D3PLOT 22.1

Edit Groups

The Edit groups tab allows users to edit the groups of streamlines.

	Select the first group
	Select the previous group
	Go to this existing group
	Select the next group
	Select the highest group that exists + 1.

Users can CREATE new groups, and MODIFY or DELETE existing groups.

The start points for a streamline group can generated by a POINT source or a LINE source.

POINT Source	Start points are equally spaced on a the surface of a sphere with a given RADIUS and CENTRE . If the model is a 2D analysis, start points are equally spaced in a circle with a given RADIUS and CENTRE . (In 2D, the position of start points within the circle depends on the local axis of element 1.)
LINE Source	Start points are equally spaced on a line between POINT 1 and POINT 2 , both the end points are start points.

The centre, or point 1 and point 2, can be input in different ways:

Use COORD	Input a co-ordinate in model space.
Use ELEMENT	Input an ICFD Volume element ID in the format Di/j where "i" is the domain ID and j is the element ID.
Use NODE	Input an ICFD Volume node ID in the format Di/j where "i" is the domain ID and j is the node ID, or PICK VISIBLE to use a screen pick.

Options in the Edit groups menu are:

SOURCE	Select to use a POINT or LINE source.
NUMBER	The number of start points generated for this streamline group. Note, any start points which are not inside the ICFD volume are not displayed.
USE COORD / ELEMENT / NODE	Select how to input the Center or Point 1 and Point 2 values.
PICK VISIBLE	For USE NODE use a screen pick.
CANCEL PICK	For USE NODE cancel a screen pick.
RADIUS	Set the radius of a POINT source.
SHOW IN	The windows the streamline group start points are used in.
COLOUR	The colour of the streamline group, used for Sh aded, Li ne or Hi dden plots.