 0 &&
strcmp_case(beam_mode, "ST7") != 0)
asfPrintError("Unknown beam mode '%s' for sensor '%s'.\n",
beam_mode, sensor);
}
else if (strcmp_case(sensor, "E1") == 0 || strcmp_case(sensor, "E2") == 0 ||
strcmp_case(sensor, "J1") == 0) {
if (strcmp_case(beam_mode, "STD") != 0)
asfPrintError("Unknown beam mode '%s' for sensor '%s'.\n",
beam_mode, sensor);
}
// Read directory for scan results files of sensor + beam mode
asfPrintStatus("Filtering scan results file directory ...\n\n");
chdir(input_dir);
dir = opendir(input_dir);
while ((dp = readdir(dir)) != NULL) {
if (stat(dp->d_name, &statbuf) == -1)
continue;
sprintf(file_name, "%s", dp->d_name);
if (get_basic_info(file_name, sensor, beam_mode) &&
!S_ISDIR(statbuf.st_mode)) {
sprintf(source, "%s/%s", input_dir, file_name);
sprintf(target, "%s/%s", output_dir, file_name);
fileCopy(source, target);
nFiles++;
asfPrintStatus("\rNumber of scan results files read: %6d", nFiles);
}
}
closedir(dir);
printf("\n");
}
static GdkPixbuf * make_small_image(int force, ThumbnailData *tdata,
ImageInfo *ii)
{
if (!pixbuf_small || force) {
if (pixbuf_small) {
g_object_unref(pixbuf_small);
pixbuf_small = NULL;
}
if (!tdata)
tdata = get_thumbnail_data(ii);
int tsx = tdata->size_x;
int tsy = tdata->size_y;
// Create the pixbuf
GdkPixbuf *pb =
gdk_pixbuf_new_from_data(tdata->data, GDK_COLORSPACE_RGB, FALSE,
8, tsx, tsy, tsx*3, destroy_pb_data, NULL);
if (!pb)
asfPrintError("Failed to create the small pixbuf.\n");
// Scale down to the size we actually want, using the built-in Gdk
// scaling method, much nicer than what we did above
// Must ensure we scale the same in each direction
double scale_y = (double)tsy / THUMB_SIZE;
double scale_x = (double)tsx / THUMB_SIZE;
double scale = scale_y > scale_x ? scale_y : scale_x;
small_image_x_dim = tsx / scale;
small_image_y_dim = tsy / scale;
//printf("Scaling to %dx%d\n", small_image_x_dim, small_image_y_dim);
pixbuf_small =
gdk_pixbuf_scale_simple(pb, small_image_x_dim, small_image_y_dim,
GDK_INTERP_BILINEAR);
gdk_pixbuf_unref(pb);
if (!pixbuf_small)
asfPrintError("Failed to allocate scaled thumbnail pixbuf\n");
free(tdata);
}
GdkPixbuf *pb2 = gdk_pixbuf_copy(pixbuf_small);
put_bounding_box(pb2, ii);
return pb2;
}
int fftMatch_proj(char *inFile1, char *inFile2, float *offsetX, float *offsetY, float *certainty)
{
// Determine the offsets based on metadata
meta_parameters *refMeta = meta_read(inFile1);
if (!refMeta->projection)
asfPrintError("File (%s) is not map projected!\n", inFile1);
meta_parameters *testMeta = meta_read(inFile2);
if (!testMeta->projection)
asfPrintError("File (%s) is not map projected!\n", inFile2);
double testStartX = testMeta->projection->startX +
testMeta->general->start_sample*testMeta->projection->perX;
double testStartY = testMeta->projection->startY +
testMeta->general->start_line*testMeta->projection->perY;
double refStartX = refMeta->projection->startX +
refMeta->general->start_sample*refMeta->projection->perX;
double refStartY = refMeta->projection->startY +
refMeta->general->start_line*refMeta->projection->perY;
float diffX = (testStartX - refStartX) / testMeta->projection->perX;
float diffY = (testStartY - refStartY) / testMeta->projection->perY;
meta_free(refMeta);
meta_free(testMeta);
// Figure out what FFT parameters are going to be
int size = 512;
double tol = -1;
