ChartDirector 6.0 (Perl Edition)
Continuous Contour Coloring
Source Code Listing
#!/usr/bin/perl # In the sample code, the ChartDirector for Perl module is assumed to be in "../lib" use File::Basename; use lib (dirname($0)."/../lib") =~ /(.*)/; use perlchartdir; # The x and y coordinates of the grid my $dataX = [-10, -9, -8, -7, -6, -5, -4, -3, -2, -1, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10]; my $dataY = [-10, -9, -8, -7, -6, -5, -4, -3, -2, -1, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10]; # The values at the grid points. In this example, we will compute the values using the formula z = # Sin(x / 2) * Sin(y / 2). my $dataZ = [(0) x (scalar(@$dataX) * scalar(@$dataY))]; for(my $yIndex = 0; $yIndex < scalar(@$dataY); ++$yIndex) { my $y = $dataY->[$yIndex]; for(my $xIndex = 0; $xIndex < scalar(@$dataX); ++$xIndex) { my $x = $dataX->[$xIndex]; $dataZ->[$yIndex * scalar(@$dataX) + $xIndex] = sin($x / 2.0) * sin($y / 2.0); } } # Create a XYChart object of size 600 x 500 pixels my $c = new XYChart(600, 500); # Add a title to the chart using 18 points Times New Roman Bold Italic font $c->addTitle("Nano Lattice Twister Field Intensity ", "timesbi.ttf", 18); # Set the plotarea at (75, 40) and of size 400 x 400 pixels. Use semi-transparent black (80000000) # dotted lines for both horizontal and vertical grid lines $c->setPlotArea(75, 40, 400, 400, -1, -1, -1, $c->dashLineColor(0x80000000, $perlchartdir::DotLine), -1); # Set x-axis and y-axis title using 12 points Arial Bold Italic font $c->xAxis()->setTitle("Lattice X Direction (nm)", "arialbi.ttf", 12); $c->yAxis()->setTitle("Lattice Y Direction (nm)", "arialbi.ttf", 12); # Set x-axis and y-axis labels to use Arial Bold font $c->xAxis()->setLabelStyle("arialbd.ttf"); $c->yAxis()->setLabelStyle("arialbd.ttf"); # When auto-scaling, use tick spacing of 40 pixels as a guideline $c->yAxis()->setTickDensity(40); $c->xAxis()->setTickDensity(40); # Add a contour layer using the given data my $layer = $c->addContourLayer($dataX, $dataY, $dataZ); # Set the contour color to transparent $layer->setContourColor($perlchartdir::Transparent); # Move the grid lines in front of the contour layer $c->getPlotArea()->moveGridBefore($layer); # Add a color axis (the legend) in which the left center point is anchored at (495, 240). Set the # length to 370 pixels and the labels on the right side. my $cAxis = $layer->setColorAxis(495, 240, $perlchartdir::Left, 370, $perlchartdir::Right); # Add a bounding box to the color axis using light grey (eeeeee) as the background and dark grey # (444444) as the border. $cAxis->setBoundingBox(0xeeeeee, 0x444444); # Add a title to the color axis using 12 points Arial Bold Italic font $cAxis->setTitle("Twist Pressure (Twist-Volt)", "arialbi.ttf", 12); # Set color axis labels to use Arial Bold font $cAxis->setLabelStyle("arialbd.ttf"); # Use smooth gradient coloring $cAxis->setColorGradient(1); # Output the chart $c->makeChart("smoothcontour.jpg") |
#!/usr/bin/perl # In the sample code, the ChartDirector for Perl module is assumed to be in "../lib" use File::Basename; use lib (dirname($0)."/../lib") =~ /(.*)/; use perlchartdir; # The x and y coordinates of the grid my $dataX = [-10, -9, -8, -7, -6, -5, -4, -3, -2, -1, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10]; my $dataY = [-10, -9, -8, -7, -6, -5, -4, -3, -2, -1, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10]; # The values at the grid points. In this example, we will compute the values using the formula z = # Sin(x / 2) * Sin(y / 2). my $dataZ = [(0) x (scalar(@$dataX) * scalar(@$dataY))]; for(my $yIndex = 0; $yIndex < scalar(@$dataY); ++$yIndex) { my $y = $dataY->[$yIndex]; for(my $xIndex = 0; $xIndex < scalar(@$dataX); ++$xIndex) { my $x = $dataX->[$xIndex]; $dataZ->[$yIndex * scalar(@$dataX) + $xIndex] = sin($x / 2.0) * sin($y / 2.0); } } # Create a XYChart object of size 600 x 500 pixels my $c = new XYChart(600, 500); # Add a title to the chart using 18 points Times New Roman Bold Italic font $c->addTitle("Nano Lattice Twister Field Intensity ", "timesbi.ttf", 18); # Set the plotarea at (75, 40) and of size 400 x 400 pixels. Use semi-transparent black (80000000) # dotted lines for both horizontal and vertical grid lines $c->setPlotArea(75, 40, 400, 400, -1, -1, -1, $c->dashLineColor(0x80000000, $perlchartdir::DotLine), -1); # Set x-axis and y-axis title using 12 points Arial Bold Italic font $c->xAxis()->setTitle("Lattice X Direction (nm)", "arialbi.ttf", 12); $c->yAxis()->setTitle("Lattice Y Direction (nm)", "arialbi.ttf", 12); # Set x-axis and y-axis labels to use Arial Bold font $c->xAxis()->setLabelStyle("arialbd.ttf"); $c->yAxis()->setLabelStyle("arialbd.ttf"); # When auto-scaling, use tick spacing of 40 pixels as a guideline $c->yAxis()->setTickDensity(40); $c->xAxis()->setTickDensity(40); # Add a contour layer using the given data my $layer = $c->addContourLayer($dataX, $dataY, $dataZ); # Set the contour color to transparent $layer->setContourColor($perlchartdir::Transparent); # Move the grid lines in front of the contour layer $c->getPlotArea()->moveGridBefore($layer); # Add a color axis (the legend) in which the left center point is anchored at (495, 240). Set the # length to 370 pixels and the labels on the right side. my $cAxis = $layer->setColorAxis(495, 240, $perlchartdir::Left, 370, $perlchartdir::Right); # Add a bounding box to the color axis using light grey (eeeeee) as the background and dark grey # (444444) as the border. $cAxis->setBoundingBox(0xeeeeee, 0x444444); # Add a title to the color axis using 12 points Arial Bold Italic font $cAxis->setTitle("Twist Pressure (Twist-Volt)", "arialbi.ttf", 12); # Set color axis labels to use Arial Bold font $cAxis->setLabelStyle("arialbd.ttf"); # Use smooth gradient coloring $cAxis->setColorGradient(1); # Output the chart binmode(STDOUT); print "Content-type: image/jpeg\n\n"; print $c->makeChart2($perlchartdir::JPG); |