svgprimitveplotter.py

 
 
# For safety since we encountered a hanging process
# when this file is executed with basf2
from ROOT import Belle2  # make Belle2 namespace available
 
import os
 
 
from ROOT import gSystem
 
gSystem.Load('libtracking_trackFindingCDC')
 
 
Plotter = Belle2.TrackFindingCDC.SVGPrimitivePlotter
AttributeMap = Belle2.TrackFindingCDC.PrimitivePlotter.AttributeMap
 
plotter = Plotter()
 
# Attach a style to a group
# Gets inherited by all sub elements
groupAttributes = AttributeMap()
groupAttributes['stroke'] = 'black'
groupAttributes['stroke-width'] = '5'
 
# Start a group
plotter.startGroup(groupAttributes)
 
# Draw an arrow
plotter.drawLine(0, 0, 100, 100)
 
# Elements may also have attributes, which override the defaults from the group
lineAttributes = AttributeMap()
lineAttributes['stroke'] = 'green'
 
# Draw a line with a styling
plotter.drawLine(0, 100, 100, 0, lineAttributes)
 
# Terminate the group
plotter.endGroup()
 
# Draw a circle arc
startX = 10
startY = 50
 
endX = 85
endY = 50
 
radius = 40
longArc = False
sweepFlag = False
 
arcAttributes = AttributeMap()
arcAttributes["fill"] = "none"
arcAttributes["stroke"] = "violet"
arcAttributes["stroke-width"] = "5"
 
plotter.drawCircleArc(startX, startY, endX, endY, radius, longArc, sweepFlag, arcAttributes)
 
# Draw an arrow
arrowAttributes = AttributeMap()
arrowAttributes["stroke"] = "yellow"
arrowAttributes["stroke-width"] = "5"
 
plotter.drawArrow(50, 90, 50, 10, arrowAttributes)
 
 
# Now test the animation behaviour.
# Only changing the visibility from hidden
# to visible is supported currently.
# Therefore the special attribute _showAt
# is used. In general attributes starting with
# _ are not propagated to the svg but have
# a special meaning
 
# Draw a row of circles that pop up one after the other
circleAttributes = AttributeMap()
circleAttributes["stroke"] = "green"
circleAttributes["stroke-width"] = "5"
circleAttributes["fill"] = "white"
circleAttributes["_showAt"] = "0s"
 
y = 25
r = 15
 
for secs, x in enumerate((25, 40, 55, 70)):
    circleAttributes["_showAt"] = str(secs) + "s"
    plotter.drawCircle(x, y, r, circleAttributes)
 
 
testFileName = "test.svg"
 
plotter.save(testFileName)
 
plotter.clear()
 
# Output the lines as a test case
with open(testFileName) as input_file:
    for line in input_file:
        print(line, end=' ')
 
os.remove(testFileName)