public override void LayoutItems(ArrayList items)
{
float neededCircumference;
// calc needed circumference
//
CalcLayoutInfoFromItems(out neededCircumference, out this.maxItemRadius, items, 1);
// calc radius of the spiral
//
float radius = neededCircumference / MathHelper.TwoPi;
float spacingCircumference = 0.0f; // spacing between items on the circumference
float radiusSpiral = this.maxItemRadius * 2.0f;
{
// radius is too small, must increase
// this is assuming the center composed item is the same size as the other items
radius = this.maxItemRadius * 2.0f;
// and provide the extra spacing between items on the circumference
float newCircumference = MathHelper.TwoPi * radius;
spacingCircumference = (newCircumference - neededCircumference) / items.Count;
neededCircumference = newCircumference;
}
// layout items into position spiraling on the circumference
//
float headingArcLength = 0.0f;
for (int indexItem = 0; indexItem < items.Count; indexItem++)
{
OrbitalSelector.ItemData itemData = items[indexItem] as OrbitalSelector.ItemData;
IBounding boundingItem = itemData.item as IBounding;
ITransform transformItem = itemData.item as ITransform;
// skip the first one so it is top dead center
if (indexItem != 0)
{
// update angle along arc
headingArcLength += boundingItem.BoundingSphere.Radius;
}
// create a vector to the current heading
float headingAngle = headingArcLength / radius;
Vector3 heading = new Vector3((float)(Math.Sin(headingAngle) * radiusSpiral), (float)(Math.Cos(headingAngle) * radiusSpiral), 0.0f);
// set position
transformItem.Local.Translation = heading;
transformItem.Compose();
// update angle along arc
headingArcLength += boundingItem.BoundingSphere.Radius + spacingCircumference;
// update the spiral radius
radiusSpiral += boundingItem.BoundingSphere.Radius / 6.0f;
}
this.maxOrbit = radiusSpiral;
}
public override void LayoutItems(ArrayList items)
{
float neededCircumference;
// calc needed circumference
//
CalcLayoutInfoFromItems(out neededCircumference, out this.maxItemRadius, items, 1);
// calc radius of the pie
//
float radius = neededCircumference / MathHelper.TwoPi;
float spacingCircumference = 0.0f; // spacing between items on the circumference
if (radius < this.maxItemRadius * 2.0f)
{
// radius is too small, must increase
// this is assuming the center composed item is the same size as the other items
radius = this.maxItemRadius * 2.0f;
// and provide the extra spacing between items on the circumference
float newCircumference = MathHelper.TwoPi * radius;
spacingCircumference = (newCircumference - neededCircumference) / items.Count;
neededCircumference = newCircumference;
}
this.maxOrbit = radius;
// layout items into position on the circumference
//
float headingArcLength = 0.0f;
for (int indexItem = 0; indexItem < items.Count; indexItem++)
{
OrbitalSelector.ItemData itemData = items[indexItem] as OrbitalSelector.ItemData;
IBounding boundingItem = itemData.item as IBounding;
ITransform transformItem = itemData.item as ITransform;
// skip the first one so it is top dead center
if (indexItem != 0)
{
// update angle along arc
headingArcLength += boundingItem.BoundingSphere.Radius;
}
// create a vector to the current heading
float headingAngle = headingArcLength / radius;
Vector3 heading = new Vector3((float)(Math.Sin(headingAngle) * radius), (float)(Math.Cos(headingAngle) * radius), 0.0f);
// set position by animations
// transformItem.Local = Matrix.CreateTranslation(heading);
TwitchManager.GetVector3 get = delegate(Object param)
{
return(Vector3.Zero);
};
TwitchManager.SetVector3 set = delegate(Vector3 value, Object param)
{
ITransform transformObject = param as ITransform;
if (transformObject != null)
{
transformObject.Local.Translation = value;
