Question

我想在这张图片上的表格上画一个圆。

但是我完全不熟悉C＃中的图形。

我在互联网上的这张图片源代码中找到了。但是源不起作用。我想有些地方被省略了。

我检查了源代码，但是真的很难弄清楚我必须解决的问题。

我想做的是自动从 X.0至X.200 Y.0至Y200

，这是来源。如果有人提出了建议或解决方法，将不胜感激！

using System;
using System.Numerics;
using System.Collections.Generic;
using System.Windows.Forms;
using System.Linq;
using System.Drawing.Drawing2D;
using System.Drawing;

namespace BedLeveler
{
    public partial class BedLeveler : Form
    {
        PrinterPort port;
        List<Vector3> points = new List<Vector3>();
        List<Vector2> toMeasure = new List<Vector2>();

        float? LowerBound = null;
        float? UpperBound = null;

        public BedLeveler()
        {
            InitializeComponent();
            Text += $" {Application.ProductVersion}";
        }

        private void MeasurePoint(float x, float y)
        {
            if (port == null) return;
            port.Send("G90");
            port.Send($"G1 X{x} Y{y} Z1 F5000");
            port.Send("G30");
        }

        private void MeasureNextPoint()
        {
            if (port == null) return;
            if (toMeasure.Count == 0) return;

            Vector2 current = new Vector2(75, 75);
            if (points.Count > 0) current = (from p in points select new Vector2(p.X, p.Y)).Last();

            var next = (from p in toMeasure let distSq = (current.X - p.X) * (current.X - p.X) + (current.Y - p.Y) * (current.Y - p.Y) orderby distSq select p).First();

            toMeasure.Remove(next);

            // If we've already measured it, don't measure it again
            if ((from p in points where p.X == next.X && p.Y == next.Y select p).Any()) MeasureNextPoint();
            else MeasurePoint(next.X, next.Y);
        }

        private void DataReceived(string s)
        {
            if (s.StartsWith("ok") && s.Length < 4) return;

            Invoke(new Action(() => {
                outputText.AppendText(s);
                outputText.AppendText(Environment.NewLine);
                outputText.ScrollToCaret();

                // "Bed Position X: 13.00 Y: 10.00 Z: 0.10"
                if (!s.StartsWith("Bed Position")) return;

                var tokens = s.Split(' ');
                if (tokens.Length != 8) return;

                float x = float.Parse(tokens[3]);
                float y = float.Parse(tokens[5]);
                float z = float.Parse(tokens[7]);
                points.Add(new Vector3(x, y, z));

                MeasureNextPoint();

                bedPicture.Invalidate();
            }));
        }

        private void ConnectButton_Click(object sender, EventArgs e)
        {
            if (port == null) port = new PrinterPort(portText.Text, DataReceived);
            connectButton.Enabled = false;
            disconnectButton.Enabled = true;
            statusLabel.Text = $"Connected to {portText.Text}";

            ClearClicked(this, new EventArgs());
        }

        private void DisconnectButton_Click(object sender, EventArgs e)
        {
            if (port == null) return;
            port.Dispose();
            port = null;

            disconnectButton.Enabled = false;
            connectButton.Enabled = true;
            statusLabel.Text = "Not connected";
        }

        private const int Radius = 20;

        private Vector2 ToPhysical(int x, int y)
        {
            float pX = Math.Max(0.0f, Math.Min(200.0f, 200.0f * (x-Radius) / (bedPicture.Width - 2*Radius)));
            float pY = Math.Max(0.0f, Math.Min(200.0f, 200.0f * ((bedPicture.Height - y) - Radius) / (bedPicture.Height - 2*Radius)));
            return new Vector2(pX, pY);
        }
        private Point FromPhysical(float x, float y)
        {
            return new Point((int)((bedPicture.Width - 2*Radius) * x / 200.0f) + Radius, (int)((bedPicture.Height - 2*Radius) * (200.0f - y) / 200.0f) + Radius);
        }

        public static Color ColorFromHSV(double hue, double saturation, double value)
        {
            int hi = Convert.ToInt32(Math.Floor(hue / 60)) % 6;
            double f = hue / 60 - Math.Floor(hue / 60);

            value = value * 255;
            int v = Convert.ToInt32(value);
            int p = Convert.ToInt32(value * (1 - saturation));
            int q = Convert.ToInt32(value * (1 - f * saturation));
            int t = Convert.ToInt32(value * (1 - (1 - f) * saturation));

            if (hi == 0) return Color.FromArgb(255, v, t, p);
            else if (hi == 1) return Color.FromArgb(255, q, v, p);
            else if (hi == 2) return Color.FromArgb(255, p, v, t);
            else if (hi == 3) return Color.FromArgb(255, p, q, v);
            else if (hi == 4) return Color.FromArgb(255, t, p, v);
            else return Color.FromArgb(255, v, p, q);
        }

