SharpMap/Examples/ExampleCodeSnippets/LineSymbolizerTest.cs at main · SharpMap/SharpMap · GitHub

Repository navigation

History

413 lines (347 loc) · 17.9 KB

Raw

100

101

102

103

104

105

106

107

108

109

110

111

112

113

114

115

116

117

118

119

120

121

122

123

124

125

126

127

128

129

130

131

132

133

134

135

136

137

138

139

140

141

142

143

144

145

146

147

148

149

150

151

152

153

154

155

156

157

158

159

160

161

162

163

164

165

166

167

168

169

170

171

172

173

174

175

176

177

178

179

180

181

182

183

184

185

186

187

188

189

190

191

192

193

194

195

196

197

198

199

200

201

202

203

204

205

206

207

208

209

210

211

212

213

214

215

216

217

218

219

220

221

222

223

224

225

226

227

228

229

230

231

232

233

234

235

236

237

238

239

240

241

242

243

244

245

246

247

248

249

250

251

252

253

254

255

256

257

258

259

260

261

262

263

264

265

266

267

268

269

270

271

272

273

274

275

276

277

278

279

280

281

282

283

284

285

286

287

288

289

290

291

292

293

294

295

296

297

298

299

300

301

302

303

304

305

306

307

308

309

310

311

312

313

314

315

316

317

318

319

320

321

322

323

324

325

326

327

328

329

330

331

332

333

334

335

336

337

338

339

340

341

342

343

344

345

346

347

348

349

350

351

352

353

354

355

356

357

358

359

360

361

362

363

364

365

366

367

368

369

370

371

372

373

374

375

376

377

378

379

380

381

382

383

384

385

386

387

388

389

390

391

392

393

394

395

396

397

398

399

400

401

402

403

404

405

406

407

408

409

410

411

412

413

namespace ExampleCodeSnippets

{

/// <summary>

/// A (simple) street direction symbolizer

/// </summary>

public class StreetDirectionSymbolizer : SharpMap.Rendering.Symbolizer.BaseSymbolizer,

SharpMap.Rendering.Symbolizer.ILineSymbolizer

{

/// <summary>

/// Creates an instance of this class

/// </summary>

public StreetDirectionSymbolizer()

{

RepeatInterval = 500;

ArrowLength = 100;

ArrowPen = new System.Drawing.Pen(System.Drawing.Color.Black, 2)

{

EndCap = System.Drawing.Drawing2D.LineCap.ArrowAnchor

};

}

/// <summary>

/// Method to place the street direction symbols

/// </summary>

/// <param name="map"></param>

/// <param name="lineString"></param>

/// <param name="graphics"></param>

private void OnRenderInternal(SharpMap.MapViewport map, GeoAPI.Geometries.ILineString lineString,

System.Drawing.Graphics graphics)

{

var length = lineString.Length;

var lil = new NetTopologySuite.LinearReferencing.LengthIndexedLine(lineString);

if (length < RepeatInterval + ArrowLength)

{

var start = System.Math.Max(0, (length - ArrowLength)/2);

var end = System.Math.Min(length, (length + ArrowLength)/2);

var arrow = (GeoAPI.Geometries.ILineString) lil.ExtractLine(start, end);

RenderArrow(map, graphics, arrow);

return;

}

var numArrows = (int) ((lineString.Length - ArrowLength)/RepeatInterval);

var offset = (lineString.Length - numArrows*RepeatInterval - ArrowLength)*0.5;

while (offset + ArrowLength < lineString.Length)

{

var arrow = (GeoAPI.Geometries.ILineString) lil.ExtractLine(offset, offset + ArrowLength);

RenderArrow(map, graphics, arrow);

offset += RepeatInterval;

}

/// <summary>

/// Method to render the arrow

/// </summary>

/// <param name="map">The map</param>

/// <param name="graphics">The graphics object</param>

/// <param name="arrow">The arrow</param>

private void RenderArrow(SharpMap.MapViewport map, System.Drawing.Graphics graphics, GeoAPI.Geometries.ILineString arrow)

{

var pts = new System.Drawing.PointF[arrow.Coordinates.Length];

for (var i = 0; i < pts.Length; i++)

pts[i] = map.WorldToImage(arrow.GetCoordinateN(i));

graphics.DrawLines(ArrowPen, pts);

}

/// <summary>

/// Gets or sets a value indicating at which distances a street direction marker should be drawn.

