Once your racers are imported in GeoGebra, let us see how we can change them.
Handle Points
Each imported image has two handle points. Let us call them A and B. The distance between the points decides the size of the image. If the distance between the points is large, the image will be large. If the the distance between the points is small the image will be small. Thus if the coordinates of the handle point change, the image also changes.
Assigning Sliders to Handle points
This is the most crucial part of the activity. In this we will give the values of the Slider that we have created to the coordinates of the handle points of the image. Thus the handle points will change when we change the slider. This will cause the image to move.
See the GIF below to see how to assign the slider values to handle points.
We will set (a-1,0) for point A and (a,0) for point B.
This will change the width of the image to 1 and keep the racer at the Start line (x=0).
Now if we change the slider the image will move.
Adding the second racer Repeat the above steps with another racer. You will need to create another slider for this racer. So you will have two racers with two sliders.
[Contributed by administrator on 15. März 2018 15:31:54]
Once your racers are imported in GeoGebra, let us see how we can change them.
Handle Points
Each imported image has two handle points. Let us call them A and B. The distance between the points decides the size of the image. If the distance between the points is large, the image will be large. If the the distance between the points is small the image will be small. Thus if the coordinates of the handle point change, the image also changes.
This is the most crucial part of the activity. In this we will give the values of the Slider that we have created to the coordinates of the handle points of the image. Thus the handle points will change when we change the slider. This will cause the image to move.Assigning Sliders to Handle points
See the GIF below to see how to assign the slider values to handle points.
Adding the second racer
Repeat the above steps with another racer. You will need to create another slider for this racer. So you will have two racers with two sliders.