/
pDraw.php
4340 lines (3736 loc) · 157 KB
/
pDraw.php
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<?php
/*
pDraw - class extension with drawing methods
Version : 2.2.3-dev
Made by : Jean-Damien POGOLOTTI
Maintainedby: Momchil Bozhinov
Last Update : 01/01/2018
This file can be distributed under the license you can find at:
http://www.pchart.net/license
You can find the whole class documentation on the pChart web site.
*/
namespace pChart;
/* The GD extension is mandatory */
if (!function_exists("gd_info")) {
echo "GD extension must be loaded. \r\n";
exit();
}
use pChart\pData;
use pChart\pException;
define("DIRECTION_VERTICAL", 690001);
define("DIRECTION_HORIZONTAL", 690002);
define("SCALE_POS_LEFTRIGHT", 690101);
define("SCALE_POS_TOPBOTTOM", 690102);
define("SCALE_MODE_FLOATING", 690201);
define("SCALE_MODE_START0", 690202);
define("SCALE_MODE_ADDALL", 690203);
define("SCALE_MODE_ADDALL_START0", 690204);
define("SCALE_MODE_MANUAL", 690205);
define("SCALE_SKIP_NONE", 690301);
define("SCALE_SKIP_SAME", 690302);
define("SCALE_SKIP_NUMBERS", 690303);
define("TEXT_ALIGN_TOPLEFT", 690401);
define("TEXT_ALIGN_TOPMIDDLE", 690402);
define("TEXT_ALIGN_TOPRIGHT", 690403);
define("TEXT_ALIGN_MIDDLELEFT", 690404);
define("TEXT_ALIGN_MIDDLEMIDDLE", 690405);
define("TEXT_ALIGN_MIDDLERIGHT", 690406);
define("TEXT_ALIGN_BOTTOMLEFT", 690407);
define("TEXT_ALIGN_BOTTOMMIDDLE", 690408);
define("TEXT_ALIGN_BOTTOMRIGHT", 690409);
define("POSITION_TOP", 690501);
define("POSITION_BOTTOM", 690502);
define("LABEL_POS_LEFT", 690601);
define("LABEL_POS_CENTER", 690602);
define("LABEL_POS_RIGHT", 690603);
define("LABEL_POS_TOP", 690604);
define("LABEL_POS_BOTTOM", 690605);
define("LABEL_POS_INSIDE", 690606);
define("LABEL_POS_OUTSIDE", 690607);
define("ORIENTATION_HORIZONTAL", 690701);
define("ORIENTATION_VERTICAL", 690702);
define("ORIENTATION_AUTO", 690703);
define("LEGEND_NOBORDER", 690800);
define("LEGEND_BOX", 690801);
define("LEGEND_ROUND", 690802);
define("LEGEND_VERTICAL", 690901);
define("LEGEND_HORIZONTAL", 690902);
define("LEGEND_FAMILY_BOX", 691051);
define("LEGEND_FAMILY_CIRCLE", 691052);
define("LEGEND_FAMILY_LINE", 691053);
define("DISPLAY_AUTO", 691001);
define("DISPLAY_MANUAL", 691002);
define("LABELING_ALL", 691011);
define("LABELING_DIFFERENT", 691012);
define("BOUND_MIN", 691021);
define("BOUND_MAX", 691022);
define("BOUND_BOTH", 691023);
define("BOUND_LABEL_POS_TOP", 691031);
define("BOUND_LABEL_POS_BOTTOM", 691032);
define("BOUND_LABEL_POS_AUTO", 691033);
define("CAPTION_LEFT_TOP", 691041);
define("CAPTION_RIGHT_BOTTOM", 691042);
define("GRADIENT_SIMPLE", 691051);
define("GRADIENT_EFFECT_CAN", 691052);
define("LABEL_TITLE_NOBACKGROUND", 691061);
define("LABEL_TITLE_BACKGROUND", 691062);
define("LABEL_POINT_NONE", 691071);
define("LABEL_POINT_CIRCLE", 691072);
define("LABEL_POINT_BOX", 691073);
define("ZONE_NAME_ANGLE_AUTO", 691081);
define("PI", 3.14159265);
define("ALL", 69);
define("NONE", 31);
define("AUTO", 690000);
define("OUT_OF_SIGHT", -10000000000000);
class pDraw
{
var $aColorCache = [];
/* Last generated chart info */
var $isChartLayoutStacked = FALSE; // Last layout : regular or stacked
/* Image settings, size, quality, .. */
var $XSize = 0; // Width of the picture
var $YSize = 0; // Height of the picture
var $Picture; // GD picture object
var $Antialias = TRUE; // Turn anti alias on or off
var $AntialiasQuality = 0; // Quality of the anti aliasing implementation (0-1)
var $Mask = []; // Already drawn pixels mask (Filled circle implementation)
var $TransparentBackground = FALSE; // Just to know if we need to flush the alpha channels when rendering
/* Graph area settings */
var $GraphAreaX1 = 0; // Graph area X origin
var $GraphAreaY1 = 0; // Graph area Y origin
var $GraphAreaX2 = 0; // Graph area bottom right X position
var $GraphAreaY2 = 0; // Graph area bottom right Y position
var $GraphAreaXdiff = 0; // $X2 - $X1
