Grid Measurement dialog

This dialog appears when you click the Grid Measurement button on either the Graybox dialog or the Define Bar Code dialog . Use it to define the location of graybox and software bar code grid evaluation regions and clip regions in your application.

The title of the Grid Measurement dialog depends on the operation you are performing:

Create New Grid dialog – This is the title when you do one of the following:
Enter a new output field, select the Graybox Tool or Bar Code Tool, and then select the Grid Measurement button.
Select an existing field or grid, select the Graybox Tool or Bar Code Tool, and then select the Grid Measurement button.
Have no grid selected, select the Graybox Tool or Bar Code Tool, and then select the Grid Measurement button.

You can then enter the Grid Measurement values for the new graybox or bar code grid.

Modify Grid Measurement dialog – This is the title when you do the following:
- Select a graybox or software bar code grid and then select, in order, the Edit Selected Grid button and the Grid Measurement button, in the Graybox dialog or in the Define Bar Code dialog.
- Have no grid selected, select the Graybox Tool or Bar Code Tool, draw a grid in the grid definition area, and then select the Grid Measurement button.

You can then modify the Grid Measurement values for the graybox or bar code grid.

View Grid Measurement dialog – This is the title when you select a graybox or software bar code grid and then select the Grid Measurement button, in the Graybox dialog or in the Define Bar Code dialog, without first selecting the Edit Selected Grid button. You can view the Grid Measurement values but you cannot modify them because the graybox or bar code grid is therefore not in edit mode.

TIP: If you are using an imaging scanner, you may find it more convenient to draw graybox and software bar code grid evaluation regions and clip regions directly in the grid definition area. See Creating a Graybox Grid and Bar Code Implementation for additional information.

Grid Location

This is reference information. The values in this area cannot be changed.

Field –shows the name of the field this graybox or software bar code grid is appended to.
Sheet –shows the sheet number on which this graybox or software bar code grid is located.
Side –shows the side of the sheet, Top or Bottom, on which this graybox or software bar code grid evaluate region is located. The side on which the clip region is located is not displayed.

Unit of Measurement

Select the measurement system used for defining the exact coordinates for location and size of the graybox or software bar code grid. The selection made here is used in the Evaluate Region and Clip Region, X and Y Region Position areas. In all cases, the origin point is the intersection of the leading edge and guide edge of the form.

NOTE for OpScan iNSIGHT 2/4 (with Imaging) Scanner Users:

As absolute Units of Measurement (.001 in and .01 mm) is an advanced feature of ScanTools Plus software, utilizing the full capabilities of OpScan iNSIGHT 2/4 (with Imaging) scanners, you should ensure that your scanner includes the advanced features in scanner Manufacturing Level ML013 or greater.

To verify your scanner Manufacturing Level, look at the serial number label on the back of the scanner and read the “ML” number.

If the ML number is less than ML013, call Scantron Customer Support at 800-338-5544 to arrange to have your scanner enhanced to this Manufacturing Level.

For International users, contact your local sales representative.

Select one of the following values:

Cell/TM Position – Read cell and timing mark numbers. Locations are measured to specified Cell/TM response position centers and then clip and evaluate regions are automatically enlarged by ScanTools to include complete OMR response positions.
.001 in – Thousandths of an inch. Locations are measured from the origin point in thousandths of an inch.
Hybrid .001 in – A combination of read cell and timing mark numbers and thousandths of an inch. Base locations are measured to specified Cell/TM response position centers and then clip and evaluate regions are enlarged by the amount you specify, defined in thousandths of an inch. When this is selected, an additional Hybrid control, Hybrid Offset, appears in this dialog.
.01 mm – Hundredths of a millimeter. Locations are measured from the origin point in hundredths of a millimeter.
Hybrid .01 mm – A combination of read cell and timing mark numbers and hundredths of a millimeter. Base locations are measured to specified Cell/TM response position centers and then clip and evaluate regions are enlarged by the amount you specify, defined in hundredths of a millimeter. When this is selected, an additional Hybrid control, Hybrid Offset, appears in this dialog.

CAUTION: There are special Unit of Measurement considerations for OpScan iNSIGHT 2/4 (with Imaging) scanners, forms without timing marks, iNAME scan-time archiving, OMR/merge horizontal adjustment, ScanFlex, and user exits. See information below regarding these SPECIAL CASES.

