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mrpiggi / svg

Handling SVG pictures in LaTeX documents using Inkscape, ImageMagick and/or Ghostscript
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Default size #26

Closed lberrada closed 4 years ago

lberrada commented 4 years ago

Hi, many thanks for the great package. Despite spending time reading the doc, I haven't been able to figure out the answer to the following question:

Given an SVG input file with specified height and width in pixels and the default scale=1, what are the dimensions of the resulting compiled image (in units understood by latex)? I would have expected includesvg to use a DPI value that translates the size in pixels to a size in cm/in/pt, but I haven't been able to find this (in my code, changing the value of the inkscapedpi option seems to have no effect on the resulting size of the image).

mrpiggi commented 4 years ago

Maybe there's been a misunderstanding with you. Inkscape usually creates vector graphics in PDF format, which can be scaled as desired. Specifying the parameters width/height/scale allows scaling the graphic to the desired size within the document. These parameters are passed internally to the \includegraphics command from package graphicx, which is used to include the exported PDF file.

The option inkscapedpi is only meaningfull, if either the export format is PNG or the SVG file contains filtered objects, which should be rasterized.

For the translation between pixels and LaTeX units see: https://tex.stackexchange.com/a/41371/38481

lberrada commented 4 years ago

This is very helpful, many thanks for clarifying!