[GRASS-dev] Addons: r.horizon single point mode segfault

[Markus Neteler]

Hi,

I tried to use r.horizon in single point mode but it segfaults:

GRASS 6.4.svn (spearfish60):~/grass64 > gdb r.horizon
GNU gdb 6.6-3mdv2008.0 (Mandriva Linux release 2008.0)
...
This GDB was configured as "x86_64-mandriva-linux-gnu"...
Using host libthread_db library "/lib64/libthread_db.so.1".
(gdb) r elevation.dem step=30 direction=15 bufferzone=200
coord=-103.75026822,44.43602767
...
Program received signal SIGSEGV, Segmentation fault.
[Switching to Thread 47370162098592 (LWP 6037)]
0x0000000000404e1f in calculate (xcoord=-103.75026822,
ycoord=44.436027670000001, buffer_e=6, buffer_w=6, buffer_s=6,
buffer_n=6)
    at main.c:1101
1101            z_orig = zp = z[yindex][xindex];
(gdb) bt
#0  0x0000000000404e1f in calculate (xcoord=-103.75026822,
ycoord=44.436027670000001, buffer_e=6, buffer_w=6, buffer_s=6,
buffer_n=6)
    at main.c:1101
#1  0x00000000004036fa in main (argc=6, argv=0x7fff78d62728) at main.c:510

(gdb) bt full
#0  0x0000000000404e8f in calculate (xcoord=-103.75026822,
ycoord=44.436027670000001, buffer_e=6, buffer_w=6, buffer_s=6,
buffer_n=6)
    at main.c:1102
        i = 11098
        j = -1268384144
        l = 32767
        k = 0
        numDigits = 6
        xindex = -19662
        yindex = -163781
        shadow_angle = 1.6975966453708918e-313
        coslat = 6.9532931413279238e-310
        latitude = 6.9532931413255523e-310
        longitude = 3.1434037398486797e-317
        xp = 1840
        yp = -9999
        inputAngle = 1840
        delt_lat = 4.9406564584124654e-324
        delt_lon = 1840
        delt_east = 6.9532931413318763e-310
        delt_nor = 2.0797925572540819e-317
        delt_dist = 3.1234217488682763e-317
        formatString = "��e��\177\000\000\233�"
        hor_row_start = 6
        hor_row_end = 484
        hor_col_start = 6
        hor_col_end = 641
        hor_numrows = 478
        hor_numcols = 635
        arrayNumInt = 490
        dfr_rad = 1.3729312770741917e-311
#1  0x000000000040374a in main (argc=6, argv=0x7fffb4660028) at main.c:510
        xcoord = -103.75026822
        ycoord = 44.436027670000001
        module = (struct GModule *) 0x2b5af6ad2660
        parm = {elevin = 0x2b5af6ad25c0, dist = 0x60db40, coord =
0x60da80, direction = 0x60d400, horizon = 0x60d9c0,
  step = 0x60d4a0, bufferzone = 0x60d540, e_buff = 0x60d5e0, w_buff =
0x60d680, n_buff = 0x60d720, s_buff = 0x60d7e0,
  maxdistance = 0x60d900}
        flag = {degreeOutput = 0x2b5af6ad2580}
        in_proj_info = (struct Key_Value *) 0x60b400
        in_unit_info = (struct Key_Value *) 0x611470

What could be the problem here?

thanks
Markus