/
MapManager.py
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/
MapManager.py
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'''
Created on Oct 10, 2013
@author: tpmaxwell
'''
import sys
import os.path
import vtk, time
import numpy as np
import os, vtk
from PointCollection import PlotType
packagePath = os.path.dirname( __file__ )
defaultMapDir = os.path.join( packagePath, 'data' )
defaultMapFile = os.path.join( defaultMapDir, 'earth2k.jpg' )
defaultMapCut = -180
def NormalizeLon( lon ):
while lon < 0: lon = lon + 360
return lon % 360
class MapManager:
def __init__(self, **args ):
self.baseMapActor = None
self.sphereActor = None
self.map_opacity = args.get('opacity',0.5)
self.map_border_size = args.get( "map_border_size", 20 )
self.roi = args.get( "roi", [ 0.0, 360.0, -90.0, 90.0 ] )
self.world_cut = args.get( "world_cut", -1 )
self.enableBasemap = args.get( "enable_basemap", True )
self.y0 = -90.0
def getMapOpacity(self):
return self.map_opacity
def setMapOpacity(self, opacity_vals, **args ):
self.map_opacity = opacity_vals[0]
self.updateMapOpacity()
def getSphericalMap( self, **args ):
thetaResolution = args.get( "thetaRes", 32 )
phiResolution = args.get( "phiRes", 32 )
radius = args.get( "radius", 100 )
if self.sphereActor == None:
self.sphere = vtk.vtkSphereSource()
self.sphere.SetThetaResolution( thetaResolution )
self.sphere.SetPhiResolution( phiResolution )
self.sphere.SetRadius( radius )
self.sphere.SetEndTheta( 359.999 )
mesh = self.sphere.GetOutput()
self.sphereTexmapper = vtk.vtkTextureMapToSphere()
if vtk.VTK_MAJOR_VERSION <= 5: self.sphereTexmapper.SetInput(mesh)
else: self.sphereTexmapper.SetInputData(mesh)
self.sphereTexmapper.PreventSeamOff()
self.sphereMapper = vtk.vtkPolyDataMapper()
self.sphereMapper.SetInputConnection(self.sphereTexmapper.GetOutputPort())
imageFlipper = vtk.vtkImageFlip()
if vtk.VTK_MAJOR_VERSION <= 5: imageFlipper.SetInput(self.sphericalBaseImage)
else: imageFlipper.SetInputData(self.sphericalBaseImage)
imageFlipper.SetFilteredAxis( 1 )
self.sphereTexture = vtk.vtkTexture()
self.sphereTexture.SetInputConnection( imageFlipper.GetOutputPort() )
self.sphereActor = vtk.vtkActor()
self.sphereActor.SetMapper(self.sphereMapper)
self.sphereActor.SetTexture(self.sphereTexture)
# self.sphereActor.GetProperty().SetOpacity( self.map_opacity )
self.sphereActor.SetVisibility( False )
return self.sphereActor
def updateMapOpacity(self, cmap_index=0 ):
if self.baseMapActor:
self.baseMapActor.SetOpacity( self.map_opacity )
# if self.sphereActor:
# self.sphereActor.GetProperty().SetOpacity( self.map_opacity )
self.render()
def build( self, **args ):
if self.enableBasemap:
world_map = None
dataPosition = None
if world_map == None:
self.map_file = defaultMapFile
self.map_cut = defaultMapCut
else:
self.map_file = world_map[0].name
self.map_cut = world_map[1]
roi_size = [ self.roi[1] - self.roi[0], self.roi[3] - self.roi[2] ]
map_cut_size = [ roi_size[0] + 2*self.map_border_size, roi_size[1] + 2*self.map_border_size ]
if map_cut_size[0] > 360.0: map_cut_size[0] = 360.0
if map_cut_size[1] > 180.0: map_cut_size[1] = 180.0
# data_origin = self.input().GetOrigin() if self.input() else [ 0, 0, 0 ]
if self.world_cut == -1:
if (self.roi <> None):
if roi_size[0] > 180:
self.ComputeCornerPosition()
self.world_cut = self.NormalizeMapLon( self.x0 )
else:
dataPosition = [ ( self.roi[1] + self.roi[0] ) / 2.0, ( self.roi[3] + self.roi[2] ) / 2.0 ]
else:
self.world_cut = self.map_cut
self.imageInfo = vtk.vtkImageChangeInformation()
self.image_reader = vtk.vtkJPEGReader()
self.image_reader.SetFileName( self.map_file )
