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Creating spokes radiating around a central point is certainly doable in Qgis 2.1 and Python. Creating radial lines from a point Here's some python code which will shows how to create radial lines, given the name of a point layer, the id of the point the name of a line layer to receive the 'spokes'. It creates 360 lines, a degree apart, centered on ...


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UPDATE: I think I've resolved this! The key is in symbolizing my lines of bearing as overlapping polar Vector Field markers. I symbolized my lines of bearing as points from a text-delimited layer, then turned the points into lines by changing the symbol layer type to a Vector Field marker. I set the the Vector type to polar, which allowed me to set my ...


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It seems that the shapefiles are locked. In ArcGis 10.x if a shapefile is opened (in ArcMap or ArcCatalog..), ArcGis automatically creates a file with the same name and pcname.numbers.sr.lock This prevent data as shapefiles to be edited if opened in multiple mxds or ArcCatalog in example. Try to open a new and empty mxd then run the merge between the two, ...


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In the dialog box asking you which feature's attributes to keep, uncheck the "Merge into a single COGO line" box.


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My solution is a GRASS GIS v.select iteration. So I get full line-shapes for each polygon, without getting self-intersection problems.


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I have used an arrow symbol as: SYMBOL NAME "arrow" TYPE vector FILLED true POINTS 0 0.4 3 0.4 3 0 5 0.8 3 1.6 3 1.2 0 1.2 0 0.4 END # POINTS ANCHORPOINT 1 0.5 END # SYMBOL This style adds an arrowhead to endpoints of lines ...



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