float diff;
if (fabs(diffX) > fabs(diffY))
diff = fabs(diffX);
else
diff = fabs(diffY);
while ((size/4) < diff) {
size *= 2;
}
int overlap = size / 2;
// Determine the offsets based on mapping
float offX, offY, cert;
asfPrintStatus("Determing offsets by FFT matching\n\n");
fftMatch_gridded(inFile1, inFile2, NULL, &offX, &offY, &cert, size, tol,
overlap);
*certainty = cert;
// Compare both offsets
*offsetX = diffX - offX;
*offsetY = diffY - offY;
return (0);
}
int to_sr_pixsiz(const char *infile, const char *outfile, double pixel_size)
{
meta_parameters *inMeta = meta_read(infile);
int ret;
if (inMeta->sar && inMeta->sar->image_type == 'G') {
// ground range image
ret = gr2sr_pixsiz(infile, outfile, pixel_size);
}
else if (inMeta->sar && inMeta->sar->image_type == 'S') {
// already a slant range image, just copy it
copyImgAndMeta(infile, outfile);
ret = 0; // success
}
else if ((inMeta->sar && inMeta->sar->image_type == 'P') ||
(inMeta->projection)) {
// projected image
ret = proj_to_sr(infile, outfile, pixel_size);
}
else if (inMeta->sar && inMeta->transform &&
inMeta->sar->image_type == 'R') {
// georeferenced, ALOS most likely
ret = proj_to_sr(infile, outfile, pixel_size);
}
else {
asfPrintError("Couldn't figure out what kind of image this is.\n");
ret = 1;
}
meta_free(inMeta);
return ret;
}
static void check(int num, double a, double b)
{
if (a==b || fabs(a-b)<0.0000001)
return;
asfPrintError("Failed test %d -- %f %f\n", num, a, b);
}
/******************************************************************************
* fileCopy:
* Copy the file specified by "src" to the file specified by "dst". Error
* checking is taken care of by the caplib functions (ie FOPEN, FWRITE, etc) */
void fileCopy(const char *src, const char *dst)
{
char buffer[BUFFER_SIZE];
FILE *srcFp;
FILE *dstFp;
unsigned int amount;
srcFp = FOPEN( src, "rb" );
dstFp = FOPEN( dst, "wb" );
do {
amount = fread( buffer, sizeof(char), BUFFER_SIZE, srcFp );
if (amount) {
int a = fwrite( buffer, sizeof(char), amount, dstFp );
if (a<amount) {
asfPrintError("Error copying file %s -> %s\n"
"Only %d of %d bytes written.\n%s\n",
src, dst, a, amount, strerror(errno));
}
}
/* when amount read is < BUFSZ, copy is done */
} while (amount == BUFFER_SIZE);
FCLOSE(srcFp);
FCLOSE(dstFp);
}
int ll2rb(double lon_r, double lat_r,
double lon_t, double lat_t,
double *range, double *bearing)
{
double radius = 1.0;
double x1, y1, z1,
x2, y2, z2,
x3, y3, z3;
// Fix for someone who passed in longitudes that go from -180 to +180 instead of 0-360
double _lon_r = (lon_r < 0.0) ? lon_r + 360.0 : lon_r;
double _lon_t = (lon_t < 0.0) ? lon_t + 360.0 : lon_t;
if (lat_r < -90.0 || lat_r > 90.0 ||
lat_t < -90.0 || lat_t > 90.0 ||
_lon_r < 0.0 || lon_r >= 360.0 ||
_lon_t < 0.0 || lon_t >= 360.0)
{
asfPrintError("ll2rb() latitude/longitude out of range. Found:\n"
" (lat_r, lon_r) = (%0.2f, %0.2f)\n"
" (lat_t, lon_t) = (%0.2f, %0.2f)\n",
lat_r, lon_r, lat_t, lon_t);
}
polrec3d(radius, (90.0 - lat_t) * D2R, _lon_t * D2R, &x1, &y1, &z1);
rot_3d(Z_AXIS, x1, y1, z1, -(180.0 - _lon_r) * D2R, &x2, &y2, &z2);
rot_3d(Y_AXIS, x2, y2, z2, -(90.0 - lat_r) * D2R, &x3, &y3, &z3);
recpol3d(x3, y3, z3, &radius, range, bearing);
g_assert(*bearing > 0.0); // Should never happen. Drill down to recpol() below.
g_assert((*bearing * R2D) <= 360.0); // Ditto...
