227 lines
9.6 KiB
Python
227 lines
9.6 KiB
Python
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# -------------------------------------------------------------------
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# ORTHOGRAPHIC
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# Your personal aerial satellite. Always on. At any altitude.*
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# Developed by MarStrMind
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# License: MIT
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# Up to date version always on marstr.online
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# -------------------------------------------------------------------
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# orthographic.py
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# Main class which handles the generation of the ortho tile.
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# -------------------------------------------------------------------
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import math
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import os
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import glob
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from defines import *
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from log import *
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from maskgen import *
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from layergen import *
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from photogen import *
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from osmxml import *
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# The main class which handles the rest
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class mstr_orthographic:
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# This will determine the vertical stepping in degrees in order to generate
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# masks with a 1:1 square ratio. This is important as X-Plane textures for
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# orthos can only be a power of 2, such as 2048x2048
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def _findVerticalStepping(self):
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scale = 1 / math.cos(math.radians(self._lat))
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maxlat = (1 / scale) * mstr_zl_18
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return maxlat
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# To write down X-Plane .ter files, we will need to know the exact size
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# of the particular longitude we are in, as this value varies depending
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# on where you are on a sphere.
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# Returned values is in meters.
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# The current latitude is needed.
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def _findWidthOfLongitude(self, lat):
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dm = math.cos(math.radians(lat)) * 111.321 # <- 1 deg width at equator in km
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return round(dm * 1000, 3)
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# Builds and processes the tile with everything required, in one call.
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def _buildTile(self):
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mstr_msg("mstr_orthographic", "Beginning construction of tile")
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# Create the _cache folder, should it not exist.
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# Temporary images for the ortho tile generation go here
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if not os.path.exists(self._output + "/_cache"):
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os.makedirs(self._output + "/_cache")
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mstr_msg("mstr_orthographic", "Created _cache folder.")
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# Generate the Tiles folder for the finished products
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if not os.path.exists(self._output + "/Tiles"):
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os.makedirs(self._output + "/Tiles")
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mstr_msg("mstr_orthographic", "Created Tiles folder.")
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# Generate the Tiles/lat-lng folder for the finished tile
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if not os.path.exists(self._output + "/Tiles/"+str(self._lat)+"_"+str(self._long)):
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os.makedirs(self._output + "/Tiles/"+str(self._lat)+"_"+str(self._long))
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mstr_msg("mstr_orthographic", "Created Tiles sub folder: " +str(self._lat)+"_"+str(self._long))
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# Note down diameter of entire tile
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#tile_dm = round(self._findWidthOfLongitude(), 3)
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#mstr_msg("mstr_orthographic", "Tile diameter: " + str(tile_dm) + "m")
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#dm_of_18 = round(tile_dm * mstr_zl_18, 3)
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#mstr_msg("mstr_orthographic", "Diameter of ZL 18 tile: " + str(dm_of_18) + "m")
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# The tile is constructed of many smaller parts. We walk through the
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# smallest possible, from which the bigger ones are later built.
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bb_lat = self._lat
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bb_lng = self._long
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bb_lat_edge = self._lat+self._vstep
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bb_lng_edge = self._long+mstr_zl_18
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cur_tile_x = 1
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cur_tile_y = 1
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osmxml = mstr_osmxml(0,0)
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mstr_msg("mstr_orthographic", "Set initial coordinates and bounding box for OSM acquisition")
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# Previously, I downloaded all XML files in one go - but to ease the
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# stress on OSM servers and my server, we will do acquire the data
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# only for the current processed part of the tile.
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while bb_lat < self._lat + 1:
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while bb_lng < self._long + 1:
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# Adjust bounding box
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osmxml.adjust_bbox(bb_lat, bb_lng, bb_lat_edge, bb_lng_edge)
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mstr_msg("mstr_orthographic", "Adjusted bounding box for XML object")
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# Get the data
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osmxml.acquire_osm(cur_tile_y, cur_tile_x) # <- This acquires current OSM info
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mstr_msg("mstr_orthographic", "Acquired current OSM info from marstr.online repository")
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# Check for work to be done
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layers = self.determineLayerWork()
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# We need to walk through the array of layers,
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# in their z-order.
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# For each layer, we will generate the mask, the layer image
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# itself, and finally, compose the ortho photo.
