/** * Render Axis labels * * Render labels for an axis. * * @param ezcGraphRenderer $renderer Renderer used to draw the chart * @param ezcGraphBoundings $boundings Boundings of the axis * @param ezcGraphCoordinate $start Axis starting point * @param ezcGraphCoordinate $end Axis ending point * @param ezcGraphChartElementAxis $axis Axis instance * @return void */ public function renderLabels(ezcGraphRenderer $renderer, ezcGraphBoundings $boundings, ezcGraphCoordinate $start, ezcGraphCoordinate $end, ezcGraphChartElementAxis $axis) { // receive rendering parameters from axis $steps = $axis->getSteps(); $this->steps = $steps; $axisBoundings = new ezcGraphBoundings($start->x, $start->y, $end->x, $end->y); // Determine normalized axis direction $this->direction = new ezcGraphVector($start->x - $end->x, $start->y - $end->y); $this->direction->unify(); if ($this->outerGrid) { $gridBoundings = $boundings; } else { $gridBoundings = new ezcGraphBoundings($boundings->x0 + $renderer->xAxisSpace * abs($this->direction->y), $boundings->y0 + $renderer->yAxisSpace * abs($this->direction->x), $boundings->x1 - $renderer->xAxisSpace * abs($this->direction->y), $boundings->y1 - $renderer->yAxisSpace * abs($this->direction->x)); } // Determine additional required axis space by boxes $firstStep = reset($steps); $lastStep = end($steps); $this->widthModifier = 1 + $firstStep->width / 2 + $lastStep->width / 2; // Draw steps and grid foreach ($steps as $nr => $step) { $position = new ezcGraphCoordinate($start->x + ($end->x - $start->x) * ($step->position + $step->width) / $this->widthModifier, $start->y + ($end->y - $start->y) * ($step->position + $step->width) / $this->widthModifier); $stepWidth = $step->width / $this->widthModifier; $stepSize = new ezcGraphCoordinate($axisBoundings->width * $stepWidth, $axisBoundings->height * $stepWidth); if ($this->showLabels) { // Calculate label boundings switch (true) { case abs($this->direction->x) > abs($this->direction->y) && $this->direction->x <= 0: $labelBoundings = new ezcGraphBoundings($position->x - $stepSize->x + $this->labelPadding, $position->y + $this->labelPadding, $position->x - $this->labelPadding, $position->y + $renderer->yAxisSpace - $this->labelPadding); $alignement = ezcGraph::CENTER | ezcGraph::TOP; break; case abs($this->direction->x) > abs($this->direction->y) && $this->direction->x > 0: $labelBoundings = new ezcGraphBoundings($position->x + $this->labelPadding, $position->y + $this->labelPadding, $position->x + $stepSize->x - $this->labelPadding, $position->y + $renderer->yAxisSpace - $this->labelPadding); $alignement = ezcGraph::CENTER | ezcGraph::TOP; break; case $this->direction->y <= 0: $labelBoundings = new ezcGraphBoundings($position->x - $renderer->xAxisSpace + $this->labelPadding, $position->y - $stepSize->y + $this->labelPadding, $position->x - $this->labelPadding, $position->y - $this->labelPadding); $alignement = ezcGraph::MIDDLE | ezcGraph::RIGHT; break; case $this->direction->y > 0: $labelBoundings = new ezcGraphBoundings($position->x - $renderer->xAxisSpace + $this->labelPadding, $position->y + $this->labelPadding, $position->x - $this->labelPadding, $position->y + $stepSize->y - $this->labelPadding); $alignement = ezcGraph::MIDDLE | ezcGraph::RIGHT; break; } $renderer->drawText($labelBoundings, $step->label, $alignement); } // major grid if ($axis->majorGrid) { $this->drawGrid($renderer, $gridBoundings, $position, $stepSize, $axis->majorGrid); } // major step $this->drawStep($renderer, $position, $this->direction, $axis->position, $this->majorStepSize, $axis->border); } }
