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Index » Products » LaTeX Equation Editor » CK Editor »

Equation editor plugin: image quality

Prabal1\′s Photo
7 Sep 15, 9:50AM
(2 replies)
Equation editor plugin: image quality
Hello,

Is there a way to improve the resolution of the image rendered by the CodeCogs engine?

Please see the image here (CKEditor content was exported to PDF):

28104/eqnquality.jpg
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I chose the format to be png in the onLoad function in eqneditor.js file.

Is there a way to control the resolution of this image? The current quality is not acceptable for our workflow.

Thanks, Prabal.
CodeCogs\′s Photo
7 Sep 15, 1:14PM
There are two routes you might want to consider:

1) Generate a Hi Res Gif Images

Starting with a standard equation request, i.e.
http://latex.codecogs.com/gif.latex?1+sin(x^2)
which generate this: http://latex.codecogs.com/gif.latex?1+sin(x^2)

Add "\dpi{300}" (say) to the start of the line to get a hi-res images, i.e.
http://latex.codecogs.com/gif.latex?\dpi{300}1+sin(x^2)
which generate this: http://latex.codecogs.com/gif.latex?\dpi{300}1+sin(x^2)

2) Generate an svg or pdf image

A vector image can then be embedded into your output document. This just requires a small change to the url, i.e.
http://latex.codecogs.com/svg.latex?1+sin(x^2)
which generate this: http://latex.codecogs.com/svg.latex?1+sin(x^2)

or
http://latex.codecogs.com/pdf.latex?1+sin(x^2)
which generate this: http://latex.codecogs.com/pdf.latex?1+sin(x^2)

Prabal1\′s Photo
7 Sep 15, 1:41PM
Thanks! I tried both and here are my observations:

1. Increasing the resolution did create a higher quality image, but also resulted in a larger dimension. Is there a way to constrain the dimension of the image?

28104/eqnquality_larger.jpg
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2. Generating an SVG image did work quite well:

28104/eqnquality_svg.jpg
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I'll now need to see if I can retain the quality when converting SVG to EMF (which is what our technical publication team needs)

Thanks, Prabal.
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