Legacy ImageMagick Discussions Archive

Hi.

I'm new to ImageMagick, and I've been trying to use the C++ API to convert an SVG file to a PNG. The problem is that the resulting PNG file's background always defaults to white. I've been searching for solutions for this, but all I find is the solution using the comand line

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convert -background none svg_image.svg png_image.png

This command line does exactly what I want, but I can't seem to find a way to do it with the C++ API. Here is the code that I'm using to convert the image to PNG:

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Magick::Image svgImage(svgFilePath);
svgImage.magick("png");
Magick::Blob blob;
svgImage.write(&blob);

Is this possible to do and if so, how can I do it?

Thanks!

Declare an image and set the background color, e.g. example.backgroundColor( "#000000FF" ); The use read() to read the image, e.g. example.read(svgFilePath).

Thanks. This worked

Just want to point out (in case anyone has the same problem) that the order in which you do things is important. I tried this solution specifying the PNG format first and then reading the SVG file (which is wrong). The correct order is as follows:

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Magick::Color c(0x0, 0x0, 0x0, 0xFFFF); // transparent
Magick::Image svgImage;
svgImage.backgroundColor(c);
svgImage.read(svgFilePath);  // first read file
svgImage.magick("png");  // then specify PNG format
Magick::Blob blob;
svgImage.write(&blob);

Once again, thanks for the help.

Legacy ImageMagick Discussions Archive

[C++ API] Convert svg to png with transparent background

[C++ API] Convert svg to png with transparent background

Re: [C++ API] Convert svg to png with transparent background

Re: [C++ API] Convert svg to png with transparent background