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Constraining a Location to Move Along a Plot in a Manipulate

• To: mathgroup at smc.vnet.net
• Subject: [mg127771] Constraining a Location to Move Along a Plot in a Manipulate
• From: Gregory Lypny <gregory.lypny at videotron.ca>
• Date: Mon, 20 Aug 2012 21:30:43 -0400 (EDT)
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Hello everyone,

Awhile back, participants on this forum kindly showed me how to constrain a locator to move along a curve by using DynamicModule[...], an example of which is in the Help Centre.  But I can't figure out how to pull this off in a Manipulate,where I'm guessing that the locator would be a control.  Say I have a simple Manipulate that plots a line, y = mx + b, where m is control for changing the slope.  I would also like to have a locator that users can slide up and down the line in lieu of a slider control that draws a point on the line.

Regards,

Gregory

• Follow-Ups:
  • Re: Constraining a Location to Move Along a Plot in a
    • From: Gregory Lypny <gregory.lypny@videotron.ca>
  • Re: Constraining a Location to Move Along a Plot in a Manipulate
    • From: Bob Hanlon <hanlonr357@gmail.com>