Checking the location of a moving object
m.schonewille at economy-x-talk.com
Mon Jul 19 07:44:20 EDT 2010
I don't understand what you want, but you could always define a path
instead of two points. Check all points on the path to see whether
they are within the boundaries. If a point isn't within the
boundaries, update it. Once you have a correct path, execute the move
command. You might want to read more about the move command in the
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On 19 jul 2010, at 13:13, David Glasgow wrote:
> Hello folks.
> I am proposing to import data which will form a 'freehand' graphic
> containing about 5,000 data point loc pairs. I have made a marker
> to follow the curve using the move command, which works fine.
> However, I want the user to be able to select a threshold on the Y
> axis above and below which graphics change on screen.
> I therefore need to check the vertical position of the marker, so I
> did this:
> In the starting button:
> on mouseUp
> move grc "marker" to the points of graphic "PPG" in 90 seconds
> end mouseUp
> and in the card script:
> on checkit
> put the loc of grc "marker" & "moving " & the movingcontrols
> -- check threshold here
> if the movingcontrols is not empty then send checkit to me in 1 tick
> end checkit
> I get the first loc for grc "marker" reported in the message box,
> but that's it. Is a move completely blocking or am I doing
> something wrong?
> If I can't use move in this way, any suggestions?
> David Glasgow
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