/**
* Draw single step on a axis
*
* Draws a step on a axis at the current position
*
* @param ezcGraphRenderer $renderer Renderer to draw the step with
* @param ezcGraphCoordinate $position Position of step
* @param ezcGraphCoordinate $direction Direction of axis
* @param int $axisPosition Position of axis
* @param int $size Step size
* @param ezcGraphColor $color Color of axis
* @return void
*/
public function drawStep(ezcGraphRenderer $renderer, ezcGraphCoordinate $position, ezcGraphCoordinate $direction, $axisPosition, $size, ezcGraphColor $color)
{
if (!($this->innerStep || $this->outerStep)) {
return false;
}
$drawStep = false;
if ($axisPosition === ezcGraph::CENTER && $this->innerStep || $axisPosition === ezcGraph::BOTTOM && $this->outerStep || $axisPosition === ezcGraph::TOP && $this->innerStep || $axisPosition === ezcGraph::RIGHT && $this->outerStep || $axisPosition === ezcGraph::LEFT && $this->innerStep) {
// Turn direction vector to left by 90 degrees and multiply
// with major step size
$stepStart = new ezcGraphCoordinate($position->x + $direction->y * $size, $position->y - $direction->x * $size);
$drawStep = true;
} else {
$stepStart = $position;
}
if ($axisPosition === ezcGraph::CENTER && $this->innerStep || $axisPosition === ezcGraph::BOTTOM && $this->innerStep || $axisPosition === ezcGraph::TOP && $this->outerStep || $axisPosition === ezcGraph::RIGHT && $this->innerStep || $axisPosition === ezcGraph::LEFT && $this->outerStep) {
// Turn direction vector to right by 90 degrees and multiply
// with major step size
$stepEnd = new ezcGraphCoordinate($position->x - $direction->y * $size, $position->y + $direction->x * $size);
$drawStep = true;
} else {
$stepEnd = $position;
}
if ($drawStep) {
$renderer->drawStepLine($stepStart, $stepEnd, $color);
}
}
