fl-knowledge/LP/MapData.cs

using System;
using System.Collections.Generic;
using System.Linq;
using AxMapWinGIS;
using MapWinGIS;

namespace LP;

public class MapData
{
	public List<double> mListX = null;

	public List<double> mListY = null;

	public double mMinX = 0.0;

	public double mMaxX = 0.0;

	public double mMinY = 0.0;

	public double mMaxY = 0.0;

	public double mBS = 1.0;

	public MapData()
	{
		Init_ListX_ListY();
		Clear_ListX_ListY();
	}

	private void Init_ListX_ListY()
	{
		if (mListX == null)
		{
			mListX = new List<double>();
		}
		if (mListY == null)
		{
			mListY = new List<double>();
		}
	}

	private void Clear_ListX_ListY()
	{
		Init_ListX_ListY();
		mListX.Clear();
		mListY.Clear();
	}

	public void SetXY_OneLine(List<double> _listX, List<double> _listY)
	{
		Clear_ListX_ListY();
		int count = _listX.Count;
		int count2 = _listY.Count;
		int num = ((count < count2) ? count : count2);
		for (int i = 0; i < num; i++)
		{
			mListX.Add(_listX[i]);
			mListY.Add(_listY[i]);
		}
	}

	public void SetXY_OneLine(double[] _arrX, double[] _arrY)
	{
		Clear_ListX_ListY();
		int num = _arrX.Length;
		int num2 = _arrY.Length;
		int num3 = ((num < num2) ? num : num2);
		for (int i = 0; i < num3; i++)
		{
			mListX.Add(_arrX[i]);
			mListY.Add(_arrY[i]);
		}
	}

	private void SenJi()
	{
		mBS = 1.0;
		if (mListX.Count == 0)
		{
			mMaxX = (mMinX = (mMaxY = (mMinY = 0.0)));
			return;
		}
		if (mListX.Count == 1)
		{
			mMaxX = (mMinX = mListX[0]);
			mMaxY = (mMinY = mListY[0]);
			return;
		}
		mMaxX = mListX.Max();
		mMinX = mListX.Min();
		mMaxY = mListY.Max();
		mMinY = mListY.Min();
		double num = Math.Abs(mMaxX - mMinX);
		double num2 = Math.Abs(mMaxY - mMinY);
		double num3 = num;
		if (num3 < num2)
		{
			num3 = num2;
		}
		if (!(num3 < 1E-20))
		{
			mBS = 1000.0 / num3;
		}
	}

	public Shapefile CreateShapefile()
	{
		SenJi();
		Shapefile shapefile = new ShapefileClass();
		shapefile.CreateNew("", ShpfileType.SHP_POLYLINE);
		Shape shape = new ShapeClass();
		shape.Create(ShpfileType.SHP_POLYLINE);
		Point point = null;
		int num = 0;
		for (int i = 0; i < mListX.Count; i++)
		{
			point = new PointClass();
			point.x = (mListX[i] - mMinX) * mBS;
			point.y = (mListY[i] - mMinY) * mBS;
			num = shape.numPoints;
			shape.InsertPoint(point, ref num);
		}
		num = shapefile.NumShapes;
		shapefile.EditInsertShape(shape, ref num);
		return shapefile;
	}

	public Shapefile CreatePoints_forLine()
	{
		SenJi();
		Shapefile shapefile = new ShapefileClass();
		shapefile.CreateNew("", ShpfileType.SHP_POINTM);
		Shape shape = new ShapeClass();
		shape.Create(ShpfileType.SHP_POINTM);
		Point point = null;
		int num = 0;
		for (int i = 0; i < mListX.Count; i++)
		{
			point = new PointClass();
			point.x = (mListX[i] - mMinX) * mBS;
			point.y = (mListY[i] - mMinY) * mBS;
			num = shape.numPoints;
			shape.InsertPoint(point, ref num);
		}
		num = shapefile.NumShapes;
		shapefile.EditInsertShape(shape, ref num);
		return shapefile;
	}

