White Vertical Linear Meters

pythondemo\whitevlinearmeter.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 250 x 75 pixels with very light grey (0xeeeeee) backgruond
    # and a light grey (0xccccccc) 3-pixel thick rounded frame
    m = LinearMeter(70, 260, 0xeeeeee, 0xcccccc)
    m.setRoundedFrame(Transparent)
    m.setThickFrame(3)

    # Set the scale region top-left corner at (28, 30), with size of 20 x 196 pixels. The scale
    # labels are located on the left (default - implies vertical meter)
    m.setMeter(28, 30, 20, 196)

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

    # Demostrate different types of color scales and putting them at different positions
    smoothColorScale = [0, 0x6666ff, 25, 0x00bbbb, 50, 0x00ff00, 75, 0xffff00, 100, 0xff0000]
    stepColorScale = [0, 0x33ff33, 50, 0xffff33, 80, 0xff3333, 100]
    highLowColorScale = [0, 0x6666ff, 70, Transparent, 100, 0xff0000]

    if chartIndex == 0 :
        # Add the smooth color scale at the default position
        m.addColorScale(smoothColorScale)
    elif chartIndex == 1 :
        # Add the step color scale at the default position
        m.addColorScale(stepColorScale)
    elif chartIndex == 2 :
        # Add the high low scale at the default position
        m.addColorScale(highLowColorScale)
    elif chartIndex == 3 :
        # Add the smooth color scale starting at x = 28 (left of scale) with zero width and ending
        # at x = 28 with 20 pixels width
        m.addColorScale(smoothColorScale, 28, 0, 28, 20)
    elif chartIndex == 4 :
        # Add the smooth color scale starting at x = 38 (center of scale) with zero width and ending
        # at x = 28 with 20 pixels width
        m.addColorScale(smoothColorScale, 38, 0, 28, 20)
    else :
        # Add the smooth color scale starting at x = 48 (right of scale) with zero width and ending
        # at x = 28 with 20 pixels width
        m.addColorScale(smoothColorScale, 48, 0, 28, 20)

    # In this demo, we demostrate pointers of different shapes
    if chartIndex < 3 :
        # Add a blue (0x0000cc) pointer of default shape at the specified value
        m.addPointer(value, 0x0000cc)
    else :
        # Add a blue (0x0000cc) pointer of triangular shape the specified value
        m.addPointer(value, 0x0000cc).setShape(TriangularPointer, 0.7, 0.5)

    # Add a title using 8pt Arial Bold font with a border color background
    m.addTitle("Temp C", "Arial Bold", 8, TextColor).setBackground(0xcccccc)

    # Add a text box at the bottom-center. Display the value using white (0xffffff) 8pt Arial Bold
    # font on a black (0x000000) background with rounded border.
    t = m.addText(m.getWidth() / 2, m.getHeight() - 8, m.formatValue(value, "2"), "Arial Bold", 8,
        0xffffff, Bottom)
    t.setBackground(0x000000)
    t.setRoundedCorners(3)
    t.setMargin2(5, 5, 2, 1)

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


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