//==========================================================
// GshhsPolygon_WDB (entete de type GSHHS récent)
//==========================================================
GshhsPolygon_WDB::GshhsPolygon_WDB(ZUFILE *file_)
{
file = file_;
ok = true;
id = readInt4();
n = readInt4();
flag = readInt4();
west = readInt4() * 1e-6;
east = readInt4() * 1e-6;
south = readInt4() * 1e-6;
north = readInt4() * 1e-6;
area = readInt4();
greenwich = false;
antarctic = false;
if (ok) {
for (int i=0; i<n; i++) {
double x, y;
x = readInt4() * 1e-6;
if (greenwich && x > 270)
x -= 360;
y = readInt4() * 1e-6;
lsPoints.push_back(new GshhsPoint(x,y));
}
}
}
static bool patchApplyPPF1(FILE *f, u8 **rom, int *size)
{
fseek(f, 0, SEEK_END);
int count = ftell(f);
if (count < 56)
return false;
count -= 56;
fseek(f, 56, SEEK_SET);
u8 *mem = *rom;
while (count > 0) {
int offset = readInt4(f);
if (offset == -1)
break;
int len = fgetc(f);
if (len == EOF)
break;
if (offset+len > *size)
break;
if (fread(&mem[offset], 1, len, f) != (size_t)len)
break;
count -= 4 + 1 + len;
}
return (count == 0);
}
static bool patchApplyPPF2(FILE *f, u8 **rom, int *size)
{
fseek(f, 0, SEEK_END);
int count = ftell(f);
if (count < 56+4+1024)
return false;
count -= 56+4+1024;
fseek(f, 56, SEEK_SET);
int datalen = readInt4(f);
if (datalen != *size)
return false;
u8 *mem = *rom;
u8 block[1024];
fread(&block, 1, 1024, f);
if (memcmp(&mem[0x9320], &block, 1024) != 0)
return false;
int idlen = ppfFileIdLen(f, 2);
if (idlen > 0)
count -= 16 + 16 + idlen;
fseek(f, 56+4+1024, SEEK_SET);
while (count > 0) {
int offset = readInt4(f);
if (offset == -1)
break;
int len = fgetc(f);
if (len == EOF)
break;
if (offset+len > *size)
break;
if (fread(&mem[offset], 1, len, f) != (size_t)len)
break;
count -= 4 + 1 + len;
}
return (count == 0);
}
static int ppfFileIdLen(FILE *f, int version)
{
if (version == 2) {
fseeko64(f, -8, SEEK_END);
} else {
fseeko64(f, -6, SEEK_END);
}
if (fgetc(f) != '.' || fgetc(f) != 'D' || fgetc(f) != 'I' || fgetc(f) != 'Z')
return 0;
return (version == 2) ? readInt4(f) : readInt2(f);
}
//==========================================================
// GshhsPolygon (compatible avec le format .rim de RANGS)
//==========================================================
GshhsPolygon::GshhsPolygon(ZUFILE *file_)
{
file = file_;
ok = true;
id = readInt4();
n = readInt4();
flag = readInt4();
west = readInt4() * 1e-6;
east = readInt4() * 1e-6;
south = readInt4() * 1e-6;
north = readInt4() * 1e-6;
area = readInt4();
greenwich = readInt2();
readInt2(); // source
antarctic = (west==0 && east==360);
if (ok)
{
double x, y=-90;
for (int i=0; i<n; i++) {
x = readInt4() * 1e-6;
if (greenwich && x > 270)
x -= 360;
y = readInt4() * 1e-6;
lsPoints.push_back(new GshhsPoint(x,y));
}
// force l'Antarctic à être un "rectangle" qui passe par le pôle
if (antarctic) {
lsPoints.insert (lsPoints.begin(), 2, (GshhsPoint*)0);
lsPoints [1] = new GshhsPoint(360, y);
lsPoints [0] = new GshhsPoint(360,-90);
lsPoints.push_back(new GshhsPoint(0,-90));
}
}
}