var $GraphAreaYdiff = 0; // $Y2 - $Y1
/* Scale settings */
# var $ScaleMinDivHeight = 20; // Minimum height for scale divs # UNUSED
/* Font properties */
var $FontName = "pChart/fonts/GeosansLight.ttf"; // Default font file
var $FontSize = 12; // Default font size
var $FontBox = NULL; // Return the bounding box of the last written string
var $FontColorR = 0; // Default color settings
var $FontColorG = 0; // Default color settings
var $FontColorB = 0; // Default color settings
var $FontColorA = 100; // Default transparency
/* Shadow properties */
var $Shadow = FALSE; // Turn shadows on or off
var $ShadowX = 0; // X Offset of the shadow
var $ShadowY = 0; // Y Offset of the shadow
var $ShadowR = 0; // R component of the shadow
var $ShadowG = 0; // G component of the shadow
var $ShadowB = 0; // B component of the shadow
var $Shadowa = 0; // Alpha level of the shadow
var $ShadowColor = NULL;
/* Data Set */
var $myData = []; // Attached myData
/* Class constructor */
function __construct(int $XSize, int $YSize, bool $TransparentBackground = FALSE)
{
$this->myData = new pData();
$this->XSize = $XSize;
$this->YSize = $YSize;
if (!($XSize > 0 && $YSize > 0)){
$this->Picture = imagecreatetruecolor(1, 1);
throw pException::InvalidDimentions("Image dimensions (X * Y) must be > 0!");
}
$memory_limit = ini_get("memory_limit");
if (intval($memory_limit) * 1024 * 1024 < $XSize * $YSize * 3 * 1.7){ # Momchil: for black & white gifs -> use 1 and not 3
echo "Memory limit: ".$memory_limit." Mb ".PHP_EOL;
echo "Estimated required: ".round(($XSize * $YSize * 3 * 1.7)/(1024 * 1024), 3)." Mb ".PHP_EOL;
$this->Picture = imagecreatetruecolor(1, 1);
throw pException::InvalidDimentions("Can not allocate enough memory for an image that big! Check your PHP memory_limit configuration option.");
}
$this->Picture = imagecreatetruecolor($XSize, $YSize);
$this->TransparentBackground = $TransparentBackground;
if ($TransparentBackground) {
imagealphablending($this->Picture, FALSE); # TRUE by default on True color images
imagefilledrectangle($this->Picture, 0, 0, $XSize, $YSize, imagecolorallocatealpha($this->Picture, 255, 255, 255, 127));
imagealphablending($this->Picture, TRUE);
imagesavealpha($this->Picture, TRUE);
} else {
imagefilledrectangle($this->Picture, 0, 0, $XSize, $YSize, $this->AllocateColor(255, 255, 255));
}
$this->ShadowColor = $this->allocateColor($this->ShadowR, $this->ShadowG, $this->ShadowB, $this->Shadowa);
# TODO if PHP 7.2 consider imageantialias
#imageantialias($this->Picture, TRUE);
}
function __destruct()
{
imagedestroy($this->Picture);
}
/* Destroy the image and start over. Required for pBarcodes */
function resize(int $XSize, int $YSize)
{
imagedestroy($this->Picture);
$this->__construct($XSize, $YSize, $this->TransparentBackground);
}
/* Fix box coordinates */
function fixBoxCoordinates($Xa, $Ya, $Xb, $Yb)
{
return [
min($Xa, $Xb),
min($Ya, $Yb),
max($Xa, $Xb),
max($Ya, $Yb)
];
}
/* Draw a polygon */
function drawPolygon($Points, array $Format = [])
{
$R = isset($Format["R"]) ? $Format["R"] : 0;
$G = isset($Format["G"]) ? $Format["G"] : 0;
$B = isset($Format["B"]) ? $Format["B"] : 0;
$Alpha = isset($Format["Alpha"]) ? $Format["Alpha"] : 100;
$NoFill = isset($Format["NoFill"]) ? $Format["NoFill"] : FALSE;
$NoBorder = isset($Format["NoBorder"]) ? $Format["NoBorder"] : FALSE;
$Surrounding = isset($Format["Surrounding"]) ? $Format["Surrounding"] : NULL;
$BorderR = isset($Format["BorderR"]) ? $Format["BorderR"] : $R;
$BorderG = isset($Format["BorderG"]) ? $Format["BorderG"] : $G;
$BorderB = isset($Format["BorderB"]) ? $Format["BorderB"] : $B;
$BorderAlpha = isset($Format["BorderAlpha"]) ? $Format["BorderAlpha"] : $Alpha / 2;
$SkipX = isset($Format["SkipX"]) ? $Format["SkipX"] : OUT_OF_SIGHT;
$SkipY = isset($Format["SkipY"]) ? $Format["SkipY"] : OUT_OF_SIGHT;
#extract($Format); # Don't use is for frequently used functions
