/**
* This method removes all the Symbols, that overlap each other. So that the output is collision free.
*
* @param symbols
* symbols from the actual tile
*/
void removeOverlappingSymbols(List <SymbolContainer> symbols)
{
int dis = SYMBOL_DISTANCE_TO_SYMBOL;
for (int x = 0; x < symbols.Count; x++)
{
this.symbolContainer = symbols[x];
this.rect1 = new Rect((int)this.symbolContainer.point.X - dis, (int)this.symbolContainer.point.Y - dis,
(int)this.symbolContainer.point.X + this.symbolContainer.symbol.Width + dis,
(int)this.symbolContainer.point.Y + this.symbolContainer.symbol.Height + dis);
for (int y = x + 1; y < symbols.Count; y++)
{
if (y != x)
{
this.symbolContainer = symbols[y];
this.rect2 = new Rect((int)this.symbolContainer.point.X, (int)this.symbolContainer.point.Y,
(int)this.symbolContainer.point.X + this.symbolContainer.symbol.Width,
(int)this.symbolContainer.point.Y + this.symbolContainer.symbol.Height);
if (Utils.Intersects(this.rect2, this.rect1))
{
symbols.Remove(this.symbolContainer);
y--;
}
}
}
}
}
/**
* This method removes the Symbols, that are not visible in the actual tile.
*
* @param symbols
* Symbols from the actual tile
*/
private void removeOutOfTileSymbols(List <SymbolContainer> symbols)
{
for (int i = 0; i < symbols.Count;)
{
this.symbolContainer = symbols[i];
if (this.symbolContainer.point.X > Tile.TileSize)
{
symbols.Remove(this.symbolContainer);
}
else if (this.symbolContainer.point.Y > Tile.TileSize)
{
symbols.Remove(this.symbolContainer);
}
else if (this.symbolContainer.point.X + this.symbolContainer.symbol.Width < 0.0f)
{
symbols.Remove(this.symbolContainer);
}
else if (this.symbolContainer.point.Y + this.symbolContainer.symbol.Height < 0.0f)
{
symbols.Remove(this.symbolContainer);
}
else
{
i++;
}
}
}
/**
* Removes the the symbols that overlap with area labels.
*
* @param symbols
* list of symbols
* @param pTC
* list of labels
*/
private void removeOverlappingSymbolsWithAreaLabels(List <SymbolContainer> symbols, List <pointTextContainer> pTC)
{
int dis = LABEL_DISTANCE_TO_SYMBOL;
for (int x = 0; x < pTC.Count; x++)
{
this.label = pTC[x];
this.rect1 = new Rect((int)this.label.x - dis, (int)(this.label.y - this.label.boundary.Height) - dis,
(int)(this.label.x + this.label.boundary.Width + dis), (int)(this.label.y + dis));
for (int y = 0; y < symbols.Count; y++)
{
this.symbolContainer = symbols[y];
this.rect2 = new Rect((int)this.symbolContainer.point.X, (int)this.symbolContainer.point.Y,
(int)(this.symbolContainer.point.X + this.symbolContainer.symbol.Width),
(int)(this.symbolContainer.point.Y + this.symbolContainer.symbol.Height));
if (Utils.Intersects(this.rect1, this.rect2))
{
symbols.Remove(this.symbolContainer);
y--;
}
}
}
}
public void drawSymbols(List <SymbolContainer> symbolContainers)
{
for (int index = symbolContainers.Count - 1; index >= 0; --index)
{
SymbolContainer symbolContainer = symbolContainers[index];
MapPoint point = symbolContainer.point;
if (symbolContainer.alignCenter)
{
double pivotX = symbolContainer.symbol.Width / 2;
double pivotY = symbolContainer.symbol.Height / 2;
this.symbolMatrix.Rotation = symbolContainer.rotation;
this.symbolMatrix.CenterX = pivotX;
this.symbolMatrix.CenterY = pivotY;
this.symbolMatrix.TranslateX = point.X - pivotX;
this.symbolMatrix.TranslateY = point.Y - pivotY;
}
else
{
this.symbolMatrix.Rotation = symbolContainer.rotation;
this.symbolMatrix.TranslateX = point.X;
this.symbolMatrix.TranslateY = point.Y;
}
BitmapImage androidBitmap = AndroidGraphics.getAndroidBitmap(symbolContainer.symbol);
this.canvas.drawBitmap(androidBitmap, this.symbolMatrix, PAINT_BITMAP_FILTER);
}
}
public ReferencePosition(double x, double y, int nodeNumber, double width, double height, SymbolContainer symbol)
{
this.x = x;
this.y = y;
this.nodeNumber = nodeNumber;
this.width = width;
this.height = height;
this.symbol = symbol;
}
/**
* The greedy algorithms need possible label positions, to choose the best among them. This method removes the
* reference points, that are not validate. Not validate means, that the Reference overlap with another symbol or
* label or is outside of the tile.