*bearing = fmod(360.0 - (*bearing * R2D), 360.0);
return 0;
}
// Assumes angle is in radians. Axis is defined by X = 1, Y = 2, and Z = 3
int rot_3d(int axis,
double x, double y, double z, double angle,
double *xrot, double *yrot, double *zrot)
{
double c = cos(angle);
double s = sin(angle);
switch (axis) {
case 1:
// Rotate around the X-Axis
*xrot = x;
*yrot = c*y + s*z;
*zrot = -s*y + c*z;
break;
case 2:
// Rotate around the Y-Axis
*xrot = c*x - s*z;
*yrot = y;
*zrot = s*x + c*z;
break;
case 3:
// Rotate around the Z-Axis
*xrot = c*x + s*y;
*yrot = -s*x + c*y;
*zrot = z;
break;
default:
// Should never reach here (duhhhh)
asfPrintError("Bad axis number (%d). Use 1 for X axis, 2 for Y axis, and 3 for Z axis.\n",
axis);
break;
}
return 0;
}
// Fit a polynomial to a function using linear least-squares
// Unlike the IDL function poly_fit, this routine is limited to degree==2
double *poly_fit(double *y, double *x,
int ix1, int ix2, int ix3, int degree,
double *fit)
{
g_assert(y != NULL && x != NULL);
if (degree != 2) asfPrintError("poly_fit() only supports 2nd degree polynomial fits...\n");
double *coeffs = (double *)MALLOC(3 * sizeof(double));
double x1 = x[ix1];
double x2 = x[ix2];
double x3 = x[ix3];
double y1 = y[ix1];
double y2 = y[ix2];
double y3 = y[ix3];
double M = y1 - y2;
double N = y3 - y2;
double P = x1 - x2;
double Q = x3 - x1;
double R = x3 - x2;
double S = x2*x2 - x1*x1;
coeffs[0] = (N/(R*Q)) - (M/(P*Q)); // a
coeffs[1] = (M + coeffs[0]*S)/P; // b
coeffs[2] = y1 - coeffs[0]*x1*x1 - coeffs[1]*x1; // c
return coeffs;
}
static float
interp_demData(float *demData, int nl, int ns, double l, double s)
{
if (l<0 || l>=nl-1 || s<0 || s>=ns-1) {
return 0;
}
int ix = (int)s;
int iy = (int)l;
int bilinear = l<3 || l>=nl-3 || s<3 || s>=ns-3;
//int bilinear = 1;
if (bilinear) {
float p00 = demData[ix + ns*(iy )];
float p10 = demData[ix+1 + ns*(iy )];
float p01 = demData[ix + ns*(iy+1)];
float p11 = demData[ix+1 + ns*(iy+1)];
return (float)bilinear_interp_fn(s-ix, l-iy, p00, p10, p01, p11);
}
else {
double ret, x[4], y[4], xi[4], yi[4];
int ii;
for (ii=0; ii<4; ++ii) {
y[0] = demData[ix-1 + ns*(iy+ii-1)];
y[1] = demData[ix + ns*(iy+ii-1)];
y[2] = demData[ix+1 + ns*(iy+ii-1)];
y[3] = demData[ix+2 + ns*(iy+ii-1)];
x[0] = ix - 1;
x[1] = ix;
x[2] = ix + 1;
x[3] = ix + 2;
gsl_interp_accel *acc = gsl_interp_accel_alloc ();
gsl_spline *spline = gsl_spline_alloc (gsl_interp_cspline, 4);
gsl_spline_init (spline, x, y, 4);
yi[ii] = gsl_spline_eval_check(spline, s, acc);
gsl_spline_free (spline);
gsl_interp_accel_free (acc);
xi[ii] = iy + ii - 1;
}
gsl_interp_accel *acc = gsl_interp_accel_alloc ();
gsl_spline *spline = gsl_spline_alloc (gsl_interp_cspline, 4);
gsl_spline_init (spline, xi, yi, 4);
ret = gsl_spline_eval_check(spline, l, acc);
gsl_spline_free (spline);
gsl_interp_accel_free (acc);
return (float)ret;
}
asfPrintError("Impossible.");
}
/*******************************************************
* slantRange2groundPixel:
* Calculate the ground range pixel from the total slant
* range*/
int slantRange2groundPixel(meta_parameters *meta,double slant)
{
double a,x,y,Gr0, GrX;
double Rsc, Re;
int groundPixel;
Rsc = meta_get_sat_height(meta, meta->general->line_count/2, 0);
Re = meta_get_earth_radius(meta, meta->general->line_count/2, 0);
a = (Rsc-Re)/Re;
x = 1+a;
y = meta->sar->slant_range_first_pixel / Re;
Gr0 = Re * acos((1.0 + x*x - y*y) / (2.0 * x));