/* Calling the ImageFilledPolygon() function over the $Points array will round it */
$Backup = $Points;
if ($Surrounding != NULL) {
$BorderR = $R + $Surrounding;
$BorderG = $G + $Surrounding;
$BorderB = $B + $Surrounding;
}
($SkipX != OUT_OF_SIGHT) AND $SkipX = floor($SkipX);
($SkipY != OUT_OF_SIGHT) AND $SkipY = floor($SkipY);
$RestoreShadow = $this->Shadow;
if (!$NoFill) {
if ($this->Shadow) {
$this->Shadow = FALSE;
$Shadow = []; // MOMCHIL: local var missing
for ($i = 0; $i <= count($Points) - 1; $i = $i + 2) {
$Shadow[] = $Points[$i] + $this->ShadowX;
$Shadow[] = $Points[$i + 1] + $this->ShadowY;
}
$this->drawPolygon($Shadow, ["R" => $this->ShadowR,"G" => $this->ShadowG,"B" => $this->ShadowB,"Alpha" => $this->Shadowa,"NoBorder" => TRUE]);
}
$FillColor = $this->allocateColor($R, $G, $B, $Alpha);
if (count($Points) >= 6) {
ImageFilledPolygon($this->Picture, $Points, count($Points) / 2, $FillColor);
}
}
if (!$NoBorder) {
$Points = $Backup;
if ($NoFill) {
$BorderSettings = ["R" => $R,"G" => $G,"B" => $B,"Alpha" => $Alpha];
} else {
$BorderSettings = ["R" => $BorderR,"G" => $BorderG,"B" => $BorderB,"Alpha" => $BorderAlpha];
}
for ($i = 0; $i <= count($Points) - 1; $i = $i + 2) {
if (isset($Points[$i + 2])) {
if (!($Points[$i] == $Points[$i + 2] && $Points[$i] == $SkipX) && !($Points[$i + 1] == $Points[$i + 3] && $Points[$i + 1] == $SkipY)){
$this->drawLine($Points[$i], $Points[$i + 1], $Points[$i + 2], $Points[$i + 3], $BorderSettings);
}
} else {
if (!($Points[$i] == $Points[0] && $Points[$i] == $SkipX) && !($Points[$i + 1] == $Points[1] && $Points[$i + 1] == $SkipY)) {
$this->drawLine($Points[$i], $Points[$i + 1], $Points[0], $Points[1], $BorderSettings); # TODO Fix the bug here
}
}
}
}
$this->Shadow = $RestoreShadow;
}
/* Apply AALias correction to the rounded box boundaries */
function offsetCorrection($Value, $Mode) # UNUSED
{
$Value = round($Value, 1);
if ($Value == 0 && $Mode == 1) {
$ret = .9;
} elseif ($Value == 0) {
$ret = 0;
} else {
$matrix = [
1 => [1 => .9,.1 => .9,.2 => .8,.3 => .8,.4 => .7,.5 => .5,.6 => .8,.7 => .7,.8 => .6,.9 => .9],
2 => [1 => .9,.1 => .1,.2 => .2,.3 => .3,.4 => .4,.5 => .5,.6 => .8,.7 => .7,.8 => .8,.9 => .9],
3 => [1 => .9,.1 => .1,.2 => .2,.3 => .3,.4 => .4,.5 => .9,.6 => .6,.7 => .7,.8 => .4,.9 => .5],
4 => [1 => -1,.1 => .1,.2 => .2,.3 => .3,.4 => .1,.5 => -.1,.6 => .8,.7 => .1,.8 => .1,.9 => .1]
];
$ret = $matrix[$Mode][$Value];
}
return $ret;
}
/* Draw a rectangle with rounded corners */
function drawRoundedRectangle($X1, $Y1, $X2, $Y2, $Radius, array $Format = [])
{
$R = isset($Format["R"]) ? $Format["R"] : 0;
$G = isset($Format["G"]) ? $Format["G"] : 0;
$B = isset($Format["B"]) ? $Format["B"] : 0;
$Alpha = isset($Format["Alpha"]) ? $Format["Alpha"] : 100;
list($X1, $Y1, $X2, $Y2) = $this->fixBoxCoordinates($X1, $Y1, $X2, $Y2);
($X2 - $X1 < $Radius) AND $Radius = floor(($X2 - $X1) / 2);
($Y2 - $Y1 < $Radius) AND $Radius = floor(($Y2 - $Y1) / 2);
$Color = ["R" => $R,"G" => $G,"B" => $B,"Alpha" => $Alpha,"NoBorder" => TRUE];
if ($Radius <= 0) {
$this->drawRectangle($X1, $Y1, $X2, $Y2, $Color);
return;
}
if ($this->Antialias) {
$this->drawLine($X1 + $Radius, $Y1, $X2 - $Radius, $Y1, $Color);
$this->drawLine($X2, $Y1 + $Radius, $X2, $Y2 - $Radius, $Color);
$this->drawLine($X2 - $Radius, $Y2, $X1 + $Radius, $Y2, $Color);
$this->drawLine($X1, $Y1 + $Radius, $X1, $Y2 - $Radius, $Color);
} else {
$ColorA = $this->allocateColor($R, $G, $B, $Alpha);
imageline($this->Picture, $X1 + $Radius, $Y1, $X2 - $Radius, $Y1, $ColorA);
imageline($this->Picture, $X2, $Y1 + $Radius, $X2, $Y2 - $Radius, $ColorA);
imageline($this->Picture, $X2 - $Radius, $Y2, $X1 + $Radius, $Y2, $ColorA);
imageline($this->Picture, $X1, $Y1 + $Radius, $X1, $Y2 - $Radius, $ColorA);
}
$Step = 360 / (2 * PI * $Radius);
unset($Color["NoBorder"]);
for ($i = 0; $i <= 90; $i = $i + $Step) {
$X = cos(($i + 180) * PI / 180) * $Radius + $X1 + $Radius;
