Difference between revisions of "DynamicCoordinates Command"
From GeoGebra Manual
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{{Example| | {{Example| | ||
| + | * B=DynamicCoordinates[A,round(x(A)),round(y(A))]. You try to move ''B'' to (1.3,2.1) using the [[Image:Tool Move.gif]] [[Move Tool]]. Point ''A'' becomes (1.3,2.1) and ''B'' appears at (1,2). | ||
| + | * B=DynamicCoordinates[A,x(A),min(y(A),sin(x(A)))] create a point under under sin(x). PointIn[y<sin(x)] is easier solution in this case. | ||
* Create three [[Slider Tool|slider]] a, b, and c with an interval from 0 to 1. | * Create three [[Slider Tool|slider]] a, b, and c with an interval from 0 to 1. | ||
* Create a polygon whose color should be influenced by the slider values. | * Create a polygon whose color should be influenced by the slider values. | ||
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* Close the Properties Dialog and change the values of the sliders in order to find out how each color component influences the resulting color of the polygon. | * Close the Properties Dialog and change the values of the sliders in order to find out how each color component influences the resulting color of the polygon. | ||
{{note|You could also animate the sliders with different speeds in order to see the color of the polygon change automatically.}}}} | {{note|You could also animate the sliders with different speeds in order to see the color of the polygon change automatically.}}}} | ||
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Revision as of 01:52, 18 April 2011
- DynamicCoordinates[ Point A, Number X, Number Y ]
- creates a point with coords (X, Y). This point is dependent, but can be moved. Whenever you try to move the new point to coordinates (x,y), point A is moved there and coordinates for the new point are calculated. Works best if point A is not visible. At least one of X and Y should depend on A.
Example: {{{1}}}
