Current Help System: PC-DMIS Vision (View Core Help)

#### Setting up the Live View

Live View Setup dialog box - Manual Mode

The Live View Setup dialog box appears if you select the
Edit | Graphics Display Window | Live View Setup menu or if you right click within the Live View tab and select Setup from the resulting shortcut menu.

This option is only available if Vision is programmed on your Port Lock.

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

Scale to Fit - This check box determines whether or not the display of the part should be scaled to within the limits of the Graphics Window.

Auto freeze frame

When you mark the Enabled check box PC-DMIS will freeze measured points on the screen at program execution time. This lasts until the until the next points are available for display. This is useful for machines where “image tear” occurs during stage movements.

MultiCapture

In order to speed up execution, the MultiCapture functionality causes the software to look at features ahead in the part program and create groups which can be executed within a single camera picture (Live View). These are bundled together and executed simultaneously. This functionality will be used when you mark the Enabled check box.

PC-DMIS marks this check box by default. Most of the time you will probably want this enabled since it speeds up measurement. But there may be times when you want more visual data on each feature as it is measured. In those cases, you can clear this check box.

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

So, 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 will display a MultiCapture overlay for the feature set as a whole, providing information about what features are in the group and how many. They will all then execute simultaneously, as if one feature were being executed.

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

- A - The MultiCapture message lets you know you are in MultiCapture mode. It displays the total number of features to be measured in the current grouping and the primary feature in that grouping.

- B - This displays all the features within the MultiCapture region that will be measured.

- C - This dotted rectangular box is the MultiCapture region. It bounds all the features for the current grouping.

- D - These numbers provide the XYZ coordinates for the top-left and bottom-right corners of the MultiCapture region.

Snap to edge

When you mark the Enabled check box, PC-DMIS Vision will detect the nearest edge and snap target anchor points to that edge when programming features in the Live View tab. 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 to Edge Toggle found at the bottom of the Live View also enables or disables this functionality (See "Live View Controls").

AutoShutter

AutoShutter detects when a target (which may consist of multiple ROIs) is ready to measure points. The three criteria for readiness are: the ROI is entirely within the FOV, the stage has stopped movement, and the user-defined delays have elapsed. When these criteria are satisfied, PC-DMIS automatically takes the points, and proceeds to the next ROI.

The options in this area are used when AutoShutter Toggle is selected at the bottom of the Live View (See "Live View Controls").

Note: AutoShutter does not fire for DCC mode features with enabled Manual Preposition.

Active: Determines when the, AutoShutter capability is used to measure features: Always, After Partial Alignment and After Full Alignment

Movement settle time (seconds): This field specifies a settle time (in seconds) before point detection firing after the current ROI that was not entirely in the FOV has entirely entered the FOV. The user may use this field to slightly delay the automatic firing to review/improve ROI placement within the FOV.

Measure settle time (seconds) – This field 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. The user may use this field to slightly delay the automatic firing to review/improve ROI placement within the FOV. This value is only applied to the first ROI of a feature.

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

Compass

Note: The Compass features are only available in Manual Mode.

This will guide the operator 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 Compass capability is used to measure features: Always, After Partial Alignment and After Full Alignment

The Active option is applied when Compass Toggle is selected at the bottom of the Live View (See "Live View Controls").

Overlay Properties

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

Show textual information: This check box show or hides the various live image overlay information that appears inside the Live View tab.

Show coordinates: This check box determines whether or not coordinates are displayed inside the Live View tab.

Absolute coordinates: When this check box is selected, the overlaid coordinates are displayed as absolute values. For absolute values, t he top-left and bottom-right coordinates show the actual position of those corner points in the current machine coordinates. When this option is not selected, relative values are displayed. 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 current units.

Use part coordinates: This check box determines whether or not the coordinates are displayed in part coordinates or machine coordinates in the Live View tab and in the Magnification tab of the Probe Toolbox.

Font Size: This slider changes the font size of any textual overlays.

Show scale marker: This displays a scale marker in the bottom left side of the Live View tab.

Crosshair: This list contains three options None, Small, or Large. If you choose Large, the crosshair is extended to all sides of the Live View tab. If you choose Small, the crosshair is displayed as a small plus sign in the middle of the Live View. If you choose None, no cross hair is displayed.

Large Crosshair | Small Crosshair

Overlay: This list allows you to select the color used for most of the overlayed graphics and text on the Live View tab. This affects probe hits, targets, gages, as well as textual information for FOV coordinates, magnification, and focus. The default color is red.

Nominal line: This list allows you to select the color used for the nominal line in the targets.

Point Properties

When PC-DMIS executes a vision feature, it draws the detected edge points in the Live View 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 Live View tab.

Symbol: This list determines how point symbols are displayed. The options include Square dot, Round dot, or None (to not draw points at all).

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