$Y = sin(($i + 180) * PI / 180) * $Radius + $Y1 + $Radius;
$this->drawAntialiasPixel($X, $Y, $Color);
$X = cos(($i + 90) * PI / 180) * $Radius + $X1 + $Radius;
$Y = sin(($i + 90) * PI / 180) * $Radius + $Y2 - $Radius;
$this->drawAntialiasPixel($X, $Y, $Color);
$X = cos($i * PI / 180) * $Radius + $X2 - $Radius;
$Y = sin($i * PI / 180) * $Radius + $Y2 - $Radius;
$this->drawAntialiasPixel($X, $Y, $Color);
$X = cos(($i + 270) * PI / 180) * $Radius + $X2 - $Radius;
$Y = sin(($i + 270) * PI / 180) * $Radius + $Y1 + $Radius;
$this->drawAntialiasPixel($X, $Y, $Color);
}
}
/* Draw a rectangle with rounded corners */
function drawRoundedFilledRectangle($X1, $Y1, $X2, $Y2, $Radius, array $Format = [])
{
$R = 0;
$G = 0;
$B = 0;
$Alpha = 100;
$Surrounding = NULL;
$BorderR = -1;
$BorderG = -1;
$BorderB = -1;
extract($Format);
/* Temporary fix for AA issue */
$Y1 = floor($Y1);
$Y2 = floor($Y2);
$X1 = floor($X1);
$X2 = floor($X2);
if ($Surrounding != NULL) {
$BorderR = $R + $Surrounding;
$BorderG = $G + $Surrounding;
$BorderB = $B + $Surrounding;
}
if ($BorderR == - 1) {
$BorderR = $R;
$BorderG = $G;
$BorderB = $B;
}
list($X1, $Y1, $X2, $Y2) = $this->fixBoxCoordinates($X1, $Y1, $X2, $Y2);
if ($X2 - $X1 < $Radius * 2) {
$Radius = floor((($X2 - $X1)) / 4);
}
if ($Y2 - $Y1 < $Radius * 2) {
$Radius = floor((($Y2 - $Y1)) / 4);
}
$RestoreShadow = $this->Shadow;
if ($this->Shadow) {
$this->Shadow = FALSE;
$this->drawRoundedFilledRectangle($X1 + $this->ShadowX, $Y1 + $this->ShadowY, $X2 + $this->ShadowX, $Y2 + $this->ShadowY, $Radius, ["R" => $this->ShadowR,"G" => $this->ShadowG,"B" => $this->ShadowB,"Alpha" => $this->Shadowa]);
}
$Color = ["R" => $R,"G" => $G,"B" => $B,"Alpha" => $Alpha,"NoBorder" => TRUE];
if ($Radius <= 0) {
$this->drawFilledRectangle($X1, $Y1, $X2, $Y2, $Color);
return;
}
$YTop = $Y1 + $Radius;
$YBottom = $Y2 - $Radius;
$Step = 360 / (2 * PI * $Radius);
$Positions = [];
$Radius--;
$MinY = 0;
$MaxY = 0;
for ($i = 0; $i <= 90; $i = $i + $Step) {
$Xp1 = cos(($i + 180) * PI / 180) * $Radius + $X1 + $Radius;
$Xp2 = cos(((90 - $i) + 270) * PI / 180) * $Radius + $X2 - $Radius;
$Yp = floor(sin(($i + 180) * PI / 180) * $Radius + $YTop);
($MinY == 0 || $Yp > $MinY) AND $MinY = $Yp;
($Xp1 <= floor($X1)) AND $Xp1++;
($Xp2 >= floor($X2)) AND $Xp2--;
$Xp1++;
if (!isset($Positions[$Yp])) {
$Positions[$Yp]["X1"] = $Xp1;
$Positions[$Yp]["X2"] = $Xp2;
} else {
$Positions[$Yp]["X1"] = ($Positions[$Yp]["X1"] + $Xp1) / 2;
$Positions[$Yp]["X2"] = ($Positions[$Yp]["X2"] + $Xp2) / 2;
}
$Xp1 = cos(($i + 90) * PI / 180) * $Radius + $X1 + $Radius;
$Xp2 = cos((90 - $i) * PI / 180) * $Radius + $X2 - $Radius;
$Yp = floor(sin(($i + 90) * PI / 180) * $Radius + $YBottom);
($MaxY == 0 || $Yp < $MaxY) AND $MaxY = $Yp;
($Xp1 <= floor($X1)) AND $Xp1++;
($Xp2 >= floor($X2)) AND $Xp2--;
$Xp1++;
if (!isset($Positions[$Yp])) {
$Positions[$Yp]["X1"] = $Xp1;
$Positions[$Yp]["X2"] = $Xp2;
} else {
$Positions[$Yp]["X1"] = ($Positions[$Yp]["X1"] + $Xp1) / 2;
$Positions[$Yp]["X2"] = ($Positions[$Yp]["X2"] + $Xp2) / 2;
}
}
$ManualColor = $this->allocateColor($R, $G, $B, $Alpha);
foreach($Positions as $Yp => $Bounds) {
$X1 = $Bounds["X1"];
$X1Dec = $this->getFirstDecimal($X1);
if ($X1Dec != 0) {
$X1 = floor($X1) + 1;
}
$X2 = $Bounds["X2"];
$X2Dec = $this->getFirstDecimal($X2);
if ($X2Dec != 0) {
$X2 = floor($X2) - 1;
}
imageline($this->Picture, $X1, $Yp, $X2, $Yp, $ManualColor);
}
$this->drawFilledRectangle($X1, $MinY + 1, floor($X2), $MaxY - 1, $Color);
$Radius++;
$this->drawRoundedRectangle($X1, $Y1, $X2 + 1, $Y2 - 1, $Radius, ["R" => $BorderR,"G" => $BorderG,"B" => $BorderB,"Alpha" => $Alpha]);
$this->Shadow = $RestoreShadow;
}
/* Draw a rectangle */
function drawRectangle($X1, $Y1, $X2, $Y2, array $Format = [])
{
$R = isset($Format["R"]) ? $Format["R"] : 0;
$G = isset($Format["G"]) ? $Format["G"] : 0;
$B = isset($Format["B"]) ? $Format["B"] : 0;
$Alpha = isset($Format["Alpha"]) ? $Format["Alpha"] : 100;
