function test_path(&$canvas) { $draw = new ImagickDraw(); $draw->setFillColor('transparent'); $draw->setStrokeColor('blue'); $draw->setStrokeWidth(4); $draw->pathStart(); $draw->pathMoveToAbsolute(300, 10); $draw->pathLineToHorizontalRelative(50); $draw->pathLineToVerticalRelative(50); $draw->pathEllipticArcRelative(40, 30, 30, false, true, 60, 10); $draw->pathLineToAbsolute(444, 22); $draw->pathFinish(); $draw->pathStart(); $draw->pathMoveToAbsolute(480, 30); $draw->pathCurveToAbsolute(520, 40, 560, 10, 600, 20); $draw->pathCurveToQuadraticBezierRelative(30, 10, -60, 80); $draw->pathCurveToQuadraticBezierSmoothRelative(20, -50); $draw->pathClose(); $draw->pathFinish(); $canvas->drawImage($draw); }
function drawBezierChart($points, $roundness) { //Calculate the tangent vector for each point that you're drawing. $tangents = $this->getPointTangents($points); $positions = $this->getPointPositions($points); $numberOfPoints = count($points); $this->draw->setFillColor('#B42AAF9F'); $this->draw->translate($this->chartWidth / 2, $this->chartHeight / 2); $this->draw->pathStart(); $this->draw->pathMoveToAbsolute($positions[0][0], $positions[0][1]); //Scale that by the 'value' of each point aka the distance from the chart's centre. //Also scale it by how rounded you want the chart. for ($i = 0; $i < $numberOfPoints; $i++) { list($nextPositionX, $nextPositionY) = $positions[($i + 1) % $numberOfPoints]; list($controlPoint1X, $controlPoint1Y) = $this->getControlPoint($points[$i], $positions[$i], $tangents[$i], 1, $roundness, count($points)); list($controlPoint2X, $controlPoint2Y) = $this->getControlPoint($points[($i + 1) % $numberOfPoints], $positions[($i + 1) % $numberOfPoints], $tangents[($i + 1) % $numberOfPoints], -1, $roundness, count($points)); $this->draw->pathCurveToAbsolute($controlPoint1X, $controlPoint1Y, $controlPoint2X, $controlPoint2Y, $nextPositionX, $nextPositionY); } $this->draw->pathClose(); $this->draw->pathFinish(); foreach ($this->points as $point) { $this->draw->circle($point[0], $point[1], $point[2], $point[3]); } }
function pathStart($strokeColor, $fillColor, $backgroundColor) { $draw = new \ImagickDraw(); $draw->setStrokeOpacity(1); $draw->setStrokeColor($strokeColor); $draw->setFillColor($fillColor); $draw->setStrokeWidth(2); $draw->setFontSize(72); $draw->pathStart(); $draw->pathMoveToAbsolute(50, 50); $draw->pathLineToAbsolute(100, 50); $draw->pathLineToRelative(0, 50); $draw->pathLineToHorizontalRelative(-50); $draw->pathFinish(); $draw->pathStart(); $draw->pathMoveToAbsolute(50, 50); $draw->pathMoveToRelative(300, 0); $draw->pathLineToRelative(50, 0); $draw->pathLineToVerticalRelative(50); $draw->pathLineToHorizontalAbsolute(350); $draw->pathclose(); $draw->pathFinish(); $draw->pathStart(); $draw->pathMoveToAbsolute(50, 300); $draw->pathCurveToAbsolute(50, 300, 100, 200, 300, 300); $draw->pathLineToVerticalAbsolute(350); $draw->pathFinish(); $imagick = new \Imagick(); $imagick->newImage(500, 500, $backgroundColor); $imagick->setImageFormat("png"); $imagick->drawImage($draw); header("Content-Type: image/png"); echo $imagick->getImageBlob(); }