        float Lerp(float a, float b, float by) { return a * by + b * (1 - by); }

        private void BedPaint(object sender, PaintEventArgs e)
        {
            Graphics g = e.Graphics;
            g.Clear(Color.Black);
            g.CompositingQuality = CompositingQuality.HighQuality;
            g.SmoothingMode = SmoothingMode.HighQuality;

            if (points.Count == 0) return;

            float min = (from p in points select p.Z).Min();
            float max = (from p in points select p.Z).Max();
            if (LowerBound.HasValue) min = LowerBound.Value;
            if (UpperBound.HasValue) max = UpperBound.Value;

            float range = max - min;

            using (Font font = new Font("Arial", 11.0f, FontStyle.Bold))
            using (StringFormat format = new StringFormat() { Alignment = StringAlignment.Center, LineAlignment = StringAlignment.Center })
            foreach (var p in points)
            {
                float zPercent = Math.Max(0.0f, Math.Min(1.0f, range < 0.001 ? 1.0f : (p.Z - min) / range));
                float hue = Lerp(0, 240, zPercent);
                Color c = ColorFromHSV(hue, 1.0, 1.0);

                Point pt = FromPhysical(p.X, p.Y);
                pt.Offset(-Radius, -Radius);

                using (GraphicsPath path = new GraphicsPath())
                {
                    var rect = new Rectangle(pt, new Size(2 * Radius, 2 * Radius));
                    path.AddEllipse(rect);

                    using (var b = new SolidBrush(c)) g.FillPath(b, path);

                    g.SetClip(path);
                    g.DrawString(p.Z.ToString("0.00"), font, Brushes.Black, rect, format);
                    g.ResetClip();
                }
            }
        }

        private void BedClick(object sender, MouseEventArgs e)
        {
            // Clicking the bed interrupts patterns
            toMeasure.Clear();

            var physical = ToPhysical(e.X, e.Y);
            MeasurePoint(physical.X, physical.Y);
            //BedPaint();
        }

        private void ClearClicked(object sender, EventArgs e)
        {
            // Clearing all measurements interrupts patterns
            toMeasure.Clear();

            points.Clear();
            bedPicture.Invalidate();

            if (port != null)
            {
                port.Send("G28");
                port.Send("G30");
            }
        }

        private void GeneratePattern(object sender, EventArgs e)
        {
            toMeasure.Clear();

            var tag = ((ToolStripMenuItem)sender).Tag as string;
            if (tag == null) return;

            int steps = int.Parse(tag);
            float step = 200.0f / (steps - 1);

            for (int i = 0; i < steps; ++i)
                for (int j = 0; j < steps; ++j)
                    toMeasure.Add(new Vector2(i * step, j * step));

            MeasureNextPoint();
        }

        private void BedLeveler_FormClosing(object sender, FormClosingEventArgs e)
        {
            if (port != null)
            {
                port.Dispose();
                port = null;
            }
        }

        private void MeasureCorners(object sender, EventArgs e)
        {
            // Clearing all measurements interrupts patterns
            toMeasure.Clear();

            if (port != null)
            {
                port.Send("G1 Y200 X0 Z2 F6000"); port.Send("G30");
                port.Send("G1 X0 Y0 Z2 F6000"); port.Send("G30");
                port.Send("G1 Y0 X200 Z2 F6000"); port.Send("G30");
                port.Send("G1 Y200 X200 Z2 F6000"); port.Send("G30");
            }
        }

        private void SetZto5(object sender, EventArgs e)
        {
            if (port != null) port.Send("G1 Z5 F6000");
        }

        private void SetBound(object sender, EventArgs e)
        {
            var tag = ((ToolStripMenuItem)sender).Tag as string;

            float? current = null;
            if (tag.StartsWith("L")) current = LowerBound;
            else current = UpperBound;

            string input = Microsoft.VisualBasic.Interaction.InputBox($"Choose a {tag} Bound for color selection.  Leave blank to reset to automatic bound.  This is for visualization only (to match against subsequent scans).", $"Set {tag} Color Bound", current?.ToString() ?? "");

            if (string.IsNullOrWhiteSpace(input))
            {
                if (tag.StartsWith("L")) LowerBound = null;
                else UpperBound = null;
            }
            else if (float.TryParse(input, out float value))
            {
                if (tag.StartsWith("L")) LowerBound = value;
                else UpperBound = value;
            }

            bedPicture.Invalidate();
        }

        private void bedPicture_Click(object sender, EventArgs e)
        {

        }
    }
}

Answer 1

using System.Drawing;
using System.Windows.Forms;

namespace EriaSDK.FormTest
{
    public partial class Form1 : Form
    {
        public Form1()
        {
            InitializeComponent();
        }

        private void Form1_Paint(object sender, PaintEventArgs e)
        {
            e.Graphics.DrawEllipse(new Pen(Color.Red, 1), new Rectangle(0, 0, 200, 200));
        }
    }
}

很容易在表格上画一个圆。但这似乎是一个铣削程序，您应该将字符串拼接到机器上，而不是表格上。

如何在表格上画圆？

1 个答案: