For synchronization reasons you may want to split the resulting file in parts of e.g. Normally centimeter accuracy is more than enough, sometimes you can easily go to decimeters, which compresses much better of course. You can also define an accuracy of the compressed values. As the resulting file should be in meters (see below why) you may need to specify a conversion factor from eg. You can prepare a CTA (coverage tile archive) with the F12 menu in the explorer (F12 -> convert -> convert ascii grid to coverage tile archive).
Basemap wms url wiki zip#
The compression is done per scale and in tiles and archived in a zip file, pretty similar as openStreetMap works. Since 2013.01 FEWS enables using a compressed grid file for your DEM. Some of these layers will be explained below. All configured layers will be shown in the layer selection panel, where they can be turned on/off by the user. Many different types of layers can be defined to be included in the map. More info on connection to ArcSDE and WFS can be found here. wmsConnectionĭefines a Web Map Service (WMS) connection that can be referenced by a wmsLayer. Notice that you need to specify a mapLayersCacheDir in the global.properties, like mapLayersCacheDir=%REGION_HOME%/MapCache ExampleĪn example configuration containing two extents is shown below.įor downloading layers from servers, sever different types of connections can be established. extraExtentĭefinition of the additional zoom extents. defaultExtentĭefinition of the default zoom extent. In combination with WMS services only (web-) mercator is possible.
One can use various projections: mercator, web_mercator, orthographic, llxy and gnomonic. Enumeration of of geoDatums of many different coordinate systems are available in Appendix B. A geoDatum is the coordinate system the extents, or map layers are defined in. Note that in displaying the maps for the extent defined, the map display will be scaled to fit the extent in the current display window.Ĭonfiguration of a geoDatum is important for the display of map layers in the FEWs Explorer and Grid display. Left, right, top, bottom: Coordinates of the zoom extent. name: name of the zoom extent (displayed in the drop-down list).Selecting an extent will change the view window of the map to the specified location.Įach extent contains the following attributes: The extents defined will appear in a drop down list in the toolbar above the map. Optional description of the configuration.