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<?php |
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/** |
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* Copyright (C) 2021-2022 Graham Breach |
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* |
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* This program is free software: you can redistribute it and/or modify |
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* it under the terms of the GNU Lesser General Public License as published by |
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* the Free Software Foundation, either version 3 of the License, or |
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* (at your option) any later version. |
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* |
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* This program is distributed in the hope that it will be useful, |
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* but WITHOUT ANY WARRANTY; without even the implied warranty of |
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
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* GNU Lesser General Public License for more details. |
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* |
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* You should have received a copy of the GNU Lesser General Public License |
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* along with this program. If not, see <http://www.gnu.org/licenses/>. |
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*/ |
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/** |
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* For more information, please contact <graham@goat1000.com> |
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*/ |
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|
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namespace Goat1000\SVGGraph; |
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|
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class Donut3DGraph extends Pie3DGraph { |
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|
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use DonutGraphTrait; |
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protected $edge_class = 'Goat1000\\SVGGraph\\DonutSliceEdge'; |
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|
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public function __construct($w, $h, array $settings, array $fixed_settings = []) |
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{ |
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$fs = []; |
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// enable flat sides when drawing a gap |
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if(isset($settings['donut_slice_gap']) && $settings['donut_slice_gap'] > 0) |
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$fs['draw_flat_sides'] = true; |
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|
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$fs = array_merge($fs, $fixed_settings); |
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parent::__construct($w, $h, $settings, $fs); |
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} |
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|
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/** |
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* Returns the gradient overlay |
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*/ |
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protected function getEdgeOverlay($x_centre, $y_centre, $depth, $clip_path, $edge) |
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{ |
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if(!$edge->inner()) |
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return parent::getEdgeOverlay($x_centre, $y_centre, $depth, $clip_path, $edge); |
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|
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// use radius of whole pie unless slice values are set |
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$radius_x = $this->radius_x; |
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$radius_y = $this->radius_y; |
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if($edge->slice['radius_x'] && $edge->slice['radius_y']) { |
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$radius_x = $edge->slice['radius_x']; |
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$radius_y = $edge->slice['radius_y']; |
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} |
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|
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$ratio = $edge->getInnerRatio(); |
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$radius_x *= $ratio; |
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$radius_y *= $ratio; |
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|
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// clip a gradient-filled rect to the edge shape |
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$cx = new Number($x_centre); |
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$cy = new Number($y_centre); |
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$gradient_id = $this->defs->addGradient($this->getOption('depth_shade_gradient')); |
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$rect = [ |
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'x' => $x_centre - $radius_x, |
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'y' => $y_centre - $radius_y, |
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'width' => $radius_x * 2.0, |
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'height' => $radius_y * 2.0 + $this->depth + 2.0, |
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'fill' => 'url(#' . $gradient_id . ')', |
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|
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// rotate the rect to reverse the gradient |
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'transform' => "rotate(180,{$cx},{$cy})", |
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]; |
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|
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// clip a group containing the rotated rect |
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$g = [ 'clip-path' => 'url(#' . $clip_path . ')' ]; |
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return $this->element('g', $g, null, $this->element('rect', $rect)); |
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} |
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} |
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