self.image_reader.Update()
world_image = self.image_reader.GetOutput()
self.sphericalBaseImage = self.RollMap( world_image )
new_dims, scale = None, None
if dataPosition == None:
self.baseImage = self.RollMap( world_image )
new_dims = self.baseImage.GetDimensions()
scale = [ 360.0/new_dims[0], 180.0/new_dims[1], 1 ]
else:
self.baseImage, new_dims = self.getBoundedMap( world_image, dataPosition, map_cut_size, self.map_border_size )
scale = [ map_cut_size[0]/new_dims[0], map_cut_size[1]/new_dims[1], 1 ]
self.baseMapActor = vtk.vtkImageActor()
self.baseMapActor.SetOrigin( 0.0, 0.0, 0.0 )
self.baseMapActor.SetScale( scale )
self.baseMapActor.SetOrientation( 0.0, 0.0, 0.0 )
self.baseMapActor.SetOpacity( self.map_opacity )
mapCorner = [ self.x0, self.y0 ]
self.baseMapActor.SetPosition( mapCorner[0], mapCorner[1], 0.1 )
if vtk.VTK_MAJOR_VERSION <= 5: self.baseMapActor.SetInput(self.baseImage)
else: self.baseMapActor.SetInputData(self.baseImage)
self.mapCenter = [ self.x0 + map_cut_size[0]/2.0, self.y0 + map_cut_size[1]/2.0 ]
def getBaseMapActor(self):
if self.baseMapActor == None: self.build()
return self.baseMapActor
def setMapVisibility( self, topo ):
if topo == PlotType.Planar:
mapCorner = [ self.x0, self.y0 ]
self.baseMapActor.SetOrigin( 0.0, 0.0, 0.0 )
self.baseMapActor.SetPosition( mapCorner[0], mapCorner[1], 0.1 )
self.baseMapActor.SetVisibility( True )
self.sphereActor.SetVisibility( False )
print "Positioning map at location %s" % ( str( ( self.x0, self.y0) ) )
elif topo == PlotType.Spherical:
self.baseMapActor.SetVisibility( False )
self.sphereActor.SetVisibility( True )
def ComputeCornerPosition( self ):
if (self.roi[0] >= -180) and (self.roi[1] <= 180) and (self.roi[1] > self.roi[0]):
self.x0 = -180
return 180
if (self.roi[0] >= 0) and (self.roi[1] <= 360) and (self.roi[1] > self.roi[0]):
self.x0 = 0
return 0
self.x0 = int( round( self.roi[0] / 10.0 ) ) * 10
# print "Set Corner pos: %s, roi: %s " % ( str(self.x0), str(self.roi) )
def GetScaling( self, image_dims ):
return 360.0/image_dims[0], 180.0/image_dims[1], 1
def GetFilePath( self, cut ):
filename = "%s_%d.jpg" % ( self.world_image, cut )
return os.path.join( self.data_dir, filename )
def RollMap( self, baseImage ):
if self.world_cut == self.map_cut: return baseImage
baseExtent = baseImage.GetExtent()
baseSpacing = baseImage.GetSpacing()
x0 = baseExtent[0]
x1 = baseExtent[1]
newCut = self.NormalizeMapLon( self.world_cut )
delCut = newCut - self.map_cut
# print " %%%%%% Roll Map %%%%%%: world_cut=%.1f, map_cut=%.1f, newCut=%.1f " % ( float(self.world_cut), float(self.map_cut), float(newCut) )
imageLen = x1 - x0 + 1
sliceSize = imageLen * ( delCut / 360.0 )
sliceCoord = int( round( x0 + sliceSize) )
extent = list( baseExtent )
extent[0:2] = [ x0, x0 + sliceCoord - 1 ]
clip0 = vtk.vtkImageClip()
if vtk.VTK_MAJOR_VERSION <= 5: clip0.SetInput(baseImage)
else: clip0.SetInputData(baseImage)
clip0.SetOutputWholeExtent( extent[0], extent[1], extent[2], extent[3], extent[4], extent[5] )
extent[0:2] = [ x0 + sliceCoord, x1 ]
clip1 = vtk.vtkImageClip()
if vtk.VTK_MAJOR_VERSION <= 5: clip1.SetInput(baseImage)
else: clip1.SetInputData(baseImage)
clip1.SetOutputWholeExtent( extent[0], extent[1], extent[2], extent[3], extent[4], extent[5] )
append = vtk.vtkImageAppend()
append.SetAppendAxis( 0 )
append.AddInputConnection( clip1.GetOutputPort() )
append.AddInputConnection( clip0.GetOutputPort() )
imageInfo = vtk.vtkImageChangeInformation()
imageInfo.SetInputConnection( append.GetOutputPort() )
imageInfo.SetOutputOrigin( 0.0, 0.0, 0.0 )