	private void AddRing(bool clockWise, double x, double y, double radius, ref Shape shp)
	{
		int PartIndex = shp.NumParts;
		if (shp.numPoints > 0)
		{
			shp.InsertPart(shp.numPoints, ref PartIndex);
		}
		int num = 0;
		double num2 = 0.0;
		double num3 = 0.0;
		for (int i = 0; i < 37; i++)
		{
			num2 = radius * Math.Cos((double)i * Math.PI / 18.0);
			num3 = radius * Math.Sin((double)i * Math.PI / 18.0);
			num3 *= (double)((!clockWise) ? 1 : (-1));
			Point point = new PointClass();
			point.x = x + num2;
			point.y = y + num3;
			num = shp.numPoints;
			shp.InsertPoint(point, ref num);
		}
	}

	public Shapefile CreatePoints_forLine_Ring(int _currentZoom)
	{
		SenJi();
		Shapefile shapefile = new ShapefileClass();
		shapefile.CreateNewWithShapeID("", ShpfileType.SHP_POLYGON);
		double num = 0.0;
		double num2 = 0.0;
		double num3 = 6.0;
		switch (_currentZoom)
		{
		case 20:
			num3 = 2.0;
			break;
		case 19:
			num3 = 4.0;
			break;
		case 18:
			num3 = 5.0;
			break;
		case 17:
			num3 = 6.0;
			break;
		case 16:
			num3 = 8.0;
			break;
		case 15:
			num3 = 9.0;
			break;
		case 14:
			num3 = 10.0;
			break;
		case 13:
			num3 = 12.0;
			break;
		case 12:
			num3 = 14.0;
			break;
		case 11:
			num3 = 16.0;
			break;
		case 10:
			num3 = 18.0;
			break;
		case 9:
			num3 = 20.0;
			break;
		case 8:
			num3 = 25.0;
			break;
		case 7:
			num3 = 30.0;
			break;
		case 6:
			num3 = 40.0;
			break;
		case 5:
			num3 = 50.0;
			break;
		case 4:
			num3 = 60.0;
			break;
		case 3:
			num3 = 70.0;
			break;
		case 2:
			num3 = 80.0;
			break;
		case 1:
			num3 = 90.0;
			break;
		}
		num3 = (int)(num3 * 1.3);
		int num4 = 0;
		for (int i = 0; i < mListX.Count; i++)
		{
			Shape shp = new ShapeClass();
			shp.Create(ShpfileType.SHP_POLYGON);
			num = (mListX[i] - mMinX) * mBS;
			num2 = (mListY[i] - mMinY) * mBS;
			AddRing(clockWise: true, num, num2, num3, ref shp);
			num4 = shapefile.NumShapes;
			shapefile.EditInsertShape(shp, ref num4);
		}
		return shapefile;
	}

	public void DrawLine(ref AxMap axMap)
	{
		int num = 0;
		Shapefile shapefile = CreateShapefile();
		num = axMap.AddLayer(shapefile, visible: true);
		Utils utils = new UtilsClass();
		axMap.ZoomToLayer(num);
		LinePattern linePattern = null;
		linePattern = new LinePatternClass();
		linePattern.AddLine(utils.ColorByName(tkMapColor.Gray), 6f, tkDashStyle.dsSolid);
		linePattern.AddLine(utils.ColorByName(tkMapColor.LightGray), 4f, tkDashStyle.dsSolid);
		ShapefileCategory shapefileCategory = shapefile.Categories.Add("River");
		shapefileCategory.DrawingOptions.LinePattern = linePattern;
		shapefileCategory.DrawingOptions.UseLinePattern = true;
		((IShapefile)shapefile).set_ShapeCategory(0, 0);
		shapefile = CreatePoints_forLine_Ring(axMap.CurrentZoom);
		num = axMap.AddLayer(shapefile, visible: true);
		axMap.ZoomToLayer(num);
	}
}