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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 ##
## ##
#############################################################
"""
Defines the L{CylinderExtractor} class.
"""
from .color import Colors
from .extractor import Extractor
class CylinderExtractor(Extractor):
"""
Objects of this class can be used in conjunction with the
L{esys.lsm.vis.core.GlyphData} class for extracting cylinder
info from data-records.
"""
def __init__(
self,
radiusMap = lambda dataRecord: dataRecord.getRadius(),
endPt1Map = lambda dataRecord: dataRecord.getEndPt1(),
endPt2Map = lambda dataRecord: dataRecord.getEndPt2(),
modifierMap = lambda dataRecord: None,
radiusScale = 1.0
):
"""
Constructs the extractor.
@type radiusMap: callable
@param radiusMap: A callable which accepts a single data-record
argument and returns a radius (float) value.
@type endPt1Map: callable
@param endPt1Map: A callable which accepts a single data-record
argument and returns a 3 float-element sequence (ie a 3D coordinate).
@type endPt2Map: callable
@param endPt2Map: A callable which accepts a single data-record
argument and returns a 3 float-element sequence (ie a 3D coordinate).
@type modifierMap: callable
@param modifierMap: A callable which accepts a single data-record
argument and returns an object modifier (or sequence of modifiers).
"""
self.radiusMap = radiusMap
self.endPt1Map = endPt1Map
self.endPt2Map = endPt2Map
self.modifierMap = modifierMap
self.radiusScale = radiusScale
def getRadius(self, dataRecord):
return self.radiusMap(dataRecord)*self.radiusScale
def getEndPt1(self, dataRecord):
return self.endPt1Map(dataRecord)
def getEndPt2(self, dataRecord):
return self.endPt2Map(dataRecord)
def getModifier(self, dataRecord):
return self.modifierMap(dataRecord)
def getRadiusScale(self):
return self.radiusScale
class DiskExtractor(Extractor):
"""
Objects of this class can be used in conjunction with the
L{esys.lsm.vis.core.GlyphData} class for extracting cylinder
info from data-records.
"""
def __init__(
self,
radiusMap = lambda dataRecord: dataRecord.getRadius(),
centerMap = lambda dataRecord: dataRecord.getCenter(),
heightMap = lambda dataRecord: 0.001,
directionMap = lambda dataRecord: None,
modifierMap = lambda dataRecord: None,
radiusScale = 1.0
):
"""
Constructs the extractor.
@type radiusMap: callable
@param radiusMap: A callable which accepts a single data-record
argument and returns a radius (float) value.
@type centerMap: callable
@param centerMap: A callable which accepts a single data-record
argument and returns a 3 float-element sequence (ie a 3D coordinate).
@type heightMap: callable
@param heightMap: A callable which accepts a single data-record
argument and returns a float (height of the cylinder).
@type modifierMap: callable
@param modifierMap: A callable which accepts a single data-record
argument and returns a color.
"""
self.radiusMap = radiusMap
self.centerMap = centerMap
self.heightMap = heightMap
self.directionMap = directionMap
self.modifierMap = modifierMap
self.radiusScale = radiusScale
def getRadius(self, dataRecord):
return self.radiusMap(dataRecord)*self.radiusScale
def getCenter(self, dataRecord):
return self.centerMap(dataRecord)
def getHeight(self, dataRecord):
return self.heightMap(dataRecord)
def getDirection(self, dataRecord):
return self.directionMap(dataRecord)
def getModifier(self, dataRecord):
return self.modifierMap(dataRecord)
def getRadiusScale(self):
return self.radiusScale
|
