Streamlines

These properties control Streamline visualizations. For each property, the type of control and the values that can be assigned are listed, along with the property identifier and allowed values for use by the iTools Procedural Interface. For a description of how a particular control is used, refer to Property Controls

Table D-62: Property Settings for Streamlines
Interface: Property Name	Description	API: Property Identifier	API: Allowed Values
Grid units	String List: Set grid units type. Choose from: Not applicable Meters Degrees Default = Not applicable	GRID_UNITS	0 (Not applicable--default) 1 (Meters) 2 (Degrees)
Head size	Number: Head size. Enter value. Default = `1`	HEAD_SIZE	Floating point
Line thickness	Number: Line thickness level. Choose value 1 through 10. Default = `1`	THICK	A floating-point value between 1.0 (the default) and 10.0.
Automatic color	String List: Select color setting. Choose None, Magnitude, or Direction. Default = None	AUTO_COLOR	0 (None--default) 1 (Magnitude) 2 (Direction)
Color	Color: Color for arrows. Click to choose from the default color palette, or specify RGB values. Default = `[0,0,0]` (black)	COLOR	3D integer array of the form: [R, G, B] Each color value may range from 0 to 255.
Color palette	Color: By selecting Edit color table → Edit access the color table to manipulate vector color values Note - To edit the opacity only in the editor, uncheck the R, G, and B boxes in both the Modify and Display rows. Edit the remaining line by clicking on and dragging the line in the window. Click OK when finished.	None	None
Transparency	Number: Percent transparency. Move slider to change value. Default = `0`	TRANSPARENCY	Integer from 0 to 100.
Z value	Number: Z value of plane onto which to project the vector visualization. Edit the number to change the value. Note - If the Z value is zero then the vector visualization is considered to be 2D. If the Z value is nonzero, then the vector visualization is considered to be 3D, and the dataspace associated with this vector will be automatically switched to 3D. Default = `0`	ZVALUE	Floating point
Direction convention	String List: Choose direction convention. Select Polar, Meteorological, or Wind azimuths. Default = Polar (counterclockwise from X axis)	DIRECTION_CONVENTION	0 (Polar--default) 1 (Meteorological) 2 (Wind azimuths)
X stream particles	Number: Number of X stream particles. Choose value. Default = `25`	X_STREAMPARTICLES	Integer
Y stream particles	Number: Number of Y stream particles. Choose value. Default = `25`	Y_STREAMPARTICLES	Integer
Streamline steps	Number: Number of streamline steps. Choose value (minimum value is `2`). Default = `100`	STREAMLINE_NSTEPS	Integer
Streamline step size	Number: Numeric value for streamline step size. Enter value. Default = `0.2`	STREAMLINE_STEPSIZE	Floating point