$Ticks = isset($Format["Ticks"]) ? $Format["Ticks"] : NULL;
$NoAngle = isset($Format["NoAngle"]) ? $Format["NoAngle"] : FALSE;
($X1 > $X2) AND list($X1, $X2) = [$X2,$X1];
($Y1 > $Y2) AND list($Y1, $Y2) = [$Y2,$Y1];
$RGB = ["R" => $R, "G" => $G, "B" => $B, "Alpha" => $Alpha, "Ticks" => $Ticks];
if ($this->Antialias) {
if ($NoAngle) {
$this->drawLine($X1 + 1, $Y1, $X2 - 1, $Y1, $RGB);
$this->drawLine($X2, $Y1 + 1, $X2, $Y2 - 1, $RGB);
$this->drawLine($X2 - 1, $Y2, $X1 + 1, $Y2, $RGB);
$this->drawLine($X1, $Y1 + 1, $X1, $Y2 - 1, $RGB);
} else {
$this->drawLine($X1 + 1, $Y1, $X2 - 1, $Y1, $RGB);
$this->drawLine($X2, $Y1, $X2, $Y2, $RGB);
$this->drawLine($X2 - 1, $Y2, $X1 + 1, $Y2, $RGB);
$this->drawLine($X1, $Y1, $X1, $Y2, $RGB);
}
} else {
imagerectangle($this->Picture, $X1, $Y1, $X2, $Y2, $this->allocateColor($R, $G, $B, $Alpha));
}
}
/* Draw a filled rectangle */
function drawFilledRectangle($X1, $Y1, $X2, $Y2, array $Format = [])
{
$R = isset($Format["R"]) ? $Format["R"] : 0;
$G = isset($Format["G"]) ? $Format["G"] : 0;
$B = isset($Format["B"]) ? $Format["B"] : 0;
$Alpha = isset($Format["Alpha"]) ? $Format["Alpha"] : 100;
$NoBorder = isset($Format["NoBorder"]) ? $Format["NoBorder"] : FALSE;
$Surrounding = isset($Format["Surrounding"]) ? $Format["Surrounding"] : NULL;
$Ticks = isset($Format["Ticks"]) ? $Format["Ticks"] : NULL;
$BorderR = isset($Format["BorderR"]) ? $Format["BorderR"] : -1;
$BorderG = isset($Format["BorderG"]) ? $Format["BorderG"] : -1;
$BorderB = isset($Format["BorderB"]) ? $Format["BorderB"] : -1;
$BorderAlpha = $Alpha;
$NoAngle = isset($Format["NoAngle"]) ? $Format["NoAngle"] : NULL;
$Dash = isset($Format["Dash"]) ? $Format["Dash"] : FALSE;
$DashStep = isset($Format["DashStep"]) ? $Format["DashStep"] : 4;
$DashR = isset($Format["DashR"]) ? $Format["DashR"] : 0;
$DashG = isset($Format["DashG"]) ? $Format["DashG"] : 0;
$DashB = isset($Format["DashB"]) ? $Format["DashB"] : 0;
if ($Surrounding != NULL) {
$BorderR = $R + $Surrounding;
$BorderG = $G + $Surrounding;
$BorderB = $B + $Surrounding;
}
($X1 > $X2) AND list($X1, $X2) = [$X2,$X1];
($Y1 > $Y2) AND list($Y1, $Y2) = [$Y2,$Y1];
$X1c = ceil($X1);
$Y1c = ceil($Y1);
$X2f = floor($X2);
$Y2f = floor($Y2);
$RestoreShadow = $this->Shadow;
if ($this->Shadow) {
$this->Shadow = FALSE;
$this->drawFilledRectangle($X1 + $this->ShadowX, $Y1 + $this->ShadowY, $X2 + $this->ShadowX, $Y2 + $this->ShadowY, ["R" => $this->ShadowR,"G" => $this->ShadowG,"B" => $this->ShadowB,"Alpha" => $this->Shadowa,"Ticks" => $Ticks,"NoAngle" => $NoAngle]);
}
$Color = $this->allocateColor($R, $G, $B, $Alpha);
if ($NoAngle) {
imagefilledrectangle($this->Picture, $X1c + 1, $Y1c, $X2f - 1, $Y2f, $Color);
imageline($this->Picture, $X1c, $Y1c + 1, $X1c, $Y2f - 1, $Color);
imageline($this->Picture, $X2f, $Y1c + 1, $X2f, $Y2f - 1, $Color);
} else {
imagefilledrectangle($this->Picture, $X1c, $Y1c, $X2f, $Y2f, $Color);
}
if ($Dash) {
if ($BorderR != - 1) {
$iX1 = $X1 + 1;
$iY1 = $Y1 + 1;
$iX2 = $X2 - 1;
$iY2 = $Y2 - 1;
} else {
$iX1 = $X1;
$iY1 = $Y1;
$iX2 = $X2;
$iY2 = $Y2;
}
$Color = $this->allocateColor($DashR, $DashG, $DashB, $Alpha);
$Y = $iY1 - $DashStep;
for ($X = $iX1; $X <= $iX2 + ($iY2 - $iY1); $X = $X + $DashStep) {
$Y = $Y + $DashStep;
if ($X > $iX2) {
$Xa = $X - ($X - $iX2);
$Ya = $iY1 + ($X - $iX2);
} else {
$Xa = $X;
$Ya = $iY1;
}
if ($Y > $iY2) {
$Xb = $iX1 + ($Y - $iY2);
$Yb = $Y - ($Y - $iY2);
} else {
$Xb = $iX1;
$Yb = $Y;
}
imageline($this->Picture, $Xa, $Ya, $Xb, $Yb, $Color);
}
}
if ($this->Antialias && !$NoBorder) {
if ($X1 < $X1c) {
$AlphaA = $Alpha * ($X1c - $X1);
$Color = $this->allocateColor($R, $G, $B, $AlphaA);
imageline($this->Picture, $X1c - 1, $Y1c, $X1c - 1, $Y2f, $Color);
}
if ($Y1 < $Y1c) {
$AlphaA = $Alpha * ($Y1c - $Y1);
$Color = $this->allocateColor($R, $G, $B, $AlphaA);
imageline($this->Picture, $X1c, $Y1c - 1, $X2f, $Y1c - 1, $Color);
}
if ($X2 > $X2f) {
