using GeoSigmaDrawLib;
using System;
using System.Collections.Generic;
using System.Linq;
using System.Runtime.InteropServices;
using System.Text;
using System.Threading.Tasks;

namespace QuikGridCS
{
    public class Interface
    {
        /// <summary>
        /// 快速网格化算法生成网格.
        /// </summary>
        /// <param name="inputFile">输入的散点文件.</param>
        /// <param name="outputFile">输出结果文件.</param>
        /// <param name="xCount">The x count.</param>
        /// <param name="yCount">The y count.</param>
        /// <param name="contourSpace">The contour space.</param>
        /// <param name="contourLable">The contour lable.</param>
        /// <returns>A bool.</returns>
        public static bool QuikGridCreate(string inputFile,string outputFile, int xCount, int yCount, double contourSpace, int contourLable, double smoothFactor)
        {
            if (Interface.QuikGridFromFile(inputFile, xCount, xCount) == true)
            {
                Interface.QuikGridGenerateGrid();
                double xMin = 0;
                double xMax = 0;
                double yMin = 0;
                double yMax = 0;
                int countX = 0;
                int countY = 0;
                double zMin = 0;
                double zMax = 0;

                int nReturn = Interface.QuikGridGetView(ref xMin, ref xMax, ref yMin, ref yMax, ref countX, ref countY, ref zMin, ref zMax);
                if (nReturn == 0)
                {
                    return false;
                }
                double dStepX = (xMax - xMin) / (countX - 1);
                double dStepY = (yMax - yMin) / (countY - 1);
                //string strFileOut = this.txtOutput.Text;
                //if (!string.IsNullOrEmpty(strFileOut))
                //{
                //    Interface.QuikGridSaveFileGrd(strFileOut);
                //}
                string strFileKev = outputFile;
                if (!string.IsNullOrEmpty(strFileKev))
                {
                    IntPtr ptrValues = Interface.QuikGridGridValue();

                    DrawerData drawer = new DrawerData();
                    long pos = drawer.CreateMesh("背景", ptrValues, xMin, yMin, countX, countY, dStepX, dStepY, zMin, zMax);

                    if (smoothFactor > 0.001)
                    {
                        drawer.MeshSmooth(pos, smoothFactor);
                    }
                    if (contourSpace > 0 && contourLable > 0)
                    {
                        drawer.CreateContour(pos, contourSpace, contourLable);
                    }

                    drawer.SaveAs(strFileKev);
                    drawer.Dispose();
                    // 释放数据指针
                    GeoSigmaLib.PointerArrayDelete(ptrValues);
                }
                return true;
            }
            return false;
        }
#if DEBUG
        const string SIGMALIB = "QUIKGRIDLIB.dll";
#else
        const string SIGMALIB = "QuikGridLib.dll";
#endif


        [DllImport(SIGMALIB, EntryPoint = "QuikGridLoadFileXyz", ExactSpelling = false, CallingConvention = CallingConvention.Cdecl)]
        public static extern int QuikGridLoadFileXyz(string fileName);
        [DllImport(SIGMALIB, EntryPoint = "QuikGridFromFile", ExactSpelling = false, CallingConvention = CallingConvention.Cdecl)]
        public static extern bool QuikGridFromFile(string fileName, int xCount, int yCount);

        [DllImport(SIGMALIB, EntryPoint = "QuikGridGetView", ExactSpelling = false, CallingConvention = CallingConvention.Cdecl)]
        public static extern int QuikGridGetView(ref double xMin, ref double xMax, ref double yMin, ref double yMax
            , ref int countX, ref int countY, ref double zMin, ref double zMax);

        [DllImport(SIGMALIB, EntryPoint = "QuikGridGenerateGrid", ExactSpelling = false, CallingConvention = CallingConvention.Cdecl)]
        public static extern bool QuikGridGenerateGrid();

        [DllImport(SIGMALIB, EntryPoint = "QuikGridSaveFileGrd", ExactSpelling = false, CallingConvention = CallingConvention.Cdecl)]
        public static extern int QuikGridSaveFileGrd(string fileName);
        [DllImport(SIGMALIB, EntryPoint = "QuikGridGridValue", ExactSpelling = false, CallingConvention = CallingConvention.Cdecl)]
        public static extern IntPtr QuikGridGridValue();

        [DllImport(SIGMALIB, EntryPoint = "QuikGridRecreate", ExactSpelling = false, CallingConvention = CallingConvention.Cdecl)]
        public static extern bool QuikGridRecreate(int xCount, int yCount);
    }
}