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LSST Data Management Base Package
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colorUtilities.py
Go to the documentation of this file.
1# This file is part of meas_base.
2#
3# Developed for the LSST Data Management System.
4# This product includes software developed by the LSST Project
5# (https://www.lsst.org).
6# See the COPYRIGHT file at the top-level directory of this distribution
7# for details of code ownership.
8#
9# This program is free software: you can redistribute it and/or modify
10# it under the terms of the GNU General Public License as published by
11# the Free Software Foundation, either version 3 of the License, or
12# (at your option) any later version.
13#
14# This program is distributed in the hope that it will be useful,
15# but WITHOUT ANY WARRANTY; without even the implied warranty of
16# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
17# GNU General Public License for more details.
18#
19# You should have received a copy of the GNU General Public License
20# along with this program. If not, see <https://www.gnu.org/licenses/>.
21
22"""Color Utilities such as extracting color information.
23"""
24
25import numpy as np
26from lsst.afw.image import Color
27
28__all__ = (
29 "colorExtractor",
30)
31
32
33def colorExtractor(record, columnNameValue="psf_color_value", columnNameType="psf_color_type"):
34 try:
35 c = record[columnNameValue]
36 ct = record[columnNameType]
37 if np.isfinite(c):
38 color = Color(colorValue=c, colorType=ct)
39 else:
40 color = Color()
41 except Exception:
42 color = Color()
43 return color
Describe the colour of a source.
Definition Color.h:23
colorExtractor(record, columnNameValue="psf_color_value", columnNameType="psf_color_type")