256 lines
8.3 KiB
PHP
256 lines
8.3 KiB
PHP
<?php
|
|
|
|
// Load the least-square regression class.
|
|
require_once('./polynomial/XY_Plot.php' );
|
|
|
|
//-----------------------------------------------------------
|
|
$imageWidth = 969;
|
|
$imageHeight = 330;
|
|
|
|
$leftMargin = 25;
|
|
$rightMargin = 50;
|
|
|
|
$topMargin = 25;
|
|
$bottomMargin = 40;
|
|
|
|
// Verticle scale
|
|
$Y_MajorScale = 0.1;
|
|
$Y_MinorScale = $Y_MajorScale / 5;
|
|
$X_MajorScale = 0.1;
|
|
$X_MinorScale = $X_MajorScale / 5;
|
|
//-----------------------------------------------------------
|
|
|
|
// Create image
|
|
$image = @imageCreate( $imageWidth , $imageHeight )
|
|
or die( "Cannot Initialize new GD image stream" );
|
|
|
|
//---------------------------------
|
|
// Create basic color map
|
|
//---------------------------------
|
|
$colorMap = array();
|
|
|
|
//$colorMap[ "Background" ] = imageColorAllocate( $image , 0xDB , 0xB3 , 0xE6 );
|
|
$colorMap[ "Background" ] = imageColorAllocate( $image , 255, 255, 255 );
|
|
|
|
// Create a standard color palette
|
|
$colorMap[ "Black" ] = imagecolorallocate( $image, 0, 0, 0 );
|
|
$colorMap[ "Red" ] = imagecolorallocate( $image, 192, 0, 0 );
|
|
$colorMap[ "Green" ] = imagecolorallocate( $image, 0, 192, 0 );
|
|
$colorMap[ "Blue" ] = imagecolorallocate( $image, 0, 0, 192 );
|
|
$colorMap[ "Brown" ] = imagecolorallocate( $image, 48, 48, 0 );
|
|
$colorMap[ "Cyan" ] = imagecolorallocate( $image, 0, 192, 192 );
|
|
$colorMap[ "Purple" ] = imagecolorallocate( $image, 192, 0, 192 );
|
|
$colorMap[ "LightGray" ] = imagecolorallocate( $image, 192, 192, 192 );
|
|
|
|
$colorMap[ "DarkGray" ] = imagecolorallocate( $image, 48, 48, 48 );
|
|
$colorMap[ "LightRed" ] = imagecolorallocate( $image, 255, 0, 0 );
|
|
$colorMap[ "LightGreen" ] = imagecolorallocate( $image, 0, 255, 0 );
|
|
$colorMap[ "LightBlue" ] = imagecolorallocate( $image, 0, 0, 255 );
|
|
$colorMap[ "Yellow" ] = imagecolorallocate( $image, 255, 255, 0 );
|
|
$colorMap[ "LightCyan" ] = imagecolorallocate( $image, 0, 255, 255 );
|
|
$colorMap[ "LightPurple" ] = imagecolorallocate( $image, 255, 0, 255 );
|
|
$colorMap[ "White" ] = imagecolorallocate( $image, 255, 255, 255 );
|
|
$colorMap[ "DarkYellow" ] = imagecolorallocate( $image, 255, 214, 0 );
|
|
|
|
$colorMap[ "Gray10" ] = imagecolorallocate( $image , 26 , 26 , 26 );
|
|
$colorMap[ "Gray20" ] = imagecolorallocate( $image , 51 , 51 , 51 );
|
|
$colorMap[ "Gray30" ] = imagecolorallocate( $image , 77 , 77 , 77 );
|
|
$colorMap[ "Gray40" ] = imagecolorallocate( $image , 102 , 102 , 102 );
|
|
$colorMap[ "Gray50" ] = imagecolorallocate( $image , 128 , 128 , 128 );
|
|
$colorMap[ "Gray60" ] = imagecolorallocate( $image , 154 , 154 , 154 );
|
|
$colorMap[ "Gray70" ] = imagecolorallocate( $image , 180 , 180 , 180 );
|
|
$colorMap[ "Gray80" ] = imagecolorallocate( $image , 205 , 205 , 205 );
|
|
$colorMap[ "Gray90" ] = imagecolorallocate( $image , 230 , 230 , 230 );
|
|
|
|
// New plot
|
|
$plot = new XY_PlotClass( $image );
|
|
|
|
// Setup boundaries
|
|
$plot->sizeWindow
|
|
(
|
|
$leftMargin,
|
|
$topMargin,
|
|
$imageWidth - $rightMargin,
|
|
$imageHeight - $bottomMargin
|
|
);
|
|
|
|
// Draw border around graph area.
