plDarkSky

@@ -0,0 +1,28 @@

+

+PROG = pldarksky

+

+CC = gcc

+

+CFLAGS=-Wall -O3 -fopenmp -msse2 -mfpmath=sse -Wl,-rpath,'$$ORIGIN/' -I/usr/include/gdal -lgdal -lezgdal -largtable3 -lm

+

+COMMON_C = $(shell ls *.c)

+COMMON_C_O = $(COMMON_C:%.c=%.o)

+

+ifndef PREFIX

+  PREFIX = /usr/local

+endif

+

+

+default: $(PROG)

+

+$(PROG): $(COMMON_C_O) $(HEADERS)

+	$(CC) $(CFLAGS) -o $(PROG) $(COMMON_O) $(COMMON_C_O)

+

+$(COMMON_C_O): $(COMMON_C) $(HEADERS_C)

+	$(CC) $(CFLAGS) -c  $(COMMON_C)

+

+install: 

+	cp -f $(PROG) $(PREFIX)/bin

+

+clean:

+	rm -f *.o $(PROG)

@@ -0,0 +1,20 @@

+PROG = pldarksky.exe

+

+CC = x86_64-w64-mingw32-gcc 

+

+CFLAGS= -I../../Win64_cross/gdal/include -I../../Win64_cross/ezgdal -I../../Win64_cross/argtable3 -L../../Win64_cross/argtable3 -L../../Win64_cross/gdal/bin -L../../Win64_cross/ezgdal -Wall -O3 -fopenmp -msse2 -mfpmath=sse -lgdal -llibezgdal -llibargtable3 -lm

+

+COMMON_C = $(shell ls *.c)

+COMMON_C_O = $(COMMON_C:%.c=%.o)

+HEADERS = $(shell ls *.h)

+

+default: $(PROG)

+

+$(PROG): $(COMMON_C_O) $(HEADERS)

+	$(CC) $(CFLAGS) -o $(PROG) $(COMMON_C_O)

+

+$(COMMON_C_O): $(COMMON_C) $(HEADERS)

+	$(CC) $(CFLAGS) -c  $(COMMON_C)

+

+clean:

+	rm -f *.o $(PROG)

@@ -0,0 +1,674 @@

+                    GNU GENERAL PUBLIC LICENSE

+                       Version 3, 29 June 2007

+

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+License will continue to apply to the part which is the covered work,

+but the special requirements of the GNU Affero General Public License,

+section 13, concerning interaction through a network will apply to the

+combination as such.

+

+  14. Revised Versions of this License.

+

+  The Free Software Foundation may publish revised and/or new versions of

+the GNU General Public License from time to time.  Such new versions will

+be similar in spirit to the present version, but may differ in detail to

+address new problems or concerns.

+

+  Each version is given a distinguishing version number.  If the

+Program specifies that a certain numbered version of the GNU General

+Public License "or any later version" applies to it, you have the

+option of following the terms and conditions either of that numbered

+version or of any later version published by the Free Software

+Foundation.  If the Program does not specify a version number of the

+GNU General Public License, you may choose any version ever published

+by the Free Software Foundation.

+

+  If the Program specifies that a proxy can decide which future

+versions of the GNU General Public License can be used, that proxy's

+public statement of acceptance of a version permanently authorizes you

+to choose that version for the Program.

+

+  Later license versions may give you additional or different

+permissions.  However, no additional obligations are imposed on any

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+later version.

+

+  15. Disclaimer of Warranty.

+

+  THERE IS NO WARRANTY FOR THE PROGRAM, TO THE EXTENT PERMITTED BY

+APPLICABLE LAW.  EXCEPT WHEN OTHERWISE STATED IN WRITING THE COPYRIGHT

+HOLDERS AND/OR OTHER PARTIES PROVIDE THE PROGRAM "AS IS" WITHOUT WARRANTY

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+IS WITH YOU.  SHOULD THE PROGRAM PROVE DEFECTIVE, YOU ASSUME THE COST OF

+ALL NECESSARY SERVICING, REPAIR OR CORRECTION.

