importProgressDemo.py

## @package python.demo.importProgressDemo
# Example script demonstrates receiving log messages and progress information from opals modules
import opals
from opals import Import
 
 
def progress_bar(currStep, stepCount, prefix="", size=60 ):
    x = int(size*currStep/float(stepCount))
    print(f" {prefix} [{'#'*x}{'.'*(size-x)}] {currStep}/{stepCount}", end='\r', flush=True)
 
 
class Control(opals.Types.IControlObject):
    def __init__(self):
        super().__init__()
        self.stages = None
        self.prefix = None
        self.stepCount = None
 
    def setStages(self, stages):
        self.stages = stages  # store stage message string list
 
    def setCurrStage(self, stageIdx):
        self.prefix = f"{stageIdx+1}.stage: {self.stages[stageIdx]}"
 
    def setSteps(self, stepCount):
        self.stepCount = stepCount  # in this case value corresponds to number of points within laz file
 
    def setCurrStep(self, currStep):
        progress_bar(currStep, self.stepCount, self.prefix)
        if currStep == self.stepCount:
            print()  # add line feed
 
    def log(self, loglevel, threadid, message):
        # only output error messages
        if loglevel <= opals.Types.LogLevel.error:
            print(f"{loglevel}: {message}")
 
 
#
# Import strip11.laz, strip21.laz and strip31.laz, dataset into an ODM
#
control = Control()
imp = Import.Import(inFile=["strip11.laz","strip21.laz","strip31.laz"], outFile="test.odm", screenLogLevel=opals.Types.LogLevel.none)
imp.set_controlObject(control)
imp.run()