/** * Render Axis labels * * Render labels for an axis. * * @param ezcGraphRenderer $renderer Renderer used to draw the chart * @param ezcGraphBoundings $boundings Boundings of the axis * @param ezcGraphCoordinate $start Axis starting point * @param ezcGraphCoordinate $end Axis ending point * @param ezcGraphChartElementAxis $axis Axis instance * @return void */ public function renderLabels(ezcGraphRenderer $renderer, ezcGraphBoundings $boundings, ezcGraphCoordinate $start, ezcGraphCoordinate $end, ezcGraphChartElementAxis $axis, ezcGraphBoundings $innerBoundings = null) { // receive rendering parameters from axis $this->steps = $steps = $axis->getSteps(); $axisBoundings = new ezcGraphBoundings($start->x, $start->y, $end->x, $end->y); // Determine normalized axis direction $this->direction = new ezcGraphVector($end->x - $start->x, $end->y - $start->y); $this->direction->unify(); // Get axis space $gridBoundings = null; list($xSpace, $ySpace) = $this->getAxisSpace($renderer, $boundings, $axis, $innerBoundings, $gridBoundings); // Determine optimal angle if none specified $this->determineAngle($steps, $xSpace, $ySpace, $axisBoundings); $degTextAngle = $this->determineTextOffset($axis, $steps); $labelLength = $this->calculateLabelLength($start, $end, $xSpace, $ySpace, $axisBoundings); // Determine additional required axis space by boxes $firstStep = reset($steps); $lastStep = end($steps); $this->widthModifier = 1 + $firstStep->width / 2 + $lastStep->width / 2; // Draw steps and grid foreach ($steps as $nr => $step) { $position = new ezcGraphCoordinate($start->x + ($end->x - $start->x) * ($step->position + $step->width) / $this->widthModifier, $start->y + ($end->y - $start->y) * ($step->position + $step->width) / $this->widthModifier); $stepWidth = $step->width / $this->widthModifier; $stepSize = new ezcGraphCoordinate($axisBoundings->width * $stepWidth, $axisBoundings->height * $stepWidth); // Calculate label boundings $labelSize = $this->calculateLabelSize($steps, $nr, $step, $xSpace, $ySpace, $axisBoundings); $lengthReducement = min(abs(tan(deg2rad($this->angle)) * ($labelSize / 2)), abs($labelLength / 2)); $this->renderLabelText($renderer, $axis, $position, $step->label, $degTextAngle, $labelLength, $labelSize, $lengthReducement); // Major grid if ($axis->majorGrid) { $this->drawGrid($renderer, $gridBoundings, $position, $stepSize, $axis->majorGrid); } // Major step $this->drawStep($renderer, $position, $this->direction, $axis->position, $this->majorStepSize, $axis->border); } }
/** * Render Axis labels * * Render labels for an axis. * * @param ezcGraphRenderer $renderer Renderer used to draw the chart * @param ezcGraphBoundings $boundings Boundings of the axis * @param ezcGraphCoordinate $start Axis starting point * @param ezcGraphCoordinate $end Axis ending point * @param ezcGraphChartElementAxis $axis Axis instance * @return void */ public function renderLabels(ezcGraphRenderer $renderer, ezcGraphBoundings $boundings, ezcGraphCoordinate $start, ezcGraphCoordinate $end, ezcGraphChartElementAxis $axis, ezcGraphBoundings $innerBoundings = null) { // receive rendering parameters from axis $steps = $axis->getSteps(); $axisBoundings = new ezcGraphBoundings($start->x, $start->y, $end->x, $end->y); // Determine normalized axis direction $direction = new ezcGraphVector($end->x - $start->x, $end->y - $start->y); $direction->unify(); // Get axis space $gridBoundings = null; list($xSpace, $ySpace) = $this->getAxisSpace($renderer, $boundings, $axis, $innerBoundings, $gridBoundings); // Draw steps and grid foreach ($steps as $nr => $step) { $position = new ezcGraphCoordinate($start->x + ($end->x - $start->x) * $step->position, $start->y + ($end->y - $start->y) * $step->position); $stepSize = new ezcGraphCoordinate($axisBoundings->width * $step->width, $axisBoundings->height * $step->width); if (!$step->isZero) { // major grid if ($axis->majorGrid) { $this->drawGrid($renderer, $gridBoundings, $position, $stepSize, $axis->majorGrid); } // major step $this->drawStep($renderer, $position, $direction, $axis->position, $this->majorStepSize, $axis->border); } // draw label if ($this->showLabels && ($this->showZeroValue || !