#!/usr/bin/env python
-
'''
libhooke.py
This program is released under the GNU General Public License version 2.
'''
-
-
import libhookecurve as lhc
import scipy
import csv
HOOKE_VERSION=['0.8.3_devel', 'Seinei', '2008-04-16']
-WX_GOOD=['2.6','2.8']
-
+WX_GOOD=['2.6','2.8']
+
class PlaylistXML:
'''
This module allows for import/export of an XML playlist into/out of a list of HookeCurve objects
'''
-
+
def __init__(self):
-
+
self.playlist=None #the DOM object representing the playlist data structure
self.playpath=None #the path of the playlist XML file
self.plaything=None
self.hidden_attributes=['curve'] #This list contains hidden attributes that we don't want to go into the playlist.
-
+
def export(self, list_of_hooke_curves, generics):
'''
Creates an initial playlist from a list of files.
<element path="/my/file/path/"/ attribute="attribute">
<element path="...">
</playlist>
- '''
-
+ '''
+
#create the output playlist, a simple XML document
impl=xml.dom.minidom.getDOMImplementation()
#create the document DOM object and the root element
newdoc=impl.createDocument(None, "playlist",None)
top_element=newdoc.documentElement
-
+
#save generics variables
playlist_generics=newdoc.createElement("generics")
top_element.appendChild(playlist_generics)
for key in generics.keys():
newdoc.createAttribute(key)
playlist_generics.setAttribute(key,str(generics[key]))
-
+
#save curves and their attributes
for item in list_of_hooke_curves:
#playlist_element=newdoc.createElement("curve")
for key in item.__dict__:
if not (key in self.hidden_attributes):
newdoc.createAttribute(key)
- playlist_element.setAttribute(key,str(item.__dict__[key]))
-
+ playlist_element.setAttribute(key,str(item.__dict__[key]))
+
self.playlist=newdoc
-
+
def load(self,filename):
'''
loads a playlist file
'''
myplay=file(filename)
self.playpath=filename
-
+
#the following 3 lines are needed to strip newlines. otherwise, since newlines
#are XML elements too (why?), the parser would read them (and re-save them, multiplying
#newlines...)
the_file=myplay.read()
the_file_lines=the_file.split('\n')
the_file=''.join(the_file_lines)
-
- self.playlist=xml.dom.minidom.parseString(the_file)
-
+
+ self.playlist=xml.dom.minidom.parseString(the_file)
+
#inner parsing functions
def handlePlaylist(playlist):
list_of_files=playlist.getElementsByTagName("element")
generics=playlist.getElementsByTagName("generics")
return handleFiles(list_of_files), handleGenerics(generics)
-
+
def handleGenerics(generics):
generics_dict={}
if len(generics)==0:
return generics_dict
-
+
for attribute in generics[0].attributes.keys():
generics_dict[attribute]=generics[0].getAttribute(attribute)
return generics_dict
-
+
def handleFiles(list_of_files):
new_playlist=[]
for myfile in list_of_files:
for attribute in myfile.attributes.keys(): #extract attributes for the single curve
the_curve.__dict__[attribute]=myfile.getAttribute(attribute)
new_playlist.append(the_curve)
-
+
return new_playlist #this is the true thing returned at the end of this function...(FIXME: clarity)
-
+
return handlePlaylist(self.playlist)
-
+
def save(self,output_filename):
'''
except IOError:
print 'libhooke.py : Cannot save playlist. Wrong path or filename'
return
-
+
self.playlist.writexml(outfile,indent='\n')
outfile.close()
class HookeConfig:
'''
Handling of Hooke configuration file
-
+
Mostly based on the simple-yet-useful examples of the Python Library Reference
about xml.dom.minidom
-
+
FIXME: starting to look a mess, should require refactoring
'''
-
+
def __init__(self):
self.config={}
self.config['plugins']=[]
self.config['drivers']=[]
self.config['plotmanips']=[]
-
+
def load_config(self, filename):
myconfig=file(filename)
-
+
#the following 3 lines are needed to strip newlines. otherwise, since newlines
#are XML elements too, the parser would read them (and re-save them, multiplying
#newlines...)
