ROOT
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Reference Guide
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demoshelp.py
Go to the documentation of this file.
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## \file
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## \ingroup tutorial_pyroot
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## \notebook
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## Display demo help.
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##
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## \macro_code
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##
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## \author Wim Lavrijsen
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import
os
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from
ROOT
import
TCanvas, TPaveText
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from
ROOT
import
gROOT
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chelp =
TCanvas
(
'chelp'
,
'Help to run demos'
, 200, 10, 700, 500 )
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welcome =
TPaveText
( .1, .8, .9, .97 )
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welcome.AddText(
'Welcome to the ROOT demos'
)
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welcome.SetTextFont( 32 )
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welcome.SetTextColor( 4 )
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welcome.SetFillColor( 24 )
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welcome.Draw()
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hdemo =
TPaveText
( .05, .05, .95, .7 )
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hdemo.SetTextAlign( 12 )
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hdemo.SetTextFont( 52 )
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text =
"""- Run demo hsimple.py first. Then in any order
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- Click left mouse button to execute one demo
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- Click right mouse button to see the title of the demo
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- Click on 'Close Bar' to exit from the demo menu
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- Select 'File/Print' to print a Postscript view of the canvas
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- You can execute a demo with the mouse or type commands
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- During the demo (try on this canvas) you can:
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.... Use left button to move/grow/etc objects
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.... Use middle button to pop overlapping objects
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.... Use right button to get an object sensitive pop-up
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"""
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for
line
in
text.split( os.linesep ):
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hdemo.AddText( line )
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hdemo.SetAllWith(
'....'
,
'color'
, 2 )
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hdemo.SetAllWith(
'....'
,
'font'
, 72 )
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hdemo.SetAllWith(
'....'
,
'size'
, 0.04 )
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hdemo.Draw()
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chelp.Update()
TCanvas
The Canvas class.
Definition
TCanvas.h:23
TPaveText
A Pave (see TPave) with text, lines or/and boxes inside.
Definition
TPaveText.h:21
tutorials
pyroot
demoshelp.py
ROOT master - Reference Guide Generated on Mon Dec 9 2024 11:37:44 (GVA Time) using Doxygen 1.9.8