Description
This function emulates the standard PGPLOT curs() event. It returns a record
of the form:
[ok=bool, x=float, y=float, ch=string]
The ``ch'' field is the key that the user struck on the keyboard.
Note that it
BLOCKS until a key is pressed on the plot area. Setting a
callback is usually more flexible than this routine since it tolerates inaction
on the users part better.
The function may be passed a position where the programmer guesses
that the user will want to position the cursor. It defaults to (0,0).
Arguments
| x |
|
estimated X position |
| |
|
Allowed: |
float |
| |
|
Default: |
0 |
| y |
|
estimated Y position |
| |
|
Allowed: |
float |
| |
|
Default: |
0 |
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