Amenadiel\JpGraph\Plot\PiePlot::Stroke()

Complexity

Conditions	51
Paths	> 20000

Size

Total Lines	262
Code Lines	133

Duplication

Lines	0
Ratio	0 %

Importance

Changes

0

<?php
    public function Stroke($img, $aaoption = 0)
    {
        // aaoption is used to handle antialias
        // aaoption == 0 a normal pie
        // aaoption == 1 just the body
        // aaoption == 2 just the values

        // Explode scaling. If anti alias we scale the image
        // twice and we also need to scale the exploding distance
        $expscale = $aaoption === 1 ? 2 : 1;

        if ($this->labeltype == 2) {
            // Adjust the data so that it will add up to 100%
            $this->adjusted_data = $this->AdjPercentage($this->data);
        }

        if ($this->use_plot_theme_colors) {
            $this->setslicecolors = null;
        }

        $colors = array_keys($img->rgb->rgb_table);
        sort($colors);
        $ta = $this->themearr[$this->theme];
        $n  = safe_count($this->data);

        if ($this->setslicecolors == null) {
            $numcolors = safe_count($ta);
        } else {
            // We need to create an array of colors as long as the data
            // since we need to reverse it to get the colors in the right order
            $numcolors = safe_count($this->setslicecolors);
            $i         = 2 * $numcolors;
            while ($n > $i) {
                $this->setslicecolors = array_merge($this->setslicecolors, $this->setslicecolors);
                $i += $n;
            }
            $tt                   = array_slice($this->setslicecolors, 0, $n % $numcolors);
            $this->setslicecolors = array_merge($this->setslicecolors, $tt);
            $this->setslicecolors = array_reverse($this->setslicecolors);
        }

        // Draw the slices
        $sum = 0;
        for ($i = 0; $i < $n; ++$i) {
            $sum += $this->data[$i];
        }

        // Bail out with error if the sum is 0
        if ($sum == 0) {

The condition $sum == 0 is always true.

            Util\JpGraphError::RaiseL(15009); //("Sum of all data is 0 for Pie.");
        }

        // Set up the pie-circle
        if ($this->radius <= 1) {
            $radius = floor($this->radius * min($img->width, $img->height));
        } else {
            $radius = $aaoption === 1 ? $this->radius * 2 : $this->radius;
        }

        if ($this->posx <= 1 && $this->posx > 0) {
            $xc = round($this->posx * $img->width);
        } else {
            $xc = $this->posx;
        }

        if ($this->posy <= 1 && $this->posy > 0) {
            $yc = round($this->posy * $img->height);
        } else {
            $yc = $this->posy;
        }

        $n = safe_count($this->data);

        if ($this->explode_all) {
            for ($i = 0; $i < $n; ++$i) {
                $this->explode_radius[$i] = $this->explode_r;
            }
        }

        // If we have a shadow and not just drawing the labels
        if ($this->ishadowcolor != '' && $aaoption !== 2) {
            $accsum = 0;
            $angle2 = $this->startangle;
            $img->SetColor($this->ishadowcolor);
            for ($i = 0; $sum > 0 && $i < $n; ++$i) {
                $j      = $n - $i - 1;
                $d      = $this->data[$i];
                $angle1 = $angle2;
                $accsum += $d;
                $angle2 = $this->startangle + 2 * M_PI * $accsum / $sum;
                if (empty($this->explode_radius[$j])) {
                    $this->explode_radius[$j] = 0;
                }

                if ($d < 0.00001) {
                    continue;
                }

                $la = 2 * M_PI - (abs($angle2 - $angle1) / 2.0 + $angle1);

                $xcm = $xc + $this->explode_radius[$j] * cos($la) * $expscale;
                $ycm = $yc - $this->explode_radius[$j] * sin($la) * $expscale;

                $xcm += $this->ishadowdrop * $expscale;
                $ycm += $this->ishadowdrop * $expscale;

                $_sa = round($angle1 * 180 / M_PI);
                $_ea = round($angle2 * 180 / M_PI);

                // The CakeSlice method draws a full circle in case of start angle = end angle
                // for pie slices we don't want this behaviour unless we only have one
                // slice in the pie in case it is the wanted behaviour
                if ($_ea - $_sa > 0.1 || $n == 1) {
                    $img->CakeSlice(
                        $xcm,
                        $ycm,
                        $radius - 1,
                        $radius - 1,
                        $angle1 * 180 / M_PI,
                        $angle2 * 180 / M_PI,
                        $this->ishadowcolor
                    );
                }
            }
        }

        /**
         * This is the main loop to draw each cake slice.
         */
        // Set up the accumulated sum, start angle for first slice and border color
        $accsum = 0;
        $angle2 = $this->startangle;
        $img->SetColor($this->color);

        // Loop though all the slices if there is a pie to draw (sum>0)
        // There are n slices in total
        for ($i = 0; $sum > 0 && $i < $n; ++$i) {
            // $j is the actual index used for the slice
            $j = $n - $i - 1;

