Added XPlane scenery DSF/TXT to FlightGear scenery STG converter

utils/__init__.py

@@ -2,6 +2,8 @@
 #-*- coding:utf-8 -*-
 
 import math
+import os
+import subprocess
 
 def get_fg_tile_span(lat):
 	if lat >= 89:
@@ -31,9 +33,72 @@ def get_fg_tile_span(lat):
 	else:
 		return 12
 
-def get_fg_tile_index(lon, lat):
-	tile_width = get_fg_tile_span(lat)
-	x = math.floor((lon - math.floor(math.floor(lon / tile_width) * tile_width)) / tile_width)
-	y = trunc((lat - math.floor(lat)) + 8)
-	return ((lon + 180) << 14) + ((lat + 90) << 6) + (y << 3) + x
+def get_fg_tile_index(dlon, dlat):
+	tile_width = get_fg_tile_span(dlat)
+	lon = math.floor(dlon)
+	lat = math.floor(dlat)
+	if tile_width <= 1:
+		x = math.floor((dlon - lon) / tile_width)
+	else:
+		lon = int(math.floor(lon / tile_width) * tile_width)
+		x = 0
+	
+	if lat == 90:
+		lat = 89
+		y = 7
+	else:
+		y = math.floor((dlat - math.floor(dlat)) * 8)
+	
+	return ((lon + 180) << 14) + ((lat + 90) << 6) + (y << 3) + x
+
+def get_fg_tile_coords(index):
+	lon = index >> 14;
+	index -= lon << 14;
+	lon -= 180;
+
+	lat = index >> 6;
+	index -= lat << 6;
+	lat -= 90;
+	
+	return lon, lat
+
+def get_fg_tile_path(lon, lat):
+	top_lon = int(lon / 10);
+	main_lon = int(lon);
+	if (lon < 0) and (top_lon * 10 != lon):
+		top_lon -= 1;
+	top_lon *= 10
+	if top_lon >= 0:
+		hem = "e"
+	else:
+		hem = "w"
+		top_lon *= -1;
+	if main_lon < 0:
+		main_lon *= -1
+	
+	top_lat = int(lat / 10)
+	main_lat = int(lat)
+	if (lat < 0) and (top_lat * 10 != lat):
+		top_lat -= 1
+	top_lat *= 10
+	if top_lat >= 0:
+		pole = "n"
+	else:
+		pole = "s"
+		top_lat *= -1
+	if main_lat < 0:
+		main_lat *= -1
+	
+	return f"{hem}{int(top_lon):03d}{pole}{int(top_lat):02d}/{hem}{int(main_lon):03d}{pole}{int(main_lat):02d}/{get_fg_tile_index(lon, lat)}"
+
+def make_fgelev_pipe(fgelev, fgscenery, fgdata):
+	env = os.environ.copy()
+	env["FG_SCENERY"] = os.pathsep.join(fgscenery)
+	env["FG_ROOT"] = fgdata
+	pipe = subprocess.Popen(args=[fgelev, "--expire", "1"], env=env, stdin=subprocess.PIPE, stdout=subprocess.PIPE, stderr=subprocess.PIPE)
+	pipe.stdout.flush()
+	pipe.stdout.readline()
+	pipe.stdin.flush()
+	pipe.stdin.flush()
+	return pipe
 	

utils/constants.py

@@ -5,8 +5,6 @@ import os
 import sys
 
 HOME = os.environ.get("HOME", os.path.expanduser("~"))
-SCRIPTS = ["process-shapefiles.py", "process-elevations.py"]
-MODULE = "tgtools"
 __version__ = (1, 0, 0)
 __versionstr__ = ".".join(map(str, __version__))