the_file=myconfig.read()
the_file_lines=the_file.split('\n')
the_file=''.join(the_file_lines)
-
- self.config_tree=xml.dom.minidom.parseString(the_file)
-
+
+ self.config_tree=xml.dom.minidom.parseString(the_file)
+
def getText(nodelist):
#take the text from a nodelist
#from Python Library Reference 13.7.2
if node.nodeType == node.TEXT_NODE:
rc += node.data
return rc
-
+
def handleConfig(config):
display_elements=config.getElementsByTagName("display")
plugins_elements=config.getElementsByTagName("plugins")
handleWorkdir(workdir_elements)
handleDefaultlist(defaultlist_elements)
handlePlotmanip(plotmanip_elements)
-
+
def handleDisplay(display_elements):
for element in display_elements:
for attribute in element.attributes.keys():
self.config[attribute]=element.getAttribute(attribute)
-
+
def handlePlugins(plugins):
for plugin in plugins[0].childNodes:
try:
self.config['drivers'].append(str(driver.tagName))
except: #if we allow fancy formatting of xml, there is a text node, so tagName fails for it...
pass
-
+
def handlePlotmanip(plotmanips):
for plotmanip in plotmanips[0].childNodes:
try:
self.config['plotmanips'].append(str(plotmanip.tagName))
except: #if we allow fancy formatting of xml, there is a text node, so tagName fails for it...
pass
-
+
def handleWorkdir(workdir):
'''
default working directory
'''
wdir=getText(workdir[0].childNodes)
self.config['workdir']=wdir.strip()
-
+
def handleDefaultlist(defaultlist):
'''
default playlist
'''
dflist=getText(defaultlist[0].childNodes)
self.config['defaultlist']=dflist.strip()
-
+
handleConfig(self.config_tree)
#making items in the dictionary more machine-readable
for item in self.config.keys():
self.config[item]=None
else:
pass
-
+
return self.config
-
-
+
+
def save_config(self, config_filename):
print 'Not Implemented.'
- pass
+ pass
class ClickedPoint:
this class defines what a clicked point on the curve plot is
'''
def __init__(self):
-
+
self.is_marker=None #boolean ; decides if it is a marker
self.is_line_edge=None #boolean ; decides if it is the edge of a line (unused)
self.absolute_coords=(None,None) #(float,float) ; the absolute coordinates of the clicked point on the graph
self.graph_coords=(None,None) #(float,float) ; the coordinates of the plot that are nearest in X to the clicked point
self.index=None #integer ; the index of the clicked point with respect to the vector selected
self.dest=None #0 or 1 ; 0=top plot 1=bottom plot
-
-
+
+
def find_graph_coords_old(self, xvector, yvector):
'''
Given a clicked point on the plot, finds the nearest point in the dataset (in X) that
corresponds to the clicked point.
OLD & DEPRECATED - to be removed
'''
-
+
#FIXME: a general algorithm using min() is needed!
print '---DEPRECATED FIND_GRAPH_COORDS_OLD---'
best_index=0
best_dist=10**9 #should be more than enough given the scale
-
+
for index in scipy.arange(1,len(xvector),1):
dist=((self.absolute_coords[0]-xvector[index])**2)+(100*((self.absolute_coords[1]-yvector[index])))**2
#TODO, generalize? y coordinate is multiplied by 100 due to scale differences in the plot
if dist<best_dist:
best_index=index
best_dist=dist
-
+
self.index=best_index
self.graph_coords=(xvector[best_index],yvector[best_index])
return
-
+
def find_graph_coords(self,xvector,yvector):
'''
Given a clicked point on the plot, finds the nearest point in the dataset that
dists=[]
for index in scipy.arange(1,len(xvector),1):
dists.append(((self.absolute_coords[0]-xvector[index])**2)+((self.absolute_coords[1]-yvector[index])**2))
-
+
self.index=dists.index(min(dists))
self.graph_coords=(xvector[self.index],yvector[self.index])
#-----------------------------------------
-#CSV-HELPING FUNCTIONS
-
+#CSV-HELPING FUNCTIONS
+
def transposed2(lists, defval=0):
'''
transposes a list of lists, i.e. from [[a,b,c],[x,y,z]] to [[a,x],[b,y],[c,z]] without losing
'''
if not lists: return []
return map(lambda *row: [elem or defval for elem in row], *lists)
-
+
def csv_write_dictionary(f, data, sorting='COLUMNS'):
'''
Writes a CSV file from a dictionary, with keys as first column or row
Keys are in "random" order.
-
+
Keys should be strings
Values should be lists or other iterables
'''
writer.writerow(keys)
for item in t_values:
writer.writerow(item)
-
+
if sorting=='ROWS':
print 'Not implemented!' #FIXME: implement it.
-#-----------------------------------------
-
+#-----------------------------------------
+
def debug():
'''
debug stuff from latest rewrite of hooke_playlist.py
print confo.load_config('hooke.conf')
if __name__ == '__main__':
- debug()
\ No newline at end of file
+ debug()
projects / hooke.git / blobdiff