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C# GeoPoint.getAbsolute方法代码示例

本文整理汇总了C#中GeoPoint.getAbsolute方法的典型用法代码示例。如果您正苦于以下问题:C# GeoPoint.getAbsolute方法的具体用法?C# GeoPoint.getAbsolute怎么用?C# GeoPoint.getAbsolute使用的例子?那么恭喜您, 这里精选的方法代码示例或许可以为您提供帮助。您也可以进一步了解该方法所在GeoPoint的用法示例。


在下文中一共展示了GeoPoint.getAbsolute方法的1个代码示例,这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞,您的评价将有助于系统推荐出更棒的C#代码示例。

示例1: applyOverlayTexturing

        protected void applyOverlayTexturing(osg.Geometry geom, Feature input, FilterEnv env)
        {
            GeoExtent tex_extent;

            if (getRasterOverlayScript() != null)
            {
                // if there's a raster script for this filter, we're applying textures per-feature:
                tex_extent = new GeoExtent(
                    input.getExtent().getSouthwest().getAbsolute(),
                    input.getExtent().getNortheast().getAbsolute());
            }
            else
            {
                // otherwise prepare the geometry for an overlay texture covering the entire working extent:
                tex_extent = env.getExtent();
            }

            float width = (float)tex_extent.getWidth();
            float height = (float)tex_extent.getHeight();

            // now visit the verts and calculate texture coordinates for each one.
            osg.Vec3Array verts = (osg.Vec3Array)(geom.getVertexArray());
            if (verts != null)
            {
                // if we are dealing with geocentric data, we will need to xform back to a real
                // projection in order to determine texture coords:
                GeoExtent tex_extent_geo;
                if (env.getInputSRS().isGeocentric())
                {
                    tex_extent_geo = new GeoExtent(
                        tex_extent.getSRS().getGeographicSRS().transform(tex_extent.getSouthwest()),
                        tex_extent.getSRS().getGeographicSRS().transform(tex_extent.getNortheast()));
                }

                osg.Vec2Array texcoords = new osg.Vec2Array(verts.size());
                for (int j = 0; j < verts.size(); j++)
                {
                    // xform back to raw SRS w.o. ref frame:
                    GeoPoint vert = new GeoPoint(verts[j], env.getInputSRS());
                    GeoPoint vert_map = vert.getAbsolute();
                    float tu, tv;
                    if (env.getInputSRS().isGeocentric())
                    {
                        tex_extent_geo.getSRS().transformInPlace(vert_map);
                        tu = (vert_map.X - tex_extent_geo.getXMin()) / width;
                        tv = (vert_map.Y - tex_extent_geo.getYMin()) / height;
                    }
                    else
                    {
                        tu = (vert_map.X - tex_extent.getXMin()) / width;
                        tv = (vert_map.Y - tex_extent.getYMin()) / height;
                    }
                    (*texcoords)[j].set(tu, tv);
                }
                geom.setTexCoordArray(0, texcoords);
            }

            // if we are applying the raster per-feature, do so now.
            // TODO: deprecate? will we ever use this versus the BuildNodesFilter overlay? maybe
            if (getRasterOverlayScript() != null)
            {
                ScriptResult r = env.getScriptEngine().run(getRasterOverlayScript(), input, env);
                if (r.isValid())
                {
                    RasterResource raster = env.getSession().getResources().getRaster(r.asString());
                    if (raster != null)
                    {
                        Image image = null;
                        std.stringstream builder;
                        builder << "rtex_" << input.getOID() << ".jpg"; //TODO: dds with DXT1 compression

                        osg.StateSet raster_ss = new osg.StateSet();
                        if (raster.applyToStateSet(raster_ss.get(), tex_extent, getRasterOverlayMaxSize(), out image))
                        {
                            image.setFileName(builder.str());
                            geom.setStateSet(raster_ss.get());

                            // add this as a skin resource so the compiler can properly localize and deploy it.
                            env.getResourceCache().addSkin(raster_ss.get());
                        }
                    }
                }
                else
                {
                    env.getReport().error(r.asString());
                }
            }
        }
开发者ID:agustinsantos,项目名称:mogregis3d,代码行数:88,代码来源:BuildGeomFilter.cs


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