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mstr_msg("mstr_orthographic", "Beginning generation of layers")
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# Generate the Tiles/lat-lng folder for the finished tile
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if not os.path.exists(self._output + "/Tiles/"+str(self._lat)+"_"+str(self._long) + "\\Textures"):
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os.makedirs(self._output + "/Tiles/"+str(self._lat)+"_"+str(self._long)+"\\Textures")
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mstr_msg("mstr_orthographic", "Created tile textures folder")
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# Generate the Tiles/terrain folder for the finished tile
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if not os.path.exists(self._output + "/Tiles/"+str(self._lat)+"_"+str(self._long) + "\\terrain"):
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os.makedirs(self._output + "/Tiles/"+str(self._lat)+"_"+str(self._long)+"\\terrain")
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mstr_msg("mstr_orthographic", "Created tile terrain folder")
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for layer in layers:
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# Generate the mask
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mg = mstr_maskgen( [self._lat, cur_tile_y, self._long, cur_tile_x], self._vstep, layer[0], layer[1], layer[2] )
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mg._build_mask()
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# Generate the layer
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lg = mstr_layergen(layer[0], layer[1], self._lat, cur_tile_y, self._long, cur_tile_x, layer[2])
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lg.genlayer()
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mstr_msg("mstr_orthographic", "All layers created")
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# We should have all layers now.
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# Snap a photo with our satellite :)
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mstr_msg("mstr_orthographic", "Generating ortho photo")
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pg = mstr_photogen(self._lat, self._long, cur_tile_y, cur_tile_x)
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pg.genphoto()
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mstr_msg("mstr_orthographic", "Ortho photo generated")
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mstr_msg("", "") # <- Spacer
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mstr_msg("", "") # <- Spacer
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# Store a terrain file
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'''
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dmt = self._findWidthOfLongitude(bb_lat) * mstr_zl_18
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sy = bb_lat + (self._vstep / 2)
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sx = bb_lng + (mstr_zl_18 / 2)
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ter_content = """A
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800
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TERRAIN
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LOAD_CENTER """ + str(sy) + " " + str(sx) + " " + str(dmt) + " " + str(mstr_photores) + """
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BASE_TEX_NOWRAP ../Textures/"""+str(cur_tile_y)+"_"+str(cur_tile_x)+".jpg"+"""
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NO_ALPHA"""
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with open(self._output + "\\Tiles\\"+str(bb_lat)+"_"+str(bb_lng)+"\\terrain\\"+str(cur_tile_y)+"_"+str(cur_tile_x)+".ter", 'w') as textfile:
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textfile.write(ter_content)
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mstr_msg("mstr_orthographic", "Wrote .ter file")
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'''
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# Adjust longitude coordinates
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cur_tile_x = cur_tile_x+1
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bb_lng = bb_lng + mstr_zl_18
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bb_lng_edge = bb_lng_edge + mstr_zl_18
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mstr_msg("mstr_orthographic", "Adjustment of longitude performed")
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# Clear out cache
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if mstr_clear_cache == True:
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ch = glob.glob(mstr_datafolder + "_cache\\*")
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for f in ch:
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os.remove(f)
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mstr_msg("mstr_orthographic", "Cleared cache")
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# Adjust latitude and all other values when we get here
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cur_tile_y = cur_tile_y+1
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cur_tile_x = 1
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bb_lng = self._long
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bb_lng_edge = self._long + mstr_zl_18
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bb_lat = bb_lat + self._vstep
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bb_lat_edge = bb_lat_edge + self._vstep
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mstr_msg("mstr_orthographic", "Adjustment of latitude performed")
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# Checks which layers need to be generated, and what kind of layer it is
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def determineLayerWork(self):
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mstr_msg("mstr_orthographic", "Checking for work to be performed")
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layers = []
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tilexml = mstr_datafolder + "_cache\\tile.xml"
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xml = mstr_osmxml(0,0)
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way = xml.acquire_waypoint_data(tilexml)
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rls = xml.acquire_relations(tilexml)
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for l in mstr_ortho_layers:
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# Check if there is anything to render
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has_way = False
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has_rls = False
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for w in way:
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if w[2] == l[0] and w[3] == l[1]:
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has_way = True
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break
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for r in rls:
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if l[0] in r[1] and l[1] in r[1]:
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has_rls = True
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break
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if has_way == True or has_rls == True:
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mstr_msg("mstr_orthographic", "Adding: " + l[0]+":"+l[1])
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is_line = False
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for s in mstr_ortho_layers:
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if s[0] == l[0] and s[1] == l[1]:
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if isinstance(s[2], int) == False:
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is_line = False
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break
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if isinstance(s[2], int) == True:
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is_line = True
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break
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ly = (l[0], l[1], is_line)
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layers.append(ly)
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mstr_msg("mstr_orthographic", "A total of " + str(len(layers)) + " layers were found")
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return layers
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# Constructor of class. Takes longitude and latitude.
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def __init__(self, lat, lng, outfolder, pwd):
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self._lat = lat
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self._long = lng
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self._output = outfolder
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self._pwd = pwd
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self._vstep = self._findVerticalStepping()
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mstr_msg("mstr_orthographic", "Initiated with LAT: " + str(lat) + ", LNG: " + str(lng))
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