![]() Static void error_handler(HPDF_STATUS error_no, Void pdfPath(HPDF_Page page, float* pts, int npts, char closed, float tol, bool bFilled, Void pdfcubicBez(HPDF_Page page, float x1, float y1, float x2, float y2,įloat tol, int level, Vector2f startPoint) You just need to call a method that is responsible for loading the other file.īool loadFromFile( std::string fileName) īool convertToPDF( std::string fileName) įloat distPtSeg( float x, float y, float px, float py, float qx, float qy) The same object can be used multiple to convert other images. The SvgConverter class is a basic workhorse to convert SVG to PDF. Though not actively developed now (2018), it still can be used in C/C++ projects. To compose PDF files, I have used write-only libHaru library. It is small and lightweight and can be used even in embedded development projects. Backgroundįor the processing of SVG files, I used brilliant library called nanosvg. Strokes and fills can use any color set in the graphics state, including patterns. Paths in PDF can be stroked, filled, clipping. Paths are usually composed of lines and cubic Bezier curves, but can also be constructed from the outlines of text. Vector graphics in PDF are constructed with paths too. The Portable Document Format (PDF) is a file format to represent documents, including text formatting, raster images, vector graphics, etc. A composite Bezier curve is commonly referred to as a path. When more complex shapes are needed, low order Bezier curves are patched together, producing a composite Bezier curve. Higher degree curves are more computationally expensive to evaluate. Quadratic and cubic Bezier curves are most common. Bezier curve can be represented as a set of control points. I have included a nice kitten here as a sample of SVG image:īézier curve is a parametric curve which is used to model smooth curves that can be scaled indefinitely. The advantage of SVG format is that it can be easily scaled to any level without the loss of quality. While the raster image (PNG, JPG, GIF, etc.) is composed of a fixed set of pixels, the vector SVG image is composed of a fixed set of shapes, like circles, lines, rectangles, Bezier curves, etc. The SVG format is heavily based on XML standard. Scalable Vector Graphics (SVG) is a 2D vector image format widely used in Web development. The code was written for Windows, but has no Windows-only dependencies and can be easily ported to Linux or any embedded platform. For ease of understanding, all processing in app only works in grayscale mode. This code was written to demonstrate the process of parsing vector SVG files in C/C++ application, working with Bezier curves, and saving the vector image to PDF.
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