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#############################################################
## ##
## Copyright (c) 2003-2017 by The University of Queensland ##
## Centre for Geoscience Computing ##
## http://earth.uq.edu.au/centre-geoscience-computing ##
## ##
## Primary Business: Brisbane, Queensland, Australia ##
## Licensed under the Open Software License version 3.0 ##
## http://www.apache.org/licenses/LICENSE-2.0 ##
## ##
#############################################################
from __future__ import division
from esys.lsm.vis import core
from .object import LightSource
class Camera(core.Camera):
def __init__(self, posn, lookAt, angle=70.0):
core.Camera.__init__(self)
self.posn = posn
self.lookAt = lookAt
self.angle = angle
self.type = "orthographic"
self.right = (-1.0,0.0,0.0) # right-handed coordinate system
self.up = ( 0.0,1.0,0.0)
self.direction = ( 0.0,0.0,0.1)
self.setZoom(1.0)
def getPosn(self):
return self.posn
def setPosn(self, posn):
self.posn = posn
def getLookAt(self):
return self.lookAt
def setLookAt(self, lookAt):
self.lookAt = lookAt
def setDirection(self, dir):
self.direction = dir
def setZoom(self, factor):
self.zoomFactor = factor
def getZoom(self):
return self.zoomFactor
def setAspect(self, sizeTuple):
ratio = abs(float(sizeTuple[0])/float(sizeTuple[1]))
self.right = (-ratio,0.0,0.0) # right handed coordinate system
self.up = (0.0,1.0,0.0)
def getUp(self):
return core.Vec3(self.up)*(2.05/self.zoomFactor)
def getRight(self):
return core.Vec3(self.right)*(2.05/self.zoomFactor)
def writeSdl(self, f):
f.write("camera {\n")
f.write(str(self.type))
f.write("\nlocation <")
f.write(str.join(",", (list(map(str,self.posn)))))
f.write(">\ndirection <")
f.write(str.join(",", (list(map(str,self.direction)))))
#f.write(">\nangle ")
#f.write(str(self.angle))
f.write(">\nup <")
f.write(str.join(",", (list(map(str, self.getUp())))))
f.write(">\nright <")
f.write(str.join(",", (list(map(str, self.getRight())))))
f.write(
">\nlook_at <"
+
str.join(",", (list(map(str,self.lookAt))))
+
">"
)
f.write("\n}")
class LightedCamera(Camera):
def __init__(self, posn, lookAt, angle=70.0):
Camera.__init__(self, posn, lookAt, angle)
self.lightSource = LightSource(posn=self.getPosn())
def setLightSource(self, lightSource):
self.lightSource = lightSource
self.lightSource.setPosn(self.getPosn())
def setPosn(self, posn):
Camera.setPosn(self, posn)
self.lightSource.setPosn(posn)
def writeSdl(self, f):
Camera.writeSdl(self, f)
self.lightSource.writeSdl(f)
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