+

+  16. Limitation of Liability.

+

+  IN NO EVENT UNLESS REQUIRED BY APPLICABLE LAW OR AGREED TO IN WRITING

+WILL ANY COPYRIGHT HOLDER, OR ANY OTHER PARTY WHO MODIFIES AND/OR CONVEYS

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+GENERAL, SPECIAL, INCIDENTAL OR CONSEQUENTIAL DAMAGES ARISING OUT OF THE

+USE OR INABILITY TO USE THE PROGRAM (INCLUDING BUT NOT LIMITED TO LOSS OF

+DATA OR DATA BEING RENDERED INACCURATE OR LOSSES SUSTAINED BY YOU OR THIRD

+PARTIES OR A FAILURE OF THE PROGRAM TO OPERATE WITH ANY OTHER PROGRAMS),

+EVEN IF SUCH HOLDER OR OTHER PARTY HAS BEEN ADVISED OF THE POSSIBILITY OF

+SUCH DAMAGES.

+

+  17. Interpretation of Sections 15 and 16.

+

+  If the disclaimer of warranty and limitation of liability provided

+above cannot be given local legal effect according to their terms,

+reviewing courts shall apply local law that most closely approximates

+an absolute waiver of all civil liability in connection with the

+Program, unless a warranty or assumption of liability accompanies a

+copy of the Program in return for a fee.

+

+                     END OF TERMS AND CONDITIONS

+

+            How to Apply These Terms to Your New Programs

+

+  If you develop a new program, and you want it to be of the greatest

+possible use to the public, the best way to achieve this is to make it

+free software which everyone can redistribute and change under these terms.

+

+  To do so, attach the following notices to the program.  It is safest

+to attach them to the start of each source file to most effectively

+state the exclusion of warranty; and each file should have at least

+the "copyright" line and a pointer to where the full notice is found.

+

+    <one line to give the program's name and a brief idea of what it does.>

+    Copyright (C) <year>  <name of author>

+

+    This program is free software: you can redistribute it and/or modify

+    it under the terms of the GNU General Public License as published by

+    the Free Software Foundation, either version 3 of the License, or

+    (at your option) 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 General Public License for more details.

+

+    You should have received a copy of the GNU General Public License

+    along with this program.  If not, see <http://www.gnu.org/licenses/>.

+

+Also add information on how to contact you by electronic and paper mail.

+

+  If the program does terminal interaction, make it output a short

+notice like this when it starts in an interactive mode:

+

+    <program>  Copyright (C) <year>  <name of author>

+    This program comes with ABSOLUTELY NO WARRANTY; for details type `show w'.

+    This is free software, and you are welcome to redistribute it

+    under certain conditions; type `show c' for details.

+

+The hypothetical commands `show w' and `show c' should show the appropriate

+parts of the General Public License.  Of course, your program's commands

+might be different; for a GUI interface, you would use an "about box".

+

+  You should also get your employer (if you work as a programmer) or school,

+if any, to sign a "copyright disclaimer" for the program, if necessary.

+For more information on this, and how to apply and follow the GNU GPL, see

+<http://www.gnu.org/licenses/>.

+

+  The GNU General Public License does not permit incorporating your program

+into proprietary programs.  If your program is a subroutine library, you

+may consider it more useful to permit linking proprietary applications with

+the library.  If this is what you want to do, use the GNU Lesser General

+Public License instead of this License.  But first, please read

+<http://www.gnu.org/philosophy/why-not-lgpl.html>.

@@ -0,0 +1,348 @@

+/****************************************************************************

+ *

+ * PROGREM:      darksky

+ *

+ * AUTHOR(S):    Pawel Netzel - SIL UC, Henryka Netzel - CAMK

+ *

+ * PURPOSE:      The program calculates sky lightness in the zenith direction

+ *               GHSL data are taken as input (values from 0 to 1).

+ *               If DEM is provided, the program takes into account shadowing

+ *               effect. The unit of the results is magnitudo.