y = slant/Re;
GrX = Re * acos((1.0 + x*x - y*y) / (2.0 * x));
if (!meta_is_valid_double(Gr0) || !meta_is_valid_double(GrX)) {
asfPrintError("Cannot convert slant range to ground range.\n");
}
if (meta && meta->projection && meta_is_valid_double(meta->projection->perX)) {
groundPixel = (int) ((GrX-Gr0)/meta->projection->perX)+0.5;
// printf("Slant %f :: ",slant);
// printf("GP = (%f-%f) / %f = %i\n",GrX,Gr0,meta->projection->perX,groundPixel);
}
else if (meta &&
meta->general->data_type != COMPLEX_BYTE &&
meta->general->data_type != COMPLEX_INTEGER16 &&
meta->general->data_type != COMPLEX_INTEGER32 &&
meta->general->data_type != COMPLEX_REAL32 &&
meta->general->data_type != COMPLEX_REAL64
)
{
groundPixel = (int) ((GrX-Gr0)/meta->general->x_pixel_size)+0.5;
// printf("Slant %f :: ",slant);
// printf("GP = (%f-%f) / %f = %i\n",GrX,Gr0,meta->general->x_pixel_size,groundPixel);
}
else {
groundPixel=0; // just to quiet the compiler warning
asfPrintError("Cannot convert slant range to ground range without a valid perX size.\n");
}
return(groundPixel);}
static char *get_arclist_from_settings(char *sensor)
{
if (strcmp_case(sensor, "ERS-1") == 0 ||
strcmp_case(sensor, "ERS-2") == 0)
{
char *settings_file = find_in_share("mapready_settings.cfg");
if (!settings_file) {
asfPrintWarning("Could not find mapready_settings.cfg");
return NULL;
}
char match_str[256];
char *arclist = NULL;
sprintf(match_str, "precise orbits %s", sensor);
FILE *fSettings = FOPEN(settings_file, "r");
if (fSettings) {
char line[1024];
while (fgets(line, 1024, fSettings) != NULL) {
if (strncmp(line, match_str, strlen(match_str)) == 0) {
arclist = read_str(line, match_str);
if (strcmp_case(arclist, "<location of arclist file>") == 0)
strcpy(arclist, "");
break;
}
}
FCLOSE(fSettings);
if (!arclist || strlen(arclist) == 0) {
// not an error, user probably does not have precision state vectors
asfPrintStatus("No precise orbits found in mapready_settings.cfg for %s\n",
sensor);
}
FREE(settings_file);
return arclist;
}
else {
asfPrintError("Could not open mapready_settings.cfg");
return NULL;
}
}
else {
asfPrintError("Internal error, bad sensor: %s\n", sensor);
return NULL;
}
// not reached
return NULL;
}
void ddr2hdr(struct DDR *ddr, jpl_header *hdr)
{
// Make sure we've got allocated stuctures
if (ddr == NULL) {
asfPrintError("%s: ddr structure has not been allocated!", __func__);
}
if (hdr == NULL) {
asfPrintError("%s: hdr structure has not been allocated!", __func__);
}
// Initialize just for fun
hdr->magnitude_bytes = 0;
hdr->elevation_bytes = 0;
strcpy(hdr->data_type, "0");
hdr->elevation_scale = 0;
hdr->elevation_shift = 0;
hdr->line_increment = 0.0;
hdr->sample_increment = 0.0;
hdr->start_lat = 0.0;
hdr->start_lon = 0.0;
hdr->line_count = 0;
hdr->sample_count = 0;
// Okay lets put some believable stuff in there
hdr->magnitude_bytes = 4;
hdr->elevation_bytes = 4;
strcpy(hdr->data_type, "EQA");
hdr->elevation_scale = 1;
hdr->elevation_shift = 0;
if (ddr->valid[DDINCV] == VALID) {
hdr->line_increment = ddr->line_inc / 1200;
hdr->sample_increment = ddr->sample_inc / 1200;
}
else if (ddr->valid[DDPDV] == VALID) {
hdr->line_increment = ddr->pdist_y / 3600;
hdr->sample_increment = ddr->pdist_x / 3600;
}
if (ddr->valid[DDPUV] == VALID) {
hdr->start_lat = ddr->upleft[0] / 3600;
hdr->start_lon = ddr->upleft[1] / 3600;
}
hdr->line_count = ddr->nl;