imageInfo.SetOutputExtentStart( 0, 0, 0 )
imageInfo.SetOutputSpacing( baseSpacing[0], baseSpacing[1], baseSpacing[2] )
imageInfo.Update()
result = imageInfo.GetOutput()
return result
def NormalizeMapLon( self, lon ):
while ( lon < ( self.map_cut - 0.01 ) ): lon = lon + 360
return ( ( lon - self.map_cut ) % 360 ) + self.map_cut
def getBoundedMap( self, baseImage, dataLocation, map_cut_size, map_border_size ):
baseImage.Update()
baseExtent = baseImage.GetExtent()
baseSpacing = baseImage.GetSpacing()
x0 = baseExtent[0]
x1 = baseExtent[1]
y0 = baseExtent[2]
y1 = baseExtent[3]
imageLen = [ x1 - x0 + 1, y1 - y0 + 1 ]
selectionDim = [ map_cut_size[0]/2, map_cut_size[1]/2 ]
dataXLoc = dataLocation[0]
imageInfo = vtk.vtkImageChangeInformation()
dataYbounds = [ dataLocation[1]-selectionDim[1], dataLocation[1]+selectionDim[1] ]
vertExtent = [ y0, y1 ]
bounded_dims = None
if dataYbounds[0] > -90.0:
yOffset = dataYbounds[0] + 90.0
extOffset = int( round( ( yOffset / 180.0 ) * imageLen[1] ) )
vertExtent[0] = y0 + extOffset
self.y0 = dataYbounds[0]
if dataYbounds[1] < 90.0:
yOffset = 90.0 - dataYbounds[1]
extOffset = int( round( ( yOffset / 180.0 ) * imageLen[1] ) )
vertExtent[1] = y1 - extOffset
overlapsBorder = ( self.NormalizeMapLon(dataLocation[0]-selectionDim[0]) > self.NormalizeMapLon(dataLocation[0]+selectionDim[0]) )
if overlapsBorder:
cut0 = self.NormalizeMapLon( dataXLoc + selectionDim[0] )
sliceSize = imageLen[0] * ( ( cut0 - self.map_cut ) / 360.0 )
sliceCoord = int( round( x0 + sliceSize) )
extent = list( baseExtent )
extent[0:2] = [ x0, x0 + sliceCoord - 1 ]
clip0 = vtk.vtkImageClip()
clip0.SetInput( baseImage )
clip0.SetOutputWholeExtent( extent[0], extent[1], vertExtent[0], vertExtent[1], extent[4], extent[5] )
size0 = extent[1] - extent[0] + 1
self.x0 = dataLocation[0] - selectionDim[0]
cut1 = self.NormalizeMapLon( self.x0 )
sliceSize = imageLen[0] * ( ( cut1 - self.map_cut )/ 360.0 )
sliceCoord = int( round( x0 + sliceSize) )
extent[0:2] = [ x0 + sliceCoord, x1 ]
clip1 = vtk.vtkImageClip()
clip1.SetInput( baseImage )
clip1.SetOutputWholeExtent( extent[0], extent[1], vertExtent[0], vertExtent[1], extent[4], extent[5] )
size1 = extent[1] - extent[0] + 1
# print "Set Corner pos: %s, cuts: %s " % ( str(self.x0), str( (cut0, cut1) ) )
append = vtk.vtkImageAppend()
append.SetAppendAxis( 0 )
append.AddInput( clip1.GetOutput() )
append.AddInput( clip0.GetOutput() )
bounded_dims = ( size0 + size1, vertExtent[1] - vertExtent[0] + 1 )
imageInfo.SetInputConnection( append.GetOutputPort() )
else:
self.x0 = dataXLoc - selectionDim[0]
cut0 = self.NormalizeMapLon( self.x0 )
sliceSize = imageLen[0] * ( ( cut0 - self.map_cut ) / 360.0 )
sliceCoord = int( round( x0 + sliceSize) )
extent = list( baseExtent )
extent[0] = x0 + sliceCoord - 1
cut1 = self.NormalizeMapLon( dataXLoc + selectionDim[0] )
sliceSize = imageLen[0] * ( ( cut1 - self.map_cut ) / 360.0 )
sliceCoord = int( round( x0 + sliceSize) )
extent[1] = x0 + sliceCoord
clip = vtk.vtkImageClip()
clip.SetInput( baseImage )
clip.SetOutputWholeExtent( extent[0], extent[1], vertExtent[0], vertExtent[1], extent[4], extent[5] )
bounded_dims = ( extent[1] - extent[0] + 1, vertExtent[1] - vertExtent[0] + 1 )
# print "Set Corner pos: %s, dataXLoc: %s " % ( str(self.x0), str( (dataXLoc, selectionDim[0]) ) )
imageInfo.SetInputConnection( clip.GetOutputPort() )
imageInfo.SetOutputOrigin( 0.0, 0.0, 0.0 )
imageInfo.SetOutputExtentStart( 0, 0, 0 )
imageInfo.SetOutputSpacing( baseSpacing[0], baseSpacing[1], baseSpacing[2] )
result = imageInfo.GetOutput()
result.Update()
return result, bounded_dims