+ *

+ *               If the program is used, cite following:

+ *

+ *               H. Netzel, P. Netzel, 2016: High resolution map of light 

+ *               pollution over Poland. J. of Quantitative Spectroscopy and 

+ *               Radiative Transfer, Vol. 181, pp. 67-73

+ *

+ *

+ * COPYRIGHT:    (C) 2016 by Pawel Netzel

+ *

+ *               This program is free software under the GNU General Public

+ *               License (>=v2): 

+ *                 http://www.gnu.org/licenses/old-licenses/gpl-2.0.en.html

+ *

+ ***************************************************************************/

+

+#include <stdlib.h>

+#include <string.h>

+#include <ezgdal.h>

+#include <math.h>

+#include <omp.h>

+

+#include "argtable3.h"

+#include "version.h"

+#include "viewshed.h"

+

+

+/*******************************

+ *     Calc matrix with model

+ *     weights

+ */

+double **init_model_matrix(double par_a, double par_U, double par_V, double par_h,double par_k, 

+                           int par_N, double resX, double resY) {

+  double **mtx;

+  int r,c,n;

+  double range,px,py,D,t1,t2;

+  

+  n = par_N*2+1;

+  range = resX*par_N;

+  

+  mtx = malloc(n*sizeof(double *));

+  for(r=0; r<n; r++)

+    mtx[r] = malloc(n*sizeof(double));

+

+  for(r=0; r<n; r++)

+    for(c=0; c<n; c++) {

+      px = resX*(c-par_N);

+      py = resY*(r-par_N);

+      D=(px*px+py*py);

+      if(sqrt(D)<=range) {

+        t1=D+par_h*par_h;

+        t2=sqrt(t1);

+        mtx[r][c]=par_a*(par_U/t1+par_V/t2)*exp(-par_k*t2);

+      } else

+        mtx[r][c]=0.0;

+    }

+    

+  return mtx;

+}

+

+void free_model_matrix(double **mtx, int par_N) {

+  int r, n;

+  n = 2*par_N+1;

+  for(r=0; r<n; r++)

+    free(mtx[r]);

+  free(mtx);

+}

+

+

+/**********************************

+ *    Calc model for a cell

+ *    Multiply model matrix by 

+ *    GHSL values in the cell 

+ *    perimeter

+ */

+double calc(EZGDAL_FRAME *f, double **mtx, int **visible) {

+  int r, n;

+  double sum=0.0;

+  EZGDAL_LAYER *l = f->owner.stripe->layer;

+  

+  n = f->cols;

+  

+#pragma omp parallel for shared(n,l,f,visible,mtx) reduction( + : sum )

+  for(r=0; r<n; r++) {

+    double *pm = mtx[r];

+    double *pb = f->buffer[r];

+    int *vis = visible[r];

+    double ss = 0.0;

+    int c;

+    for(c=0; c<n; c++) {

+      if(!ezgdal_is_null(l,*pb) && *vis==1)

+        ss += (*pb) * (*pm);

+      pm++; pb++; vis++;

+    }

+    sum = sum + ss;

+  }

+  

+  double v = -2.5*log10(sum+250.0)+27.78;

+

+  return v;

+}

+

+/**********************************

+ *     Calculation sky brightness

+ */

+void calc_model(EZGDAL_LAYER *ghsl_layer, EZGDAL_LAYER *dem_layer, EZGDAL_LAYER *out_layer, 

+                double **model_matrix, double **distance, int **visibility, 

+                double height0, double radius, double scaleH) {

+  int r,c,c1,c2,r1,r2,rN;

+  int prc = 0;

+  

+  rN = ghsl_layer->rows;

+  c1 = ghsl_layer->stripe->frame->cols/2;

+  c2 = ghsl_layer->cols - c1 + 1;

+  r1 = ghsl_layer->stripe->rows/2;

+  r2 = ghsl_layer->rows - r1 + 1;

+  

+  printf("  0%%"); fflush(stdout);

+

+  for(c=0; c<out_layer->cols; c++)