/// </summary>

public double RepeatInterval { get; set; }

/// <summary>

/// Gets or sets a value indicating the length of the street direction arrow.

/// </summary>

public double ArrowLength { get; set; }

/// <summary>

/// Gets or sets a value indicating the pen to use when drawing the marker

/// </summary>

public System.Drawing.Pen ArrowPen { get; set; }

public override void Begin(System.Drawing.Graphics g, SharpMap.MapViewport map, int aproximateNumberOfGeometries)

{

base.Begin(g, map, aproximateNumberOfGeometries);

//Adjust Arrow cap

var size = (float) (ArrowLength/5/map.PixelWidth);

ArrowPen.CustomEndCap = new System.Drawing.Drawing2D.AdjustableArrowCap(size, size);

}

public void Render(SharpMap.MapViewport map, GeoAPI.Geometries.ILineal geometry, System.Drawing.Graphics graphics)

{

if (geometry is GeoAPI.Geometries.IMultiLineString)

{

var mls = (GeoAPI.Geometries.IMultiLineString) geometry;

for (var i = 0; i < mls.Count; i++)

{

OnRenderInternal(map, (GeoAPI.Geometries.ILineString) mls.GetGeometryN(i), graphics);

}

return;

}

OnRenderInternal(map, (GeoAPI.Geometries.ILineString) geometry, graphics);

}

protected override void ReleaseManagedResources()

{

base.ReleaseManagedResources();

ArrowPen.Dispose();

}

public override object Clone()

{

var res = (StreetDirectionSymbolizer) MemberwiseClone();

res.ArrowPen = new System.Drawing.Pen(((System.Drawing.SolidBrush) ArrowPen.Brush).Color, ArrowPen.Width);

return res;

}

public class LineSymbolizerTest

{

[NUnit.Framework.OneTimeSetUp]

public void OneTimeSetUp()

{

GeoAPI.GeometryServiceProvider.Instance = NetTopologySuite.NtsGeometryServices.Instance;

}

[NUnit.Framework.Test]

public void TestBasicLineSymbolizer()

{

if (!System.IO.File.Exists("d:\\daten\\GeoFabrik\\roads.shp"))

throw new NUnit.Framework.IgnoreException("");

var p = new SharpMap.Data.Providers.ShapeFile(@"d:\\daten\\GeoFabrik\\roads.shp", false);

var l = new SharpMap.Layers.VectorLayer("roads", p);

//l.Style.Outline = new System.Drawing.Pen(System.Drawing.Color.Firebrick, 5);

l.Style.Line = new System.Drawing.Pen(System.Drawing.Color.Gold, 1);

l.Style.EnableOutline = false;

var m = new SharpMap.Map(new System.Drawing.Size(1440,1080)) {BackColor = System.Drawing.Color.Cornsilk};

m.Layers.Add(l);

m.ZoomToExtents();

var sw = new System.Diagnostics.Stopwatch();

sw.Start();

m.GetMap();

sw.Stop();

System.Console.WriteLine(string.Format("Rendering old method: {0}ms", sw.ElapsedMilliseconds));

sw.Reset();

sw.Start();

var bmp = m.GetMap();

sw.Stop();

System.Console.WriteLine(string.Format("Rendering old method: {0}ms", sw.ElapsedMilliseconds));

bmp.Save("NDSRoads1.bmp");

var cls = new SharpMap.Rendering.Symbolizer.CachedLineSymbolizer();