|
|
imageRectangle
|
|
(
|
|
$image,
|
|
$leftMargin,
|
|
$topMargin,
|
|
$imageWidth - $rightMargin,
|
|
$imageHeight - $bottomMargin,
|
|
$colorMap[ "LightGray" ]
|
|
);
|
|
|
|
//---------------------------------------------------------------------------
|
|
//
|
|
//---------------------------------------------------------------------------
|
|
function plotRenderData( $data, $color )
|
|
{
|
|
global $plot;
|
|
|
|
$plot->resetData();
|
|
foreach ( $data as $point )
|
|
$plot->addData( $point[ 0 ], $point[ 1 ] );
|
|
|
|
$plot->setColor( $color );
|
|
|
|
$plot->autoScaleX_MinMax( 0 );
|
|
$plot->autoScaleY_MinMax( 1 );
|
|
}
|
|
|
|
//---------------------------------------------------------------------------
|
|
// Custom vertical text-- just return value with dolor sign in front
|
|
//---------------------------------------------------------------------------
|
|
function textCallback( $Value )
|
|
{
|
|
return number_format( $Value, 1 );
|
|
}
|
|
|
|
//---------------------------------------------------------------------------
|
|
//
|
|
//---------------------------------------------------------------------------
|
|
function plotAddScale()
|
|
{
|
|
global $plot;
|
|
global $X_MajorScale;
|
|
global $X_MinorScale;
|
|
global $Y_MajorScale;
|
|
global $Y_MinorScale;
|
|
global $colorMap;
|
|
|
|
// Setup and draw minor horizontal scale (right to left).
|
|
$plot->SetX_MinorDivisionScale( $X_MinorScale );
|
|
$plot->SetX_MinorDivisionColor( $colorMap[ "Gray90" ] );
|
|
$plot->DrawX_MinorDivisions();
|
|
|
|
// Setup and draw minor vertical scale (top to bottom).
|
|
$plot->SetY_MinorDivisionScale( $Y_MinorScale );
|
|
$plot->SetY_MinorDivisionColor( $colorMap[ "Gray90" ] );
|
|
$plot->DrawY_MinorDivisions();
|
|
|
|
//----------------------------------
|
|
// Setup and draw major horizontal scale (right to left).
|
|
//----------------------------------
|
|
|
|
// Extend lines 5 pixels past margins for label.
|
|
$plot->SetX_MajorDivisionExtention( 5 );
|
|
|
|
// Scale.
|
|
$plot->SetX_MajorDivisionScale( $X_MajorScale );
|
|
|
|
// Division lines are blue.
|
|
$plot->SetX_MajorDivisionColor( $colorMap[ "Gray80" ] );
|
|
|
|
// Text labels are dark gray.
|
|
$plot->SetX_MajorDivisionTextColor( $colorMap[ "Black" ] );
|
|
$plot->SetX_MajorTextCallback( "textCallback" );
|
|
|
|
// Draw it.
|
|
$plot->DrawX_MajorDivisions();
|
|
|
|
//----------------------------------
|
|
// Setup and draw major vertical scale (top to bottom)
|
|
//----------------------------------
|
|
|
|
// Extend lines 5 pixels past margins for label.
|
|
$plot->SetY_MajorDivisionExtention( 5 );
|
|
|
|
// Scale.
|
|
$plot->SetY_MajorDivisionScale( $Y_MajorScale );
|
|
|
|
// Divisions in dark gray.