+    out_layer->buffer[c] = out_layer->no_data;

+  for(r=0; r<=r1; r++) {

+    if(100*r/rN != prc) {prc=100*r/rN; printf("\b\b\b\b%3d%%",prc); fflush(stdout); }

+    ezgdal_write_buffer(out_layer,r);

+  }

+

+

+  for(r=r1+1; r<r2; r++) {

+    if(100*r/rN != prc) {prc=100*r/rN; printf("\b\b\b\b%3d%%",prc); fflush(stdout); }

+

+    ezgdal_load_stripe_data(ghsl_layer->stripe, r-r1);

+    if(dem_layer!=NULL) ezgdal_load_stripe_data(dem_layer->stripe, r-r1);

+

+    for(c=c1; c<c2; c++) {

+      ezgdal_shift_frame_pos(ghsl_layer->stripe->frame, c-c1);

+      if(dem_layer!=NULL) {

+        ezgdal_shift_frame_pos(dem_layer->stripe->frame, c-c1);

+        calc_visibility_mask(dem_layer->stripe->frame, distance, visibility, height0, scaleH, radius, dem_layer->stripe->frame->cols);

+      }

+      out_layer->buffer[c] = calc(ghsl_layer->stripe->frame, model_matrix, visibility);

+    }

+

+    ezgdal_write_buffer(out_layer,r);

+

+  }

+

+  for(c=0; c<out_layer->cols; c++)

+    out_layer->buffer[c] = out_layer->no_data;

+  for(r=r2; r<rN; r++) {

+    if(100*r/rN != prc) {prc=100*r/rN; printf("\b\b\b\b%3d%%",prc); fflush(stdout); }

+    ezgdal_write_buffer(out_layer,r);

+  }

+  printf("\b\b\b\b100%%");

+  

+}

+

+/*************************************

+ *     Check the file

+ */

+int file_exists(const char *fname) {

+  FILE *f = fopen(fname,"r");

+  if(f) {

+    fclose(f);

+    return 1;

+  }

+  return 0;

+}

+

+

+/*************************************

+ *     Display program usage and exit

+ */

+void usage(char *progname, void *argtable) {

+      printf("\nSoftware version: %s, build date: %s\n",__RELEASE_VERSION__,__DATE__);

+      printf("\nUsage:\n\t%s", progname);

+      arg_print_syntax(stdout,argtable,"\n");

+      printf("\n");

+      arg_print_glossary_gnu(stdout,argtable);

+      printf("\n");

+      exit(0);

+}

+

+

+

+int main(int argc, char *argv[])

+{

+  double par_a  = 2.37583;

+  double par_U  = 5.96033;

+  double par_V  = 0.02625;

+  double par_h  = 1.13661;

+  double par_k  = 0.03875;

+  int    par_N  = 300;

+  double resX   = 0.1;

+  double resY   = 0.1;

+  double resH   = 0.001;

+

+  struct arg_str  *ghsl    = arg_str1("g","ghsl","<file_name>","name of GHSL file (GeoTIFF)");

+  struct arg_str  *dem     = arg_str0("d","dem","<file_name>","name of DEM file (GeoTIFF)");

+  struct arg_str  *out     = arg_str1("o","output","<file_name>","name of output file (GeoTIFF)");

+  struct arg_dbl  *p_par_a = arg_dbl0("a","a","<dbl>","parameter 'a' in Berry's model (default: 2.37583)");

+  struct arg_dbl  *p_par_U = arg_dbl0("U","U","<dbl>","parameter 'U' in Berry's model (default: 5.96033)");

+  struct arg_dbl  *p_par_V = arg_dbl0("V","V","<dbl>","parameter 'V' in Berry's model (default: 0.02625)");

+  struct arg_dbl  *p_par_h = arg_dbl0("h","h","<dbl>","parameter 'h' in Berry's model (default: 1.13661)");

+  struct arg_dbl  *p_par_k = arg_dbl0("k","k","<dbl>","parameter 'k' in Berry's model (default: 0.03875)");

