Difference between revisions of "DynamicCoordinates Command"
From GeoGebra Manual
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* <code><nowiki>B=DynamicCoordinates[A,x(A),min(y(A),sin(x(A)))]</nowiki></code> create a point under under sin(x). PointIn[y<sin(x)] is easier solution in this case. | * <code><nowiki>B=DynamicCoordinates[A,x(A),min(y(A),sin(x(A)))]</nowiki></code> create a point under under sin(x). PointIn[y<sin(x)] is easier solution in this case. | ||
}} | }} | ||
| + | |||
| + | {{Example| | ||
| + | * 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. | ||
| + | * Open the [[Properties Dialog]] for the polygon poly1 and enter the names of the three sliders into the text boxes for the color components. | ||
| + | * 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.}}}} | ||
| + | |||
| + | : '''RGB / HSV / HSL''' {{description}} | ||
Revision as of 01:48, 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:
B=DynamicCoordinates[A,round(x(A)),round(y(A))]. You try to move B to (1.3,2.1) using the
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.
Example:
- Create three slider a, b, and c with an interval from 0 to 1.
- Create a polygon whose color should be influenced by the slider values.
- Open the Properties Dialog for the polygon poly1 and enter the names of the three sliders into the text boxes for the color components.
- 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.
- RGB / HSV / HSL
Description of command / feature needed. Please enter it instead of this template into Manual:DynamicCoordinates Command. so that it's included also to the public namespace. For more details see Project:HowTo