|
|
$plot->SetY_MajorDivisionColor( $colorMap[ "Gray80" ] );
|
|
$plot->SetY_MajorTextCallback( "textCallback" );
|
|
|
|
// Lables in dark gray.
|
|
$plot->SetY_MajorDivisionTextColor( $colorMap[ "Black" ] );
|
|
|
|
// Draw it.
|
|
$plot->DrawY_MajorDivisions();
|
|
}
|
|
|
|
function plotRenderRegression( $regression, $coefficients, $min, $max, $color )
|
|
{
|
|
global $plot;
|
|
global $imageWidth;
|
|
global $leftMargin;
|
|
global $rightMargin;
|
|
|
|
$plot->resetData();
|
|
|
|
$frameWidth = $imageWidth - $leftMargin - $rightMargin;
|
|
for ( $xIndex = 0; $xIndex < $frameWidth; ++$xIndex )
|
|
{
|
|
$x = $xIndex * ( $max - $min ) / $frameWidth + $min;
|
|
$y = $regression->interpolate( $coefficients, $x );
|
|
$plot->addData( $x, $y );
|
|
}
|
|
|
|
$plot->setColor( $color );
|
|
$plot->renderWithLines();
|
|
|
|
}
|
|
|
|
|
|
function plotRectangleRange($scaleFrom,$scaleTo,$xFrom,$xTo, $color)
|
|
{
|
|
global $plot;
|
|
global $imageWidth;
|
|
global $leftMargin;
|
|
global $rightMargin;
|
|
global $imageHeight;
|
|
global $topMargin;
|
|
global $bottomMargin;
|
|
global $image;
|
|
|
|
$plot->resetData();
|
|
$frameWidth = $imageWidth - $leftMargin - $rightMargin;
|
|
$scaleCounter = $frameWidth/($scaleTo-$scaleFrom);
|
|
|
|
if ($color == 'green_value')
|
|
$rgb = imagecolorallocatealpha($image, 0, 255, 0, 100);
|
|
else if ($color == 'yellow_value')
|
|
$rgb = imagecolorallocatealpha($image, 255, 255, 0, 100);
|
|
else if ($color == 'red_value')
|
|
$rgb = imagecolorallocatealpha($image, 255, 0, 0, 100);
|
|
|
|
|
|
if ($leftMargin+$xTo*$scaleCounter > $imageWidth-$rightMargin) $val=$imageWidth-$rightMargin;
|
|
else $val=$leftMargin+$xTo*$scaleCounter;
|
|
|
|
imagefilledrectangle($image, $leftMargin+$xFrom*$scaleCounter, $topMargin, $val, $imageHeight-$bottomMargin, $rgb);
|
|
}
|
|
|
|
|
|
function plotCircleRange($scaleXFrom,$scaleXTo,$scaleYFrom,$scaleYTo,$xParam,$yParam)
|
|
{
|
|
global $plot;
|
|
global $imageWidth;
|
|
global $leftMargin;
|
|
global $rightMargin;
|
|
global $imageHeight;
|
|
global $topMargin;
|
|
global $bottomMargin;
|
|
global $image;
|
|
|
|
$plot->resetData();
|
|
$frameWidth = $imageWidth - $leftMargin - $rightMargin;
|
|
$frameHeight = $imageHeight - $topMargin - $bottomMargin;
|
|
$scaleXCounter = $frameWidth/($scaleXTo-$scaleXFrom);
|
|
$scaleYCounter = $frameHeight/($scaleYTo-$scaleYFrom);
|
|
if ($leftMargin+$xParam*$scaleXCounter > $imageWidth-$rightMargin) $valX=$imageWidth-$rightMargin;
|
|
else $valX=$leftMargin+$xParam*$scaleXCounter;
|
|
|
|
$valY=($imageHeight-$bottomMargin)-$yParam*$scaleYCounter;
|
|
//$grey = imagecolorallocatealpha($image, 150, 150, 150, 100);
|
|
$black = imagecolorallocate( $image , 0 , 0 , 0 );
|
|
imagefilledellipse($image, $valX, $valY, 10, 10, $black);
|
|
}
|
|
|
|
|
|
|
|
?>
|