//cls.LineSymbolizeHandlers.Add(new SharpMap.Rendering.Symbolizer.PlainLineSymbolizeHandler { Line = new System.Drawing.Pen(System.Drawing.Color.Firebrick, 5) });

cls.LineSymbolizeHandlers.Add(new SharpMap.Rendering.Symbolizer.PlainLineSymbolizeHandler { Line = new System.Drawing.Pen(System.Drawing.Color.Gold, 1) });

l.Style.LineSymbolizer = cls;

sw.Reset(); sw.Start();

bmp = m.GetMap();

sw.Stop();

System.Console.WriteLine(string.Format("Rendering new method: {0}ms", sw.ElapsedMilliseconds));

bmp.Save("NDSRoads2.bmp");

}

[NUnit.Framework.Test]

public void TestStreetDirectionSymbolizer()

{

if (!System.IO.File.Exists("d:\\daten\\GeoFabrik\\Aurich\\roads.shp"))

throw new NUnit.Framework.IgnoreException("");

var p = new SharpMap.Data.Providers.ShapeFile(@"d:\\daten\\GeoFabrik\\Aurich\\roads.shp", false);

var l = new SharpMap.Layers.VectorLayer("roads", p);

l.Style.Outline = new System.Drawing.Pen(System.Drawing.Color.Firebrick, 7);

l.Style.Line = new System.Drawing.Pen(System.Drawing.Color.Gold, 3);

l.Style.EnableOutline = true;

var sd = new SharpMap.Layers.Symbolizer.LinealVectorLayer("streetd", p, new StreetDirectionSymbolizer()

{

ArrowLength = 100, RepeatInterval = 500

});

var m = new SharpMap.Map(new System.Drawing.Size(1440, 1080)) { BackColor = System.Drawing.Color.Cornsilk };

m.Layers.Add(l);

m.Layers.Add(sd);

m.ZoomToExtents();

m.Zoom *= 0.3;

var sw = new System.Diagnostics.Stopwatch();

sw.Start();

var bmp = m.GetMap();

sw.Stop();

System.Console.WriteLine(string.Format("Rendering new method: {0}ms", sw.ElapsedMilliseconds));

bmp.Save("NDSRoadsSD.bmp");

}

[NUnit.Framework.Test]

public void TestWarpedLineSymbolizer()

{

if (!System.IO.File.Exists("d:\\daten\\GeoFabrik\\Aurich\\roads.shp"))

throw new NUnit.Framework.IgnoreException("");

var p = new SharpMap.Data.Providers.ShapeFile(@"d:\\daten\\GeoFabrik\\Aurich\\roads.shp", false);

var l = new SharpMap.Layers.VectorLayer("roads", p);

var cls = new SharpMap.Rendering.Symbolizer.CachedLineSymbolizer();

cls.LineSymbolizeHandlers.Add(new SharpMap.Rendering.Symbolizer.PlainLineSymbolizeHandler

{Line = new System.Drawing.Pen(System.Drawing.Color.Gold, 2)});

var wls = new SharpMap.Rendering.Symbolizer.WarpedLineSymbolizeHander

{

Pattern =

SharpMap.Rendering.Symbolizer.WarpedLineSymbolizer.

GetGreaterSeries(3, 3),

Line = new System.Drawing.Pen(System.Drawing.Color.Firebrick, 1)

, Interval = 20

};

cls.LineSymbolizeHandlers.Add(wls);

l.Style.LineSymbolizer = cls;

var m = new SharpMap.Map(new System.Drawing.Size(720, 540)) {BackColor = System.Drawing.Color.Cornsilk};

m.Layers.Add(l);

m.ZoomToExtents();

var sw = new System.Diagnostics.Stopwatch();

sw.Start();

var bmp = m.GetMap();

sw.Stop();

System.Console.WriteLine(string.Format("Rendering new method: {0}ms", sw.ElapsedMilliseconds));

bmp.Save("AurichRoads1.bmp");

cls.LineSymbolizeHandlers[1] = new SharpMap.Rendering.Symbolizer.WarpedLineSymbolizeHander

{

Pattern =

SharpMap.Rendering.Symbolizer.WarpedLineSymbolizer.