hdr->sample_count = ddr->ns;
}
static void print_proj_info(meta_parameters *meta)
{
project_parameters_t pp = meta->projection->param;
switch (meta->projection->type)
{
case LAT_LONG_PSEUDO_PROJECTION:
asfPrintStatus(" Projection: Geographic Lat/Lon\n");
break;
case UNIVERSAL_TRANSVERSE_MERCATOR:
asfPrintStatus(" Projection: UTM\n Zone: %d\n\n", pp.utm.zone);
break;
case POLAR_STEREOGRAPHIC:
asfPrintStatus(
" Projection: Polar Stereographic\n"
" Standard parallel: %.4f\n"
" Central meridian: %.4f\n"
" Hemisphere: %c\n\n",
pp.ps.slat, pp.ps.slon, pp.ps.is_north_pole ? 'N' : 'S');
break;
case ALBERS_EQUAL_AREA:
asfPrintStatus(
" Projection: Albers Equal Area Conic\n"
" First standard parallel: %.4f\n"
" Second standard parallel: %.4f\n"
" Central meridian: %.4f\n"
" Latitude of origin: %.4f\n\n",
pp.albers.std_parallel1, pp.albers.std_parallel2,
pp.albers.center_meridian, pp.albers.orig_latitude);
break;
case LAMBERT_CONFORMAL_CONIC:
asfPrintStatus(
" Projection: Lambert Conformal Conic\n"
" First standard parallel: %.4f\n"
" Second standard parallel: %.4f\n"
" Central meridian: %.4f\n"
" Latitude of origin: %.4f\n\n",
pp.lamcc.plat1, pp.lamcc.plat2, pp.lamcc.lon0, pp.lamcc.lat0);
break;
case LAMBERT_AZIMUTHAL_EQUAL_AREA:
asfPrintStatus(
" Projection: Lambert Azimuthal Equal Area\n"
" Latitude of origin: %.4f\n"
" Central meridian: %.4f\n\n",
pp.lamaz.center_lat, pp.lamaz.center_lon);
break;
default:
asfPrintError("Projection type not supported!\n");
break;
}
}
GtkWidget *get_widget_checked(const char *widget_name)
{
GtkWidget *w = glade_xml_get_widget(glade_xml, widget_name);
if (!w)
{
asfPrintError("get_widget_checked() failed: "
"The widget %s was not found.\n", widget_name);
}
return w;
}
static void
sar_to_dem(meta_parameters *meta_sar, meta_parameters *meta_dem,
double line_sar, double samp_sar,
double *line_dem, double *samp_dem)
{
double lat, lon;
int ret;
ret = meta_get_latLon(meta_sar, line_sar, samp_sar, 0, &lat, &lon);
if (ret != 0) {
asfPrintError("meta_get_latLon error: line = %f, samp = %f\n",
line_sar, samp_sar);
}
ret = meta_get_lineSamp(meta_dem, lat, lon, 0, line_dem, samp_dem);
if (ret != 0) {
asfPrintError("meta_get_lineSamp error: lat = %f, lon = %f\n",
lat, lon);
}
}
int get_band_float_line(FILE *file, meta_parameters *meta, int band_number,
int line_number_in_band, float *dest)
{
if (band_number > meta->general->band_count)
asfPrintError("Requested a band (%d) larger than the number of bands in\n"
"the file (%d).\n", band_number, meta->general->band_count);
int line_number = meta->general->line_count * band_number +
line_number_in_band;
return get_data_lines(file, meta, line_number, 1,
0, meta->general->sample_count, dest, REAL32);
}
/*Convert projection units (meters) to geodetic latitude and longitude (degrees).*/
void proj_to_latlon(meta_projection *proj, double x, double y, double z,
double *lat, double *lon, double *height)
{
if (proj==NULL)
bail("NULL projection parameter structure passed to proj_to_latlon!\n");
switch(proj->type)
{
case ALBERS_EQUAL_AREA:
project_albers_inv(&(proj->param), x, y, z, lat, lon, height, proj->datum);
break;
case LAMBERT_AZIMUTHAL_EQUAL_AREA:
project_lamaz_inv(&(proj->param), x, y, z, lat, lon, height, proj->datum);
break;
case LAMBERT_CONFORMAL_CONIC:
project_lamcc_inv(&(proj->param), x, y, z, lat, lon, height, proj->datum);
break;
case POLAR_STEREOGRAPHIC:
