osgEarth编程基础 DEMO:搭建earth功能实现

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资源摘要信息:"osgEarth编程DEMO详细解析" 根据提供的文件信息,本DEMO是关于如何使用osgEarth库实现一个简单地球模型搭建的编程示例。以下是对标题、描述、标签以及文件名列表中涉及的知识点的详细解析。 标题解析: 标题中的“ConsoleApplication2_osgearth_osgearth编程_DEMO”告诉我们,这个DEMO是一个控制台应用程序(ConsoleApplication2),使用了osgEarth库来进行编程,并且是关于osgEarth编程的一个演示(DEMO)。通常,控制台应用程序指的是没有图形用户界面的命令行程序,而osgEarth是一个开源的地球引擎,允许开发者在应用程序中嵌入地球视图和地图数据。 描述解析: 描述中提到,“osgEarth编程demo,主要实现搭建earth的功能”,这说明此DEMO的核心功能是演示如何使用osgEarth API来构建一个基本的地球视图。地球视图的搭建通常涉及加载地图数据、设置相机视角、添加地形细节、配置图层和图层样式等。这些功能共同作用于模拟一个交互式和视觉上真实的地球环境。 标签解析: 标签“osgearth osgearth编程 DEMO”进一步强化了上述关于标题和描述的解释,它们再次确认了本DEMO涉及的主题是osgEarth库及其编程接口,并且是一个示范项目。 压缩包子文件的文件名称列表解析: 文件名称列表中只有一个项“ConsoleApplication2”,它重复了标题中关于控制台应用程序的部分,这可能意味着该压缩包中只包含一个文件。根据标题和描述的解析,我们可以推断这个文件很可能是一个C++源代码文件,其中包含了使用osgEarth库进行地球视图搭建的示例代码。 知识点详细说明: 1. osgEarth简介: osgEarth是一个开源的地球引擎库,它基于OpenGL和OpenSceneGraph(OSG),用于在3D图形应用程序中实现地图和地球的可视化。osgEarth允许开发者快速地集成和显示地图数据,提供了丰富的API来定制地图样式、添加图层、控制地形的渲染效果等。 2. OpenSceneGraph (OSG): OSG是一个高性能的图形工具包和场景图库,广泛用于虚拟现实、游戏开发、模拟和可视化等领域。它是使用C++编写的,并且具有跨平台特性。由于osgEarth建立在OSG之上,因此它继承了OSG的3D图形渲染能力和场景管理功能。 3. 控制台应用程序: 控制台应用程序是一种没有图形用户界面(GUI)的程序,用户通过命令行与之交互。这类程序一般用于运行批处理任务、系统工具或一些简单的命令行界面应用程序。由于没有图形界面的负担,控制台应用程序通常具有较高的执行效率和较小的资源占用。 4. 地球视图搭建: 在控制台应用程序中搭建地球视图通常涉及到地形生成、地图渲染、相机控制和用户交互等关键技术点。地形生成是指构建出三维的地形模型;地图渲染则是将地图数据覆盖到地形模型上;相机控制是指设置视角,以便从不同的角度查看地球模型;用户交互则包括对用户输入的响应,如鼠标操作来旋转和缩放视图。 5. 示例代码解析: 在本DEMO中,开发者可以期待找到关于如何设置场景、初始化地图、添加基本的图层(如地形、影像、地形着色等)、以及如何通过控制台输入来控制相机视角和进行基本交互的示例代码。这些代码将演示如何使用osgEarth API实现上述功能,对于学习osgEarth编程来说具有很高的参考价值。 总结: 通过解析上述知识点,可以看出ConsoleApplication2_osgearth_osgearth编程_DEMO主要面向希望了解如何使用osgEarth进行基本地球视图搭建的开发者。该DEMO提供了一个简单的编程实例,通过这个实例,开发者可以学习如何在控制台应用程序中利用osgEarth库来实现地球模型的渲染和交互,从而为进一步开发更复杂的3D地理信息系统打下基础。
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osgEarth 的 121 个案例详解 osgEarth 的 121 个案例详解 ...........................................................................................................1 1. aeqd.earth.................................................................................................................................4 2. annotation.earth .......................................................................................................................5 3. annotation_dateline.earth........................................................................................................6 4. annotation_dateline_projected.earth ......................................................................................8 5. annotation_flat.earth................................................................................................................8 6. arcgisonline.earth .....................................................................................................................9 7. bing.earth................................................................................................................................10 8. boston.earth............................................................................................................................11 9. boston_buildings.earth ...........................................................................................................12 10. boston_projected.earth ..................................................................................................13 11. boston_tfs.earth..............................................................................................................14 12. boston-gpu.earth ............................................................................................................15 13. bumpmap.earth ..............................................................................................................16 14. clouds.earth ....................................................................................................................17 15. colorramp.earth ..............................................................................................................18 16. contourmap.earth ...........................................................................................................19 17. datum_override.earth.....................................................................................................20 18. day_night_mp.earth........................................................................................................21 19. day_night_rex.earth........................................................................................................21 20. detail_texture.earth ........................................................................................................21 21. errors.earth .....................................................................................................................22 22. fade_elevation.earth.......................................................................................................22 23. feature_clip_plane.earth.................................................................................................23 24. feature_country_boundaries.earth.................................................................................24 25. feature_custom_filters.earth ..........................................................................................25 26. feature_draped_lines.earth ............................................................................................26 27. feature_draped_polygons.earth .....................................................................................27 28. feature_elevation.earth ..................................................................................................28 29. feature_extrude.earth.....................................................................................................29 30. feature_geom.earth ........................................................................................................30 31. feature_gpx.earth............................................................................................................31 32. feature_inline_geometry.earth.......................................................................................32 33. feature_labels.earth........................................................................................................33 34. feature_labels_script.earth.............................................................................................35 35. feature_levels_and_selectors.earth................................................................................35 36. feature_model_scatter.earth ..........................................................................................36 37. feature_models.earth .....................................................................................................37 38. feature_occlusion_culling.earth......................................................................................38osgEarth 编辑器 SXEarth www.sxsim.com 2 39. feature_offset_polygons.earth .......................................................................................38 40. feature_overlay.earth......................................................................................................39 41. feature_poles.earth.........................................................................................................40 42. feature_population_cylinders.earth ...............................................................................40 43. feature_raster.earth ........................................................................................................41 44. feature_rasterize.earth ...................................................................................................41 45. feature_rasterize_2.earth ...............................................................................................42 46. feature_scripted_styling.earth........................................................................................43 47. feature_scripted_styling_2.earth....................................................................................43 48. feature_scripted_styling_3.earth....................................................................................43 49. feature_style_selector.earth ...........................................................................................44 50. feature_tfs.earth .............................................................................................................45 51. feature_tfs_scripting.earth .............................................................................................46 52. feature_wfs.earth............................................................................................................47 53. fractal_elevation.earth....................................................................................................47 54. gdal_multiple_files.earth ................................................................................................47 