Amenadiel\JpGraph\Graph\LinearTicks::_doAutoTickPos()

Complexity

Conditions	15
Paths	18

Size

Total Lines	78
Code Lines	49

Duplication

Lines	0
Ratio	0 %

Code Coverage

Tests	48
CRAP Score	15.0019

Importance

Changes	1
Bugs	0	Features	0

<?php
    public function _doAutoTickPos($aScale)
    {
        $maj_step_abs = $aScale->scale_factor * $this->major_step;
        $min_step_abs = $aScale->scale_factor * $this->minor_step;

        if ($min_step_abs == 0 || $maj_step_abs == 0) {
            Util\JpGraphError::RaiseL(25068); //("A plot has an illegal scale. This could for example be that you are trying to use text autoscaling to draw a line plot with only one point or that the plot area is too small. It could also be that no input data value is numeric (perhaps only '-' or 'x')");
        }
        // We need to make this an int since comparing it below
        // with the result from round() can give wrong result, such that
        // (40 < 40) == TRUE !!!
        $limit = (int) $aScale->scale_abs[1];

        if ($aScale->textscale) {
            // This can only be true for a X-scale (horizontal)
            // Define ticks for a text scale. This is slightly different from a
            // normal linear type of scale since the position might be adjusted
            // and the labels start at on
            $label       = (float) $aScale->GetMinVal() + $this->text_label_start + $this->label_offset;
            $start_abs   = $aScale->scale_factor * $this->text_label_start;
            $nbrmajticks = round(($aScale->GetMaxVal() - $aScale->GetMinVal() - $this->text_label_start) / $this->major_step) + 1;

            $x = $aScale->scale_abs[0] + $start_abs + $this->xlabel_offset * $min_step_abs;
            for ($i = 0; $label <= $aScale->GetMaxVal() + $this->label_offset; ++$i) {
                // Apply format to label
                $this->maj_ticks_label[$i] = $this->_doLabelFormat($label, $i, $nbrmajticks);
                $label += $this->major_step;

                // The x-position of the tick marks can be different from the labels.
                // Note that we record the tick position (not the label) so that the grid
                // happen upon tick marks and not labels.
                $xtick                        = $aScale->scale_abs[0] + $start_abs + $this->xtick_offset * $min_step_abs + $i * $maj_step_abs;
                $this->maj_ticks_pos[$i]      = $xtick;
                $this->maj_ticklabels_pos[$i] = round($x);
                $x += $maj_step_abs;
            }
        } else {
            $label   = $aScale->GetMinVal();
            $abs_pos = $aScale->scale_abs[0];
            $j       = 0;
            $i       = 0;
            $step    = round($maj_step_abs / $min_step_abs);
            if ($aScale->type == 'x') {
                // For a normal linear type of scale the major ticks will always be multiples
                // of the minor ticks. In order to avoid any rounding issues the major ticks are
                // defined as every "step" minor ticks and not calculated separately
                $nbrmajticks = round(($aScale->GetMaxVal() - $aScale->GetMinVal() - $this->text_label_start) / $this->major_step) + 1;
                while (round($abs_pos) <= $limit) {
                    $this->ticks_pos[]   = round($abs_pos);
                    $this->ticks_label[] = $label;
                    if ($step == 0 || $i % $step == 0 && $j < $nbrmajticks) {
                        $this->maj_ticks_pos[$j]      = round($abs_pos);
                        $this->maj_ticklabels_pos[$j] = round($abs_pos);
                        $this->maj_ticks_label[$j]    = $this->_doLabelFormat($label, $j, $nbrmajticks);
                        ++$j;
                    }
                    ++$i;
                    $abs_pos += $min_step_abs;
                    $label += $this->minor_step;
                }
            } elseif ($aScale->type == 'y') {
                //@todo  s=2:20,12  s=1:50,6  $this->major_step:$nbr
                // abs_point,limit s=1:270,80 s=2:540,160
                // $this->major_step = 50;
                $nbrmajticks = round(($aScale->GetMaxVal() - $aScale->GetMinVal()) / $this->major_step) + 1;
                //                $step = 5;
                while (round($abs_pos) >= $limit) {
                    $this->ticks_pos[$i]   = round($abs_pos);
                    $this->ticks_label[$i] = $label;
                    if ($step == 0 || $i % $step == 0 && $j < $nbrmajticks) {
                        $this->maj_ticks_pos[$j]      = round($abs_pos);
                        $this->maj_ticklabels_pos[$j] = round($abs_pos);
                        $this->maj_ticks_label[$j]    = $this->_doLabelFormat($label, $j, $nbrmajticks);
                        ++$j;
                    }
                    ++$i;
                    $abs_pos += $min_step_abs;
                    $label += $this->minor_step;
                }