Caliper

Computes measurements—such as distances, areas, and angles—based on results returned from other machine vision and image processing functions. The following controls are available.

• Step Name—Name to give the step.
• Geometric Feature—Geometric feature you want to compute based on points you located during a previous step.
  • Distance—Computes the distance between two selected points.
  • Mid Point—Finds the center of a segment defined by two selected points.
  • Perpendicular Projection—Locates the perpendicular projection of the third point you selected onto a line specified by the first two points you selected.
  • Lines Intersection—Locates the intersection of the lines specified by the first two points you select and the last two points you select.
  • Angle from Horizontal—Finds the counterclockwise angle from the horizontal axis to a line specified by two points.
  • Angle from Vertical—Finds the counterclockwise angle from the vertical axis to a line specified by two points.
  • Angle Defined by 3 Points—Finds the counterclockwise angle between three points, where the second point is the vertex.
  • Angle Defined by 4 Points—Finds the counterclockwise angle between the lines specified by the first two points you select and the last two points you select.
  • Bisecting Line—Finds the line bisecting the counterclockwise angle formed by two lines, where the first two points you select create the first line and the second two points you select create the second line.
  • Mid Line—Finds a line midway between the line specified by the first two points you select and the third point you select. The new line is parallel to the line specified by the first two points you select.
  • Center of Mass—Finds the center of mass of two or more points you select.
  • Area—Computes the area of a polygon, where the vertices are points you select.
  • Line Fit—Fits a straight line to a set of two or more points.
  • Circle Fit—Fits a circle to a set of three or more points.
  • Ellipse Fit—Fits an ellipse to a set of six or more points.
• Available Points—Points between which you want to find angles, lines, or mid points.