Crosshairs

Discover how to create dynamic Crosshair objects that represent reinforcement bars in cross section.

• Run the linCrosshairs command  and specify the bar diameter.
• Specify the spacing for the crosshairs and press Enter.
• Pick two points to place the array of crosshairs.
• Stretch the array of crosshairs to see what it does.

Because the array has been defined by spacing, the number of bars is increased/decreased to keep the spacing constant.

• Run the linCrosshairs command   again, but this time after entering the bar diameter choose the Number of bars option (Type N or press the ↓ arrow).
• Pick two points to place the array of crosshairs.
• Stretch the array of crosshairs to check what it does.

Because this second array has been defined by number of bars, the bar spacing is adjusted to keep the number of crosshairs constant.

• Double click the first array of crosshairs and change the Spacing Pattern property that defines the number rounding mechanism.
  • Exact, truncate: crosshairs are exactly spaced. Any remaining length in the array is disregarded.
  • Exact, fit last: crosshairs are exactly spaced and and extra crosshair is added at the end of the residual length, if present.
  • Exact, round up: crosshairs are exactly spaced. The number of crosshairs is rounded up to the closest number.
  • Approximate, best fit: the start and the end crosshairs are placed at the start and at the end grip point positions. The number of crosshairs in the array is chosen to obtain the closest spacing to the specified value.

AutoRebar 2024 has introduced a variety of commands to quickly create arrays of crosshairs in linear, circular and arc patterns: 
 Crosshair: creates a single crosshair object.
  linCrosshairs: creates a set of crosshairs arranged in a straight line.
 cirCrosshairs: creates a set of crosshairs arranged in a circle.
 arcCrosshairs: creates a set of crosshairs arranged in an arc.
 offLinCrosshairs: creates a set of offset-to-cover crosshairs arranged in a straight line.
 offCirCrosshairs: creates a set of offset-to-cover crosshairs arranged in a circle.
 offArcCrosshairs: creates a set of offset-to-cover crosshairs arranged in an arc.