Represents a polygon symbol which is used to draw polygon features or polygon graphics.
Create_polygon_env
//Create a polygon graphic using an envelope with simple line and fill styles.
//Construct on the worker thread
await QueuedTask.Run(() =>
{
//Build 2D envelope
Coordinate2D env_ll = new Coordinate2D(1.0, 4.75);
Coordinate2D env_ur = new Coordinate2D(3.0, 5.75);
//At 2.x - Envelope env = EnvelopeBuilder.CreateEnvelope(env_ll, env_ur);
Envelope env = EnvelopeBuilderEx.CreateEnvelope(env_ll, env_ur);
//Set symbolology, create and add element to layout
CIMStroke outline = SymbolFactory.Instance.ConstructStroke(
ColorFactory.Instance.BlueRGB, 2.0, SimpleLineStyle.DashDotDot);
CIMPolygonSymbol polySym = SymbolFactory.Instance.ConstructPolygonSymbol(
ColorFactory.Instance.RedRGB, SimpleFillStyle.ForwardDiagonal, outline);
//At 2.x - GraphicElement polyElm =
// LayoutElementFactory.Instance.CreatePolygonGraphicElement(layout, env, polySym);
// polyElm.SetName("New Polygon");
GraphicElement polyElm = ElementFactory.Instance.CreateGraphicElement(
layout, env, polySym, "New Polygon");
});
Create_circle
//Create a circle graphic element using a simple line and fill styles.
//Construct on the worker thread
await QueuedTask.Run(() =>
{
//Build geometry
Coordinate2D center = new Coordinate2D(2, 4);
//At 2.x - EllipticArcBuilder eabCir = new EllipticArcBuilder(center, 0.5, esriArcOrientation.esriArcClockwise);
var eabCir = new EllipticArcBuilderEx(center, 0.5, ArcOrientation.ArcClockwise);
EllipticArcSegment cir = eabCir.ToSegment();
//Set symbolology, create and add element to layout
CIMStroke outline = SymbolFactory.Instance.ConstructStroke(ColorFactory.Instance.BlackRGB, 2.0, SimpleLineStyle.Dash);
CIMPolygonSymbol circleSym = SymbolFactory.Instance.ConstructPolygonSymbol(ColorFactory.Instance.RedRGB, SimpleFillStyle.Solid, outline);
//At 2.x - GraphicElement cirElm = LayoutElementFactory.Instance.CreateCircleGraphicElement(layout, cir, circleSym);
// cirElm.SetName("New Circle");
var polyLine = PolylineBuilderEx.CreatePolyline(cir);
GraphicElement cirElm = ElementFactory.Instance.CreateGraphicElement(layout, polyLine, circleSym, "New Circle");
});
Create_ellipse
//Create an ellipse graphic with simple line and fill styles.
//Construct on the worker thread
await QueuedTask.Run(() =>
{
//Build geometry
Coordinate2D center = new Coordinate2D(2, 2.75);
//At 2.x - EllipticArcBuilder eabElp = new EllipticArcBuilder(center, 0, 1, 0.45, esriArcOrientation.esriArcClockwise);
var eabElp = new EllipticArcBuilderEx(center, 0, 1, 0.45, ArcOrientation.ArcClockwise);
EllipticArcSegment ellipse = eabElp.ToSegment();
//Set symbolology, create and add element to layout
CIMStroke outline = SymbolFactory.Instance.ConstructStroke(ColorFactory.Instance.GreenRGB, 2.0, SimpleLineStyle.Dot);
CIMPolygonSymbol ellipseSym = SymbolFactory.Instance.ConstructPolygonSymbol(ColorFactory.Instance.GreyRGB, SimpleFillStyle.Vertical, outline);
//At 2.x - GraphicElement elpElm = LayoutElementFactory.Instance.CreateEllipseGraphicElement(layout, ellipse, ellipseSym);
// elpElm.SetName("New Ellipse");
var polyLine = PolylineBuilderEx.CreatePolyline(ellipse);
GraphicElement elpElm = ElementFactory.Instance.CreateGraphicElement(layout, polyLine, ellipseSym, "New Ellipse");
});
Create Ellipse Graphic Element
//Must be on QueuedTask.Run(() => { ...
//Build geometry
Coordinate2D center = new Coordinate2D(2, 2.75);
var eabElp = new EllipticArcBuilderEx(center, 0, 1, 0.45,
ArcOrientation.ArcClockwise);
var ellipse = eabElp.ToSegment();
//Set symbology, create and add element to layout
CIMStroke outline = SymbolFactory.Instance.ConstructStroke(
ColorFactory.Instance.GreenRGB, 2.0,
SimpleLineStyle.Dot);
CIMPolygonSymbol ellipseSym = SymbolFactory.Instance.ConstructPolygonSymbol(
ColorFactory.Instance.GreyRGB, SimpleFillStyle.Vertical,
outline);
var poly = PolygonBuilderEx.CreatePolygon(
PolylineBuilderEx.CreatePolyline(ellipse, AttributeFlags.AllAttributes));
var elpElm = ElementFactory.Instance.CreateGraphicElement(
container, poly, ellipseSym, "New Ellipse");
Create Lasso Polygon, Freehand Element
//Must be on QueuedTask.Run(() => { ...
