/// <summary>
/// Creates a new Custom Point symbolizer with the specified properties
/// </summary>
/// <param name="uniqueName">the unique name</param>
/// <param name="name">the name of the custom symbolizer</param>
/// <param name="category">the map category of the custom symbolizer</param>
/// <param name="symbolizer">the associated Point symbolizer</param>
public CustomPointSymbolizer(string uniqueName, string name, string category, PointSymbolizer symbolizer)
{
base.UniqueName = uniqueName;
base.Name = name;
base.Category = category;
base.Symbolizer = symbolizer;
}
/// <summary>
/// Draws a preview of a point symbolizer inside of the specified rectangle
/// </summary>
private void DrawPointSymbolizer(PointSymbolizer sym, Graphics g, Rectangle rect)
{
if (sym != null)
{
g.Clear(Color.White);
Matrix shift = g.Transform;
shift.Translate(rect.Width / 2, rect.Height / 2);
g.Transform = shift;
double scale = 1;
if (sym.ScaleMode == ScaleModes.Geographic || sym.GetSize().Height > (rect.Height - 6))
{
scale = (rect.Height - 6) / sym.GetSize().Height;
}
sym.Draw(g, scale);
}
}
private static List<CustomSymbolizer> getBasicPointSymbols()
{
List<CustomSymbolizer> lst = new List<CustomSymbolizer>();
PointSymbolizer s1 = new PointSymbolizer();
const char ch = '\u21e6';
s1.Symbols.Add(new CharacterSymbol(ch, "arial", Color.Blue,10.0));
lst.Add(new CustomSymbolizer(s1, "symbol01", "arrow1", "arrows"));
PointSymbolizer s2 = new PointSymbolizer(Color.Beige, PointShapes.Ellipse, 7.0);
lst.Add(new CustomSymbolizer(s2, "symbol02", "circle1", "default"));
return lst;
}
/// <summary>
/// Sets up the Table to work with the specified layer
/// </summary>
/// <param name="layer"></param>
public void Initialize(IFeatureLayer layer)
{
_original = layer.Symbology;
ILegendItem parent = _original.GetParentItem();
//_original.SetParentItem(null);
_newScheme = _original.Copy();
_source = layer.DataSet;
// _original.SetParentItem(parent); // Disconnect this from actually affecting the layers.
if(!layer.DataSet.AttributesPopulated)
{
if(layer.DataSet.NumRows() < 100000)
{
_source.FillAttributes(); // for small datasets, it is better to just load and cache it.
}
}
if(_source.AttributesPopulated)
{
_expressionDialog.Table = _source.DataTable;
}
else
{
_expressionDialog.AttributeSource = _source;
}
_schemeType = GetSchemeType(layer);
if (_schemeType != SymbolizerTypes.Polygon)
{
chkUseGradients.Visible = false;
angGradientAngle.Visible = false;
}
else
{
chkUseGradients.Visible = true;
angGradientAngle.Visible = true;
}
if (_schemeType == SymbolizerTypes.Point)
{
IPointScheme ps = _newScheme as IPointScheme;
if (ps != null)
{
IPointSymbolizer sym;
if (ps.Categories.Count == 0 || ps.Categories[0].Symbolizer == null)
{
sym = new PointSymbolizer();
}
else
{
sym = ps.Categories[0].Symbolizer;
}
_ignoreRefresh = true;
featureSizeRangeControl1.SizeRange = new FeatureSizeRange(sym,_newScheme.EditorSettings.StartSize , _newScheme.EditorSettings.EndSize);
featureSizeRangeControl1.Initialize(new SizeRangeEventArgs(_newScheme.EditorSettings.StartSize, _newScheme.EditorSettings.EndSize, sym, _newScheme.EditorSettings.UseSizeRange));
featureSizeRangeControl1.Scheme = ps;
featureSizeRangeControl1.Visible = true;
_ignoreRefresh = false;
}
}
else if (_schemeType == SymbolizerTypes.Line)
{
ILineScheme ls = _newScheme as ILineScheme;
if(ls != null)
{
ILineSymbolizer sym;
if(ls.Categories.Count == 0 || ls.Categories[0].Symbolizer == null)
{
sym = new LineSymbolizer();
}
else
{
sym = ls.Categories[0].Symbolizer;
}
_ignoreRefresh = true;
featureSizeRangeControl1.SizeRange = new FeatureSizeRange(sym, _newScheme.EditorSettings.StartSize, _newScheme.EditorSettings.EndSize);
featureSizeRangeControl1.Initialize(new SizeRangeEventArgs(_newScheme.EditorSettings.StartSize, _newScheme.EditorSettings.EndSize, sym, _newScheme.EditorSettings.UseSizeRange));
