Touchscreen selection visual feedback

A computing device for providing visual feedback to a user indicating a touch selection of an element in a graphical user interface, comprising:

• a display having a touch-sensitive surface and a display point of reference;
• a rendering engine program including a render camera with an axis of projection intersecting the display point of reference, the rendering engine program configured to:
• display the element in a first orientation on the display;
• establish an element position rotation scaling factor that is based on at least a distance between an element point of reference and the display point of reference;
• determine a rotation amount of the element based on at least the element position rotation scaling factor;
• receive the touch selection of the element via the user touching the touch-sensitive surface of the display;
• rotate the element by the rotation amount to a second orientation;
• and
• display the element in the second orientation on the display.

A method for providing visual feedback to a user indicating a touch selection of an element in a graphical user interface on a touch-sensitive display, the element rotatable and scalable upon receiving the touch selection, the graphical user interface being displayed by a rendering engine program having a render camera with an axis of projection intersecting a display point of reference, comprising:

• displaying the element in a first orientation and a first size on the display;
• establishing an element position rotation scaling factor that is based on a distance between an element point of reference and the display point of reference;
• receiving the touch selection of the element via the user touching a surface of the display;
• determining a selection position on the element where the touch selection of the element was received;
• establishing a selection position rotation scaling factor that is based on a distance between the selection position on the element and an element point of reference;
• determining a rotation amount of the element based on the element position rotation scaling factor and the selection position rotation scaling factor;
• rotating the element by the rotation amount to a second orientation, the rotation amount comprising a maximum rotation multiplied by the element position rotation scaling factor and by the selection position rotation scaling factor;
• establishing an element position size scaling factor that is based on the distance between the element point of reference and the display point of reference;
• establishing a selection position size scaling factor that is based on the distance between the selection position on the element and the element point of reference;
• establishing a selected size scaling factor that comprises the element position size scaling factor or the selection position size scaling factor, whichever is smaller;
• determining a second size of the element by multiplying the first, size of the element by the selected size scaling factor;
• and
• displaying the element in the second orientation and the second size on the display.