*
* @param refPos
* list of the potential positions
* @param symbols
* actual list of the symbols
* @param areaLabels
* actual list of the area labels
*/
private void removeNonValidateReferencePosition(ReferencePosition[] refPos, List <SymbolContainer> symbols,
List <pointTextContainer> areaLabels)
{
int distance = LABEL_DISTANCE_TO_SYMBOL;
for (int i = 0; i < symbols.Count; i++)
{
this.symbolContainer = symbols[i];
this.rect1 = new Rect((int)this.symbolContainer.point.X - distance, (int)this.symbolContainer.point.Y
- distance, (int)this.symbolContainer.point.X + this.symbolContainer.symbol.Width + distance,
(int)this.symbolContainer.point.Y + this.symbolContainer.symbol.Height + distance);
for (int y = 0; y < refPos.Length; y++)
{
if (refPos[y] != null)
{
this.rect2 = new Rect((int)refPos[y].x, (int)(refPos[y].y - refPos[y].height),
(int)(refPos[y].x + refPos[y].width), (int)(refPos[y].y));
if (Utils.Intersects(this.rect2, this.rect1))
{
refPos[y] = null;
}
}
}
}
distance = LABEL_DISTANCE_TO_LABEL;
foreach (pointTextContainer areaLabel in areaLabels)
{
this.rect1 = new Rect((int)areaLabel.x - distance, (int)areaLabel.y - areaLabel.boundary.Height
- distance, (int)areaLabel.x + areaLabel.boundary.Width + distance, (int)areaLabel.y + distance);
for (int y = 0; y < refPos.Length; y++)
{
if (refPos[y] != null)
{
this.rect2 = new Rect((int)refPos[y].x, (int)(refPos[y].y - refPos[y].height),
(int)(refPos[y].x + refPos[y].width), (int)(refPos[y].y));
if (Utils.Intersects(this.rect2, this.rect1))
{
refPos[y] = null;
}
}
}
}
this.dependencyCache.removeReferencepointsFromDependencyCache(refPos);
}
/**
* Create a new Point container, that holds the x-y coordinates of a point, a text variable, two paint objects, and
* a reference on a symbol, if the text is connected with a NODE.
*
* @param text
* the text of the point.
* @param x
* the x coordinate of the point.
* @param y
* the y coordinate of the point.
* @param paintFront
* the paintFront for the point.
* @param paintBack
* the paintBack for the point.
* @param symbol
* the connected Symbol.
*/
public PointTextContainer(string text, double x, double y, Paint paintFront, Paint paintBack, SymbolContainer symbol)
{
this.text = text;
this.x = x;
this.y = y;
this.paintFront = paintFront;
this.paintBack = paintBack;
this.symbol = symbol;
if (paintBack != null)
{
this.boundary = new Rect(0, 0, paintBack.getTextWidth(text), paintBack.getTextHeight(text));
}
else
{
this.boundary = new Rect(0, 0, paintFront.getTextWidth(text), paintFront.getTextHeight(text));
}
}
private void removeOverlappingSymbolsWithDependencyLabels(List <SymbolContainer> symbols)
{
for (int i = 0; i < this.currentDependencyOnTile.labels.Count; i++)
{
this.depLabel = this.currentDependencyOnTile.labels[i];
this.rect1 = new Rect((int)(this.depLabel.point.X),
(int)(this.depLabel.point.Y - this.depLabel.value.boundary.Height),
(int)(this.depLabel.point.X + this.depLabel.value.boundary.Width), (int)(this.depLabel.point.Y));
for (int x = 0; x < symbols.Count; x++)
{
this.smb = symbols[x];
this.rect2 = new Rect((int)this.smb.point.X, (int)this.smb.point.Y, (int)this.smb.point.X
+ this.smb.symbol.Width, (int)this.smb.point.Y + this.smb.symbol.Height);
if (Utils.Intersects(this.rect2, this.rect1))
{
symbols.Remove(x);
x--;
}
}
}
}