$AlphaA = $Alpha * (.5 - ($X2 - $X2f));
$Color = $this->allocateColor($R, $G, $B, $AlphaA);
imageline($this->Picture, $X2f + 1, $Y1c, $X2f + 1, $Y2f, $Color);
}
if ($Y2 > $Y2f) {
$AlphaA = $Alpha * (.5 - ($Y2 - $Y2f));
$Color = $this->allocateColor($R, $G, $B, $AlphaA);
imageline($this->Picture, $X1c, $Y2f + 1, $X2f, $Y2f + 1, $Color);
}
}
if ($BorderR != - 1) {
$this->drawRectangle($X1, $Y1, $X2, $Y2, ["R" => $BorderR,"G" => $BorderG,"B" => $BorderB,"Alpha" => $BorderAlpha,"Ticks" => $Ticks,"NoAngle" => $NoAngle]);
}
$this->Shadow = $RestoreShadow;
}
/* Draw a rectangular marker of the specified size */
function drawRectangleMarker($X, $Y, array $Format = [])
{
$Size = isset($Format["Size"]) ? $Format["Size"] : 4;
$HalfSize = floor($Size / 2);
$this->drawFilledRectangle($X - $HalfSize, $Y - $HalfSize, $X + $HalfSize, $Y + $HalfSize, $Format);
}
/* Drawn a spline based on the bezier function */
function drawSpline(array $Coordinates, array $Format = []): array {
$PathOnly = isset($Format["PathOnly"]) ? $Format["PathOnly"] : FALSE;
$Force = isset($Format["Force"]) ? $Format["Force"] : 30;
$Forces = isset($Format["Forces"]) ? $Format["Forces"] : [];
$Result = [];
for ($i = 1; $i <= count($Coordinates) - 1; $i++) {
$X1 = $Coordinates[$i - 1][0];
$Y1 = $Coordinates[$i - 1][1];
$X2 = $Coordinates[$i][0];
$Y2 = $Coordinates[$i][1];
if (!empty($Forces)) { # Momchil: used in Scatter
$Force = $Forces[$i];
}
/* First segment */
if ($i == 1) {
$Xv1 = $X1;
$Yv1 = $Y1;
} else {
$Angle1 = $this->getAngle($XLast, $YLast, $X1, $Y1);
$Angle2 = $this->getAngle($X1, $Y1, $X2, $Y2);
$XOff = cos($Angle2 * PI / 180) * $Force + $X1;
$YOff = sin($Angle2 * PI / 180) * $Force + $Y1;
$Xv1 = cos($Angle1 * PI / 180) * $Force + $XOff;
$Yv1 = sin($Angle1 * PI / 180) * $Force + $YOff;
}
/* Last segment */
if ($i == count($Coordinates) - 1) {
$Xv2 = $X2;
$Yv2 = $Y2;
} else {
$Angle1 = $this->getAngle($X2, $Y2, $Coordinates[$i + 1][0], $Coordinates[$i + 1][1]);
$Angle2 = $this->getAngle($X1, $Y1, $X2, $Y2);
$XOff = cos(($Angle2 + 180) * PI / 180) * $Force + $X2;
$YOff = sin(($Angle2 + 180) * PI / 180) * $Force + $Y2;
$Xv2 = cos(($Angle1 + 180) * PI / 180) * $Force + $XOff;
$Yv2 = sin(($Angle1 + 180) * PI / 180) * $Force + $YOff;
}
$Path = $this->drawBezier($X1, $Y1, $X2, $Y2, $Xv1, $Yv1, $Xv2, $Yv2, $Format);
if ($PathOnly) {
$Result[] = $Path;
}
$XLast = $X1;
$YLast = $Y1;
}
return $Result;
}
/* Draw a bezier curve with two controls points */
function drawBezier($X1, $Y1, $X2, $Y2, $Xv1, $Yv1, $Xv2, $Yv2, array $Format = [])
{
$R = 0;
$G = 0;
$B = 0;
$Alpha = 100;
$Segments = NULL;
$Ticks = NULL;
$NoDraw = FALSE;
$PathOnly = FALSE;
$Weight = NULL;
$ShowControl = FALSE;
$DrawArrow = FALSE;
$ArrowSize = 10;
$ArrowRatio = .5;
$ArrowTwoHeads = FALSE;
extract($Format);
if ($Segments == NULL) {
$Length = sqrt(($X2 - $X1) * ($X2 - $X1) + ($Y2 - $Y1) * ($Y2 - $Y1));
$Precision = ($Length * 125) / 1000;
} else {
$Precision = $Segments;
}
$P = [
0 => ["X" => $X1, "Y" => $Y1],
1 => ["X" => $Xv1, "Y" => $Yv1],
2 => ["X" => $Xv2, "Y" => $Yv2],
3 => ["X" => $X2, "Y" => $Y2]
];
/* Compute the bezier points */
$Q = [];
$ID = 0;
for ($i = 0; $i <= $Precision; $i = $i + 1) {
$u = $i / $Precision;
$C = [
0 => (1 - $u) * (1 - $u) * (1 - $u),
1 => ($u * 3) * (1 - $u) * (1 - $u),
2 => 3 * $u * $u * (1 - $u),
3 => $u * $u * $u
];
for ($j = 0; $j <= 3; $j++) {
(!isset($Q[$ID])) AND $Q[$ID] = [];
(!isset($Q[$ID]["X"])) AND $Q[$ID]["X"] = 0;
(!isset($Q[$ID]["Y"])) AND $Q[$ID]["Y"] = 0;
$Q[$ID]["X"] = $Q[$ID]["X"] + $P[$j]["X"] * $C[$j];
$Q[$ID]["Y"] = $Q[$ID]["Y"] + $P[$j]["Y"] * $C[$j];
}
$ID++;
}
$Q[$ID]["X"] = $X2;
$Q[$ID]["Y"] = $Y2;
if ($NoDraw) {
return $Q;
}
/* Display the control points */
if ($ShowControl && !$PathOnly) {
$Xv1 = floor($Xv1);
$Yv1 = floor($Yv1);
$Xv2 = floor($Xv2);
$Yv2 = floor($Yv2);
$this->drawLine($X1, $Y1, $X2, $Y2, ["R" => 0,"G" => 0,"B" => 0,"Alpha" => 30]);
