This example demonstrates a vertical linear meter with multiple pointers.
This example demonstrates a vertical linear meter with multiple pointers.
ChartDirector 7.0 (Python Edition)
Multi-Pointer Vertical Meter
Source Code Listing
#!/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 *
# The values to display on the meter
value0 = 30.99
value1 = 45.35
value2 = 77.64
# Create an LinearMeter object of size 60 x 245 pixels, using silver background with a 2 pixel black
# 3D depressed border.
m = LinearMeter(60, 245, silverColor(), 0, -2)
# Set the scale region top-left corner at (25, 30), with size of 20 x 200 pixels. The scale labels
# are located on the left (default - implies vertical meter)
m.setMeter(25, 30, 20, 200)
# Set meter scale from 0 - 100, with a tick every 10 units
m.setScale(0, 100, 10)
# Set 0 - 50 as green (99ff99) zone, 50 - 80 as yellow (ffff66) zone, and 80 - 100 as red (ffcccc)
# zone
m.addZone(0, 50, 0x99ff99)
m.addZone(50, 80, 0xffff66)
m.addZone(80, 100, 0xffcccc)
# Add deep red (000080), deep green (008000) and deep blue (800000) pointers to reflect the values
m.addPointer(value0, 0x000080)
m.addPointer(value1, 0x008000)
m.addPointer(value2, 0x800000)
# Add a text box label at top-center (30, 5) using Arial Bold/8pt/deep blue (000088), with a light
# blue (9999ff) background
m.addText(30, 5, "Temp C", "Arial Bold", 8, 0x000088, TopCenter).setBackground(0x9999ff)
# Output the chart
m.makeChart("multivmeter.png")