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Process Help PLOTAR - plot arrows (vectors) based on X Y length and azimuth data |
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Process Name |
Menu Path |
Link to Command Table |
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PLOTAR |
Command line only |
Introduction
Generates a scatter plot file, where each data point is annotated with an arrow symbol plotted relative to the X,Y data point.
How to use
The input file should contain just one entry for each location. If it contains more than one, then there will be multiple plots at that location.
The length and direction of the arrows plotted are specified by the values of *LENFLD and *AZIFLD in the input data file.
Files, Fields and Parameters
Input Files
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Name |
Description |
I/O Status |
Required |
Type |
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IN |
Input data file. Must contain the fields defined by parameters XFLD, YFLD, LENFLD and AZIFLD. |
Input |
Yes |
Undefined |
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PROTO |
Plot prototype file. Must contain the fields X, Y, S1, S2, CODE (numeric, explicit) and XMIN, XMAX, YMIN, YMAX, XSCALE, YSCALE (numeric, implicit). If these last six values set in PROTO , then corresponding parameters need not be set. |
Input |
Yes |
Plot Prototype |
Output Files
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Name |
I/O Status |
Required |
Type |
Description |
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PLOT |
Output |
Yes |
Plot File |
Output plot file. |
Fields
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Name |
Description |
Source |
Required |
Type |
Default |
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XFLD |
Field to be plotted along X axis. |
IN |
Yes |
Numeric |
Undefined |
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YFLD |
Field to be plotted along Y axis. |
IN |
Yes |
Numeric |
Undefined |
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LENFLD |
Field controlling arrow length. |
IN |
Yes |
Numeric |
Undefined |
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AZIFLD |
Field controlling arrow direction in degrees clockwise from north. |
IN |
Yes |
Numeric |
Undefined |
Parameters
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Name |
Description |
Required |
Default |
Range |
Values |
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ASCALE |
Scale for LENFLD in data units per plotted millimetre. |
Yes |
Undefined |
Undefined |
Undefined | ||||||||
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DRAWHEAD |
Controls plotting of arrow head, 0 - No Arrow Head to be plotted. 1 - Arrow Head to be plotted. Default: (0) |
No |
0 |
0,1 |
0,1 |
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POSITION |
Position at which arrow is plotted relative to point X Y:
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No |
3 |
1,3 |
1,2,3 |
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HEADSIZE |
Length in millimetres of arrow head. Default: (3.0) |
No |
3.0 |
Undefined |
Undefined |
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HEADANGL |
Angle in degrees between left and right lines of arrow head. Default: (90) |
No |
90 |
1,90 |
Undefined |
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CHARSIZE |
Character size in millimeters. Default: (4) |
No |
4 |
Undefined |
Undefined |
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ASPRATIO |
Aspect ratio, width / hieght for characters. Default: (0.9) |
No |
0.9 |
Undefined |
Undefined |
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Colour [as 'pen' number] for plot. Default: (1) |
No |
1 |
1,64 |
Undefined |
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XMIN |
Minimum value of X for plot. Not required if the values XMIN, XMAX, YMIN, YMAX, XSCALE, YSCALE are already in the prototype. |
No |
Undefined |
Undefined |
Undefined |
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XMAX |
Maximum value of X for plot. Not required if the values XMIN, XMAX, YMIN, YMAX, XSCALE, YSCALE are already in the prototype. |
No |
Undefined |
Undefined |
Undefined |
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YMIN |
Minimum value of Y for plot. Not required if the values XMIN, XMAX, YMIN, YMAX, XSCALE, YSCALE are already in the prototype. |
No |
Undefined |
Undefined |
Undefined |
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YMAX |
Maximum value of Y for plot. Not required if the values XMIN, XMAX, YMIN, YMAX, XSCALE, YSCALE are already in the prototype. |
No |
Undefined |
Undefined |
Undefined |
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XSCALE |
X scale in user data units per millimeter. Not required if the values XMIN, XMAX, YMIN, YMAX, XSCALE, YSCALE are already in the prototype. |
No |
Undefined |
Undefined |
Undefined |
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YSCALE |
Y scale in user data units per millimeter. Not required if the values XMIN, XMAX, YMIN, YMAX, XSCALE, YSCALE are already in the prototype. |
No |
Undefined |
Undefined |
Undefined |
Notes
No additional notes.
Example
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!PLOTAR
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&IN(SEDREG),&PROTO(REGPROT),&PLOT(SEDREGA.P),*XFLD(EAST), *YFLD(NORTH),*LENFLD(CU),*AZIFLD(BRNG),@ASCALE=50, @DRAWHEAD=1,@POSITION=3,@HEADANGL=60 |
Error and Warning Messages
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Message |
Description |
Solution |
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>>> FATAL ERROR, BAD SCALE/RANGE COMBINATION(S) <<< >>> XMIN, XMAX = nnnnnnnnnn.nn nnnnnnnnn.nn >>> YMIN, YMAX = nnnnnnnnnn.nn nnnnnnnnn.nn >>> XSCALE, YSCALE = nnnnnnnnnn.nn nnnnnnnnn.nn |
Either insufficient scale information had been entered (at least two of XMIN, XMAX, XSCALE or Y equivalents must be entered either from the prototype of from parameters) or the combination given of XMIN, XMAX, and XSCALE (or their Y equivalents) was impossible. Often caused by entering a null plot prototype and no parameters. Fatal; the process is exited. |
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>>> Invalid Arrow Position Ind. <<< |
The @POSITION parameter must have a value of 1, 2 or 3. |
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