When this method is selected, we show a warning icon with an
explanatory tooltip:
"This method will calculate misleading scales when the map extent
is not close to the equator, however it ensures that the scale
remains constant and does not change as the map is panned."
Always calculates the scale at the equator, regardless of the
actual visible map extent.
This method can be used to provide a consistent, static scale for
maps in geographic reference systems, regardless of the latitudes
actually visible in the map (permitting consistent appearance of
these maps when rendering relies on scale based visibility or
calculations). Otherwise a project in eg EPSG:4326 which uses
scale based visibility of layers and symbols will see layers
and features "randomly" disappear as the map is panned, even
though the user has not zoomed in or out of the map.
This method is only applicable when calculating scales with a
degree based reference system.
This adds some new customization associated with the introduction of
subsections indicator:
- it allows to display or hide them
- it allows to change the associated symbology
This adds support to display vertices lines over the profile graph to
display indicator at the location of the curve's vertices.
This is achieved with mainly 2 changes:
- `setSubsectionsSymbol()` allows to set the line symbol of the
vertical lines
- Call `renderSubsectionsIndicator` on the `QgsProfilePlotRenderer`
This adds support to display vertices lines over the profile graph to
display indicator at the location of the vertices of the trace.
This is mainly achieved by adding
`QgsElevationProfileCanvas::setSubsectionsSymbol()`. This method
allows to set the line symbol of the vertical lines. Then, It sets the
subsections symbol of the profile renderer of the plot item. It the
renderer does not exist yet, the subsections symbol is set when a new
profile renderer is created.
This adds support to display vertices lines over the profile graph to
display indicator at the location of the curve's vertices.
This is achieved with mainly 2 changes:
- `QgsProfilePlotRenderer::setSubsectionsSymbol()` allows to set the
line symbol of the vertical lines
- `renderSubsectionsIndicator` generates and renders the vertical
lines. It is called by `QgsProfilePlotRenderer::renderToImage()`.