Clip and Evaluate Regions

Select the dependency of the Clip and Evaluate regions of the graybox or software bar code. The clip region is the graphic image clip of the graybox or software bar code and is used for viewing in the post-scan editor or for archiving as a separate graphic file. The evaluate region is the area of the graybox or software bar code that is evaluated at scan time for the presence of data. Graybox data presence is based on the Cutoff Value defined in the Graybox dialog. Software bar code data presence is based on decoding defined in the Define Bar Code dialog.

Clip Region Tracks Eval Region – the Clip Region is identical to whatever is entered in the Evaluate Region. You cannot enter values for the Clip Region.

Clip Region is Unique – each region is independent and can differ from the other. This choice allows you to enter different values for the Evaluate Region and Clip Region.

If the Clip Region is on the same sheet side as the Evaluate Region, you can define the position in this dialog or you can draw the Clip Region in the grid definition area. You can use any Unit of Measurement.
If the Clip Region is not on the same sheet side as the Evaluate Region, you must draw the Clip Region in the grid definition area. You must use Cell/TM or Hybrid Unit of Measurement.

CAUTION: If the clip region of an ICR/OCR graybox does not fully encompass the evaluate region, phantom clips will not be saved for that ICR/OCR graybox.

Evaluate Region

Region Position

Use these controls to define the X and Y coordinates for two opposite corners of the evaluate region of the graybox or software bar code. This defines the exact location and size of the evaluate region. For the Top side of a sheet, enter X and Y coordinate values for Upper Left and Lower Right corners. For the Bottom side of a sheet, enter X and Y coordinate values for the Upper Right and Lower Left corners.

X (Cell or .001" or .01 mm) – enter the value that represents the location of the corner of the evaluate region, along the X axis of the form. This is the read cell number, or number of inches or millimeters from the guide edge of the form. The unit of measure used depends on the Unit of Measurement selected. The minimum values are 1 for Cell and 0 (zero) for .001" or .01 mm. We recommend using minimum values of 1 for Cell, 50 for .001", and 120 for .01 mm.

Y (TM or .001" or .01 mm) – enter the value that represents the location of the corner of the evaluate region, along the Y axis of the form. This is the timing mark number, or number of inches or millimeters from the leading edge of the form. The unit of measure used depends on the Unit of Measurement selected. The minimum values are 1 for TM and 0 (zero) for .001" or .01 mm. We recommend using minimum values of 1 for TM, 65 for .001", and 155 for .01 mm.

Upper Left/Upper Right – these controls refer to which corner of the region is being defined.

Lower Right/Lower Left – these controls refer to which corner of the region is being defined.

CAUTION: If a value less than the recommended minimum value is used as a value for X or Y with .001" or .01 mm units of measurement, there is a possibility the image will contain black (and possibly garbage) from the buffer.

Hybrid Offset

This appears only if the Unit of Measurement selection is Hybrid .001 in or Hybrid .01 mm. Use this to enlarge the Evaluate Region. The base location of the region is defined by read cell and timing mark number, measured to response position centers. You can then enlarge the region in increments of either thousandths of an inch or hundredths of a millimeter on both the X and Y axes.

+X (.001" or .01 mm) – valid values are 0 – 1000 for thousandths of an inch, and 0 – 2540 for hundredths of a millimeter.

+Y (.001" or .01 mm) – valid values are 0 – 1000 for thousandths of an inch, and 0 – 2540 for hundredths of a millimeter.

Upper Left/Upper Right – these controls refer to which corner of the region is being enlarged.

Lower Right/Lower Left – these controls refer to which corner of the region is being enlarged.

Clip Region

Region Position

Use these controls to define the X and Y coordinates for two opposite corners of the clip region of the graybox or software bar code. This defines the exact location and size of the clip region. For the Top side of a sheet, enter X and Y coordinate values for Upper Left and Lower Right corners. For the Bottom side of a sheet, enter X and Y coordinate values for the Upper Right and Lower Left corners. This is not available if Clip Region Tracks Eval Region was selected, above.

X (Cell or .001" or .01 mm) – enter the value that represents the location of the corner of the clip region, along the X axis of the form. This is the read cell number, or number of inches or millimeters from the guide edge of the form. The unit of measure used depends on the Unit of Measurement selected. The minimum values are 1 for Cell and 0 (zero) for .001" or .01 mm. We recommend using minimum values of 1 for Cell, 50 for .001", and 120 for .01 mm.

Y (TM or .001" or .01 mm) – enter the value that represents the location of the corner of the clip region, along the Y axis of the form. This is the timing mark number, or number of inches or millimeters from the leading edge of the form. The unit of measure used depends on the Unit of Measurement selected. The minimum values are 1 for TM and 0 (zero) for .001" or .01 mm. We recommend using minimum values of 1 for TM, 65 for .001", and 155 for .01 mm.