$step->isZero)) { // Calculate label boundings if (abs($direction->x) > abs($direction->y)) { // Horizontal labels switch (true) { case $nr === 0: // First label $labelSize = min($xSpace * 2, $step->width * $axisBoundings->width); break; case $step->isLast: // Last label $labelSize = min($xSpace * 2, $steps[$nr - 1]->width * $axisBoundings->width); break; default: $labelSize = min($step->width * $axisBoundings->width, $steps[$nr - 1]->width * $axisBoundings->width); break; } $labelBoundings = new ezcGraphBoundings($position->x - $labelSize / 2 + $this->labelPadding, $position->y + $this->labelPadding, $position->x + $labelSize / 2 - $this->labelPadding, $position->y + $ySpace - $this->labelPadding); $alignement = ezcGraph::CENTER | ezcGraph::TOP; } else { // Vertical labels switch (true) { case $nr === 0: // First label $labelSize = min($ySpace * 2, $step->width * $axisBoundings->height); break; case $step->isLast: // Last label $labelSize = min($ySpace * 2, $steps[$nr - 1]->width * $axisBoundings->height); break; default: $labelSize = min($step->width * $axisBoundings->height, $steps[$nr - 1]->width * $axisBoundings->height); break; } $labelBoundings = new ezcGraphBoundings($position->x - $xSpace + $this->labelPadding, $position->y - $labelSize / 2 + $this->labelPadding, $position->x - $this->labelPadding, $position->y + $labelSize / 2 - $this->labelPadding); $alignement = ezcGraph::MIDDLE | ezcGraph::RIGHT; } $renderer->drawText($labelBoundings, $step->label, $alignement); } // Iterate over minor steps if (!$step->isLast) { foreach ($step->childs as $minorStep) { $minorStepPosition = new ezcGraphCoordinate($start->x + ($end->x - $start->x) * $minorStep->position, $start->y + ($end->y - $start->y) * $minorStep->position); $minorStepSize = new ezcGraphCoordinate($axisBoundings->width * $minorStep->width, $axisBoundings->height * $minorStep->width); if ($axis->minorGrid) { $this->drawGrid($renderer, $gridBoundings, $minorStepPosition, $minorStepSize, $axis->minorGrid); } // major step $this->drawStep($renderer, $minorStepPosition, $direction, $axis->position, $this->minorStepSize, $axis->border); } } } }
/** * Render Axis labels * * Render labels for an axis. * * @param ezcGraphRenderer $renderer Renderer used to draw the chart * @param ezcGraphBoundings $boundings Boundings of the axis * @param ezcGraphCoordinate $start Axis starting point * @param ezcGraphCoordinate $end Axis ending point * @param ezcGraphChartElementAxis $axis Axis instance * @return void */ public function renderLabels(ezcGraphRenderer $renderer, ezcGraphBoundings $boundings, ezcGraphCoordinate $start, ezcGraphCoordinate $end, ezcGraphChartElementAxis $axis, ezcGraphBoundings $innerBoundings = null) { // receive rendering parameters from axis $steps = $axis->getSteps(); $axisBoundings = new ezcGraphBoundings($start->x, $start->y, $end->x, $end->y); // Determine normalized axis direction $direction = new ezcGraphVector($end->x - $start->x, $end->y - $start->y); $direction->unify(); // Get axis space $gridBoundings = null; list($xSpace, $ySpace) = $this->getAxisSpace($renderer, $boundings, $axis, $innerBoundings, $gridBoundings); // Draw steps and grid foreach ($steps as $nr => $step) { $position = new ezcGraphCoordinate($start->x + ($end->x - $start->x) * $step->position, $start->y + ($end->y - $start->y) * $step->position); $stepSize = new ezcGraphCoordinate($axisBoundings->width * $step->width, $axisBoundings->height * $step->width); if (!