def translateForeign(self, txt):
if len(txt) > 0:
mlb = TrLib.ImportLabel(txt)
if mlb is not None and len(mlb) > 0:
self.ui.txt_mlb.setText(mlb)
descr = TrLib.DescribeLabel(mlb)
self.ui.lbl_system_info.setText("System: " + descr)
return
self.ui.lbl_system_info.setText("System: No translation")
self.ui.txt_mlb.setText("No translation")
def onMLB(self):
mlb = str(self.ui.txt_mlb.text())
if len(mlb) > 0:
descr = TrLib.DescribeLabel(mlb)
wkt = TrLib.ExportLabel(mlb, "WKT")
epsg = TrLib.ExportLabel(mlb, "EPSG")
proj4 = TrLib.ExportLabel(mlb, "PROJ4")
if wkt is not None and len(wkt) > 0:
self.ui.txt_wkt.setText(wkt)
else:
self.ui.txt_wkt.setText("No translation")
if epsg is not None and len(epsg) > 0:
self.ui.txt_epsg.setText(epsg)
else:
self.ui.txt_epsg.setText("No translation")
if proj4 is not None and len(proj4) > 0:
self.ui.txt_proj4.setText(proj4)
else:
self.ui.txt_proj4.setText("No translation")
self.ui.lbl_system_info.setText("System: " + descr)
def onBshlmSystemChanged(self, called_by_index_change=True):
if not self._handle_system_change:
return
self.clearOutput()
self.cache.is_valid = False # signal no valid output YET!
# will only be set to true if nothing goes wrong below....
self.cache.valid_label = False
is_custom = self.chb_bshlm_custom_ellipsoid.isChecked()
self.logBshlm("", clear=True)
if (is_custom):
self.cache.is_custom = True
self.cache.mlb = "custom"
ell_data, msg = WidgetUtils.getInput(
[self.txt_bshlm_axis, self.txt_bshlm_flattening], False)
if len(ell_data) != 2 or ell_data[0] < 0 or ell_data[1] < 0:
self.logBshlm("Bad ellipsoid data:\n%s" % msg, "red")
self.cache.valid_label = False
return
self.cache.axis = ell_data[0]
self.cache.flattening = ell_data[1]
self.cache.valid_label = True
else:
self.cache.is_custom = False
mlb = str(self.cb_bshlm_system.currentText())
if len(mlb) == 0:
return
self.cache.mlb = mlb
text = TrLib.DescribeLabel(mlb)
self.lbl_bshlm_description.setText("%s" % text)
labels = Minilabel.getSystemLabels(mlb)
if labels is not None:
for i in range(2):
self.input_labels_bshlm[i].setText(labels[i])
if Minilabel.isProjWeaklyDefined(mlb):
self.cache.proj_weakly_defined = True
self.logBshlm(
"INFO: distance and azimuths will be calculated in ED50 datum", "blue")
name, a, f = self.ed50_ellipsoid
self.cache.geo_mlb = "geo_ed50"
else:
try:
dtm = TrLib.GetDatum(mlb)
name, a, f = TrLib.GetEllipsoidParametersFromDatum(dtm)
self.cache.geo_mlb = TrLib.Convert2Geo(mlb)
except Exception, msg:
self.logBshlm("Invalid label:\n%s" % msg, "red")
if called_by_index_change: # if called by handler which adds label to list
self._handle_system_change = False
self.cb_bshlm_system.removeItem(
self.cb_bshlm_system.currentIndex())
self.cb_bshlm_system.setEditText(mlb)
self._handle_system_change = True
return
if name is not None:
self.txt_bshlm_ellipsoid.setText(name)
self.txt_bshlm_axis.setText("%.4f m" % a)
if 0 < f < 1:
sf = 1 / f
else:
sf = f
self.txt_bshlm_flattening.setText("%.8f" % sf)
self.cache.flattening = f
self.cache.axis = a
self.cache.ellipsoid = name
self.cache.valid_label = True
else:
self.logBshlm(
"Invalid input label - unable to set ellipsoid data...", "red")
if called_by_index_change: # if called by handler which adds label to list
self._handle_system_change = False
self.cb_bshlm_system.removeItem(
self.cb_bshlm_system.currentIndex())
self.cb_bshlm_system.setEditText(mlb)
self._handle_system_change = True
self.txt_bshlm_flattening.setText("")
self.txt_bshlm_axis.setText("")
self.cache.valid_label = False