fix in imagetracer.js handling
This commit is contained in:
parent
5949668e12
commit
d9dfc3323b
@ -17,16 +17,23 @@ Features
|
||||
Author: Mario Voigt / FabLab Chemnitz
|
||||
Mail: mario.voigt@stadtfabrikanten.org
|
||||
Date: 18.08.2020
|
||||
Last patch: 18.08.2020
|
||||
Last patch: 23.04.2021
|
||||
License: GNU GPL v3
|
||||
|
||||
Used version of imagetracerjs: https://github.com/jankovicsandras/imagetracerjs/commit/4d0f429efbb936db1a43db80815007a2cb113b34
|
||||
|
||||
ToDo:
|
||||
- fix resizing if one or all of the following sizes are zero:
|
||||
img_w = image.get('width')
|
||||
img_h = image.get('height')
|
||||
img_x = image.get('x')
|
||||
img_y = image.get('y')
|
||||
"""
|
||||
|
||||
class Imagetracerjs (inkex.EffectExtension):
|
||||
|
||||
def checkImagePath(self, node):
|
||||
xlink = node.get('xlink:href')
|
||||
def checkImagePath(self, element):
|
||||
xlink = element.get('xlink:href')
|
||||
if xlink and xlink[:5] == 'data:':
|
||||
# No need, data alread embedded
|
||||
return
|
||||
@ -39,7 +46,7 @@ class Imagetracerjs (inkex.EffectExtension):
|
||||
|
||||
# Backup directory where we can find the image
|
||||
if not os.path.isfile(path):
|
||||
path = node.get('sodipodi:absref', path)
|
||||
path = element.get('sodipodi:absref', path)
|
||||
|
||||
if not os.path.isfile(path):
|
||||
inkex.errormsg('File not found "{}". Unable to embed image.').format(path)
|
||||
@ -70,32 +77,33 @@ class Imagetracerjs (inkex.EffectExtension):
|
||||
pars.add_argument("--blurdelta", type=float, default=20.0, help="RGBA delta treshold for selective Gaussian blur preprocessing")
|
||||
|
||||
def effect(self):
|
||||
|
||||
|
||||
# internal overwrite for scale:
|
||||
self.options.scale = 1.0
|
||||
|
||||
if (self.options.ids):
|
||||
for node in self.svg.selected.values():
|
||||
if node.tag == inkex.addNS('image', 'svg'):
|
||||
self.path = self.checkImagePath(node) # This also ensures the file exists
|
||||
if len(self.svg.selected) > 0:
|
||||
images = self.svg.selection.filter(inkex.Image).values()
|
||||
if len(images) > 0:
|
||||
for image in images:
|
||||
self.path = self.checkImagePath(image) # This also ensures the file exists
|
||||
if self.path is None: # check if image is embedded or linked
|
||||
image_string = node.get('{http://www.w3.org/1999/xlink}href')
|
||||
image_string = image.get('{http://www.w3.org/1999/xlink}href')
|
||||
# find comma position
|
||||
i = 0
|
||||
while i < 40:
|
||||
if image_string[i] == ',':
|
||||
break
|
||||
i = i + 1
|
||||
image = Image.open(BytesIO(base64.b64decode(image_string[i + 1:len(image_string)])))
|
||||
img = Image.open(BytesIO(base64.b64decode(image_string[i + 1:len(image_string)])))
|
||||
else:
|
||||
image = Image.open(self.path)
|
||||
img = Image.open(self.path)
|
||||
|
||||
# Write the embedded or linked image to temporary directory
|
||||
if os.name == "nt":
|
||||
exportfile = "imagetracerjs.png"
|
||||
else:
|
||||
exportfile ="/tmp/imagetracerjs.png"
|
||||
image.save(exportfile, "png")
|
||||
img.save(exportfile, "png")
|
||||
|
||||
nodeclipath = os.path.join("imagetracerjs-master", "nodecli", "nodecli.js")
|
||||
|
||||
@ -124,17 +132,17 @@ class Imagetracerjs (inkex.EffectExtension):
|
||||
command += " desc " + str(self.options.desc).lower()
|
||||
command += " blurradius " + str(self.options.blurradius)
|
||||
command += " blurdelta " + str(self.options.blurdelta)
|
||||
|
||||
|
||||
# Create the vector traced SVG file
|
||||
with os.popen(command, "r") as tracerprocess:
|
||||
result = tracerprocess.read()
|
||||
if result != "imagetracerjs.png.svg was saved!\n":
|
||||
if "was saved!" not in result:
|
||||
self.msg("Error while processing input: " + result)
|
||||
self.msg("Check the image file (maybe convert and save as new file) and try again.")
|
||||
self.msg("\nYour parser command:")
|
||||
self.msg(command)
|
||||
|
||||
|
||||
|
||||
# proceed if traced SVG file was successfully created
|
||||
if os.path.exists(exportfile + ".svg"):
|
||||
# Delete the temporary png file again because we do not need it anymore
|
||||
@ -153,23 +161,31 @@ class Imagetracerjs (inkex.EffectExtension):
|
||||
viewBox = doc.get('viewBox') #eg "0 0 700 600"
|
||||
trace_width = viewBox.split(' ')[2]
|
||||
trace_height = viewBox.split(' ')[3]
|
||||
newGroup.attrib['transform'] = "matrix(" + \
|
||||
str(float(node.get('width')) / float(trace_width)) + \
|
||||
", 0, 0 , " + \
|
||||
str(float(node.get('height')) / float(trace_height)) + \
|
||||
"," + node.get('x') + \
|
||||
"," + node.get('y') + ")"
|
||||
newGroup.append(doc)
|
||||
|
||||
|
||||
img_w = image.get('width')
|
||||
img_h = image.get('height')
|
||||
img_x = image.get('x')
|
||||
img_y = image.get('y')
|
||||
|
||||
if img_w is not None and img_h is not None and img_x is not None and img_y is not None:
|
||||
transform = "matrix({:1.6f}, 0, 0, {:1.6f}, {:1.6f}, {:1.6f})"\
|
||||
.format(float(img_w) / float(trace_width), float(img_h) / float(trace_height), float(img_x), float(img_y))
|
||||
newGroup.attrib['transform'] = transform
|
||||
|
||||
for child in doc.getchildren():
|
||||
newGroup.append(child)
|
||||
|
||||
# Delete the temporary svg file
|
||||
if os.path.exists(exportfile + ".svg"):
|
||||
os.remove(exportfile + ".svg")
|
||||
|
||||
#remove the old image or not
|
||||
if self.options.keeporiginal is not True:
|
||||
node.delete()
|
||||
image.delete()
|
||||
else:
|
||||
self.msg("No images found in selection! Check if you selected a group instead.")
|
||||
else:
|
||||
self.msg("No image found for tracing. Please select an image first.")
|
||||
self.msg("Selection is empty. Please select one or more images.")
|
||||
|
||||
if __name__ == '__main__':
|
||||
Imagetracerjs().run()
|
||||
Reference in New Issue
Block a user