$step->isZero) { // major grid if ($axis->majorGrid) { $this->drawGrid($renderer, $gridBoundings, $position, $stepSize, $axis->majorGrid); } // major step $this->drawStep($renderer, $position, $direction, $axis->position, $this->majorStepSize, $axis->border); } if ($this->showLabels) { switch ($axis->position) { case ezcGraph::RIGHT: case ezcGraph::LEFT: $labelWidth = $axisBoundings->width * $steps[$nr - $step->isLast]->width / ($this->showLastValue + 1); $labelHeight = $ySpace; if ($this->renderLastOutside === true && $step->isLast === true) { $labelWidth = ($boundings->width - $axisBoundings->width) / 2; } break; case ezcGraph::BOTTOM: case ezcGraph::TOP: $labelWidth = $xSpace; $labelHeight = $axisBoundings->height * $steps[$nr - $step->isLast]->width / ($this->showLastValue + 1); if ($this->renderLastOutside === true && $step->isLast === true) { $labelHeight = ($boundings->height - $axisBoundings->height) / 2; } break; } $showLabel = true; switch (true) { case !$this->showLastValue && $step->isLast: // Skip last step if showLastValue is false $showLabel = false; break; // Draw label at top left of step // Draw label at top left of step case $axis->position === ezcGraph::BOTTOM && !$step->isLast || $axis->position === ezcGraph::BOTTOM && $step->isLast && $this->renderLastOutside || $axis->position === ezcGraph::TOP && $step->isLast && !$this->renderLastOutside: $labelBoundings = new ezcGraphBoundings($position->x - $labelWidth + $this->labelPadding, $position->y - $labelHeight + $this->labelPadding, $position->x - $this->labelPadding, $position->y - $this->labelPadding); $alignement = ezcGraph::RIGHT | ezcGraph::BOTTOM; break; // Draw label at bottom right of step // Draw label at bottom right of step case $axis->position === ezcGraph::LEFT && !$step->isLast || $axis->position === ezcGraph::LEFT && $step->isLast && $this->renderLastOutside || $axis->position === ezcGraph::RIGHT && $step->isLast && !$this->renderLastOutside: $labelBoundings = new ezcGraphBoundings($position->x + $this->labelPadding, $position->y + $this->labelPadding, $position->x + $labelWidth - $this->labelPadding, $position->y + $labelHeight - $this->labelPadding); $alignement = ezcGraph::LEFT | ezcGraph::TOP; break; // Draw label at bottom left of step // Draw label at bottom left of step case $axis->position === ezcGraph::TOP && !$step->isLast || $axis->position === ezcGraph::TOP && $step->isLast && $this->renderLastOutside || $axis->position === ezcGraph::RIGHT && !$step->isLast || $axis->position === ezcGraph::RIGHT && $step->isLast && $this->renderLastOutside || $axis->position === ezcGraph::BOTTOM && $step->isLast && !$this->renderLastOutside || $axis->position === ezcGraph::LEFT && $step->isLast && !$this->renderLastOutside: $labelBoundings = new ezcGraphBoundings($position->x - $labelWidth + $this->labelPadding, $position->y + $this->labelPadding, $position->x - $this->labelPadding, $position->y + $labelHeight - $this->labelPadding); $alignement = ezcGraph::RIGHT | ezcGraph::TOP; break; } if ($showLabel) { $renderer->drawText($labelBoundings, $step->label, $alignement); } } if (!$step->isLast) { // Iterate over minor steps foreach ($step->childs as $minorStep) { $minorStepPosition = new ezcGraphCoordinate($start->x + ($end->x - $start->x) * $minorStep->position, $start->y + ($end->y - $start->y) * $minorStep->position); $minorStepSize = new ezcGraphCoordinate($axisBoundings->width * $minorStep->width, $axisBoundings->height * $minorStep->width); if ($axis->minorGrid) { $this->drawGrid($renderer, $gridBoundings, $minorStepPosition, $minorStepSize, $axis->minorGrid); } // major step $this->drawStep($renderer, $minorStepPosition, $direction, $axis->position, $this->minorStepSize, $axis->border); } } } }