transformObject.Compose();
}
};
TwitchManager.Vector3Twitch twitch = new TwitchManager.Vector3Twitch(
get,
set,
heading,
0.2f,
TwitchCurve.Shape.EaseOut,
transformItem);
twitch.Play();
// update angle along arc
headingArcLength += boundingItem.BoundingSphere.Radius + spacingCircumference;
}
}
public override void LayoutItems(ArrayList items)
{
float neededCircumference;
int rows;
int cols;
// calc needed circumference
//
CalcLayoutInfoFromItems(out this.maxItemRadius, out rows, out cols, items);
float itemWidth = this.maxItemRadius * 2.0f * (float)Math.Sin(Math.PI * 0.25) + 0.1f;
this.maxOrbit = this.maxItemRadius * (float)rows / 2.0f;
this.maxInterItemSpacing = this.maxItemRadius * 2.0f;
for (int indexItem = 0; indexItem < items.Count; indexItem++)
{
OrbitalSelector.ItemData itemData = items[indexItem] as OrbitalSelector.ItemData;
IBounding boundingItem = itemData.item as IBounding;
ITransform transformItem = itemData.item as ITransform;
int col = (indexItem % cols) - (cols / 2);
int row = (indexItem / cols) - (rows / 2);
Vector3 position = new Vector3((float)col * itemWidth, (float)row * -itemWidth, 0.0f);
Debug.Print("[{0}][{1}] ({2,8:F},{3,8:F})", col, row, position.X, position.Y);
this.maxOrbit = MathHelper.Max(this.maxOrbit, Math.Abs(position.X));
// set position by animations
// transformItem.Local = Matrix.CreateTranslation(heading);
TwitchManager.GetVector3 get = delegate(Object param)
{
return(Vector3.Zero);
};
TwitchManager.SetVector3 set = delegate(Vector3 value, Object param)
{
ITransform transformObject = param as ITransform;
if (transformObject != null)
{
transformObject.Local.Translation = value;
transformObject.Compose();
}
};
TwitchManager.Vector3Twitch twitch = new TwitchManager.Vector3Twitch(
get,
set,
position,
0.2f,
TwitchCurve.Shape.EaseOut,
transformItem);
twitch.Play();
}
/*
* // layout items into position on a grid starting top left
* //
* int ring = 1;
* int cols = 3; // first ring is 3x3
* int colEnd = (cols / 2);
* int col = -(colEnd);
* int row = -(colEnd);
* int colInc = 1;
* int rowInc = 0;
*
* float itemWidth = this.maxItemRadius * 2.0f;
*
* for (int indexItem = 0; indexItem < items.Count; indexItem++)
* {
* OrbitalSelector.ItemData itemData = items[indexItem] as OrbitalSelector.ItemData;
* IBounding boundingItem = itemData.item as IBounding;
* ITransform transformItem = itemData.item as ITransform;
*
*
* Vector3 position = new Vector3((float)col * itemWidth, (float)row * -itemWidth, 0.0f);
* Debug.Print("[{0}][{1}] ({2,8:F},{3,8:F})", col, row, position.X, position.Y);
*
* col += colInc;
* row += rowInc;
* // reached right
* if (col > colEnd)
* {
* col = colEnd;
* colInc = 0;
* rowInc = 1;
* row += rowInc;
* }
* // reached bottom
* if (row > colEnd)
* {
* row = colEnd;
* colInc = -1;
* rowInc = 0;
* col += colInc;
* }
* // reached left
* if (col < -colEnd)
* {
* col = -colEnd;
* colInc = 0;
* rowInc = -1;
* row += rowInc;
* }
* // reached top
* if (col == -colEnd && row == -colEnd)
* {
* cols += 2;
* colEnd = (cols / 2);
* col = -(colEnd);
* row = -(colEnd);
* colInc = 1;
* rowInc = 0;
* }
*
* // set position by animations
* // transformItem.Local = Matrix.CreateTranslation(heading);
* TwitchManager.GetVector3 get = delegate(Object param)
* {
* return Vector3.Zero;
* };
* TwitchManager.SetVector3 set = delegate(Vector3 value, Object param)
* {
* ITransform transformObject = param as ITransform;
* if (transformObject != null)
* {
* transformObject.Local.Translation = value;
* transformObject.Compose();
* }
* };
* TwitchManager.Vector3Twitch twitch = new TwitchManager.Vector3Twitch(
* get,
* set,
* position,
* 0.2f,
* TwitchCurve.Shape.EaseOut,
* transformItem);
* twitch.Play();
* }
* this.maxOrbit = colEnd * itemWidth;
*/
}