CONSTRUCTION LINES

Purpose:

To toggle the construction geometry mode.

While the construction geometry mode is turned on, all basic geometry created by the user (lines, arcs, contours ) will defined as construction geometry.

Construction geometry will be assigned the following properties, regardless of the modal settings:

• Color: White

• Line Type: Short-Dashed

• Layer: -4

Furthermore, it is possible to create some useful compound construction geometry inside this function. The construction geometry mode will in this case not be affected.

Instructions:

1. In the Insert menu, click Construction Lines.

2. A multiple choice dialog will pop up, showing four alternatives:

   • Start

   • End

   • Def 0/90

   • Def 45/-45

3. Click Start to enter construction geometry mode (if not already turned on), or End to exit construction geometry mode (if currently turned on).

   The choice Def 0/90 will create one horizontal and one vertical line, while the choice Def 45/-45 will create two perpendicular lines at 45 and -45 degrees angle from horizontal respectively. In both cases, the intersection point is supplied by the user.

Options:

None.

Result:

The construction geometry might be turned on or off. Some compound construction geometry might be created.