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CAD tip CAD tip # 9405:

Question CAD 
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Q - question

Cannot multi-select polyline vertices above a raster image.

A - answer You cannot perform a multiple selection (with Shift) of vertices (grips) on polylines, e.g. isolines, displayed on top of an attached background raster image in AutoCAD Map 3D, Civil 3D and in Raster Design. Similarly you also cannot unselect objects from a selection set.

This is caused by a conflict with the raster image selection method using Shift-click inside an image. So disable this extended image selection with the MAPIOPTIONS command -on the General tab, uncheck the option "Shift + Left Click Image Select".

100% *  CAD 
22.8.2013    6748×  

See also:
Tip 12361:Seamlessly connected images by irregular clipping in AutoCAD (or LT).
Tip 12120:Double-click to edit raster images in DWG drawings.
Tip 11159:How to load an ECW v3 format image in AutoCAD?
Tip 9895:Missing or distorted parts of the ribbon or QAT panel.
Tip 9763:Lasso - new method for selecting objects in AutoCAD 2015.

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