画圆成功:osgearth的osgdemo01调试示例

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资源摘要信息: "osgdemo01-n.zip" 在详细探讨给定文件的信息之前,需要解释一下OSG和OSGEarth的基本概念。OSG是指OpenSceneGraph(开源场景图),它是一个开源的高性能图形库,广泛应用于虚拟现实、模拟、游戏开发以及可视化领域。OSGEarth则是基于OpenSceneGraph的一个模块,专门用于创建地球相关的虚拟场景,如地形、影像和地图数据的集成。 从标题"osgdemo01-n.zip"中可以了解到,这是一个关于OpenSceneGraph的示例项目压缩包,"demo"一词表示该压缩包内含的是演示性质的源代码或可执行文件。特别地,"n"可能表示这是一个特定的版本或者迭代的示例文件,不过没有具体信息无法确定其具体含义。标题中的"osg"表明该示例可能着重于OpenSceneGraph的某些功能,如几何图形绘制。 在描述"osg画圆调试通过的demo"中,我们可以推断出这个文件是关于如何在OpenSceneGraph中绘制圆形的一个示例。在3D图形编程中,绘制一个基本的圆形通常涉及将圆分解为多个小的线段或三角形,然后利用这些元素来近似地表示一个圆形。由于OSG的场景图概念,用户可能会使用特定的节点(如Geometry或DrawArrays等)来定义圆形的几何形状,并且可能涉及到材质、颜色或其他视觉属性的设置,以便在调试过程中能够验证圆形是否正确绘制。 关于标签"osgearth",我们可以推测这个demo可能不仅仅是一个关于几何绘制的示例,还可能涉及到OSGEarth的使用。这意味着示例项目可能会演示如何在OSG中整合地球模型,并在地球表面绘制圆形。这可能是通过加载地形数据、创建大地坐标系的节点、将圆形放置在正确的地理位置等方式来实现的。 从压缩包文件名称列表"osgdemo01"中,我们可以知道这个压缩包内可能包含一个或多个文件,这些文件可能包括源代码文件、可执行文件、资源文件或者配置文件等。由于只有一个文件名,我们无法确定包含的具体文件类型,但可以合理猜测文件名"osgdemo01"是该项目的主要或唯一文件,这可能是源代码文件,也可能是打包后的应用程序文件。 由于没有具体的文件内容提供,无法更详细地讨论该项目中可能使用的编程语言、算法细节、图形渲染技术等,但可以肯定的是,这个资源将对于想要学习如何使用OpenSceneGraph或OSGEarth来绘制基本图形,尤其是圆形的开发者来说非常有价值。此外,了解这个示例如何将图形绘制到3D场景中,特别是地球模型上,对于那些希望在OSG项目中实现地理可视化功能的开发者来说,也是一个很好的学习材料。
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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。