55. gdal_tiff.earth..................................................................................................................48 56. geomshader.earth ...........................................................................................................49 57. glsl.earth..........................................................................................................................50 58. glsl_filter.earth ................................................................................................................51 59. graticules.earth ...............................................................................................................52 60. hires-inset.earth..............................................................................................................53 61. intersect_filter.earth .......................................................................................................54 62. land_cover_mixed.earth .................................................................................................55 63. layer_opacity.earth .........................................................................................................55 64. ldb.earth..........................................................................................................................56 65. mapbox.earth..................................................................................................................56 66. mask.earth ......................................................................................................................57 67. mb_tiles.earth.................................................................................................................58 68. mercator_to_plate_carre.earth ......................................................................................59 69. mgrs_graticule.earth.......................................................................................................60 70. min_max_level.earth ......................................................................................................60 71. min_max_range.earth.....................................................................................................61 72. min_max_range_rex.earth..............................................................................................62 73. min_max_resolutions.earth............................................................................................62 74. multiple_heightfields.earth.............................................................................................64 75. night.earth.......................................................................................................................65 76. nodata.earth ...................................................................................................................65 77. noise.earth ......................................................................................................................68 78. normalmap.earth ............................................................................................................68 79. ocean.earth .....................................................................................................................69 80. ocean_no_elevation.earth ..............................................................................................69 81. openstreetmap.earth......................................................................................................69 82. openstreetmap_buildings.earth .....................................................................................70osgEarth 编辑器 SXEarth www.sxsim.com 3 83. openstreetmap_flat.earth...............................................................................................70 84. openstreetmap_full.earth...............................................................................................70 85. openweathermap_clouds.earth......................................................................................71 86. openweathermap_precipitation.earth ...........................................................................71 87. openweathermap_pressure.earth ..................................................................................71 88. photosphere1.earth ........................................................................................................71 89. photosphere2.earth ........................................................................................................72 90. readymap.earth...............................................................................................................73 91. readymap_flat.earth .......................................................................................................73 92. readymap_include.earth.................................................................................................74 93. readymap_template.earth..............................................................................................74 94. readymap-elevation-only.earth.......................................................................................74 95. readymap-osm.earth ......................................................................................................75 96. readymap-priority.earth..................................................................................................75 97. readymap-rex.earth ........................................................................................................75 98. roads.earth......................................................................................................................76 99. roads-flattened.earth......................................................................................................76 100. roads-test.earth...............................................................................................................76 101. scene_clamping.earth.....................................................................................................76 102. silverlining.earth..............................................................................................................78 103. simple_model.earth........................................................................................................78 104. skyview1.earth ................................................................................................................79 105. skyview2.earth ................................................................................................................80 106. splat.earth .......................................................................................................................81 107. splat-blended-with-imagery.earth ..................................................................................81 108. splat-with-mask-layer.earth.............................................................................................81 109. splat-with-multiple-zones.earth......................................................................................82 110. splat-with-rasterized-land-cover.earth............................................................................82 111. stamen_toner.earth ........................................................................................................82 112. stamen_watercolor.earth................................................................................................82 113. state_plane.earth............................................................................................................82 114. tess_screen_space.earth.................................................................................................82 115. tess-coastlines.earth .......................................................................................................82 116. tess-terrain.earth ............................................................................................................83 117. triton.earth......................................................................................................................83 118. triton_drop_shader.earth................................................................................................83 119. utm.earth ........................................................................................................................83 120. utm_graticule.earth ........................................................................................................83 121. vertical_datum.earth ......................................................................................................83 122. wms_nexrad.earth ..........................................................................................................84 123. wms-t_nexrad_animated.earth ......................................................................................84 124. 编辑问题总结....................................................................................错误!未定义书签。