/** * Calculate bar chart step width * * @return void */ protected function calculateStepWidth(ezcGraphChartElementAxis $mainAxis, ezcGraphChartElementAxis $secondAxis, $width) { $steps = $mainAxis->getSteps(); $stepWidth = null; foreach ($steps as $step) { if ($stepWidth === null) { $stepWidth = $step->width; } elseif ($step->width !== $stepWidth) { throw new ezcGraphUnregularStepsException(); } } $step = reset($steps); if (count($step->childs)) { // Keep this for BC reasons $barCount = ($mainAxis->getMajorStepCount() + 1) * ($mainAxis->getMinorStepCount() - 1); $stepWidth = 1 / $barCount; } $checkedRegularSteps = true; return $mainAxis->axisLabelRenderer->modifyChartDataPosition($secondAxis->axisLabelRenderer->modifyChartDataPosition(new ezcGraphCoordinate($width * $stepWidth, $width * $stepWidth))); }
/** * Render Axis labels * * Render labels for an axis. * * @param ezcGraphRenderer $renderer Renderer used to draw the chart * @param ezcGraphBoundings $boundings Boundings of the axis * @param ezcGraphCoordinate $start Axis starting point * @param ezcGraphCoordinate $end Axis ending point * @param ezcGraphChartElementAxis $axis Axis instance * @return void */ public function renderLabels(ezcGraphRenderer $renderer, ezcGraphBoundings $boundings, ezcGraphCoordinate $start, ezcGraphCoordinate $end, ezcGraphChartElementAxis $axis) { // receive rendering parameters from axis $steps = $axis->getSteps(); $this->steps = $steps; $axisBoundings = new ezcGraphBoundings($start->x, $start->y, $end->x, $end->y); // Determine normalized axis direction $this->direction = new ezcGraphVector($end->x - $start->x, $end->y - $start->y); $this->direction->unify(); $axisAngle = -$this->direction->angle(new ezcGraphVector(1, 0)); if ($this->outerGrid) { $gridBoundings = $boundings; } else { $gridBoundings = new ezcGraphBoundings($boundings->x0 + $renderer->xAxisSpace, $boundings->y0 + $renderer->yAxisSpace, $boundings->x1 - $renderer->xAxisSpace, $boundings->y1 - $renderer->yAxisSpace); } // Determine optimal angle if none specified if ($this->angle === null) { $minimumStepWidth = null; foreach ($steps as $nr => $step) { if ($minimumStepWidth === null || $step->width < $minimumStepWidth) { $minimumStepWidth = $step->width; } } $width = abs($axisBoundings->width * $minimumStepWidth * $this->direction->x + $axisBoundings->height * $minimumStepWidth * $this->direction->y); $height = abs($renderer->yAxisSpace * $this->direction->x + $renderer->xAxisSpace * $this->direction->y); $length = sqrt(pow($width, 2) + pow($height, 2)); $this->angle = rad2deg(acos($height / $length)); } // Determine additional required axis space by boxes $firstStep = reset($steps); $lastStep = end($steps); $textAngle = $axisAngle + deg2rad($this->angle) + ($axis->position & (ezcGraph::TOP | ezcGraph::BOTTOM) ? deg2rad(270) : deg2rad(90)); // Ensure angle between 0 and 360 degrees $degTextAngle = rad2deg($textAngle); while ($degTextAngle < 0) { $degTextAngle += 360.0; } $this->offset = ($this->angle < 0 ? -1 : 1) * ($axis->position & (ezcGraph::TOP | ezcGraph::LEFT) ? 1 : -1) * (1 - cos(deg2rad($this->angle * 2))); $axisSpaceFactor = abs(($this->direction->x == 0 ? 0 : $this->direction->x * $renderer->yAxisSpace / $axisBoundings->width) + ($this->direction->y == 0 ? 0 : $this->direction->y * $renderer->xAxisSpace / $axisBoundings->height)); $start = new ezcGraphCoordinate($start->x + max(0.0, $axisSpaceFactor * $this->offset) * ($end->x - $start->x), $start->y + max(0.0, $axisSpaceFactor * $this->offset) * ($end->y - $start->y)); $end = new ezcGraphCoordinate($end->x + min(0.0, $axisSpaceFactor * $this->offset) * ($end->x - $start->x), $end->y + min(0.0, $axisSpaceFactor * $this->offset) * ($end->y - $start->y)); $labelLength = sqrt(pow($renderer->xAxisSpace * $this->direction->y + $axisSpaceFactor * $this->offset * ($end->x - $start->x), 2) + pow($renderer->yAxisSpace * $this->direction->x + $axisSpaceFactor * $this->offset * ($end->y - $start->y), 2)); $this->offset *= $axisSpaceFactor; // Draw steps and