$this->drawRectangleMarker($Xv1, $Yv1, ["R" => 255,"G" => 0,"B" => 0,"BorderR" => 255,"BorderB" => 255,"BorderG" => 255,"Size" => 4]);
$this->drawText($Xv1 + 4, $Yv1, "v1");
$this->drawRectangleMarker($Xv2, $Yv2, ["R" => 0,"G" => 0,"B" => 255,"BorderR" => 255,"BorderB" => 255,"BorderG" => 255,"Size" => 4]);
$this->drawText($Xv2 + 4, $Yv2, "v2");
}
/* Draw the bezier */
$LastX = NULL;
$LastY = NULL;
$Cpt = NULL;
$Mode = NULL;
$ArrowS = [];
$ArrowE = [];
foreach($Q as $Point) {
$X = $Point["X"];
$Y = $Point["Y"];
/* Get the first segment */
if (empty($ArrowS) && $LastX != NULL && $LastY != NULL) {
$ArrowS = ["X2" => $LastX, "Y2" => $LastY, "X1" => $X, "Y1" => $Y];
}
if ($LastX != NULL && $LastY != NULL && !$PathOnly) {
list($Cpt, $Mode) = $this->drawLine($LastX, $LastY, $X, $Y, ["R" => $R,"G" => $G,"B" => $B,"Alpha" => $Alpha,"Ticks" => $Ticks,"Cpt" => $Cpt,"Mode" => $Mode,"Weight" => $Weight]);
}
/* Get the last segment */
$ArrowE = ["X1" => $LastX, "Y1" => $LastY, "X2" => $X, "Y2" => $Y];
$LastX = $X;
$LastY = $Y;
}
if ($DrawArrow && !$PathOnly) {
$ArrowSettings = ["FillR" => $R,"FillG" => $G,"FillB" => $B,"Alpha" => $Alpha,"Size" => $ArrowSize,"Ratio" => $ArrowRatio];
($ArrowTwoHeads) AND $this->drawArrow($ArrowS["X1"], $ArrowS["Y1"], $ArrowS["X2"], $ArrowS["Y2"], $ArrowSettings);
$this->drawArrow($ArrowE["X1"], $ArrowE["Y1"], $ArrowE["X2"], $ArrowE["Y2"], $ArrowSettings);
}
return $Q;
}
/* Draw a line between two points */
function drawLine($X1, $Y1, $X2, $Y2, array $Format = []) # FAST
{
$R = isset($Format["R"]) ? $Format["R"] : 0;
$G = isset($Format["G"]) ? $Format["G"] : 0;
$B = isset($Format["B"]) ? $Format["B"] : 0;
$Alpha = isset($Format["Alpha"]) ? $Format["Alpha"] : 100;
$Cpt = isset($Format["Cpt"]) ? $Format["Cpt"] : 1;
$Threshold = isset($Format["Threshold"]) ? $Format["Threshold"] : [];
$Ticks = isset($Format["Ticks"]) ? $Format["Ticks"] : NULL;
$Weight = isset($Format["Weight"]) ? $Format["Weight"] : NULL;
$Mode = isset($Format["Mode"]) ? $Format["Mode"] : 1;
if ($this->Antialias == FALSE && $Ticks == NULL) {
if ($this->Shadow) {
imageline($this->Picture, $X1 + $this->ShadowX, $Y1 + $this->ShadowY, $X2 + $this->ShadowX, $Y2 + $this->ShadowY, $this->ShadowColor);
}
$Color = $this->allocateColor($R, $G, $B, $Alpha);
imageline($this->Picture, $X1, $Y1, $X2, $Y2, $Color);
return;
}
$Distance = sqrt(($X2 - $X1) * ($X2 - $X1) + ($Y2 - $Y1) * ($Y2 - $Y1));
if ($Distance == 0) {
# throw pException::InvalidDimentions("Line coordinates are not valid!");
# Momchil: that one revealed way to many bugs to fix now
return;
}
$XStep = ($X2 - $X1) / $Distance;
$YStep = ($Y2 - $Y1) / $Distance;
/* Derivative algorithm for overweighted lines, re-route to polygons primitives */
if ($Weight != NULL) {
$Angle = $this->getAngle($X1, $Y1, $X2, $Y2);
$PolySettings = ["R" => $R,"G" => $G,"B" => $B,"Alpha" => $Alpha,"BorderAlpha" => $Alpha];
$AngleCosPlus90 = cos(deg2rad($Angle + 90)) * $Weight; // Momchil
$AngleCosMinus90 = cos(deg2rad($Angle - 90)) * $Weight;
$AngleSinPlus90 = sin(deg2rad($Angle + 90)) * $Weight; // Momchil
$AngleSinMinus90 = sin(deg2rad($Angle - 90)) * $Weight;
if ($Ticks == NULL) {
$Points = [$AngleCosMinus90 + $X1, $AngleSinMinus90 + $Y1, $AngleCosPlus90 + $X1, $AngleSinPlus90 + $Y1, $AngleCosPlus90 + $X2, $AngleSinPlus90 + $Y2, $AngleCosMinus90 + $X2, $AngleSinMinus90 + $Y2];
$this->drawPolygon($Points, $PolySettings);
} else {
for ($i = 0; $i <= $Distance; $i = $i + $Ticks * 2) {
$Xa = $XStep * $i + $X1;
$Ya = $YStep * $i + $Y1;
$Xb = $XStep * ($i + $Ticks) + $X1;
$Yb = $YStep * ($i + $Ticks) + $Y1;
$Points = [$AngleCosMinus90 + $Xa, $AngleSinMinus90 + $Ya, $AngleCosPlus90 + $Xa, $AngleSinPlus90 + $Ya, $AngleCosPlus90 + $Xb, $AngleSinPlus90 + $Yb, $AngleCosMinus90 + $Xb, $AngleSinMinus90 + $Yb];
$this->drawPolygon($Points, $PolySettings);
}
}
return;
}
$defaultColor = ["R" => $R,"G" => $G,"B" => $B,"Alpha" => $Alpha];