project_ps_inv(&(proj->param), x, y, z, lat, lon, height, proj->datum);
break;
case UNIVERSAL_TRANSVERSE_MERCATOR:
project_utm_inv(&(proj->param), x, y, z, lat, lon, height, proj->datum);
break;
case MERCATOR:
project_mer_inv(&(proj->param), x, y, z, lat, lon, height, proj->datum);
break;
case EQUI_RECTANGULAR:
project_eqr_inv(&(proj->param), x, y, z, lat, lon, height, proj->datum);
break;
case EQUIDISTANT:
project_eqc_inv(&(proj->param), x, y, z, lat, lon, height, proj->datum);
break;
case SINUSOIDAL:
project_sin_inv(&(proj->param), x, y, z, lat, lon, height);
break;
case SCANSAR_PROJECTION:
asfPrintError("'proj_to_latlon' not defined for SCANSAR_PROJECTION.\n"
"Use 'scan_latlon' instead.\n");
break;
case LAT_LONG_PSEUDO_PROJECTION:
*lat = y*D2R;
*lon = x*D2R;
break;
case STATE_PLANE: // temporary hack
*lat = 0.0;
*lon = 0.0;
break;
case UNKNOWN_PROJECTION:
default:
printf("Unrecognized map projection '%c' passed to proj_to_latlon!\n",
proj->type);
exit(1);
}
}
void open_baseline_shape(char *inFile, DBFHandle *dbase, SHPHandle *shape)
{
char *dbaseFile;
// Open database for adding values
dbaseFile = (char *) MALLOC(sizeof(char)*(strlen(inFile)+5));
sprintf(dbaseFile, "%s.dbf", inFile);
*dbase = DBFOpen(dbaseFile, "r+b");
if (*dbase == NULL)
asfPrintError("Could not open database file '%s'\n", dbaseFile);
// Open shapefile for adding values
*shape = SHPOpen(inFile, "r+b");
if (*shape == NULL)
asfPrintError("Could not open shapefile '%s\n", inFile);
FREE(dbaseFile);
return;
}
static void
img_to_latlon(meta_parameters *meta,
double line, double samp,
double *lat, double *lon)
{
int ret = meta_get_latLon(meta, line, samp, 0, lat, lon);
if (ret != 0) {
asfPrintError("meta_get_latLon error: line = %f, samp = %f\n",
line, samp);
}
}
/**********************************************************
* slant_from_incide: Calculate the slant range, if we know
* the incidence angle, the earth radius, and the satellite height
* incid should be in radians */
double slant_from_incid(double incid,double er,double ht)
{
double i=PI-incid;
double D=SQR(ht) - SQR(er*sin(i));
double sr=er*cos(i) + sqrt(D);
// check degenerate cases
if (D<0 || sr<0 || er*cos(i) - sqrt(D) > 0)
asfPrintError("Satellite orbit is below the Earth's surface!\n");
return sr;
}
PRC_REC *fetch_prc_rec(char *file, int recnum)
{
FILE *fp;
char buf[131];
PRC_REC *tmp;
int offset, i;
char tmpbuf[20][20];
/* Add null strings to end of temporary buffer */
for (i=0; i< 20; i++) tmpbuf[i][19]='\0';
/* Create structure & Add null characters to string fields */
tmp = (PRC_REC *) MALLOC (sizeof(PRC_REC));
tmp->reckey[6]='\0';
tmp->spare[2]='\0';
/* Open file, skip id and header, seek to recnum record */
fp = FOPEN(file,"r");
offset = 130 + 130 + 130 * recnum;
if (fseek(fp,offset,0)!=0)
asfPrintError("No state vector found - read past end of file \n");
/* Read the current record */
FREAD(buf,130,1,fp);
FCLOSE(fp);
/* Convert the buffer */
sscanf(buf,"%6c%7c%c%6c%11c%12c%12c%12c%11c%11c%11c%6c%6c%6c%2c%3c%c%4c%2c",
tmp->reckey, tmpbuf[0], &tmp->orbtyp, tmpbuf[1],tmpbuf[2],
tmpbuf[3], tmpbuf[4], tmpbuf[5], tmpbuf[6], tmpbuf[7], tmpbuf[8],
tmpbuf[9], tmpbuf[10], tmpbuf[11], tmpbuf[12], tmpbuf[13],
&tmp->quali, tmpbuf[14], tmp->spare);
/* Convert tmpbuf strings into numeric values */
tmp->satid = atoi(tmpbuf[0]);
tmp->ttagd = atof(tmpbuf[1]) / 10.0; /* Units are 0.1 days */
tmp->ttagms = strtoll(tmpbuf[2], (char **)NULL, 10);
