Surface Projection

pythondemo\surfaceprojection.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 *

# The x and y coordinates of the grid
dataX = [0, 1, 2, 3, 4, 5, 6, 7, 8]
dataY = [0, 1, 2, 3, 4, 5, 6, 7, 8]

# Use random numbers for the z values on the XY grid
r = RanSeries(11)
dataZ = r.get2DSeries(len(dataX), len(dataY), 0.1, 1.9)

# Create a SurfaceChart object of size 680 x 580 pixels
c = SurfaceChart(680, 580)

# Set the center of the plot region at (310, 280), and set width x depth x height to 320 x 320 x 240
# pixels
c.setPlotRegion(310, 280, 320, 320, 240)

# Set the elevation and rotation angles to 30 and 45 degrees
c.setViewAngle(30, 45)

# Set the data to use to plot the chart
c.setData(dataX, dataY, dataZ)

# Spline interpolate data to a 80 x 80 grid for a smooth surface
c.setInterpolation(80, 80)

# Use semi-transparent black (c0000000) for x and y major surface grid lines. Use dotted style for x
# and y minor surface grid lines.
majorGridColor = 0xc0000000
minorGridColor = c.dashLineColor(majorGridColor, DotLine)
c.setSurfaceAxisGrid(majorGridColor, majorGridColor, minorGridColor, minorGridColor)

# Add XY projection
c.addXYProjection()

# Set contour lines to semi-transparent white (0x7fffffff)
c.setContourColor(0x7fffffff)

# Add a color axis (the legend) in which the left center is anchored at (620, 250). Set the length
# to 200 pixels and the labels on the right side.
c.setColorAxis(620, 250, Left, 200, Right)

# Set the x, y and z axis titles using 12 pt Arial Bold font
c.xAxis().setTitle("X Title<*br*>Placeholder", "Arial Bold", 12)
c.yAxis().setTitle("Y Title<*br*>Placeholder", "Arial Bold", 12)
c.zAxis().setTitle("Z Title Placeholder", "Arial Bold", 12)

# Output the chart
c.makeChart("surfaceprojection.png")