+  struct arg_int  *p_par_N = arg_int0("N","radius","<n>","model radius in cells (default: 300)");

+  struct arg_dbl  *p_resX  = arg_dbl0(NULL,"res_x","<dbl>","scale factor: column to km (default: 0.1)");

+  struct arg_dbl  *p_resY  = arg_dbl0(NULL,"res_y","<dbl>","scale factor: row to km (default: 0.1)");

+  struct arg_dbl  *p_resH  = arg_dbl0(NULL,"res_h","<dbl>","scale factor: height to km (default: 0.001)");

+  struct arg_int  *th      = arg_int0("t","threads","<n>","number of threads (default 1)");

+  struct arg_lit  *help    = arg_lit0(NULL,"help","print help and exit");

+  struct arg_end  *end     = arg_end(20);

+  void* argtable[] = {ghsl,dem,out,p_par_a,p_par_U,p_par_V,p_par_h,p_par_k,p_par_N,p_resX,p_resY,p_resH,th,help,end};

+

+  int nerrors = arg_parse(argc,argv,argtable);

+

+  if(help->count > 0 ) 

+    usage(argv[0],argtable);

+    

+  if(nerrors != 0) 

+    usage(argv[0],argtable);

+

+  if(!file_exists(ghsl->sval[0])) {

+    printf("\nInput file [%s] does not exists!\n\n",ghsl->sval[0]);

+    exit(1);

+  }

+    

+  if(dem->count>0 && !file_exists(dem->sval[0])) {

+    printf("\nInput file [%s] does not exists!\n\n",dem->sval[0]);

+    exit(1);

+  }

+    

+  if(p_par_a->count>0) par_a = p_par_a->dval[0];

+  if(p_par_U->count>0) par_U = p_par_U->dval[0];

+  if(p_par_V->count>0) par_V = p_par_V->dval[0];

+  if(p_par_h->count>0) par_h = p_par_h->dval[0];

+  if(p_par_k->count>0) par_k = p_par_k->dval[0];

+  if(p_par_N->count>0) par_N = p_par_N->ival[0];

+

+  if(p_resX->count>0) resX = p_resX->dval[0];

+  if(p_resY->count>0) resY = p_resY->dval[0];

+

+  if(th->count>0 && th->ival[0]>0 && th->ival[0]<32) 

+    omp_set_num_threads(th->ival[0]);

+  else 

+    omp_set_num_threads(1);

+

+

+  printf("\nInput file (GHSL): %s\n",ghsl->sval[0]);

+  if(dem->count>0)

+    printf("Input file (DEM): %s\n",dem->sval[0]);

+  printf("Output file (sky brightness): %s\n",out->sval[0]);

+  printf("Berry's model parameters: a=%lf, U=%lf, V=%lf, h=%lf, k=%lf\n",par_a,par_U,par_V,par_h,par_k);

+  printf("                  radius: %d\n\n",par_N);

+

+

+  int no_data;

+  EZGDAL_LAYER *ghsl_layer = NULL;

+  EZGDAL_LAYER *dem_layer = NULL;

+  EZGDAL_LAYER *out_layer = NULL;

+  double **model_matrix;

+  double *at;

+  double **distance;

+  int **visibility;

+

+

+  printf(" - preparing environment ... ");

+    no_data = -9999;

+

+    if(dem->count>0) {

+      dem_layer = ezgdal_open_layer((char *)dem->sval[0]);

+      if(dem_layer==NULL) exit(1);

+      dem_layer->stripe = ezgdal_create_stripe(dem_layer,0,2*par_N+1);

+      dem_layer->stripe->frame = ezgdal_create_frame(dem_layer->stripe,0);

+    }

+

+    ghsl_layer = ezgdal_open_layer((char *)ghsl->sval[0]);

+    if(ghsl_layer==NULL) exit(1);

+    

+    ghsl_layer->stripe = ezgdal_create_stripe(ghsl_layer,0,2*par_N+1);