GetTriangle(4, 0),

Line = new System.Drawing.Pen(System.Drawing.Color.Firebrick, 1),

Fill = new System.Drawing.SolidBrush(System.Drawing.Color.Firebrick)

,Interval = 10

};

sw.Reset(); sw.Start();

bmp = m.GetMap();

sw.Stop();

System.Console.WriteLine(string.Format("Rendering new method: {0}ms", sw.ElapsedMilliseconds));

bmp.Save("AurichRoads2-0.bmp");

cls.LineSymbolizeHandlers[1] = new SharpMap.Rendering.Symbolizer.WarpedLineSymbolizeHander

{

Pattern =

SharpMap.Rendering.Symbolizer.WarpedLineSymbolizer.

GetTriangle(4, 1),

Line = new System.Drawing.Pen(System.Drawing.Color.Firebrick, 1),

Fill = new System.Drawing.SolidBrush(System.Drawing.Color.Firebrick)

Interval = 10

};

sw.Reset(); sw.Start();

bmp = m.GetMap();

sw.Stop();

System.Console.WriteLine(string.Format("Rendering new method: {0}ms", sw.ElapsedMilliseconds));

bmp.Save("AurichRoads2-1.bmp");

cls.LineSymbolizeHandlers[1] = new SharpMap.Rendering.Symbolizer.WarpedLineSymbolizeHander

{

Pattern =

SharpMap.Rendering.Symbolizer.WarpedLineSymbolizer.

GetTriangle(4, 2),

Line = new System.Drawing.Pen(System.Drawing.Color.Firebrick, 1),

Fill = new System.Drawing.SolidBrush(System.Drawing.Color.Firebrick)

Interval = 10

};

sw.Reset(); sw.Start();

bmp = m.GetMap();

sw.Stop();

System.Console.WriteLine(string.Format("Rendering new method: {0}ms", sw.ElapsedMilliseconds));

bmp.Save("AurichRoads2-2.bmp");

cls.LineSymbolizeHandlers[1] = new SharpMap.Rendering.Symbolizer.WarpedLineSymbolizeHander

{

Pattern =

SharpMap.Rendering.Symbolizer.WarpedLineSymbolizer.

GetTriangle(4, 3),

Line = new System.Drawing.Pen(System.Drawing.Color.Firebrick, 1),

Fill = new System.Drawing.SolidBrush(System.Drawing.Color.Firebrick)

Interval = 10

};

sw.Reset(); sw.Start();

bmp = m.GetMap();

sw.Stop();

System.Console.WriteLine(string.Format("Rendering new method: {0}ms", sw.ElapsedMilliseconds));

bmp.Save("AurichRoads2-3.bmp");

//cls.LineSymbolizeHandlers[0] = cls.LineSymbolizeHandlers[1];

cls.LineSymbolizeHandlers[1] = new SharpMap.Rendering.Symbolizer.WarpedLineSymbolizeHander

{

Pattern =

SharpMap.Rendering.Symbolizer.WarpedLineSymbolizer.GetZigZag(4, 4),

Line = new System.Drawing.Pen(System.Drawing.Color.Firebrick, 1),

//Fill = new System.Drawing.SolidBrush(System.Drawing.Color.Firebrick)

};

sw.Reset(); sw.Start();

bmp = m.GetMap();

sw.Stop();

System.Console.WriteLine(string.Format("Rendering new method: {0}ms", sw.ElapsedMilliseconds));

bmp.Save("AurichRoads3.bmp");

}

[NUnit.Framework.Test]

public void TestCachedLineSymbolizerInTheme()

{

if (!System.IO.File.Exists("d:\\daten\\GeoFabrik\\Aurich\\roads.shp"))

throw new NUnit.Framework.IgnoreException("");

var p = new SharpMap.Data.Providers.ShapeFile(@"d:\\daten\\GeoFabrik\\Aurich\\roads.shp", false);

var l = new SharpMap.Layers.VectorLayer("roads", p);

var theme = new ClsTheme(l.Style);

l.Theme = theme;

var m = new SharpMap.Map(new System.Drawing.Size(720, 540)) { BackColor = System.Drawing.Color.Cornsilk };

m.Layers.Add(l);

m.ZoomToExtents();

var sw = new System.Diagnostics.Stopwatch();

sw.Start();

var bmp = m.GetMap();

sw.Stop();

