Ī map layer is 3D if it stores z-values as part of its geometry. On the Quick Access Toolbar, click Save.You can drag elevation layers up and down within the Elevation Surfaces category. You should put high-resolution layers above low-resolution layers. To learn more about custom elevation surfaces, see Elevation surfaces.Įlevation layers are used in the order in which they are listed in the Contents pane. However, surfaces can represent other topographies, such as cave floors or lake beds, if you have suitable datasets. In most scenes, the elevation surface represents the ground: the topography of the earth's surface. Map layers will use the elevation values of the high-resolution layer where they are available. The Kelburn suburb at a resolution of 1 meter. In this section, you'll add a second ground elevation layer. For example, a high-resolution layer may provide elevation values for a small area of interest, while a low-resolution layer provides elevation values for surrounding areas. You can add more than one layer to an elevation surface. WorldElevation3D/Terrain3D is a fairly low-resolution surface. Surfaces that cover large areas generally have lower resolution (less detail) than surfaces that cover small areas. The resolution of the surface-the amount of elevation detail it contains-may be high or low. In the next section, you'll add another elevation surface to the scene to provide more detailed elevation values for the Kelburn suburb.Īdd another elevation surface to the sceneĪn elevation surface is a raster or TIN dataset (or a web elevation layer created from a raster dataset) that stores elevation values for a continuous geographic area. Alternatively, use the on-screen navigator in the lower left corner of the scene. Use the mouse buttons and mouse wheel to zoom, pan, tilt, and rotate the scene.In the Navigate group, make sure the Explore tool is selected. Of the world, open the Elevation Coverage Map.įrom the current perspective, the scene doesn't look very 3D, but you'll take a few moments to explore it from other perspectives.
WorldElevation3D/Terrain3D resolution and data source for any part Square meters of area (31 meters squared). Meters, meaning there is one elevation value for every 961 In New Zealand, the resolution is approximately 31 It's a composite of many elevation maps with varying WorldElevation3D/Terrain3D is a worldwide elevation surface. (Expand the Ground heading to see the layer.) This layer provides elevation values for the 2D map layers so they draw in 3D space. At the bottom of the pane is an Elevation Surfaces category with a ground layer named WorldElevation3D/Terrain3D. In the Contents pane, the map layers have been copied to the scene. They use the WGS 1984 geographic coordinate system. Global scenes don't support projected coordinate systems. Local scenes support projected coordinate systems. You can view any scene as a global scene or a local scene by clicking Global or Local in the View group on the View tab.
0 kommentar(er)
