Parse SVG XML files

sgenzer

Hi...I'd love to see a way for the "Read XML" operator to be adapted so that it can easily read SVG vector image files, broken down by image, subimage, segment, etc...  It would be a great way to do image analysis!!

 

FYI I know there is a Java SVG parser publicly available...could this be used?    https://xmlgraphics.apache.org/batik/

 

Scott

 

MartinLiebig

Hi Scott,

 

how would the resulting table look like?

 

~Martin

sgenzer

Excellent question  Here's what I think would make sense..

 

Original XML SVG file: 

<?xml version="1.0" standalone="no"?>
<!DOCTYPE svg PUBLIC "-//W3C//DTD SVG 1.1//EN" 
  "http://www.w3.org/Graphics/SVG/1.1/DTD/svg11.dtd">
<svg width="4cm" height="4cm" viewBox="0 0 400 400"
     xmlns="http://www.w3.org/2000/svg" version="1.1">
  <title>Example triangle01- simple example of a 'path'</title>
  <desc>A path that draws a triangle</desc>
  <rect x="1" y="1" width="398" height="398"
        fill="none" stroke="blue" />
  <path d="M 100 100 L 300 100 L 200 300 z"
        fill="red" stroke="blue" stroke-width="3" />
</svg>

Output:

 

Width, title, desc all in metadata - only paths in example set:

 

path      command     x        y    x1   x2   y1   y2   width    height     fill       stroke    stroke-width

rect                                1        1                                    398        398          none   blue

d             M                     100  100

d             L                      300  100

d             L                      200  300

d             z                                                                                                        red    blue        3

 

The key for me here is both to break out the shapes AND to de-pivot the paths.

Scott