featureSizeRangeControl1.Scheme = ls;
featureSizeRangeControl1.Visible = true;
_ignoreRefresh = false;
}
}
else
{
featureSizeRangeControl1.Visible = false;
}
UpdateFields();
if (_newScheme.EditorSettings.ClassificationType != ClassificationTypes.Quantities) return;
nudCategoryCount.Enabled = true;
tabScheme.Visible = true;
dgvCategories.Height = 217;
UpdateStatistics(false, null);
}
/// <summary>
/// Creates a new Point Category based on the specified character
/// </summary>
/// <param name="character">The character to use for the symbol</param>
/// <param name="fontFamilyName">The font family name to use as the font</param>
/// <param name="color">The color of the character</param>
/// <param name="size">The size of the symbol</param>
public PointCategory(char character, string fontFamilyName, Color color, double size)
{
Symbolizer = new PointSymbolizer(character, fontFamilyName, color, size);
SelectionSymbolizer = new PointSymbolizer(character, fontFamilyName, Color.Cyan, size);
}
/// <summary>
/// Creates a simple point category where the symbolizer is based on the simple characteristics.
/// The selection symbolizer has the same shape and size, but will be colored cyan.
/// </summary>
/// <param name="color">The color of the regular symbolizer</param>
/// <param name="shape">The shape of the regular symbolizer</param>
/// <param name="size">the size of the regular symbolizer</param>
public PointCategory(Color color, PointShapes shape, double size)
{
Symbolizer = new PointSymbolizer(color, shape, size);
SelectionSymbolizer = new PointSymbolizer(Color.Cyan, shape, size);
}
/// <summary>
/// Creates a new instanec of a default point scheme category where the geographic symbol size has been
/// scaled to the specified extent.
/// </summary>
/// <param name="extent">The geographic extent that is 100 times wider than the geographic size of the points.</param>
public PointCategory(IEnvelope extent)
{
Symbolizer = new PointSymbolizer(false, extent);
SelectionSymbolizer = new PointSymbolizer(true, extent);
}
/// <summary>
/// Creates a new instance of PointSchemeCategory
/// </summary>
public PointCategory()
{
Symbolizer = new PointSymbolizer();
SelectionSymbolizer = new PointSymbolizer(true);
}
/// <summary>
/// Creates a new Point Category from the list of symbols
/// </summary>
/// <param name="symbols"></param>
public PointCategory(IEnumerable<ISymbol> symbols)
{
Symbolizer = new PointSymbolizer(symbols);
List<ISymbol> copy = symbols.CloneList();
if(copy.Count() > 0)
{
IColorable c = symbols.Last() as IColorable;
if(c != null)
{
c.Color = Color.Cyan;
}
}
SelectionSymbolizer = new PointSymbolizer(copy);
}
/// <summary>
/// Creates a category from the single symbol specified. If the symbol is colorable,
/// the color of the selection symbol will be duplicated, but set to cyan.
/// </summary>
/// <param name="symbol"></param>
public PointCategory(ISymbol symbol)
{
Symbolizer = new PointSymbolizer(symbol);
ISymbol copy = symbol.Copy();
IColorable c = copy as IColorable;
if(c != null)
{
c.Color = Color.Cyan;
}
SelectionSymbolizer = new PointSymbolizer(copy);
}
/// <summary>
/// Creates a category where the picture is used for the symbol, and a selected
/// symbol is created as the same symbol but with a cyan border.
/// </summary>
/// <param name="picture">The image to use</param>
/// <param name="size">The size of the symbol</param>
public PointCategory(Image picture, double size)
{
Symbolizer = new PointSymbolizer(picture, size);
PictureSymbol ps = new PictureSymbol(picture, size);
ps.OutlineColor = Color.Cyan;
ps.OutlineWidth = 2;
ps.OutlineOpacity = 1f;
SelectionSymbolizer = new PointSymbolizer();
}
/// <summary>
/// Creates a new CustomSymbolizer for symbolizing Points
/// </summary>
public CustomPointSymbolizer()
{
Symbolizer = new PointSymbolizer();
}