Set Coordinate System Controls

Defines a coordinate system relative to a feature in the image. The following controls are available.

• Coordinate System Name—Name to give the coordinate system step.
• Mode—Directions in which you expect the object under inspection to move within the inspection images. The following options are available:
  • Horizontal Motion—When selected, Vision Assistant adjusts the region of interest positions for moves along the horizontal axis of the image for steps linked to this Set Coordinate System step. Select this mode when the position of the object under inspection is mechanically constrained so that the part cannot rotate or move vertically within the camera's field of view.
  • Vertical Motion—When selected, Vision Assistant adjusts the region of interest positions for moves along the vertical axis of the image for steps linked to this Set Coordinate System step. Select this mode when the position of the object under inspection is mechanically constrained so that the part cannot rotate or move horizontally within the camera's field of view.
  • Horizontal and Vertical Motion—When selected, Vision Assistant adjusts the region of interest positions for moves along the horizontal and vertical axes of the image for steps linked to this Set Coordinate System step. Select this mode when the position of the object under inspection is mechanically constrained so that the part cannot rotate within the camera's field of view.
  • Horizontal, Vertical, and Angular Motion—When selected, Vision Assistant adjusts the region of interest positions for moves along the horizontal and vertical axes as well as rotational changes for steps linked to this Set Coordinate System step. Select this mode when the position of the object under inspection is not mechanically constrained.

    Tip  This mode requires more time to reposition a region of interest than the other modes. If the object does not rotate in the field of view, select another mode that meets your application needs.

• Origin—Feature whose x-coordinate and y-coordinate locations are used as the origin of the coordinate system. You may also use the value of a point variable as the origin.
• X-Axis Angle—Feature whose angle measurement you want to use to represent the angle made by the x-axis of the coordinate system and the horizontal axis of the system. This control is available only if you select the Horizontal, Vertical, and Angular Motion mode.