I am using PyQGIS APIs to develop a standalone application which currently display's map data layers on QgsMapCanvas from .shp, .tif, .dgn files.I am able to do it for .shp and .tif but not for .dgnBasically, my .dgn file contains some cities marked as points and some boundaries when i import the .dgn file in QGIS it asks me to select two elements, that are- LineStrings(boundaries) and Points(cities).dgn file when opened in my standalone application can only load one element i.e the boundaries(Linestrings).How can i resolve this issue programatically using PyQGIS? Also, what type of format is .dgn raster or vector(I know it's a CAD file but it oughta' be one of raster/vector too).
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