White Horizontal Bar Meters

pythondemo\whitehbarmeter.py
#!/usr/bin/python

# The ChartDirector for Python module is assumed to be in "../lib"
import sys, os
sys.path.insert(0, os.path.join(os.path.abspath(sys.path[0]), "..", "lib"))

from pychartdir import *

def createChart(chartIndex) :

    # The value to display on the meter
    value = 75.35

    # Create a LinearMeter object of size 260 x 80 pixels with very light grey (0xeeeeee) backgruond
    # and a light grey (0xccccccc) 3-pixel thick rounded frame
    m = LinearMeter(260, 80, 0xeeeeee, 0xaaaaaa)
    m.setRoundedFrame(Transparent)
    m.setThickFrame(3)

    # Set the scale region top-left corner at (18, 24), with size of 222 x 20 pixels. The scale
    # labels are located on the top (implies horizontal meter)
    m.setMeter(18, 24, 222, 20, Top)

    # Set meter scale from 0 - 100, with a tick every 10 units
    m.setScale(0, 100, 10)

    # Demostrate different types of color scales
    smoothColorScale = [0, 0x0000ff, 25, 0x0088ff, 50, 0x00ff00, 75, 0xdddd00, 100, 0xff0000]
    stepColorScale = [0, 0x00dd00, 50, 0xffff00, 80, 0xff0000, 100]
    highLowColorScale = [0, 0x0000ff, 40, Transparent, 60, Transparent, 100, 0xff0000]
    highColorScale = [70, Transparent, 100, 0xff0000]

    if chartIndex == 0 :
        # Add a blue (0x0088ff) bar from 0 to value with glass effect and 4 pixel rounded corners
        m.addBar(0, value, 0x0088ff, glassEffect(NormalGlare, Top), 4)
        # Add a 5-pixel thick smooth color scale at y = 48 (below the meter scale)
        m.addColorScale(smoothColorScale, 48, 5)
    elif chartIndex == 1 :
         # Add a green (0x00cc00) bar from 0 to value with bar lighting effect
        m.addBar(0, value, 0x00cc00, barLighting())
        # Add a 5-pixel thick step color scale at y = 48 (below the meter scale)
        m.addColorScale(stepColorScale, 48, 5)
    elif chartIndex == 2 :
        # Add a purple (0x8833dd) bar from 0 to value with glass effect and 4 pixel rounded corners
        m.addBar(0, value, 0x8833dd, glassEffect(NormalGlare, Top), 4)
        # Add a 5-pixel thick high/low color scale at y = 48 (below the meter scale)
        m.addColorScale(highLowColorScale, 48, 5)
    elif chartIndex == 3 :
          # Add an orange (0xff8800) bar from 0 to value with cylinder lighting effect
        m.addBar(0, value, 0xff8800, cylinderEffect())
        # Add a high only color scale at y = 48 (below the meter scale) with thickness varying from
        # 0 to 8
        m.addColorScale(highColorScale, 48, 0, 48, 8)
    elif chartIndex == 4 :
        # Add a red (0xee3333) bar from 0 to value with glass effect and 4 pixel rounded corners
        m.addBar(0, value, 0xee3333, glassEffect(NormalGlare, Top), 4)
        # Add a 5-pixel thick smooth color scale at y = 48 (below the meter scale)
        m.addColorScale(smoothColorScale, 48, 5)
    else :
        # Add a grey (0xaaaaaa) bar from 0 to value
        m.addBar(0, value, 0xaaaaaa)
        # Add a 5-pixel thick step color scale at y = 48 (below the meter scale)
        m.addColorScale(stepColorScale, 48, 5)

    # Add a label right aligned to (243, 65) using 8pt Arial Bold font
    m.addText(243, 65, "Temperature C", "Arial Bold", 8, TextColor, Right)

    # Add a text box left aligned to (18, 65). Display the value using white (0xffffff) 8pt Arial
    # Bold font on a black (0x000000) background with depressed rounded border.
    t = m.addText(18, 65, m.formatValue(value, "2"), "Arial", 8, 0xffffff, Left)
    t.setBackground(0x000000, 0x000000, -1)
    t.setRoundedCorners(3)

    # Output the chart
    m.makeChart("whitehbarmeter%s.png" % chartIndex)


createChart(0)
createChart(1)
createChart(2)
createChart(3)
createChart(4)
createChart(5)