if (empty($Threshold) && $Ticks == NULL){ # Momchil: Fast path based on my test cases
for ($i = 0; $i <= $Distance; $i++) {
$this->drawAntialiasPixel($i * $XStep + $X1, $i * $YStep + $Y1, $defaultColor);
}
} else {
$Color = $defaultColor;
for ($i = 0; $i <= $Distance; $i++) {
$X = $i * $XStep + $X1;
$Y = $i * $YStep + $Y1;
foreach($Threshold as $Parameters) {
if ($Y <= $Parameters["MinX"] && $Y >= $Parameters["MaxX"]) {
$Color = [
(isset($Parameters["R"])) ? $Parameters["R"] : 0,
(isset($Parameters["G"])) ? $Parameters["G"] : 0,
(isset($Parameters["B"])) ? $Parameters["B"] : 0,
(isset($Parameters["Alpha"])) ? $Parameters["Alpha"] : 0
];
}
}
if ($Ticks != NULL) {
if ($Cpt % $Ticks == 0) {
$Cpt = 0;
$Mode = ($Mode == 1) ? 0 : 1;
}
($Mode == 1) AND $this->drawAntialiasPixel($X, $Y, $Color);
$Cpt++;
} else {
$this->drawAntialiasPixel($X, $Y, $Color);
}
}
}
}
/* Draw a circle */
function drawCircle($Xc, $Yc, $Height, $Width, array $Format = [])
{
$R = isset($Format["R"]) ? $Format["R"] : 0;
$G = isset($Format["G"]) ? $Format["G"] : 0;
$B = isset($Format["B"]) ? $Format["B"] : 0;
$Alpha = isset($Format["Alpha"]) ? $Format["Alpha"] : 100;
$Ticks = isset($Format["Ticks"]) ? $Format["Ticks"] : NULL;
$Height = abs($Height);
$Width = abs($Width);
($Height == 0) AND $Height = 1;
($Width == 0) AND $Width = 1;
$Xc = floor($Xc);
$Yc = floor($Yc);
$RestoreShadow = $this->Shadow;
if ($this->Shadow) {
$this->Shadow = FALSE;
$this->drawCircle($Xc + $this->ShadowX, $Yc + $this->ShadowY, $Height, $Width, ["R" => $this->ShadowR,"G" => $this->ShadowG,"B" => $this->ShadowB,"Alpha" => $this->Shadowa,"Ticks" => $Ticks]);
}
#($Width == 0) AND $Width = $Height; # UNUSED
$Step = 360 / (2 * PI * max($Width, $Height));
$Mode = TRUE;
$Cpt = 1;
for ($i = 0; $i <= 360; $i = $i + $Step) {
$X = cos($i * PI / 180) * $Height + $Xc;
$Y = sin($i * PI / 180) * $Width + $Yc;
if ($Ticks != NULL) {
if ($Cpt % $Ticks == 0) {
$Cpt = 0;
$Mode ^= 1; # invert
}
if ($Mode) {
$this->drawAntialiasPixel($X, $Y, ["R" => $R,"G" => $G,"B" => $B,"Alpha" => $Alpha]);
}
$Cpt++;
} else {
$this->drawAntialiasPixel($X, $Y, ["R" => $R,"G" => $G,"B" => $B,"Alpha" => $Alpha]);
}
}
$this->Shadow = $RestoreShadow;
}
/* Draw a filled circle */
function drawFilledCircle(int $X, int $Y, int $Radius, array $Format = [])
{
$R = 0;
$G = 0;
$B = 0;
$Alpha = isset($Format["Alpha"]) ? $Format["Alpha"] : 100;
$Surrounding = NULL;
$Ticks = NULL;
$BorderR = -1;
$BorderG = -1;
$BorderB = -1;
$BorderAlpha = $Alpha;
extract($Format);
if ($Surrounding != NULL) {
$BorderR = $R + $Surrounding;
$BorderG = $G + $Surrounding;
$BorderB = $B + $Surrounding;
}
$X = floor($X);
$Y = floor($Y);
($Radius == 0) AND $Radius = 1;
$Radius = abs($Radius);
$RestoreShadow = $this->Shadow;
if ($this->Shadow) {
$this->Shadow = FALSE;
$this->drawFilledCircle($X + $this->ShadowX, $Y + $this->ShadowY, $Radius, ["R" => $this->ShadowR,"G" => $this->ShadowG,"B" => $this->ShadowB,"Alpha" => $this->Shadowa,"Ticks" => $Ticks]);
}
$this->Mask = [];
$Color = $this->allocateColor($R, $G, $B, $Alpha);
for ($i = 0; $i <= $Radius * 2; $i++) {
$Slice = sqrt($Radius * $Radius - ($Radius - $i) * ($Radius - $i));
$XPos = floor($Slice);
$YPos = $Y + $i - $Radius;
#$AAlias = $Slice - floor($Slice); # Momchil: UNUSED
$this->Mask[$X - $XPos][$YPos] = TRUE;
$this->Mask[$X + $XPos][$YPos] = TRUE;
imageline($this->Picture, $X - $XPos, $YPos, $X + $XPos, $YPos, $Color);
}
if ($this->Antialias) {
$this->drawCircle($X, $Y, $Radius, $Radius, ["R" => $R,"G" => $G,"B" => $B,"Alpha" => $Alpha,"Ticks" => $Ticks]);
}
$this->Mask = [];
if ($BorderR != - 1) {
$this->drawCircle($X, $Y, $Radius, $Radius, ["R" => $BorderR,"G" => $BorderG,"B" => $BorderB,"Alpha" => $BorderAlpha,"Ticks" => $Ticks]);
}
$this->Shadow = $RestoreShadow;
}
/* Write text */
function drawText(int $X, int $Y, string $Text, array $Format = [])
{
$R = $this->FontColorR;
$G = $this->FontColorG;