List<Coordinate2D> plyCoords = new List<Coordinate2D>();
plyCoords.Add(new Coordinate2D(1, 1));
plyCoords.Add(new Coordinate2D(1.25, 2));
plyCoords.Add(new Coordinate2D(1.5, 1.1));
plyCoords.Add(new Coordinate2D(1.75, 2));
plyCoords.Add(new Coordinate2D(2, 1.1));
plyCoords.Add(new Coordinate2D(2.25, 2));
plyCoords.Add(new Coordinate2D(2.5, 1.1));
plyCoords.Add(new Coordinate2D(2.75, 2));
plyCoords.Add(new Coordinate2D(3, 1));
Polygon poly = PolygonBuilderEx.CreatePolygon(plyCoords);
//Set symbology, create and add element to layout
CIMStroke outline = SymbolFactory.Instance.ConstructStroke(
ColorFactory.Instance.BlackRGB, 2.0, SimpleLineStyle.Solid);
CIMPolygonSymbol polySym = SymbolFactory.Instance.ConstructPolygonSymbol(
ColorFactory.Instance.RedRGB, SimpleFillStyle.ForwardDiagonal, outline);
ElementFactory.Instance.CreateGraphicElement(
container, poly, polySym, "New Lasso");
Create rectangle graphic with simple symbology
//Create a simple 2D rectangle graphic and apply simple fill and
//outline symbols.
//Construct on the worker thread
await QueuedTask.Run(() =>
{
//Build 2D envelope geometry
Coordinate2D rec_ll = new Coordinate2D(1.0, 4.75);
Coordinate2D rec_ur = new Coordinate2D(3.0, 5.75);
//At 2.x - Envelope rec_env = EnvelopeBuilder.CreateEnvelope(rec_ll, rec_ur);
Envelope rec_env = EnvelopeBuilderEx.CreateEnvelope(rec_ll, rec_ur);
//Set symbology, create and add element to layout
CIMStroke outline = SymbolFactory.Instance.ConstructStroke(
ColorFactory.Instance.BlackRGB, 5.0, SimpleLineStyle.Solid);
CIMPolygonSymbol polySym = SymbolFactory.Instance.ConstructPolygonSymbol(
ColorFactory.Instance.GreenRGB, SimpleFillStyle.DiagonalCross, outline);
//At 2.x - GraphicElement recElm =
// LayoutElementFactory.Instance.CreateRectangleGraphicElement(
// layout, rec_env, polySym);
// recElm.SetName("New Rectangle");
//
GraphicElement recElm = ElementFactory.Instance.CreateGraphicElement(
container, rec_env, polySym, "New Rectangle");
//Or use Predefined shape
GraphicElement recElm2 = ElementFactory.Instance.CreatePredefinedShapeGraphicElement(
container, PredefinedShape.Rectangle, rec_env, polySym,
"New Rectangle2");
});
How to construct a polygon symbol of specific color and fill style
CIMPolygonSymbol polygonSymbol = SymbolFactory.Instance.ConstructPolygonSymbol(ColorFactory.Instance.RedRGB, SimpleFillStyle.Solid);
How to construct a polygon symbol of specific color, fill style and outline
CIMStroke outline = SymbolFactory.Instance.ConstructStroke(ColorFactory.Instance.BlueRGB, 2.0, SimpleLineStyle.Solid);
CIMPolygonSymbol fillWithOutline = SymbolFactory.Instance.ConstructPolygonSymbol(ColorFactory.Instance.RedRGB, SimpleFillStyle.Solid, outline);
How to construct a polygon symbol without an outline
CIMPolygonSymbol fillWithoutOutline = SymbolFactory.Instance.ConstructPolygonSymbol(ColorFactory.Instance.RedRGB, SimpleFillStyle.Solid, null);
Snippet Cross hatch
/// <summary>
/// Create a polygon symbol using the ConstructHatchFill method . <br/>
/// 
/// </summary>
/// <returns></returns>
private static Task<CIMPolygonSymbol> CreateHatchFillPolygonAsync()
{
return QueuedTask.Run<CIMPolygonSymbol>(() =>
{
CIMStroke lineStroke = SymbolFactory.Instance.ConstructStroke(CIMColor.CreateRGBColor(51, 51, 51, 60), 4, SimpleLineStyle.Solid);
//gradient
var hatchFill = SymbolFactory.Instance.ConstructHatchFill(lineStroke, 45, 6, 0);
List<CIMSymbolLayer> symbolLayers = new List<CIMSymbolLayer>
{
hatchFill
};
return new CIMPolygonSymbol() { SymbolLayers = symbolLayers.ToArray() };
});
}
Target Platforms: Windows 11, Windows 10
ArcGIS Pro version: 3 or higher.