Setting up the Live View

To open the Live View Setup dialog box, select Edit | Graphic Display window | Live View Setup from the menu, or right-click within the Vision tab and select Setup from the resulting shortcut menu.

The Live View Setup option is only available if the Vision option is enabled on your LMS license or portlock.

The Live Image Setup dialog box allows you to configure how the image appears in the Vision tab of the Graphic Display window. It contains these controls:

Scale to Fit - This check box determines whether PC-DMIS scales the display of the part to fit within the limits of the Graphic Display window. This check box is only available on some optical machines.

When you select the Enabled check box, you can press the Live View Freeze button to toggle it on and off at measurement routine execution time. This action freezes the measured points on the screen until the next points are available for display.

This is also useful for machines where "image tear" occurs during stage movements.

AutoShutter detects when a target (which may consist of multiple ROIs) is ready to measure points. The three criteria for readiness are:

When these criteria are satisfied, PC-DMIS automatically takes the points and proceeds to the next ROI.

PC-DMIS uses the options in this area when you select AutoShutter

from the bottom of the Vision tab (see "Live View Controls").

AutoShutter does not fire for DCC mode features with Manual Pre-Position enabled.

Active - This option determines when the software uses the AutoShutter capability to measure features. The options are: Always, After Partial Alignment, or After Full Alignment.

Movement settle time (seconds) - This box specifies a settle time (in seconds) before point detection takes place. This settle time begins once the current ROI that was not entirely in the FOV has entirely entered the FOV. You can use this field to slightly delay the automatic point detection to review and improve ROI placement within the FOV.

Measure settle time (seconds) - This box specifies a settle time (in seconds) before point detection for the FIRST ROI of a feature, even if this ROI is already entirely in the FOV. You can use this field to slightly delay the automatic detection to review and improve ROI placement within the FOV. This value is only applied to the first ROI of a feature.

The Movement Detected settle is the dominate value if it conflicts with the Measure Feature settle value.

The Feature Compass guides you to move the stage to get the next feature into the Field Of View by showing an arrow and a distance to move.

Active - Determines when the software uses the Feature Compass capability to measure features. The options are: Always, After Partial Alignment, or After Full Alignment.

PC-DMIS applies the Active option when you select the Feature Compass

from the bottom of the Vision tab (see "Live View Controls").

To speed up the execution, the MultiCapture functionality causes the software to look at features ahead in the measurement routine and create groups that PC-DMIS can execute within a single camera picture (Live View). The software bundles them together and executes them simultaneously. Mark the Enabled check box to use this functionality.

PC-DMIS marks this check box by default to speed up measurement. Clear this check box when you want more visual data on each feature as it is measured.

The MultiCapture area of the dialog box is only active in DCC mode or in Manual mode when the AutoShutter conditions have been met.

There are several levels of conditions that your measurement routine must meet in order to execute features in MultiCapture.

Primary Feature: This is the first feature MultiCapture finds.
Other Features: You must include any additional features in the measurement routine in the same MultiCapture.

MultiCapture requirements for the primary (or other) feature:

It can be executed in a single FOV.
It is not a relative feature.
It has no Sensilight.
It has no Focus.
It has no Template Match.
It has Automatic Target type.
All targets inside of a feature have the same illumination.
The number of ROI's do not exceed the limit. The current limit is 150.

Additional requirement for other features:

The features do not use expression in their Theo or Targ values.
The features have not been executed.
There are no break points set on any of the features.
The features have the approximate magnification, surface vector, Z value, and RGB factor as the primary feature.
The features have the same relative scope level (in the same loop level or the same subroutine) as the primary feature.
The features have the same Illumination setting as the primary feature.
The combined area can fit in a single FOV.

Additional condition required for 2D Profile feature:

You must first run the 2D Profile feature in Master mode.

The MultiCapture feature collection process stops when it encounters any of these commands:

Any type of Alignment command
Move Rotary Table
Move Point
Load Fixture
Load Machine
Load Probe Data
Load Probe Changer Data
Probe Compensation
Set Active Tip
Comment
Manual Mode

For example, suppose you have five edge point features that all fit within a single Live View and you have MultiCapture enabled. Instead of the machine measuring the five edge point features separately during execution, PC-DMIS displays a MultiCapture overlay for the entire feature set. This overlay provides information about what features are in the group and how many. PC-DMIS then executes them simultaneously as if they were a single feature.

The sample MultiCapture overlay here shows five edge points combined into a single grouping. The overlay provides the following information:

Select the Enabled check box in this section to enable the Manual Targets Single Click Execution feature. When enabled at execution time, PC-DMIS displays a larger black and white crosshair cursor

on the Live Image View display. Instead of dragging and dropping a manual target to a desired location on a feature, position the crosshair to the targeted location, and click the left mouse button. If you enable Snap Mouse Click to Edge, PC-DMIS automatically performs edge detection to snap the crosshair to the edge.

When you mark the Enabled check box and you are programming features in the Vision tab, PC-DMIS Vision detects the nearest edge and snaps the target anchor points to that edge. The value in the Range (pixels) box indicates the distance the software searches for this edge. If you have a blurred edge that you cannot bring into focus, you may find it necessary to not use snap to edge to reliably specify anchor points when programming a feature. This also applies at execution time for Manual Targets.

The Snap Mouse Click to Edge

found at the bottom of the Vision tab also enables or disables this functionality (see "Live View Controls").

This area lets you set the properties for various overlay elements that can appear in the Vision tab.

Show textual information - This check box show or hides any live image informational overlays that appear inside the Vision tab.

Show coordinates - This check box determines whether or not PC-DMIS displays coordinates inside the Vision tab.

Absolute coordinates - When you select this check box, the software displays the overlay coordinates as absolute values. For absolute values, the top-left and bottom-right coordinates show the actual position of those corner points in the current machine coordinates. If you do not select this option, the software displays relative values. For relative values, the top-left corner is shown as 0,0, and the bottom-right corner shows the length and width of the FOV in the current units.

Use part coordinates - This check box determines whether PC-DMIS displays coordinates in part coordinates.

Show scale marker - This check box displays a scale marker in the bottom-left side of the Vision tab.

Show features - When you select this check box, PC-DMIS shows the features which are partially or completely in the Live Image View display area. The features must have approximately the same vector and Z position as the camera image.

Overlay - This list allows you to select the color used for most of the overlay graphics and text on the Vision tab. This affects probe hits, targets, gages, and textual information for FOV coordinates, magnification, and focus. The default color is red.

Nominal line - This list allows you to select the color to use for the nominal line in the targets.

Highlight saturated pixels - When you select this check box, PC-DMIS highlights saturated pixels on the Live Image View. This makes those pixels more visible. The highlighted pixels are those where the illumination intensity is above the defined threshold.

Flash - This check box determines whether the highlighted saturated pixels flash.

Highlight - This list allows you to select the color to use to highlight the saturated pixels.

Threshold (%) - This slider changes the illumination intensity value. PC-DMIS considers pixels above this value to be saturated.

When PC-DMIS executes a vision feature, it draws the detected edge points in the Vision tab. While these points are shown only for an instant during execution, they are not quickly erased when editing and testing features. This area lets you control the size and shape of the point overlays drawn in the Vision tab.

Symbol - This list determines how PC-DMIS displays point symbols. The options include Square dot, Round dot, and None (to not draw points at all).

Diameter (pixels) - This list determines the size of the displayed square or round-dot point symbol.

Setting Up the Live View