ALLYCAD USER GUIDE - AllYCAD - #301

Some functions require you to select something before they will work. While most of these functions will remind you about this, some will not. For example, if you click on the [NO] button in answer to the question Stretch everything (else just selected) in Stretch, and you have not selected anything, nothing will happen.

Some functions, for example the Align ► To Grid option, require you create a grid before they will work.

Many of the functions in the Geometry Menu will only work with other geometry. For example, the function Line Tan C will only draw a line tangent to a geometry circle. If you need to draw a line tangent to a solid circle, use a Tangent Snap or project the circle to geometry first using Geometry ► Make Geometry.

Check the correct operation of the function.

If the drawing has been imported as a DXF or DWG file, it is likely that entities that look like lines and arcs are in fact polylines. To check whether an entity is a polyline, use Tools ► Query Entity.

Some functions, like Snip, Trim and Fillet, won't work on polylines. To get them to work, you have to use Objects ► Explode Objects to explode the polylines into lines and arcs. You may need to use Explode Objects several times to break the polylines down completely. See Explode Objects in the Objects Menu.

If you can't change the colour of entities on a drawing that has been imported as a DXF or DWG file, this is also likely to be because the entities are polylines. AllyCAD's line and arc editing functions won't work on polylines. To change their colour, you can explode the polylines as described above. Alternatively, double click on individual polylines to change their colour, or use Settings ► Set Polyline Defaults to change the colour of many polylines at once.

This is due to duplicate entities. See above.