peterstangl / svg2data Goto Github PK

Hi,

I'm trying to extract data from this PDF containing several hundred plots. https://fortress.wa.gov/ecy/publications/documents/0803037appc.pdf

For example, I'm starting with the second plot on page 14 for Alki East Chlorophyll-a. If all I do is save this page as an SVG using Inkscape 1.0, I get this:

svg2data/svg2data.py in get_axes(lines, width, height)
    730                 cleaned_axes[i].append(axes[i][j])
    731     axes = cleaned_axes
--> 732     axes_min = np.array([axes[0][0]['min'][0],axes[1][0]['min'][1]])
    733     axes_max = np.array([axes[0][0]['max'][0],axes[1][0]['max'][1]])
    734     new_lines = []

IndexError: list index out of range

Next I tried to make the job easier by deleting everything from the page except the plot I want. Same error.
Next, I used Inkscape to Resize Page to Selection (the resulting SVG is attached with the extension changed to please github)
[0803037appc_p14.txt](https://github.com/peterstangl/svg2data/files/5046091/0803037appc_p14.txt
This produces:

svg2data/svg2data.py in __init__(self, filename, test, debug)
    104         and debug != 'get_axes'
    105         and debug != 'connect_graphs'):
--> 106             grids = calibrate_grid(axes,phrases,width,height)
    107         elif debug == 'calibrate_grid':
    108             self.debug = {'axes':axes,

svg2data/svg2data.py in calibrate_grid(axes, phrases, width, height)
   1033                         axis_scaling = 'linear'
   1034                 else:
-> 1035                     raise Exception('no grid found!')
   1036                 grids_calibr[axis_type]['type']=axis_scaling
   1037                 grids_calibr[axis_type]['grid']=grid_calibr

Exception: no grid found!

Any ideas why it can't find the plot? Is a grid required?

Could this be due to the version of Python I am running?

data = svg2data("test.svg")

Traceback (most recent call last):

File ~\AppData\Roaming\Python\Python311\site-packages\IPython\core\interactiveshell.py:3505 in run_code
exec(code_obj, self.user_global_ns, self.user_ns)

Cell In[6], line 1
data = svg2data("test.svg")

File D:\Users\Nick\Documents\Python\svg2data.py:49 in init
child = pass_transformation(child)

File D:\Users\Nick\Documents\Python\svg2data.py:233 in pass_transformation
child = pass_transformation(child)

File D:\Users\Nick\Documents\Python\svg2data.py:213 in pass_transformation
parent_matrix = transform2matrix(parent_transform)

File D:\Users\Nick\Documents\Python\svg2data.py:169 in transform2matrix
matrix = ast.literal_eval(matrix_string)

File C:\Program Files\Python311\Lib\ast.py:64 in literal_eval
node_or_string = parse(node_or_string.lstrip(" \t"), mode='eval')

File C:\Program Files\Python311\Lib\ast.py:50 in parse
return compile(source, filename, mode, flags,

File :1
[1 0 0 1 8 8]
^
SyntaxError: invalid syntax. Perhaps you forgot a comma?

KeyError Traceback (most recent call last)
~\AppData\Local\Temp/ipykernel_102044/517397449.py in
----> 1 from svg2data import svg2data

D:\OneDrive\Work\ICM\QCircle\sandbox\options\svgexport\svg2data\svg2data.py in
8 import os.path
9 from math import sin, cos, tan, pi
---> 10 afm_dir = os.path.join(rcParams['datapath'],'fonts', 'afm')
11 afm_dict = {}
12 for afm_file in os.listdir(afm_dir):

d:\Miniconda3\envs\icm\lib\site-packages\matplotlib_init_.py in getitem(self, key)
672 plt.switch_backend(rcsetup._auto_backend_sentinel)
673
--> 674 return dict.getitem(self, key)
675
676 def repr(self):

KeyError: 'datapath'

Hello, my SVG file was generated with Adobe Illustrator. To obtain height and width Use:

root.attrib
>>> {'viewBox': 'min max width height'}
width = root.attrib['viewBox'].split()[2]
height = root.attrib['viewBox'].split()[3]

But then this error appears:

    562             if 'style' in path.attrib:
    563                 style = path.attrib['style']
--> 564         path.attrib['style'] = style
    565         path.attrib['d'] = lines_and_curves_to_path(line_list,curve_list)
    566         if path.attrib not in paths:

UnboundLocalError: local variable 'style' referenced before assignment

How can I fix that?

Originally posted by @JCLArriaga5 in #3 (comment)

Hi!
I found your utility here and feel like it may be very useful for me. I try to use it as manual says but got an error:

from svg2data import svg2data
data = svg2data("/data/test.svg")

Produces:

ValueError                                Traceback (most recent call last)
<ipython-input-2-15f3cf48a742> in <module>
----> 1 data = svg2data("/data/test.svg")
      2 data.writesvg('/data/newfile.svg')

~/Downloads/svg2data-master/svg2data.py in __init__(self, filename, test, debug)
     38             self._tree = ET.parse(filename)
     39             root = self._tree.getroot()
---> 40             width = float(root.attrib['width'])
     41             height = float(root.attrib['height'])
     42 

ValueError: could not convert string to float: '210mm'

when I changed sources to:

width = float(root.attrib['width'][:-2])
height = float(root.attrib['height'][:-2])

I was able to read and write svg file in the debug mode debug='get_axes', but I can't figure out how to fix other parts of the code which are responsible for plotting.

Is it a problem of my sample svg file or not? Could you help me to fix this issue?

Thanks,
Anton