System.Console.WriteLine(string.Format("Rendering new method: {0}ms", sw.ElapsedMilliseconds));

bmp.Save("AurichRoads1Theme.bmp");

}

internal class ClsTheme : SharpMap.Rendering.Thematics.ITheme

{

private SharpMap.Styles.VectorStyle _style;

public ClsTheme(SharpMap.Styles.VectorStyle style)

{

_style = style;

}

#region Implementation of ITheme

/// <summary>

/// Returns the style based on a feature

/// </summary>

/// <param name="attribute">Set of attribute values to calculate the <see cref="SharpMap.Styles.IStyle"/> from</param>

/// <returns>The style</returns>

public SharpMap.Styles.IStyle GetStyle(SharpMap.Data.FeatureDataRow attribute)

{

var res = _style;

var cls = new SharpMap.Rendering.Symbolizer.CachedLineSymbolizer();

cls.LineSymbolizeHandlers.Add(new SharpMap.Rendering.Symbolizer.PlainLineSymbolizeHandler { Line = new System.Drawing.Pen(System.Drawing.Color.Gold, 2) });

var wls = new SharpMap.Rendering.Symbolizer.WarpedLineSymbolizeHander

{

Pattern =

SharpMap.Rendering.Symbolizer.WarpedLineSymbolizer.

GetGreaterSeries(3, 3),

Line = new System.Drawing.Pen(System.Drawing.Color.Firebrick, 1)

Interval = 20

};

cls.LineSymbolizeHandlers.Add(wls);

cls.ImmediateMode = true;

res.LineSymbolizer = cls;

return res;

}

#endregion

}

[NUnit.Framework.Test]

public void TestTransformation()

{

var m = new SharpMap.Map(new System.Drawing.Size(640, 320));

var l = new SharpMap.Layers.Symbolizer.PuntalVectorLayer("l",

new SharpMap.Data.Providers.GeometryProvider(m.Factory.CreatePoint(new GeoAPI.Geometries.Coordinate(0, 51.478885))),

SharpMap.Rendering.Symbolizer.PathPointSymbolizer.CreateCircle(System.Drawing.Pens.Aquamarine, System.Drawing.Brushes.BurlyWood, 24));

var ctFact = new ProjNet.CoordinateSystems.Transformations.CoordinateTransformationFactory();

l.CoordinateTransformation = ctFact.CreateFromCoordinateSystems(ProjNet.CoordinateSystems.GeographicCoordinateSystem.WGS84, ProjNet.CoordinateSystems.ProjectedCoordinateSystem.WebMercator);

l.ReverseCoordinateTransformation = ctFact.CreateFromCoordinateSystems(ProjNet.CoordinateSystems.ProjectedCoordinateSystem.WebMercator, ProjNet.CoordinateSystems.GeographicCoordinateSystem.WGS84);

m.Layers.Add(new SharpMap.Layers.TileLayer(BruTile.Predefined.KnownTileSources.Create(),"b"));

m.Layers.Add(l);

var e = new GeoAPI.Geometries.Envelope(-0.02, 0.02, 51.478885 - 0.01, 51.478885 + 0.01);

e = GeoAPI.CoordinateSystems.Transformations.GeometryTransform.TransformBox(e,

l.CoordinateTransformation.MathTransform);

m.ZoomToBox(e);

m.GetMap().Save("Greenwich.png", System.Drawing.Imaging.ImageFormat.Png);

}

SharpMap/Examples/ExampleCodeSnippets/LineSymbolizerTest.cs at main · SharpMap/SharpMap · GitHub

Repository navigation

Expand file tree

Breadcrumbs

LineSymbolizerTest.cs

Latest commit

History

Breadcrumbs

LineSymbolizerTest.cs

File metadata and controls