### Constructing an Intersect Point

A point can be constructed between two valid features:

First Valid Feature | Second Valid Feature
Plane | Line, Cylinder, Cone, or Curve
Line | Plane, Sphere, Cone, Cylinder, Curve, Line, Circle, or Slot
Cylinder | Plane, Line, Cone, Cylinder, Circle, or Slot
Cone | Plane, Line, Cone, Cylinder, Circle, or Slot
Curve | Plane, Line
Sphere | Line
Circle | Line, Cone, Cylinder, Circle, or Slot

The point is created where the lines (centerlines) of the two features intersect or where a linear feature pierces a planar feature.

Constructing an Intersect Point from Two Lines | A - Point constructed from 2 lines (LINE1 and LINE2).

If you want to intersect or pierce a circle with a line, see "Constructing a Pierce Point".

To Construct an Intersect Point:

1. Access the Construct Point dialog box (Insert | Feature | Constructed | Point).

2. Select the Intersect option from the list of options.

3. Select two features of this type (circle, cone, cylinder, line, slot, curve, plane, sphere).

4. Click the Create button.

The Edit window command line for this option would read:
CONSTR/POINT,INTOF,feat_1,feat_2

If the two features do not intersect, the point is constructed midway between the two features at the apparent intersection. In other words, the intersect point is the mid-point of the shortest line connecting the two input features. In the following example, A indicates where the intersect point is constructed between LINE1 and LINE2:

Constructing an Intersect Point from Two Lines that do not Intersect

You can intersect two circle features and as long as they have the same (or very similar) vectors, PC-DMIS will generate a constructed point feature at one of the intersection points. If you switch the order of the selected input features in the Construct Point Mode dialog box, PC-DMIS will construct a point at the other intersection point.

You can intersect a line feature with a constructed curve. The line and curve are first projected onto the current workplane, where the intersection is computed. If there is no intersection, an error message is displayed. Even though there may be many intersection points, only the one closest to the start of the curve is reported. To get the other intersection points it may be possible to subdivide the curve and compute intersections on the subcurves.

Note: If you select a slot as one of your input features, PC-DMIS will use the slot centerline vector when constructing this point instead of the slot normal vector (in versions 3.2 and earlier PC-DMIS used the slot normal vector). If you want to use the older slot normal vector, you will need to modify the value for the UseLegacySlotVector entry in the PC-DMIS Settings Editor. For information on how to do this, see the "Modifying the Registry" section.