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<?php |
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/** |
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* JPGraph v4.0.3 |
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*/ |
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namespace Amenadiel\JpGraph\Graph; |
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use Amenadiel\JpGraph\Text; |
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/** |
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* @class RadarAxis |
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* // Description: Implements axis for the radar graph |
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*/ |
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class RadarAxis extends AxisPrototype |
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{ |
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public $title; |
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private $title_color = 'navy'; |
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private $len = 0; |
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public function __construct($img, $aScale, $color = [0, 0, 0]) |
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{ |
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parent::__construct($img, $aScale, $color); |
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$this->len = $img->plotheight; |
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$this->title = new Text\Text(); |
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$this->title->SetFont(FF_FONT1, FS_BOLD); |
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$this->color = [0, 0, 0]; |
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} |
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// Stroke the axis |
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// $pos = Vertical position of axis |
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// $aAxisAngle = Axis angle |
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// $grid = Returns an array with positions used to draw the grid |
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// $lf = Label flag, TRUE if the axis should have labels |
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public function Stroke($pos, $aAxisAngle, &$grid, $title, $lf) |
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{ |
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$this->img->SetColor($this->color); |
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// Determine end points for the axis |
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$x = round($this->scale->world_abs_size * cos($aAxisAngle) + $this->scale->scale_abs[0]); |
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$y = round($pos - $this->scale->world_abs_size * sin($aAxisAngle)); |
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// Draw axis |
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$this->img->SetColor($this->color); |
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$this->img->SetLineWeight($this->weight); |
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if (!$this->hide) { |
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$this->img->Line($this->scale->scale_abs[0], $pos, $x, $y); |
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} |
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$this->scale->ticks->Stroke($this->img, $grid, $pos, $aAxisAngle, $this->scale, $majpos, $majlabel); |
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$ncolor = 0; |
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if (isset($this->ticks_label_colors)) { |
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$ncolor = safe_count($this->ticks_label_colors); |
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} |
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// Draw labels |
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if ($lf && !$this->hide) { |
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$this->img->SetFont($this->font_family, $this->font_style, $this->font_size); |
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$this->img->SetTextAlign('left', 'top'); |
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$this->img->SetColor($this->label_color); |
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// majpos contains (x,y) coordinates for labels |
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if (!$this->hide_labels) { |
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$n = floor(safe_count($majpos) / 2); |
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for ($i = 0; $i < $n; ++$i) { |
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// Set specific label color if specified |
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if ($ncolor > 0) { |
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$this->img->SetColor($this->ticks_label_colors[$i % $ncolor]); |
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} |
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if ($this->ticks_label != null && isset($this->ticks_label[$i])) { |
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$this->img->StrokeText($majpos[$i * 2], $majpos[$i * 2 + 1], $this->ticks_label[$i]); |
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} else { |
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$this->img->StrokeText($majpos[$i * 2], $majpos[$i * 2 + 1], $majlabel[$i]); |
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} |
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} |
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} |
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} |
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$this->_StrokeAxisTitle($pos, $aAxisAngle, $title); |
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} |
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public function _StrokeAxisTitle($pos, $aAxisAngle, $title) |
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{ |
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$this->title->Set($title); |
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$marg = 6 + $this->title->margin; |
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$xt = round(($this->scale->world_abs_size + $marg) * cos($aAxisAngle) + $this->scale->scale_abs[0]); |
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$yt = round($pos - ($this->scale->world_abs_size + $marg) * sin($aAxisAngle)); |
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// Position the axis title. |
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// dx, dy is the offset from the top left corner of the bounding box that sorrounds the text |
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// that intersects with the extension of the corresponding axis. The code looks a little |
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// bit messy but this is really the only way of having a reasonable position of the |
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// axis titles. |
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if ($this->title->iWordwrap > 0) { |
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$title = wordwrap($title, $this->title->iWordwrap, "\n"); |
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} |
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$h = $this->img->GetTextHeight($title) * 1.2; |
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$w = $this->img->GetTextWidth($title) * 1.2; |
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while ($aAxisAngle > 2 * M_PI) { |
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$aAxisAngle -= 2 * M_PI; |
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} |
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// Around 3 a'clock |
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if ($aAxisAngle >= 7 * M_PI / 4 || $aAxisAngle <= M_PI / 4) { |
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$dx = -0.15; |
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} |
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// Small trimming to make the dist to the axis more even |
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// Around 12 a'clock |
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if ($aAxisAngle >= M_PI / 4 && $aAxisAngle <= 3 * M_PI / 4) { |
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$dx = ($aAxisAngle - M_PI / 4) * 2 / M_PI; |
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} |
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// Around 9 a'clock |
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if ($aAxisAngle >= 3 * M_PI / 4 && $aAxisAngle <= 5 * M_PI / 4) { |
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$dx = 1; |
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} |
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// Around 6 a'clock |
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if ($aAxisAngle >= 5 * M_PI / 4 && $aAxisAngle <= 7 * M_PI / 4) { |
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$dx = (1 - ($aAxisAngle - M_PI * 5 / 4) * 2 / M_PI); |
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} |
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if ($aAxisAngle >= 7 * M_PI / 4) { |
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$dy = (($aAxisAngle - M_PI) - 3 * M_PI / 4) * 2 / M_PI; |
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} |
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if ($aAxisAngle <= M_PI / 12) { |
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$dy = (0.5 - $aAxisAngle * 2 / M_PI); |
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} |
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if ($aAxisAngle <= M_PI / 4 && $aAxisAngle > M_PI / 12) { |
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$dy = (1 - $aAxisAngle * 2 / M_PI); |
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} |
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if ($aAxisAngle >= M_PI / 4 && $aAxisAngle <= 3 * M_PI / 4) { |
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$dy = 1; |
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} |
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if ($aAxisAngle >= 3 * M_PI / 4 && $aAxisAngle <= 5 * M_PI / 4) { |
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$dy = (1 - ($aAxisAngle - 3 * M_PI / 4) * 2 / M_PI); |
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} |
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if ($aAxisAngle >= 5 * M_PI / 4 && $aAxisAngle <= 7 * M_PI / 4) { |
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$dy = 0; |
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} |
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if (!$this->hide) { |
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$this->title->Stroke($this->img, $xt - $dx * $w, $yt - $dy * $h, $title); |
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} |
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} |
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} // @class |
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HuasoFoundries /
jpgraph
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