77 lines
2.5 KiB
Python
77 lines
2.5 KiB
Python
# ===============================================================================
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# Copyright (C) 2010 Diego Duclos
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#
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# This file is part of eos.
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#
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# eos is free software: you can redistribute it and/or modify
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# it under the terms of the GNU Lesser General Public License as published by
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# the Free Software Foundation, either version 2 of the License, or
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# (at your option) any later version.
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#
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# eos is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU Lesser General Public License for more details.
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#
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# You should have received a copy of the GNU Lesser General Public License
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# along with eos. If not, see <http://www.gnu.org/licenses/>.
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# ===============================================================================
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import math
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from abc import ABCMeta, abstractmethod
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class Graph(metaclass=ABCMeta):
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def __init__(self):
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self._cache = {}
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### Old stuff
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def getYForX(self, x, miscInputs, xSpec, ySpec, fit, tgt):
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raise NotImplementedError
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def _xIter(self, fit, extraData, xRange, xAmount):
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rangeLow, rangeHigh = self._limitXRange(xRange, fit, extraData)
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# Amount is amount of ranges between points here, not amount of points
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step = (rangeHigh - rangeLow) / xAmount
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if step == 0:
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yield xRange[0]
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else:
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current = rangeLow
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# Take extra half step to make sure end of range is always included
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# despite any possible float errors
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while current <= (rangeHigh + step / 2):
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yield current
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current += step
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def _limitXRange(self, xRange, fit, extraData):
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rangeLow, rangeHigh = sorted(xRange)
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limitLow, limitHigh = self._getXLimits(fit, extraData)
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rangeLow = max(limitLow, rangeLow)
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rangeHigh = min(limitHigh, rangeHigh)
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return rangeLow, rangeHigh
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def _getInputLimits(self, inputHandle, inputUnit, fit):
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return -math.inf, math.inf
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def clearCache(self, key=None):
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if key is None:
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self._cache.clear()
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elif key in self._cache:
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del self._cache[key]
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class SmoothGraph(Graph, metaclass=ABCMeta):
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def getPlotPoints(self, mainInput, miscInputs, xSpec, ySpec, fit, tgt):
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xs = []
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ys = []
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for x in self._xIter(fit, extraData, xRange, xAmount):
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xs.append(x)
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ys.append(self.getYForX(fit, extraData, x))
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return xs, ys
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