def Draw(self, hints={}):
#Clear widget drawing
self.clear_widgets()
if self.randomBackgroundColour:
self.DrawCallback(Color(random.random(), random.random(), random.random()))
self.DrawCallback(Rectangle(pos=(0., 0), size=(self.width, self.height)))
if self.map is None:
return
#Draw background
Color(253./255., 251./255., 224./255.)
bg = Rectangle(pos=(0., 0), size=(self.width, self.height))
self.DrawCallback(bg)
#Draw foreground
tl = slippy.num2deg(self.tileNum[0], self.tileNum[1], self.tileZoom)
br = slippy.num2deg(self.tileNum[0]+1, self.tileNum[1]+1, self.tileZoom)
wgs84proj = slippy.TileProj(self.tileNum[0], self.tileNum[1], self.tileZoom, self.size[0], self.size[1])
projObjects = {"wgs84": wgs84proj.Proj, "tile_size": self.size}
self.map.Draw(self.tileNum, self.tileZoom, hints, self.DrawCallback, projObjects)
def GetTile(self, tilex, tiley, zoom, out, tolerateMissing = True): tileNum = (zoom, tilex, tiley) nw = slippy.num2deg(tilex, tiley, zoom) se = slippy.num2deg(tilex+1, tiley+1, zoom) queryArea = [nw[1], nw[0], se[1], se[0]] nodesOfInterest = GetNodesInSlippyTile(self.spatialIndex, tileNum, self.osmObjectStore, self.versionStore, tolerateMissing) self.NodesToCompleteData(nodesOfInterest, queryArea, out)
def Do(self, osmParseObj, tileCode, tileZoom, proj, resolution = 512):
tl = slippy.num2deg(tileCode[0], tileCode[1], tileZoom)
#tileResolution = 512
br = slippy.num2deg(tileCode[0]+1, tileCode[1]+1, tileZoom)
#proj = slippy.TileProj(tileCode[0], tileCode[1], tileZoom, tileResolution, tileResolution)
bounds = (tl[1], br[0], br[1], tl[0])
wgs84proj = slippy.TileProj(tileCode[0], tileCode[1], tileZoom, resolution, resolution)
wayLines = []
w = self.DoPoints(osmParseObj, bounds, wgs84proj, proj)
wayLines.extend(w)
w = self.DoLinesAndPolys(osmParseObj, bounds, wgs84proj, proj)
wayLines.extend(w)
w2 = self.DoMultipolygons(osmParseObj, bounds, wgs84proj, proj)
wayLines.extend(w2)
return wayLines, ("tile", wgs84proj.tileWidth, wgs84proj.tileHeight)
def on_touch_move(self, touch): #Calculate distance dragged relativeMove = (touch.pos[0] - self.lastTouch[0], touch.pos[1] - self.lastTouch[1]) self.lastTouch = touch.pos fractRelativeMove = (relativeMove[0] / self.size[0], relativeMove[1] / self.size[1]) #Update view left, right, top, bottom = self.GetViewBounds() dx = (right - left) * fractRelativeMove[0] dy = (bottom - top) * fractRelativeMove[1] tilex, tiley = slippy.deg2num(self.viewPos[0], self.viewPos[1], self.viewZoom) tilex -= dx tiley += dy self.viewPos = slippy.num2deg(tilex, tiley, self.viewZoom) self.UpdateExistingTilePositions() self.AddNewTilesAsRequired() self.RemoveUnneededTiles()