I've had some success and some problems using the Polygonizer plugin in the past. I'm using Polygonizer 2.1 in QGIS 1.8 on Windows 7. I'm aware there are sometimes problems using Polygonizer in Windows, but I was wondering if any solutions or work-arounds had come up since I researched the issue the last time.
The linear layer I want to convert at present is fairly complex and consists of 18693 lines. When I use the "new method", it reaches 44% completion and just stops. I've had it running for about 3 hours now at 44%. Only rarely do I get an error message. When I use the old method, it is extremely slow, completing about 1% per hour. Last year I was able to run Polygonizer successfully on an older computer with Windows 2000, but that machine has since died! Does anyone have any suggestions?
The rarely appearing error message reads:
An error has occured while executing Python code:
Traceback (most recent call last): File "C:/Users/George/.qgis//python/plugins\Polygonizer\PolygonizerDialog.py", line 103, in threadFinished
msg = QMessageBox.question(self, 'Polygonizer', 'Polygonization finished in %03.2f seconds. \n %d polygons were crested. \n Load created layer?' % ((self.t2 - self.t1), polyCount), QMessageBox.Yes | QMessageBox.No, QMessageBox.Yes)
NameError: global name 'polyCount' is not defined
Python version: 2.7.2 (default, Jun 12 2011, 15:08:59) [MSC v.1500 32 bit (Intel)]
QGIS version: 1.8.0-Lisboa Lisboa, 6416f38