def OnQuery(self, event):
if self._check_time_itv_input() == False or\
self._check_space_input() == False:
return
self.current_selected = range(self.dbf.n_records)
self._filter_by_query_field()
self.query_date = None
self._filter_by_date_interval()
self._filter_by_tod()
self.query_data = self.gen_date_by_step()
if self.query_data == None or len(self.query_data) <= 1:
self.ShowMsgBox(
"LISA Trend Graph requires at least 2 time intervals, please reselect step-by parameters."
)
return
title = ""
if self.query_field.lower() != "all fields":
title = "(%s:%s)" % (self.query_field, self.query_range)
# LISA layer (only one)
lisa_layer = self.background_shps[self.background_shp_idx]
gi_widget = PlotWidget(
self.parent,
lisa_layer,
None, #data
SigTrendGraphLISA,
query_data=self.query_data,
size=(800, 650),
start=self._wxdate2pydate(self.itv_start_date.GetValue()),
end=self._wxdate2pydate(self.itv_end_date.GetValue()),
step_by=self.step_by,
step=self.step,
title=title)
gi_widget.Show()
def ShowSigTrendGraphLISA(self):
# self is Main.py
if not self.shapefiles or len(self.shapefiles) < 1:
return
shp_list = [shp.name for shp in self.shapefiles]
dlg = wx.SingleChoiceDialog(
self, 'Select a POINT or Polygon(with time field) shape file:',
'LISA Trend Graph', shp_list, wx.CHOICEDLG_STYLE)
if dlg.ShowModal() == wx.ID_OK:
idx = dlg.GetSelection()
shp = self.shapefiles[idx]
background_shapes = FilterShapeList(self.shapefiles, stars.SHP_POLYGON)
if shp.shape_type == stars.SHP_POINT:
# create Markov LISA from points
gi_dlg = SigTrendGraphLISAQueryDialog(
self,
"LISA Trend Graph:" + shp.name,
shp,
background_shps=background_shapes,
size=stars.DIALOG_SIZE_QUERY_MARKOV_LISA)
gi_dlg.Show()
elif shp.shape_type == stars.SHP_POLYGON:
# bring up a dialog and let user select
# the time field in POLYGON shape file
dbf_field_list = shp.dbf.header
timedlg = wx.MultiChoiceDialog(
self, 'Select TIME fields to generate LISA Trend Graph:',
'DBF fields view', dbf_field_list)
if timedlg.ShowModal() == wx.ID_OK:
selections = timedlg.GetSelections()
# compose lisa_data_dict
dbf = shp.dbf
lisa_data_dict = {}
count = 0
lbls = []
for idx in selections:
lisa_data_dict[count] = np.array(
dbf.by_col(dbf.header[idx]))
lbls.append(dbf.header[idx])
count += 1
gi_spacetime_widget = PlotWidget(self,
shp,
None,
SigTrendGraphLISA,
query_data=lisa_data_dict,
lbls=lbls,
size=(800, 650),
start=1,
end=count - 1,
step_by='',
step=1)
gi_spacetime_widget.Show()
timedlg.Destroy()
else:
self.ShowMsgBox(
"File type error. Should be a POINT or POLYGON shapefile.")
dlg.Destroy()
return
dlg.Destroy()
def OnQuery(self,event):
if self._check_space_input() == False or\
self._check_time_itv_input() == False:
return
self.current_selected = range(self.dbf.n_records)
self._filter_by_query_field()
# query_date is not available in Trend Graph case
self.query_date = None
self._filter_by_date_interval()
self._filter_by_tod()
self.query_data = self.gen_date_by_step()
if self.query_data== None:
self.ShowMsgBox("Querying dynamic data by time step could not be completed. Please respecify input parameters.")
return
background_shp, trend_data_dict = self.query_data
queryfield = "" if self.query_field_idx < 0 else self.query_field
queryrange = "" if self.query_range == None else ""
title = ""
if self.query_field.lower() != "all fields":
title = "(%s:%s)"%(self.query_field,self.query_range)
trendgraph_widget= PlotWidget(
self.parent,
background_shp,
trend_data_dict,
TrendGraph,
queryfield=queryfield,
queryrange=queryrange,
start=self.start_date,
end=self.end_date,
step_by=self.step_by,
step=self.step,
title=title
)
trendgraph_widget.Show()
self.btn_save.Enable(True)