Command Help link-multiple-strings

 

Command Name	Menu	Quick Key	Link to Command Table
link-multiple-strings		lms	Click here

Description

This command is used to create wireframe volumes by linking a sequence of perimeters (closed strings) in order (e.g. in the development of underground works), and can be used in many cases as an automatic method for creating bifurcated wireframes that, in the past, have given rise to a more complex procedure involving the design of tag (guide) strings (see trouser leg problem for an example). This method relies on the 3D Solid string linking algorithm.

Find out more about the algorithm behind the 3D Solid linking method...

How to Use

1. In the Current Objects toolbar, select or create a new current wireframe object.

2. Select all required perimeters and their relevant tag strings.

   In situations where filters have been used to display the required subset of strings and their tag strings, using e.g. the COLOUR attribute, additional but unwanted (for that linking run) tag strings may be displayed. In this case, the strings and only the relevant tag strings should be selected.

3. Run the command.

4. In the Link Multiple Strings dialog, define the required settings, click OK.

5. Check the wireframe against the strings.

Example

The example below shows how perimeters and their relevant tag strings are selected prior to using this command. In this case, the upper mineralization zone perimeters (green 5) and tag strings (red 2) have been filtered (filter:COLOUR=2 OR COLOUR=5) before linking.

The perimeters and tag strings are filtered using filter-strings:

 

The upper zone perimeters and their relevant tag strings are selected i.e. only the upper two tag strings are selected:

 

The resultant closed wireframe volume has been generated using only the selected strings:

 

 

Use this linking method when:  Joining a sequence of perimeters and generating end caps  e.g. a series of geological section perimeters or underground mining excavation profiles. As a quicker alternative to using a combination of link-strings and end-link for generating a wireframe volume. Creating a wireframe volume with bifurcated structures and with/without closed ends, with/without tag strings i.e. a typical trouser leg problem:

 

If no selected strings are found, a message will be displayed, and the command will need to be restarted after the required strings have been selected. The links take their color from the first string of each string-pair used for the linking. Various settings can be used to control linking, dependent on system-wide wireframe linking settings. seeWireframe Linking Settings. Tag strings can be used to control linking, see use-tag-switch.

	Related Topics
	Link Multiple Strings dialog Project Settings: Wireframe Linking link-3dsolid-align-switch link-3dsolid-collate-switch link-3dsolid-method-switch link-3dsolid-view-plane-switch link-3dsolid-interp-switch