formsimrend.cs

运用ArcEngine9.2结合C#开发的gis系统

using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Text;
using System.Windows.Forms;
using ESRI.ArcGIS.Carto;
using ESRI.ArcGIS.Display;

namespace WindowsApplication1
{
    public partial class formsimrend : Form
    {
        public IMap pMap;
        public formsimrend()
        {
            InitializeComponent();
        }
        public void renderer()
        {
            IGeoFeatureLayer pGeoFeatureL;
            ISimpleRenderer pSimpleRenderer;
            IFillSymbol pSimpleFills;
            ILineSymbol pLineSymbol;
            pSimpleFills = new SimpleFillSymbolClass();
            pGeoFeatureL = (IGeoFeatureLayer)pMap.get_Layer(0);

            IRgbColor pRgbColor = new RgbColorClass();
            pRgbColor = new RgbColorClass();


            if (colorDialog1.ShowDialog() == DialogResult.OK)
            {
                pRgbColor.Red = colorDialog1.Color.R;
                pRgbColor.Green = colorDialog1.Color.G;
                pRgbColor.Blue = colorDialog1.Color.B;
                pSimpleFills.Color = GetRGB(colorDialog1.Color.R, colorDialog1.Color.G, colorDialog1.Color.B);
            }
            else return;


            pLineSymbol = new SimpleLineSymbolClass();
            pLineSymbol.Color = GetRGB(0, 0, 0);
            pLineSymbol.Width = 1;
            pSimpleFills.Outline = pLineSymbol;

            pSimpleRenderer = new SimpleRendererClass();
            pSimpleRenderer.Symbol = (ISymbol)pSimpleFills;

            pGeoFeatureL.Renderer = (IFeatureRenderer)pSimpleRenderer;
        }

        private IRgbColor GetRGB(int R, int G, int B)
        {
            IRgbColor pRGB;
            pRGB = new RgbColorClass();
            pRGB.Red = R;
            pRGB.Green = G;
            pRGB.Blue = B;
            return pRGB;
        }

       
     
    }
}