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You can create a point in space using various methods: by specifying coordinates – absolute or relative, by plotting an intersection point of two curves, by finding the center of the arc or solid’s center of gravity, by projecting the existing point on a curve, etc.
Using a certain object while plotting a point associates the point with this object.
Associativity ensures that a point belongs to the object (curve, surface) and changes its position when the shape or position of the object with which it is connected changes. Examples: if projection direction of the point on the curve was specified by an edge of the solid, changing the position of the edge will result in changing the position of projection; if the point was in the center of gravity of a component, changing the set or shape of its parts will result in changing the point position.
To remove associativity of the point with an object, edit the point by changing the current plotting method to the Point by coordinates method. The point position will not change, but associativity with objects will disappear. To restore associativity, edit the point again by selecting the previous plotting method and specifying the previous objects.
The point belongs to objects using the coordinate system. When plotting (editing) the point, you can select or create a coordinate system for its location. If a point is plotted by coordinates or by moving (i.e. by relative coordinates), you can enable saving the point position when changing the coordinate system, in this case coordinates will be recalculated. Points plotted in other ways are associated with objects, therefore, their position when changing the coordinate system cannot be changed.
You can run commands for plotting points both directly and when creating other objects, for the creation of which points are necessary. For example, you can create points when designing a construction axis rather than plotting points through which this construction axis goes in advance.
If you need to create points uniformly located on the curve or surface, or create points by coordinates recorded in the file, use the Commands for constructing point groups. In addition, you can create a group of points arranged in some way or another using the of array.