Upper Left/Upper Right – these controls refer to which corner of the region is being defined.

Lower Right/Lower Left – these controls refer to which corner of the region is being defined.

Hybrid Offset

This appears only if the Unit of Measurement selection is Hybrid .001 in or Hybrid .01 mm. Use this to enlarge the Clip Region. The base location of the region is defined by read cell and timing mark number, measured to response position centers. You can then enlarge the region in increments of either thousandths of an inch or hundredths of a millimeter on both the X and Y axes.

+X (.001" or .01 mm) – valid values are 0 – 1000 for thousandths of an inch, and 0 – 2540 for hundredths of a millimeter.

+Y (.001" or .01 mm) – valid values are 0 – 1000 for thousandths of an inch, and 0 – 2540 for hundredths of a millimeter.

Upper Left/Upper Right – these controls refer to which corner of the region is being enlarged.

Lower Right/Lower Left – these controls refer to which corner of the region is being enlarged.

Create Button

This button is available in the Create New Grid dialog. Click Modify to accept the Grid Measurement settings and close the dialog.

Modify Button

This button is available in the Modify Grid Measurement dialog. Click Modify to accept the Grid Measurement settings and close the dialog.

Special Cases for Units of Measurement

OpScan iNSIGHT 2/4 (with Imaging) Scanners

As absolute Units of Measurement (.001 in and .01 mm) is an advanced feature of ScanTools Plus software, utilizing the full capabilities of OpScan iNSIGHT 2/4 (with Imaging) scanners, you should ensure that your scanner includes the advanced features in scanner Manufacturing Level ML013 or greater.

To verify your scanner Manufacturing Level, look at the serial number label on the back of the scanner and read the “ML” number.

If the ML number is less than ML013, call Scantron Customer Support at 800-338-5544 to arrange to have your scanner enhanced to this Manufacturing Level.

For International users, contact your local sales representative.

Forms Without Timing Marks

If you are using forms without timing marks, you must use an absolute Unit of Measurement (.001 in or .01 mm) to specify Evaluate Region and Clip Region locations. Cell/TM and Hybrid Units of Measurement cannot be used since they require the presence of timing marks. This includes grayboxes, software bar codes, and ICR/OCR grayboxes (if you have installed the RealTime Character Recognition optional component).

iNAME Scan-Time Archiving

If you are using iNAME image archiving, sparse clipping of grayboxes or software bar codes is not compatible with use of absolute (.001 in or .01 mm) or Hybrid units of measurement:

If any of the Selected Images to Archive specified in the iNAME Configuration are for sparse clips of grayboxes or software bar codes that use an absolute Unit of Measurement (.001 in or .01 mm), iNAME will fail at scan time ("Problem taking clips" error) and scanning will terminate.
If the Selected Image to Archive is for a sparse clip of a graybox or software bar code that uses Hybrid Units of Measurement, iNAME will use only the Cell/TM Position values for the clip. The Hybrid Offset values will not be used.

iNAME is compatible if the Selected Image to Archive is for a whole sheet clip of any sheet in an application that has a graybox or software bar code that uses an absolute (.001 in or .01 mm) or Hybrid Units of Measurement.

OMR/Merge Horizontal Adjustment

No horizontal adjustment is made for background form merging if you use absolute Units of Measurement (.001 in or .01 mm) for the locations of Standard Graybox, ICR/OCR Graybox, or software bar code Evaluate Regions and Clip Regions. You must use Cell/TM Position Units of Measurement.

ScanFlex

Use dropout colors for lines, boxes, and text in a form area that is resolved as a Standard Graybox, ICR/OCR Graybox, or software bar code. See ScanFlex Form Design Rules.
Define a larger Evaluate Region and Clip Region to make sure the entire area is included.

User Exits

User exits are not compatible with applications that contain grayboxes or software bar codes that use absolute (.001 in or .01 mm) or Hybrid units of measurement:

If the user exit examines a graybox or software bar code absolute Unit of Measurement (.001 in or .01 mm), it will interpret it as an invalid value.
If the user exit examines a graybox or software bar code Hybrid Unit of Measurement, it will use only the Cell/TM Position values for the clip. The Hybrid Offset values will not be used.

User exits are compatible with applications that contain grayboxes and software bar codes that use Cell/TM Unit of Measurement or that do not examine the graybox or software bar code Unit of Measurement values.