CalculatingConnectorLineAngle.java

package com.aspose.slides.examples.Slides.Shapes;

import com.aspose.slides.AutoShape;
import com.aspose.slides.Connector;
import com.aspose.slides.Presentation;
import com.aspose.slides.Shape;
import com.aspose.slides.ShapeType;
import com.aspose.slides.Slide;
import com.aspose.slides.examples.Utils;

public class CalculatingConnectorLineAngle {

	public static void main(String[] args) {

		TestLineDirection();
	}

	public static void TestLineDirection() {
		// The path to the documents directory.
		String dataDir = Utils.getDataDir(CalculatingConnectorLineAngle.class);
		Presentation pres = new Presentation(dataDir + "ConnectorLineAngle.pptx");
		Slide slide = (Slide) pres.getSlides().get_Item(0);
		Shape shape;
		for (int i = 0; i < slide.getShapes().size(); i++) {
			double dir = 0.0;
			shape = (Shape) slide.getShapes().get_Item(i);
			if (shape instanceof AutoShape) {
				AutoShape ashp = (AutoShape) shape;
				if (ashp.getShapeType() == (byte) ShapeType.Line) {
					dir = getDirection(ashp.getWidth(), ashp.getHeight(), ashp.getFrame().getFlipH() != 0, ashp.getFrame().getFlipV() != 0);
				}
			} else if (shape instanceof Connector) {
				Connector ashp = (Connector) shape;
				dir = getDirection(ashp.getWidth(), ashp.getHeight(), ashp.getFrame().getFlipH() != 0, ashp.getFrame().getFlipV() != 0);
			}

			System.out.println(dir);
		}
	}

	public static double getDirection(float w, float h, boolean flipH, boolean flipV) {
		float endLineX = w * (flipH ? -1 : 1);
		float endLineY = h * (flipV ? -1 : 1);
		float endYAxisX = 0;
		float endYAxisY = h;
		double angle = (java.lang.Math.atan2(endYAxisY, endYAxisX) - java.lang.Math.atan2(endLineY, endLineX));
		if (angle < 0)
			angle += 2 * Math.PI;
		return angle * 180.0 / Math.PI;
	}

}