# Python: module skeinforge_application.skeinforge_plugins.craft_plugins.hop

skeinforge_application.skeinforge_plugins.craft_plugins.hop ($Date: 2008/21/04 $) | index /home/enrique/Desktop/backup/babbleold/script/reprap/fabmetheus/skeinforge_application/skeinforge_plugins/craft_plugins/hop.py

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`
Hop is a script to raise the extruder when it is not extruding.
The hop manual page is at:
http://www.bitsfrombytes.com/wiki/index.php?title=Skeinforge_Hop
Operation
Settings
Hop Over Layer Thickness
Minimum Hop Angle
Examples
`

## Operation

The default 'Activate Hop' checkbox is off. It is off because Vik and Nophead found better results without hopping. When it is on, the functions described below will work, when it is off, the functions will not be called.

## Settings

### Hop Over Layer Thickness

Default is one.
Defines the ratio of the hop height over the layer thickness, this is the most important hop setting.

### Minimum Hop Angle

Default is 20 degrees.
Defines the minimum angle that the path of the extruder will be raised. An angle of ninety means that the extruder will go straight up as soon as it is not extruding and a low angle means the extruder path will gradually rise to the hop height.

## Examples

The following examples hop the file Screw Holder Bottom.stl. The examples are run in a terminal in the folder which contains Screw Holder Bottom.stl and hop.py.
> python hop.py
This brings up the hop dialog.
> python hop.py Screw Holder Bottom.stl
The hop tool is parsing the file:
Screw Holder Bottom.stl
..
The hop tool has created the file:
.. Screw Holder Bottom_hop.gcode
> python
Python 2.5.1 (r251:54863, Sep 22 2007, 01:43:31)
[GCC 4.2.1 (SUSE Linux)] on linux2
Type "help", "copyright", "credits" or "license" for more information.
>>> import hop
>>> hop.main()
This brings up the hop dialog.
>>> hop.writeOutput('Screw Holder Bottom.stl')
The hop tool is parsing the file:
Screw Holder Bottom.stl
..
The hop tool has created the file:
.. Screw Holder Bottom_hop.gcode

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Modules

``

__init__ fabmetheus_utilities.euclidean fabmetheus_utilities.fabmetheus_tools.fabmetheus_interpret | fabmetheus_utilities.gcodec math fabmetheus_utilities.settings | skeinforge_application.skeinforge_utilities.skeinforge_craft skeinforge_application.skeinforge_utilities.skeinforge_polyfile skeinforge_application.skeinforge_utilities.skeinforge_profile | sys

Classes

``

HopRepository
HopSkein

class HopRepository
`` | `A class to handle the hop settings.`

Methods defined here:

__init__(self)
  `Set the default settings, execute title & settings fileName.`

execute(self)
  `Hop button has been clicked.`

class HopSkein
`` | `A class to hop a skein of extrusions.`

Methods defined here:

__init__(self)

getCraftedGcode(self, gcodeText, hopRepository)
  `Parse gcode text and store the hop gcode.`

getHopLine(self, line)
  `Get hopped gcode line.`

isNextTravel(self)
  `Determine if there is another linear travel before the thread ends.`

parseInitialization(self, hopRepository)
  `Parse gcode initialization and store the parameters.`

parseLine(self, line)
  `Parse a gcode line and add it to the bevel gcode.`

Functions

``

getCraftedText(fileName, text, hopRepository=None)
  `Hop a gcode linear move text.`

getCraftedTextFromText(gcodeText, hopRepository=None)
  `Hop a gcode linear move text.`

getNewRepository()
  `Get the repository constructor.`

main()
  `Display the hop dialog.`

writeOutput(fileName='')
  `Hop a gcode linear move file. Chain hop the gcode if it is not already hopped. If no fileName is specified, hop the first unmodified gcode file in this folder.`

Data
`` |  | __author__ = 'Enrique Perez (perez_enrique@yahoo.com)' __date__ = '$Date: 2008/21/04 $' __license__ = 'GPL 3.0' absolute_import = _Feature((2, 5, 0, 'alpha', 1), (2, 7, 0, 'alpha', 0), 16384)

Author
`` |  | Enrique Perez (perez_enrique@yahoo.com)