viewerwidget¶
Viewer Widget. Allows display of images, zooming and panning etc.
- class tuiview.viewerwidget.ActiveToolChangedInfo(newTool, senderid)[source]¶
Container class for info pass in the activeToolChanged signal
- class tuiview.viewerwidget.GeolinkInfo(senderid, easting, northing, metresperwinpix=0)[source]¶
Container class for the information passed in the geolinkMove and geolinkQueryPoint signals.
- class tuiview.viewerwidget.QueryInfo(easting, northing, column, row, long, lat, data, layer, modifiers)[source]¶
Container class for the information passed in the locationSelected signal.
- class tuiview.viewerwidget.ViewerWidget(*args: Any, **kwargs: Any)[source]¶
The main ViewerWidget class. Should be embeddable in other applications. See the open() function for loading images.
- activeToolChanged¶
active tool has changed
alias of
ActiveToolChangedInfo
- geolinkMove¶
viewer moved, geolink the others
alias of
GeolinkInfo
- geolinkQueryPoint¶
viewer queried
alias of
GeolinkInfo
- polygonCollected¶
polygon has been collected
alias of
PolygonToolInfo
- polylineCollected¶
line has been collected
alias of
PolylineToolInfo
- vectorLocationSelected¶
a location on a vector as been selected
alias of
list
- addLayersFromJSONFile(fileobj, nlayers)[source]¶
Get the layer manager to read all the layer descriptions from fileobj and load these layers into this widget.
- addRasterLayer(gdalDataset, stretch, lut=None, ignoreProjectionMismatch=False, quiet=False)[source]¶
Add the given dataset to the stack of images being displayed as a raster layer
- addVectorFeatureLayer(ogrDataSource, ogrLayer, ogrFeature, color=None, quiet=None)[source]¶
Just a single feature vector
- addVectorLayer(ogrDataSource, ogrLayer, color=None, resultSet=False, origSQL=None, label=None, quiet=False)[source]¶
Add the vector given by the ogrDataSource and its dependent ogrLayer to the stack of images.
- doGeolinkMove(easting, northing, metresperwinpix)[source]¶
Call this when widget needs to be moved because of geolinking event.
- doGeolinkQueryPoint(easting, northing)[source]¶
Call this when the widget query point has been moved in another viewer and should be updated in this one if the query tool is active.
- getGeolinkInfo()[source]¶
Called by emitGeolinkMoved and anything else that needs the current GeolinkInfo
- highlightValues(color, selectionArray=None)[source]¶
Applies a QColor to the LUT where selectionArray == True to the top layer and redraws. Pass None to reset
- mouseMoveEvent(event)[source]¶
Mouse has been moved while dragging. If in zoom/pan mode we need to do something here.
- mousePressEvent(event)[source]¶
Mouse has been clicked down if we are in zoom/pan mode we need to start doing stuff here
- mouseReleaseEvent(event)[source]¶
Mouse has been released, if we are in zoom/pan mode we do stuff here.
- newQueryPoint(easting=None, northing=None, dspY=None, dspX=None, column=None, row=None, lat=None, long=None, modifiers=None)[source]¶
This viewer has recorded a new query point. Or user has entered new coords in querywindow.
Calls updateQueryPoint and emits the geolinkQueryPoint signal
pass either [easting and northing], [dspX,dspY], [column, row] or [long, lat]
- newVectorQueryPoint(dspX, dspY, modifiers=None)[source]¶
New vector query point. Does the spatial query and emits the vectorLocationSelected signal with the results
- paintEvent(event)[source]¶
Viewport needs to be redrawn. Assume that each layer’s image is current (as created by getImage()) we can just draw it with QPainter
- setActiveTool(tool, senderid)[source]¶
Set active tool (one of VIEWER_TOOL_*). pass VIEWER_TOOL_NONE to disable pass the id() of the calling object. This is passed around in the activeToolChanged signal so GUI elements can recognise who asked for the change
- setColorTableLookup(lookupArray=None, colName=None, surrogateLUT=None, surrogateName=None)[source]¶
Uses the supplied lookupArray to look up image data before indexing into color table in the top layer and redraws. Pass None to reset.
- setGeolinkFollowExtentAction(followExtent)[source]¶
Set whether we are following geolink extent of just center
- setNewStretch(newstretch, layer, local=False)[source]¶
Change the stretch being applied to the current data
- setQueryOnlyDisplayed(queryOnlyDisplayed)[source]¶
set whether we are only querying displayed layers (True) or all (False)
- setQueryPoint(senderid, easting, northing, color, size=None, cursor=None)[source]¶
Sets/Updates query point keyed on the id() of the sender
- timeseriesBackward()[source]¶
Assume images are a stacked timeseries oldest to newest. Turn on the previous one to the current topmost displayed
- timeseriesForward()[source]¶
Assume images are a stacked timeseries oldest to newest. Turn off the current topmost displayed
- updateQueryPoint(easting, northing, column, row, long, lat, modifiers)[source]¶
Map has been clicked, get the value and emit a locationSelected signal. Called by newQueryPoint or when a geolinkQueryPoint signal has been received.
- updateScrollBars()[source]¶
Update the scroll bars to accurately show where we are relative to the full extent
- wheelEvent(event)[source]¶
User has used mouse wheel to zoom in/out or pan depending on defined preference
- zoomFullExtent()[source]¶
Resets the zoom to full extent - should be the same as when file was opened.
- zoomNativeResolution()[source]¶
Sets the zoom to native resolution wherever the current viewport is centered
- layerAdded¶
layer added
- showStatusMessage = 'QString'¶
show new status message