tmp->xsat = strtoll(tmpbuf[3], (char **)NULL, 10);
tmp->ysat = strtoll(tmpbuf[4], (char **)NULL, 10);
tmp->zsat = strtoll(tmpbuf[5], (char **)NULL, 10);
tmp->xdsat = strtoll(tmpbuf[6], (char **)NULL, 10);
tmp->ydsat = strtoll(tmpbuf[7], (char **)NULL, 10);
tmp->zdsat = strtoll(tmpbuf[8], (char **)NULL, 10);
tmp->roll = atof(tmpbuf[9])/1000.0; /* Units are 0.001 degrees */
tmp->pitch = atof(tmpbuf[10])/1000.0; /* Units are 0.001 degrees */
tmp->yaw = atof(tmpbuf[11])/1000.0; /* Units are 0.001 degrees */
tmp->ascarc = atoi(tmpbuf[12]);
tmp->check = atoi(tmpbuf[13]);
tmp->radcor = atoi(tmpbuf[14]);
return(tmp);
}
void find_prc_file(char *prc_path,int requested_date, int orbit, char *prc_file)
{
struct stat buf;
DIR *dirp;
struct dirent *dent;
//int tmpRequest;
int minDiff = 1000000;
char saveName[256];
/* Make sure given path is valid
------------------------------*/
if (stat(prc_path, &buf)==-1) {
perror("stat");
exit(EXIT_FAILURE);
}
if (!(S_ISDIR(buf.st_mode)))
asfPrintError(" ERROR: '%s' is not a directory\n",prc_path);
/* Open the directory structure
-----------------------------*/
if ((dirp = opendir(prc_path))==NULL) {
perror("opendir");
exit(1);
}
//tmpRequest = requested_date - ((requested_date/1000000)*1000000);
while ((dent=readdir(dirp)) != 0) {
char tmpName[256];
//int tmpDate;
int tmpOrbit;
strcpy(tmpName,dent->d_name);
if (strncmp(tmpName,"PRC_",4)==0) {
//tmpDate = atoi(&(tmpName[4]));
tmpOrbit = atoi(&(tmpName[11]));
/* Calculation by orbit number */
if ( (tmpOrbit < orbit) && ((orbit - tmpOrbit) < minDiff)) {
minDiff = (orbit-tmpOrbit);
strcpy(saveName,tmpName);
}
}
}
(void)closedir(dirp);
asfPrintStatus(" Closest file found is %s\n",saveName);
strcpy(prc_file,prc_path);
strcat(prc_file,"/");
strcat(prc_file,saveName);
}
void test_geoid(void)
{
float f = get_geoid_height(0,0);
if (fabs(f - 17.16) > .0001)
asfPrintWarning("Unexpected value at 0,0 should be 17.15: %f\n", f);
int w = geoid_get_width();
int h = geoid_get_height();
float *geoid_heights = geoid_get_height_array();
int i, j;
for (i=0; i<w; ++i) {
for (j=0; j<h; ++j) {
float a0 = *(geoid_heights + j*w + i);
float a1 = geoid_height_at(i,j);
if (fabs(a0-a1) > .0001)
asfPrintWarning("test_geoid #1 failed: %d %d %f %f\n", i, j, a0, a1);
CU_ASSERT(fabs(a0-a1)<.0001);
if (i<w-1 && j<h-1) {
double ii = i+.5;
double jj = j+.5;
double lat = 90.0 - jj/4.0;
double lon = ii/4.0;
float b0 = get_geoid_height(lat,lon);
float b1 = .25*(geoid_height_at(i,j)+geoid_height_at(i+1,j)+
geoid_height_at(i,j+1)+geoid_height_at(i+1,j+1));
if (fabs(b0-b1) > .0001)
asfPrintWarning("test_geoid #2 failed: %d %d %f %f\n", i, j, b0, b1);
CU_ASSERT(fabs(b0-b1)<.0001);
ii = i+.25;
jj = j+.75;
lat = 90.0 - jj/4.0;
lon = ii/4.0;
float c0 = get_geoid_height(lat,lon);
float u = .75*geoid_height_at(i,j) + .25*geoid_height_at(i+1,j);
float v = .75*geoid_height_at(i,j+1) + .25*geoid_height_at(i+1,j+1);
float c1 = .25*u + .75*v;
if (fabs(c0-c1) > .0001)
asfPrintError("test_geoid #3 failed: %d %d %f %f\n", i, j, c0, c1);
CU_ASSERT(fabs(c0-c1)<.0001);
}
}
}
}
static void
banded_image_self_test(BandedFloatImage *self)
{
if (!do_self_tests) return;
if (self->nbands <= 1) {
return;
}
int nl = self->images[0]->size_y;
int ns = self->images[0]->size_x;
int i;
for (i=1; i < self->nbands; ++i) {
if (nl != self->images[i]->size_y)
asfPrintError("BandedFloatImage y consistency check failed!"
