I have drawn an equilateral triangle as follows using iText
canvas.setColorStroke(BaseColor.BLACK); int x = start.getX(); int y = start.getY(); canvas.moveTo(x,y); canvas.lineTo(x + side,y); canvas.lineTo(x + (side/2), (float)(y+(side*Math.sin(convertToRadian(60))))); canvas.closePathStroke();
I wish to add a multi color gradient in this shape i.e. fill it with shading comprising of
BaseColor.BLUE. I just can't find a way to do this with iText.
PdfCanvas canvas = new PdfCanvas(pdfDoc.addNewPage()); float x = 36; float y = 740; float side = 70; PdfShading.Axial axial = new PdfShading.Axial(new PdfDeviceCs.Rgb(), x, y, Color.PINK.getColorValue(), x + side, y, Color.BLUE.getColorValue()); PdfPattern.Shading shading = new PdfPattern.Shading(axial); canvas.setFillColorShading(shading); canvas.moveTo(x, y); canvas.lineTo(x + side, y); canvas.lineTo(x + (side / 2), (float) (y + (side * Math.sin(Math.PI / 3)))); canvas.closePathFillStroke();
As you can see, you need to create a
PdfShading.Axial object. I created an axial shading that varies from pink to blue from the coordinate
(x, y) to the coordinate
(x + side, y). With this axial shading, you can create a
PdfPattern.Shading that can be used as a parameter of the
setFillColorShading() method to set the fill color for the canvas.
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