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What is Pen Table

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What is Pen Table?

The pen table is ASCII text files that contain instructions for resymbolize the printed output of design files. The instructions are contained in sections within the pen table. Pen tables are created or modified automatically by using the Pen Table dialogs.

Resymbolization is the process of changing the characteristics of elements within a design file. When these changes are applied to printed output, the process is referred to as print resymbolization. Pen tables control print resymbolization.

Pen tables are used to change the characteristics of elements for printed output. For each pen table section, there are element selection criteria and a set of element output actions.

During the creation of printed output, the pen table tests for specific types of elements and characteristics. If such elements are found, the pen table will modify, enhance, or eliminate these elements and their characteristics. The testing criteria include:

  • Element type
  • Files
  • Weight
  • Color
  • Style
  • Level
  • Fill color
  • Class
  • MSLink number in an external database
  • Entity number in an external database
  • Change order or priority

Evaluation of elements is based on the specified criteria. Many elements, such as level, can have multiple values and ranges of values.

How to Create a Pen Table?

Below are the following steps to create a pen table:

Step 1: Open the Print dialog’s Resymbolization menu.

Step 2: And choose New Pen Table. Now the Create Pen Table File dialog opens.

Pen tables are stored in the directory defined by the MS_PENTABLE configuration variable (WorkSpacesExampleWorkSetsGeneralData directory).

Step 3: Type the pen table file name in the File name field.

Only the file name needs to be entered. By default, the extension “.tbl” is added.

Step 4: Now, click the Save button.

The modify Pen table dialog opens. The new pen table is loaded, and pen table processing is activated.

When you create a pen table, MicroStation automatically inserts a single section called NEW. This section provides the minimum structure required in the pen table. You can either rename this section or insert a new one and delete NEW.

What is Pen Table

Step 5: Under the Element Selection Criteria button, specify which element type(s) you want to modify. For example, suppose you want to modify lines that have weight 1.

Step 6: Under Type, select Line, and then click the Weight button and select 1 from the Select Weights dialog. Click OK to dismiss the Select Weights dialog.

Step 7: Click the Element Output Actions tab.

Specify the element output actions. For example, suppose you want lines with weight 1 to be printed in color with index value 1.

Step 8: Set the Color check box and then type in an index value of 1 or click the color icon and select color 1.

Step 9: Select File and Save.

Modifying Pen Tables

All operations concerning pen tables can be carried out from the Modify Pen Table dialog. Sections present in the currently loaded pen table are listed in the Element Section Processing Order list box. It’s File, and Edit menus can create and edit both new and existing pen tables.

Using settings in the Element Selection Criteria tab of the Modify Pen Table dialog, you can define the parameters for selecting elements in the design file. Having set the selection criteria, you can use the Element Output Actions tab settings to define the changes required for the printed output.

What is Pen Table

You can define an individual parameter for element selection and, based on that evaluation, specify modification of the identified element in the output file. Similarly, you can evaluate multiple parameters. However, when you specify more than one parameter, they are considered as a Boolean AND operation. Elements for which you specify multiple parameter values must meet all specified criteria before they are identified.

Icon Explanation
Element Section Processing Order It contains a list of section names and defining the order in which sections are processed.
When you edit a new pen table, a single section called NEW is inserted automatically.
You can rename this section or delete and insert one or more sections using the Edit menu.
Down Interchanges a selected section name in the Element Section Processing Order list box with the name immediately below it, assuming the selected name is not at the bottom of the list box.
Up Interchanges a selected section name in the Element Section Processing Order list box with the name immediately above it, assuming the selected name is not at the top of the list box.
Element Selection Criteria tab It contains controls used to specify selection criteria, unique to each section, against which elements are evaluated.
Element Output Actions tab If an element under evaluation matches a section’s element selection criteria, the actions specified using the controls on the element output action tab is executed.
Text Substitutions It opens the text substitutions dialog, which is used to generate substitution string pairs.

Each pair consists of an actual string and a replacement string.

Map Pen Colors It opens the pen table and map design colors to output pen symbology dialog, which is used to apply multiple output color and width symbology to different parts of the same element, based on the component colors.
Map Pen Weights It is used to map design weights to output width dialog, which is used to specify print output weights for each of the 32 weight values.
Pen Table Options It opens the pen table options dialog, which is used to control global pen table options.

How to Edit a Pen Table

You should have a created pen table attached to the design file and then follow the following steps:

Step 1: In the Print dialog, click on the Edit button.

What is Pen Table

Step 2: The Modify Pen Table dialog opens.

Note: If the configuration variable MS_PENTABLE_EDITOR is set to HIDE_MENU_ITEM, the Edit icon is removed from the Print dialog.

Pen Maps

Pen maps differ from Element Selection Criteria and Element Output Action pen table resymbolization in that they operate on individual vectors instead of fundamental elements.

This feature can be considered a user interface for color maps, with the data stored in the pen table instead of the .pltcfg file. Pen maps let you apply multiple output color and width symbology to different parts of the same element.

For example, an element with a multi-colored custom line style or an associative hatch linkage definition with a different color may be assigned unique widths for the specific colors. This is not possible using element-based output actions. The order of resymbolization is as follows:

  • First, any color maps defined in the .pltcfg file are applied.
  • Next, any pen maps in the pen table are applied. If desired, you may disable individual pen table pen maps to keep the .pltcfg
  • Finally, any RGB-color, grayscale, screening and millimeter-width actions in the pen table’s element-based output section are applied.

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