When you clip survey space, you limit the area of the page that the survey space objects can be drawn. Any part of any survey space object that lies outside the clip area is not drawn. The survey can be clipped to any survey space object. Usually, this is a rectangle or polyline you have drawn around the portion of the survey you want.
By default, all layers are clipped when you clip a drawing. But if you want finer control over the clipping, you can clip / unclip just the layers you want in the Layers dialog.
Consider clipping the contour layers around a parcel to clean up a topo drawing.
By default, TPC clips all survey space objects to the border of your drawing. This allows you to create title blocks and other paper space objects outside the border as needed.
When you choose a survey space object to clip the survey space to, TPC asks if you want to hide that object. Choose Yes to hide it or choose No to leave it visible. Most of the time, you will probably want to hide the clip object. TPC doesn't actually hide the object but does set the line type of the object to None.
Once hidden, the object can be dificult to select since it doesn't draw any lines. You can position the cursor near the visible clip limits of the drawing to select the object for editing or you can remove the clipping in which case TPC redraws the clip object with a solid line but de-activates it as the object to clip to. In other words, it becomes a regular survey space object with a solid line type.
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