grid foreach ($steps as $nr => $step) { $position = new ezcGraphCoordinate($start->x + ($end->x - $start->x) * $step->position * abs($this->direction->x), $start->y + ($end->y - $start->y) * $step->position * abs($this->direction->y)); $stepSize = new ezcGraphCoordinate(($end->x - $start->x) * $step->width, ($end->y - $start->y) * $step->width); // Calculate label boundings switch (true) { case $nr === 0: $labelSize = min(abs($renderer->xAxisSpace * 2 * $this->direction->x + $renderer->yAxisSpace * 2 * $this->direction->y), abs($step->width * $axisBoundings->width * $this->direction->x + $step->width * $axisBoundings->height * $this->direction->y)); break; case $step->isLast: $labelSize = min(abs($renderer->xAxisSpace * 2 * $this->direction->x + $renderer->yAxisSpace * 2 * $this->direction->y), abs($steps[$nr - 1]->width * $axisBoundings->width * $this->direction->x + $steps[$nr - 1]->width * $axisBoundings->height * $this->direction->y)); break; default: $labelSize = min(abs($step->width * $axisBoundings->width * $this->direction->x + $step->width * $axisBoundings->height * $this->direction->y), abs($steps[$nr - 1]->width * $axisBoundings->width * $this->direction->x + $steps[$nr - 1]->width * $axisBoundings->height * $this->direction->y)); break; } $labelSize = $labelSize * cos(deg2rad($this->angle)); $lengthReducement = min(abs(tan(deg2rad($this->angle)) * ($labelSize / 2)), abs($labelLength / 2)); switch (true) { case $degTextAngle >= 0 && $degTextAngle < 90 && ($axis->position === ezcGraph::LEFT || $axis->position === ezcGraph::RIGHT) || $degTextAngle >= 270 && $degTextAngle < 360 && ($axis->position === ezcGraph::TOP || $axis->position === ezcGraph::BOTTOM): $labelBoundings = new ezcGraphBoundings($position->x, $position->y, $position->x + abs($labelLength) - $lengthReducement, $position->y + $labelSize); $labelAlignement = ezcGraph::LEFT | ezcGraph::TOP; $labelRotation = $degTextAngle; break; case $degTextAngle >= 90 && $degTextAngle < 180 && ($axis->position === ezcGraph::LEFT || $axis->position === ezcGraph::RIGHT) || $degTextAngle >= 180 && $degTextAngle < 270 && ($axis->position === ezcGraph::TOP || $axis->position === ezcGraph::BOTTOM): $labelBoundings = new ezcGraphBoundings($position->x - abs($labelLength) + $lengthReducement, $position->y, $position->x, $position->y + $labelSize); $labelAlignement = ezcGraph::RIGHT | ezcGraph::TOP; $labelRotation = $degTextAngle - 180; break; case $degTextAngle >= 180 && $degTextAngle < 270 && ($axis->position === ezcGraph::LEFT || $axis->position === ezcGraph::RIGHT) || $degTextAngle >= 90 && $degTextAngle < 180 && ($axis->position === ezcGraph::TOP || $axis->position === ezcGraph::BOTTOM): $labelBoundings = new ezcGraphBoundings($position->x - abs($labelLength) + $lengthReducement, $position->y - $labelSize, $position->x, $position->y); $labelAlignement = ezcGraph::RIGHT | ezcGraph::BOTTOM; $labelRotation = $degTextAngle - 180; break; case $degTextAngle >= 270 && $degTextAngle < 360 && ($axis->position === ezcGraph::LEFT || $axis->position === ezcGraph::RIGHT) || $degTextAngle >= 0 && $degTextAngle < 90 && ($axis->position === ezcGraph::TOP || $axis->position === ezcGraph::BOTTOM): $labelBoundings = new ezcGraphBoundings($position->x, $position->y + $labelSize, $position->x + abs($labelLength) - $lengthReducement, $position->y); $labelAlignement = ezcGraph::LEFT | ezcGraph::BOTTOM; $labelRotation = $degTextAngle; break; } $renderer->drawText($labelBoundings, $step->label, $labelAlignement, new ezcGraphRotation($labelRotation, $position)); // major grid if ($axis->majorGrid) { $this->drawGrid($renderer, $gridBoundings, $position, $stepSize, $axis->majorGrid); } // major step $this->drawStep($renderer, $position, $this->direction, $axis->position, $this->majorStepSize, $axis->border); } }