Particle Trace

Particle Trace


Overview
Generates particle animation based on 2 component or 3 component vector data. The shape of the particle is a diamond shape (8 surfaces). The direction in which the particles are advected is determined by calculating stream lines in the neighborhood of the defined starting point. Then, particles are advected along the stream lines.


Parameters
Visible
switches on and off the display of particles.

Reset
resets all parameters.

Save MVG
saves data in an MVG file.

Help
displays help

Select Data
Selects the data to be distributed in the X, Y (Z) directions. Data components are in the X, Y and Z directions starting from the top in order. Further, the number of components should be at least two or three.

display plane
displays the initial slice plane where the particles are advected.

plane - displays the slice plane with transparency.

mesh - displays the slice plane using mesh lines with transparency .

Rot
displays rotation parameters.
rot_x - rotates the starting slice plane about the X axis.

rot_y - rotates the starting slice plane about the Y axis.

rot_z - rotates the starting slice plane about the Z axis.

Trans
displays translation parameters.

trans_x - moves the slice plane along the X axis.

trans_y - moves the slice plane along the Y axis.

trans_z - moves the slice plane along the Z axis.

plane_scale_X
sets the scale values of the starting slice plane in the X direction.

plane_scale_Y
sets the scale values of the starting slice plane in the Y direction.

dim_X
sets the number of cells in the X direction.

dim_Y
sets the number of cells in the Y direction.

set_plane_center
locates the slice plane vertically at the center of the Z axis.

Operation buttons

- Reset resets the system to the initial state (of time).

- Stop stops particle advection.

- Play plays back the advection once.

- Cycle plays back cyclically. When the end point is reached, the system goes back to the starting point and this is done repeatedly.

color
cells are colored based on the vector values.

glyph scale
sets the size of the glyph.

start time
Defines the start time at which particle advection begins along the stream lines.

end time
Defines the time at which particle advection ends.

step
The value by which to increment the time along the original streamline continue for each advection step.

N-segments
sets the number of integration steps used within one grid "cell" to compute the particle path.

Max-segments
sets the total number of integration steps.

order
sets the order of integration.

Display Trace
Drawing tailed line.



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