Coverage for python/lsst/faro/measurement/example_VisitMeasurementTasks.py: 45%

18 statements  

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1# This file is part of faro. 

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 

22import astropy.units as u 

23from lsst.pipe.base import Struct, Task 

24from lsst.pex.config import Config 

25from lsst.verify import Measurement 

26 

27__all__ = ("StarFracTask",) 

28 

29 

30class StarFracTask(Task): 

31 ConfigClass = Config 

32 _DefaultName = "starFracTask" 

33 

34 def run(self, metricName, catalog, vIds): 

35 self.log.info("Measuring %s", metricName) 

36 if not catalog.isContiguous(): 

37 catalog = catalog.copy(deep=True) 

38 extended = catalog.get("base_ClassificationExtendedness_value") 

39 good_extended = extended[~catalog.get("base_ClassificationExtendedness_flag")] 

40 n_gals = sum(good_extended) 

41 frac = 100 * (len(good_extended) - n_gals) / len(good_extended) 

42 meas = Measurement("starFrac", frac * u.percent) 

43 return Struct(measurement=meas)