+    ghsl_layer->stripe->frame = ezgdal_create_frame(ghsl_layer->stripe,0);

+    at = ezgdal_layer_get_at(ghsl_layer);

+

+    out_layer = ezgdal_create_layer((char *)(out->sval[0]),

+                                  ezgdal_layer_get_wkt(ghsl_layer),

+                                  "Float32",

+                                  at,

+                                  ghsl_layer->rows,

+                                  ghsl_layer->cols,

+                                  &no_data,

+                                  EZGDAL_COMPRESS_DEFLATE);

+    if(out_layer==NULL) exit(1);

+    

+    if(p_resX->count==0) {

+      if(at[2]!=0.0) {

+        printf("\n\nYou have to provide 'res_x' parameter\n\n");

+        exit(1);

+      } else 

+        resX = 0.001*fabs(at[1]);

+    }

+    if(p_resY->count==0) {

+      if(at[4]!=0.0) {

+        printf("\n\nYou have to provide 'res_y' parameter\n\n");

+        exit(1);

+      } else 

+        resY = 0.001*fabs(at[5]);

+    }

+    if(p_resH->count>0) 

+      resH = p_resH->dval[0];

+

+    model_matrix = init_model_matrix(par_a,par_U,par_V,par_h,par_k,par_N,resX,resY);

+    distance = create_dist(2*par_N+1,resX);

+    visibility = create_mask(2*par_N+1,distance,par_N*resX);

+  printf("OK\n");

+  

+

+  printf(" - calculating ... "); fflush(stdout);

+  

+    calc_model(ghsl_layer, dem_layer, out_layer, 

+               model_matrix, distance, visibility, 

+               par_h, par_N*resX, resH);

+

+  printf(" ... OK\n");

+

+  

+  printf(" - closing environment ... "); fflush(stdout);

+    ezgdal_close_layer(ghsl_layer);

+    if(dem->count>0)

+      ezgdal_close_layer(dem_layer);

+    ezgdal_close_layer(out_layer);

+    free_model_matrix(model_matrix, par_N);

+    free_array((void **)distance, 2*par_N+1);

+    free_array((void **)visibility, 2*par_N+1);

+  printf("OK\n");

+

+  arg_freetable(argtable, sizeof(argtable) / sizeof(argtable[0]));

+

+  return 0;

+}

@@ -0,0 +1,6 @@

+#ifndef _VERSION_H_

+#define _VERSION_H_

+

+#define __RELEASE_VERSION__ "0.1.5"

+

+#endif

\ No newline at end of file

@@ -0,0 +1,170 @@

+#include <stdlib.h>

+#include <math.h>

+#include <omp.h>

+#include <ezgdal.h>

+

+void checkLine(EZGDAL_FRAME *frame, double **dist, int **visible, int xc, int yc, double h0, double scaleH, double r, int x1, int y1)

+{

+   double min = 99999999999.0;

+   double a,d;

+   double **buf = frame->buffer;

+   EZGDAL_LAYER *l = frame->owner.stripe->layer;

+   

+   int dx =  abs(x1-xc), sx = xc<x1 ? 1 : -1;

+   int dy = -abs(y1-yc), sy = yc<y1 ? 1 : -1;

+   int err = dx+dy, e2;                                   /* error value e_xy */

+

+   if(ezgdal_is_null(l,buf[xc][yc])) return;

+

+   visible[xc][yc] = 1;

+   h0 += scaleH*buf[xc][xc];

+

+   for (;;){

+   

+      d = dist[xc][yc];

+

+      if(d>r) break;

+

+      if(visible[xc][yc]==-1) {

+        if(!ezgdal_is_null(l,buf[xc][yc])) {

+          a=(h0-scaleH*buf[xc][yc])/d;

+          if(a<=min) {

+            visible[xc][yc] = 1;

+            min=a;

+          } else {

+            visible[xc][yc] = 0;

+          }

+        }

+      }

+      

+      e2 = 2*err;

+      if (e2 >= dy) {                                         /* e_xy+e_x > 0 */