"band #%d size=%d: band0_size=%d\n",
i, self->images[i]->size_y, nl);
if (ns != self->images[i]->size_x)
asfPrintError("BandedFloatImage x consistency check failed!"
"band #%d size=%d: band0_size=%d\n",
i, self->images[i]->size_x, ns);
}
}
int combine(char **infiles, int n_inputs, char *outfile)
{
int ret, ii, size_x, size_y;
double start_x, start_y;
double per_x, per_y;
// Determine image parameters
determine_extents(infiles, n_inputs, &size_x, &size_y, &start_x, &start_y,
&per_x, &per_y);
asfPrintStatus("\nCombined image size: %dx%d LxS\n", size_y, size_x);
asfPrintStatus(" Start X,Y: %f,%f\n", start_x, start_y);
asfPrintStatus(" Per X,Y: %lg,%lg\n", per_x, per_y);
// float_image will handle cacheing of the large output image
FloatImage *out = float_image_new(size_x, size_y);
// loop over the input images, last to first, so that the files listed
// first have their pixels overwrite files listed later on the command line
for (ii=n_inputs-1; ii>=0; ii--) {
asfPrintStatus("\nProcessing %s... \n", infiles[ii]);
// Add this image's pixels
add_pixels(out, infiles[ii], start_x, start_y, per_x, per_y);
}
asfPrintStatus("Writing metadata.\n");
meta_parameters *meta_out = meta_read(infiles[0]);
meta_out->projection->startX = start_x;
meta_out->projection->startY = start_y;
meta_out->general->line_count = size_y;
meta_out->general->sample_count = size_x;
meta_write(meta_out, outfile);
meta_free(meta_out);
char *outfile_full = appendExt(outfile, ".img");
asfPrintStatus("Saving image (%s).\n", outfile_full);
ret = float_image_store(out, outfile_full, fibo_be);
if (ret!=0)
asfPrintError("Error storing output image!\n");
float_image_free(out);
free(outfile_full);
return ret;
}
static char *findInArcList(char *acquisition_time, char *arclist)
{
char line[1024];
char *odr = NULL;
// ODR files will be in the same directory as arclist
char *dir = get_dirname(arclist);
FILE *fp = FOPEN(arclist, "r");
if (!fp) {
asfPrintError("Failed to open: %s\n", arclist);
}
ymd_date ymd;
hms_time hms;
parse_DMYdate(acquisition_time, &ymd, &hms);
// YYYYMMDD as an integer
int scene_time = ymd.year * 10000 + ymd.month * 100 + ymd.day;
while (fgets(line, 1024, fp) != NULL) {
if (isdigit(line[0])) {
int arc, start, end, junk, n;
n = sscanf(line, "%d %d %d:%d - %d %d:%d",
&arc, &start, &junk, &junk, &end, &junk, &junk);
start = arclist_time_fudge(start);
end = arclist_time_fudge(end);
if (n == 7) {
if (scene_time > start && scene_time < end) {
odr = MALLOC(sizeof(char)*(strlen(dir)+64));
sprintf(odr, "%sODR.%03d", dir, arc);
break;
}
}
}
}
FCLOSE(fp);
if (!odr)
odr = STRDUP("");
FREE(dir);
return odr;
}