            // Make sure we havea  valid distance to explode the slice
            if (empty($this->explode_radius[$j])) {
                $this->explode_radius[$j] = 0;
            }

            // The actual numeric value for the slice
            $d = $this->data[$i];

            $angle1 = $angle2;

            // Accumlate the sum
            $accsum += $d;

            // The new angle when we add the "size" of this slice
            // angle1 is then the start and angle2 the end of this slice
            $angle2 = $this->NormAngle($this->startangle + 2 * M_PI * $accsum / $sum);

            // We avoid some trouble by not allowing end angle to be 0, in that case
            // we translate to 360

            // la is used to hold the label angle, which is centered on the slice
            if ($angle2 < 0.0001 && $angle1 > 0.0001) {
                $this->la[$i] = 2 * M_PI - (abs(2 * M_PI - $angle1) / 2.0 + $angle1);
            } elseif ($angle1 > $angle2) {
                // The case where the slice crosses the 3 a'clock line
                // Remember that the slices are counted clockwise and
                // labels are counted counter clockwise so we need to revert with 2 PI
                $this->la[$i] = 2 * M_PI - $this->NormAngle($angle1 + ((2 * M_PI - $angle1) + $angle2) / 2);
            } else {
                $this->la[$i] = 2 * M_PI - (abs($angle2 - $angle1) / 2.0 + $angle1);
            }

            // Too avoid rounding problems we skip the slice if it is too small
            if ($d < 0.00001) {
                continue;
            }

            // If the user has specified an array of colors for each slice then use
            // that a color otherwise use the theme array (ta) of colors
            if ($this->setslicecolors == null) {
                $slicecolor = $colors[$ta[$i % $numcolors]];
            } else {
                $slicecolor = $this->setslicecolors[$i % $numcolors];
            }

            //            $_sa = round($angle1*180/M_PI);
            //            $_ea = round($angle2*180/M_PI);
            //            $_la = round($this->la[$i]*180/M_PI);
            //            echo "Slice#$i: ang1=$_sa , ang2=$_ea, la=$_la, color=$slicecolor<br>";

            // If we have enabled antialias then we don't draw any border so
            // make the bordedr color the same as the slice color
            if ($this->pie_interior_border && $aaoption === 0) {
                $img->SetColor($this->color);
            } else {
                $img->SetColor($slicecolor);
            }
            $arccolor = $this->pie_border && $aaoption === 0 ? $this->color : '';

            // Calculate the x,y coordinates for the base of this slice taking
            // the exploded distance into account. Here we use the mid angle as the
            // ray of extension and we have the mid angle handy as it is also the
            // label angle
            $xcm = $xc + $this->explode_radius[$j] * cos($this->la[$i]) * $expscale;
            $ycm = $yc - $this->explode_radius[$j] * sin($this->la[$i]) * $expscale;

            // If we are not just drawing the labels then draw this cake slice
            if ($aaoption !== 2) {
                $_sa = round($angle1 * 180 / M_PI);
                $_ea = round($angle2 * 180 / M_PI);
                $_la = round($this->la[$i] * 180 / M_PI);

The assignment to $_la is dead and can be removed.

                //echo "[$i] sa=$_sa, ea=$_ea, la[$i]=$_la, (color=$slicecolor)<br>";

                // The CakeSlice method draws a full circle in case of start angle = end angle
                // for pie slices we want this in case the slice have a value larger than 99% of the
                // total sum
                if (abs($_ea - $_sa) >= 1 || $d == $sum) {
                    $img->CakeSlice($xcm, $ycm, $radius - 1, $radius - 1, $_sa, $_ea, $slicecolor, $arccolor);
                }
            }

            // If the CSIM is used then make sure we register a CSIM area for this slice as well
            if ($this->csimtargets && $aaoption !== 1) {
                $this->AddSliceToCSIM($i, $xcm, $ycm, $radius, $angle1, $angle2);
            }
        }

        // Format the titles for each slice
        if ($aaoption !== 2) {
            for ($i = 0; $i < $n; ++$i) {
                if ($this->labeltype == 0) {
                    if ($sum != 0) {
                        $l = 100.0 * $this->data[$i] / $sum;
                    } else {
                        $l = 0.0;
                    }
                } elseif ($this->labeltype == 1) {
                    $l = $this->data[$i] * 1.0;
                } else {
                    $l = $this->adjusted_data[$i];
                }
                if (isset($this->labels[$i]) && is_string($this->labels[$i])) {
                    $this->labels[$i] = sprintf($this->labels[$i], $l);
                } else {
                    $this->labels[$i] = $l;
                }
            }
        }

        if ($this->value->show && $aaoption !== 1) {
            $this->StrokeAllLabels($img, $xc, $yc, $radius);
        }

        // Adjust title position
        if ($aaoption !== 1) {
            $this->title->SetPos(
                $xc,
                $yc - $this->title->GetFontHeight($img) - $radius - $this->title->margin,
                'center',
                'bottom'
            );
            $this->title->Stroke($img);
        }