VCS Hints: Vector Editor Panel    


Access: via Vector Graphics Method Panel -> Attribute Set Name

The Vector Editor Panel displays the attribute set names and assignment values of the vector graphics method. The primary purpose of the vector graphics method is to display a vector plot of a 2D vector field. Vectors are located at the coordinate locations and point in the direction of the data vector field. Vector magnitudes are the product of data vector field lengths and a scaling factor.

How to Use the Vector Editor Panel

Changing the Map Projection:
Move the pointer over the `projection' menu button and press and hold the left mouse button. Then move the pointer over the desired map projection and release the left mouse button. Select the red `Apply' button (in upper right corner) to register changes.

Setting a List Name for Labels and Tick Marks:
Labels and tick marks are: `xticlabels#1', bottom prefixed list name for x-axis labels and ticks; `xticklabels#2', top prefixed list name for x-axis labels and ticks; `xmtics#1, left prefixed list name for x-axis minor ticks; xmtics#2, right prefixed list name for x-axis minor ticks; `yticlabels#1', left prefixed list name for y-axis labels and ticks; `yticlabels#2', right prefixed list name for y-axis labels and ticks; `ymtics#1', right prefixed list name for y-axis minor ticks; `ymtics#2', left prefixed list name for y-axis minor ticks. From the List Table Panel, copy and drop the new attribute set name into the yellow input text window (see associated Hints for copy and drop procedures).

Defining Data Space in Real-World Coordinates:
The data space defined in the picture template in normalized device coordinates is mapped to the real-world coordinates given: `datawc_x1', `datawc_x2', `datawc_y1', `datawc_y2'. A value of `1e+20' cues VCS to use the data coordinate values.

Converting the X-, Y-axis:
The x- and y-axis for the vector graphics method can be changed from linear (the default setting) to: log base 10 (log10), natural log (ln), exponential (exp), or area weighted (area_wt). Move the pointer over the `xaxisconvert' or 'yaxisconvert' menu button and press and hold the left mouse button. Then move the pointer over the desired axis transformation and release the left mouse button. Select the red `Apply' button to register changes.

Changing the Line Type:
To change the vector line type, access the (Tl) Line Table Panel (via Main Menu - `Basic' -> `Line Table (Tl)'). To copy a line type, move the pointer to the desired line attribute set name and click the middle mouse button. To drop, move the pointer to the cyan `Tl' input text window on the Vector Editor Panel and click the middle mouse button. Select the red `Apply' button to register changes.

Setting the Vector Scale Value:
Move the pointer to the `vector_scale' input text window and click the left mouse button. Enter the desired vector scale value.

Setting the Vector Alignment:
Move the pointer over the `vector_align' menu button and press and hold the left mouse button. Then move the pointer over the desired alignment: tail, center, head.

Setting the Vector Type:
Move the pointer to the `vector_type' menu button and press and hold the left mouse button. Then move the pointer over the desired vector type: wind barbs, arrow, or solid arrow.

Setting the Vector Reference:
The vector reference defines the size of the vector in response to the data. Move the pointer to the `ref_vector' input text window and click the left mouse button. Then enter the desired reference value. (A value of `1.e+20' cues VCS to select the reference vector.) Select the red `Apply' button to register changes.


Last update January 6, 1997. For further information, contact: Dean N. Williams (vcs@pcmdi.llnl.gov)
This page is maintained by Anna McCravy (mccravy@pcmdi.llnl.gov)
 and LLNL Disclaimers

UCRL-ID-120121